Add flaps: flappable tag, flap lever on the control node, flap physics (0.4.0)

Shift-right-click a block in improved_aerodynamics:flappable to make it a flap.
G/H step the node's flap lever UP/TAKEOFF/LANDING; flaps slew to the configured
angle, add lift and drag and raise the stall angle, and retract above a max speed.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YVREx3uo7nz1FEhzveWTUh

build.gradle

@@ -58,6 +58,13 @@ repositories {
             includeGroup "maven.modrinth"
         }
     }
+    maven {
+        name = "AzureDoom Mods"
+        url = "https://maven.azuredoom.com/mods"
+        content {
+            includeGroup "mod.azure.azurelib"
+        }
+    }
     // Warium VS is not on Modrinth, it is compiled against the jar in libs/
     flatDir {
         dir 'libs'
@@ -73,9 +80,12 @@ dependencies {
     compileOnly files('libs/vs-core-api-1.1.0.jar', 'libs/vs-core-util-1.1.0.jar', 'libs/joml-primitives-1.10.0.jar')
     compileOnly 'org.jetbrains.kotlin:kotlin-stdlib:1.9.22'
 
-    // Warium VS 1.1.6 and Futurism 0.0.4 (optional dependencies, the flight physics mixins only apply when they are present)
+    // Warium VS 1.1.7 and Futurism 0.0.4 (optional dependencies, the flight physics mixins only apply when they are present)
-    compileOnly fg.deobf("blank:WariumVS:1.1.6")
+    compileOnly fg.deobf("blank:WariumVS:1.1.7")
     compileOnly fg.deobf("blank:futurism:0.0.4")
+
+    // AzureLib 3.2.7 for the animated block models (optional dependency, the common jar uses obfuscated names, so it is remapped)
+    compileOnly fg.deobf("mod.azure.azurelib:azurelib-common-${minecraft_version}:${azurelib_version}")
 }
 
 

gradle.properties

@@ -12,7 +12,8 @@ mapping_version=2023.09.03-1.20.1
 mod_id=improved_aerodynamics
 mod_name=VS: Improved Aerodynamics
 mod_license=MIT
-mod_version=0.3.0
+mod_version=0.4.0
+azurelib_version=3.2.7
 mod_group_id=dev.lumareth.improvedaerodynamics
 mod_authors=Lumareth
 mod_description=Valkyrien Skies addon that keeps terrain streaming ahead of fast ships and smooths out Warium flight physics, with an optional flight model with real stalls and auto trim.

src/main/java/dev/lumareth/improvedAerodynamics/Config.java

@@ -131,12 +131,78 @@ public final class Config {
             .comment("Auto trim: below this airspeed (blocks per second) the trim holds its current value")
             .defineInRange("trimMinSpeed", 10.0D, 0.0D, 100.0D);
 
+    public static final ForgeConfigSpec.DoubleValue FLAP_TAKEOFF_DEGREES = BUILDER
+            .comment("Flaps: deflection in degrees of flaps at the takeoff setting. Flaps need the improved flight model")
+            .defineInRange("flapTakeoffDegrees", 15.0D, 0.0D, 60.0D);
+
+    public static final ForgeConfigSpec.DoubleValue FLAP_LANDING_DEGREES = BUILDER
+            .comment("Flaps: deflection in degrees of flaps at the landing setting")
+            .defineInRange("flapLandingDegrees", 35.0D, 0.0D, 60.0D);
+
+    public static final ForgeConfigSpec.DoubleValue FLAP_SLEW_DEGREES = BUILDER
+            .comment("Flaps: how fast they move, in degrees per second")
+            .defineInRange("flapSlewDegrees", 10.0D, 1.0D, 90.0D);
+
+    public static final ForgeConfigSpec.DoubleValue FLAP_TAKEOFF_MAX_SPEED = BUILDER
+            .comment("Flaps: airspeed in blocks per second above which the air pushes takeoff flaps back in, fully retracted at 25% more")
+            .defineInRange("flapTakeoffMaxSpeed", 45.0D, 1.0D, 1000.0D);
+
+    public static final ForgeConfigSpec.DoubleValue FLAP_LANDING_MAX_SPEED = BUILDER
+            .comment("Flaps: the same for the landing setting")
+            .defineInRange("flapLandingMaxSpeed", 35.0D, 1.0D, 1000.0D);
+
+    static {
+        BUILDER.pop();
+        BUILDER.comment("Vectored afterburner nozzle block").push("nozzle");
+    }
+
+    public static final ForgeConfigSpec.DoubleValue NOZZLE_MAX_DEFLECTION = BUILDER
+            .comment("Largest angle in degrees the nozzle can swing to either side")
+            .defineInRange("maxDeflectionDegrees", 20.0D, 1.0D, 45.0D);
+
+    public static final ForgeConfigSpec.DoubleValue NOZZLE_SLEW_RATE = BUILDER
+            .comment("Fastest the nozzle swings, in degrees per second, so it never snaps to a new angle")
+            .defineInRange("slewRateDegreesPerSecond", 90.0D, 5.0D, 720.0D);
+
+    public static final ForgeConfigSpec.DoubleValue AFTERBURNER_MIN_THROTTLE = BUILDER
+            .comment("Lowest throttle value on the vehicle control node (0 to 10) at which the afterburner key lights the",
+                    "afterburner. It goes out by itself when the throttle falls below it")
+            .defineInRange("afterburnerMinThrottle", 8.0D, 0.0D, 10.0D);
+
+    public static final ForgeConfigSpec.ConfigValue<String> EXHAUST_STYLE = BUILDER
+            .comment("How every jet exhaust looks: Warium's jet exhaust and VTOL exhaust, Futurism's vectored afterburner and",
+                    "this mod's nozzle. wariumvs for Warium's own effect entities, improved for the big flame, particles and",
+                    "afterburner sound of this mod. Warium's engine sound is kept in both")
+            .defineInList("exhaustStyle", "improved", java.util.List.of("wariumvs", "improved"));
+
+    public static final ForgeConfigSpec.DoubleValue NOZZLE_YAW_MIX = BUILDER
+            .comment("How much of the yaw input goes into the nozzles' differential deflection. The nozzles are canted, so",
+                    "deflecting them against each other pushes the tail sideways as well as rolling the craft, like on an",
+                    "Su-57. 0 turns yaw vectoring off, a negative value turns it around")
+            .defineInRange("yawMix", 0.6D, -1.0D, 1.0D);
+
+    public static final ForgeConfigSpec.BooleanValue NOZZLE_LIGHT = BUILDER
+            .comment("The nozzle gives off light while its afterburner is lit")
+            .define("lightEnabled", true);
+
     static {
         BUILDER.pop();
     }
 
     static final ForgeConfigSpec SPEC = BUILDER.build();
 
+    private static final ForgeConfigSpec.Builder CLIENT_BUILDER = new ForgeConfigSpec.Builder();
+
+    public static final ForgeConfigSpec.BooleanValue NOZZLE_PARTICLES = CLIENT_BUILDER
+            .comment("Jet exhaust in the improved style: smoke at dry thrust and fire in afterburner")
+            .define("particlesEnabled", true);
+
+    public static final ForgeConfigSpec.BooleanValue NOZZLE_SOUND = CLIENT_BUILDER
+            .comment("Vectored afterburner nozzle: afterburner ignition and heavy afterburner sound")
+            .define("soundEnabled", true);
+
+    static final ForgeConfigSpec CLIENT_SPEC = CLIENT_BUILDER.build();
+
     private Config() {
     }
 }

src/main/java/dev/lumareth/improvedAerodynamics/ConfigCommands.java

@@ -3,10 +3,13 @@ package dev.lumareth.improvedAerodynamics;
 import com.mojang.brigadier.arguments.ArgumentType;
 import com.mojang.brigadier.arguments.BoolArgumentType;
 import com.mojang.brigadier.arguments.DoubleArgumentType;
+import com.mojang.brigadier.arguments.StringArgumentType;
 import com.mojang.brigadier.builder.LiteralArgumentBuilder;
 import com.mojang.brigadier.tree.LiteralCommandNode;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleCommands;
 import net.minecraft.commands.CommandSourceStack;
 import net.minecraft.commands.Commands;
+import net.minecraft.commands.SharedSuggestionProvider;
 import net.minecraft.network.chat.Component;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraftforge.common.ForgeConfigSpec;
@@ -22,7 +25,11 @@ import java.util.List;
  * All of them are read live, so changes apply immediately.
  */
 public final class ConfigCommands {
-    private record Option<T>(String name, ForgeConfigSpec.ConfigValue<T> value, ArgumentType<T> argument, Class<T> type) {
+    private record Option<T>(String name, ForgeConfigSpec.ConfigValue<T> value, ArgumentType<T> argument, Class<T> type,
+                             List<String> choices) {
+        Option(String name, ForgeConfigSpec.ConfigValue<T> value, ArgumentType<T> argument, Class<T> type) {
+            this(name, value, argument, type, List.of());
+        }
     }
 
     private static final List<Option<?>> OPTIONS = List.of(
@@ -44,6 +51,17 @@ public final class ConfigCommands {
             new Option<>("trim_authority", Config.TRIM_AUTHORITY, DoubleArgumentType.doubleArg(), Double.class),
             new Option<>("trim_min_speed", Config.TRIM_MIN_SPEED, DoubleArgumentType.doubleArg(), Double.class),
             new Option<>("air_placeholder", Config.ENABLE_AIR_PLACEHOLDER, BoolArgumentType.bool(), Boolean.class),
+            new Option<>("nozzle_max_deflection", Config.NOZZLE_MAX_DEFLECTION, DoubleArgumentType.doubleArg(), Double.class),
+            new Option<>("nozzle_slew_rate", Config.NOZZLE_SLEW_RATE, DoubleArgumentType.doubleArg(), Double.class),
+            new Option<>("afterburner_min_throttle", Config.AFTERBURNER_MIN_THROTTLE, DoubleArgumentType.doubleArg(), Double.class),
+            new Option<>("exhaust_style", Config.EXHAUST_STYLE, StringArgumentType.word(), String.class, List.of("wariumvs", "improved")),
+            new Option<>("nozzle_yaw_mix", Config.NOZZLE_YAW_MIX, DoubleArgumentType.doubleArg(), Double.class),
+            new Option<>("nozzle_light", Config.NOZZLE_LIGHT, BoolArgumentType.bool(), Boolean.class),
+            new Option<>("flap_takeoff_degrees", Config.FLAP_TAKEOFF_DEGREES, DoubleArgumentType.doubleArg(), Double.class),
+            new Option<>("flap_landing_degrees", Config.FLAP_LANDING_DEGREES, DoubleArgumentType.doubleArg(), Double.class),
+            new Option<>("flap_slew_degrees", Config.FLAP_SLEW_DEGREES, DoubleArgumentType.doubleArg(), Double.class),
+            new Option<>("flap_takeoff_max_speed", Config.FLAP_TAKEOFF_MAX_SPEED, DoubleArgumentType.doubleArg(), Double.class),
+            new Option<>("flap_landing_max_speed", Config.FLAP_LANDING_MAX_SPEED, DoubleArgumentType.doubleArg(), Double.class),
             new Option<>("lookahead_seconds", Config.LOOKAHEAD_SECONDS, DoubleArgumentType.doubleArg(), Double.class));
 
     private ConfigCommands() {
@@ -66,6 +84,8 @@ public final class ConfigCommands {
         for (Option<?> option : OPTIONS) {
             root.then(optionNode(option));
         }
+        root.then(SeedgenCommands.node());
+        root.then(NozzleCommands.node());
         LiteralCommandNode<CommandSourceStack> node = event.getDispatcher().register(root);
         event.getDispatcher().register(Commands.literal("aero")
                 .requires(ConfigCommands::mayUse)
@@ -76,10 +96,12 @@ public final class ConfigCommands {
     private static <T> LiteralArgumentBuilder<CommandSourceStack> optionNode(Option<T> option) {
         return Commands.literal(option.name())
                 .executes(context -> {
-                    context.getSource().sendSuccess(() -> Component.literal(option.name() + " = " + option.value().get()), false);
+                    context.getSource().sendSuccess(() -> Component.literal(option.name() + " = " + option.value().get()
+                            + (option.choices().isEmpty() ? "" : " (" + String.join(" or ", option.choices()) + ")")), false);
                     return 1;
                 })
                 .then(Commands.argument("value", option.argument())
+                        .suggests((context, builder) -> SharedSuggestionProvider.suggest(option.choices(), builder))
                         .executes(context -> set(context.getSource(), option, context.getArgument("value", option.type()))));
     }
 
@@ -89,7 +111,8 @@ public final class ConfigCommands {
             ForgeConfigSpec.Range<?> range = spec.getRange();
             source.sendFailure(Component.literal(range != null
                     ? option.name() + " must be between " + range.getMin() + " and " + range.getMax()
-                    : "Invalid value for " + option.name()));
+                    : option.choices().isEmpty() ? "Invalid value for " + option.name()
+                    : option.name() + " must be " + String.join(" or ", option.choices())));
             return 0;
         }
         option.value().set(newValue);

src/main/java/dev/lumareth/improvedAerodynamics/ImprovedAerodynamics.java

@@ -1,7 +1,8 @@
 package dev.lumareth.improvedAerodynamics;
 
 import com.mojang.logging.LogUtils;
-import dev.lumareth.improvedAerodynamics.client.pipper.PipperConfig;
+import dev.lumareth.improvedAerodynamics.exhaust.ExhaustSync;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleContent;
 import dev.lumareth.improvedAerodynamics.flight.PhysicsBridge;
 import dev.lumareth.improvedAerodynamics.network.Network;
 import dev.lumareth.improvedAerodynamics.terrain.LookaheadLoader;
@@ -9,6 +10,7 @@ import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.fml.ModLoadingContext;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.config.ModConfig;
+import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
 import org.slf4j.Logger;
 
 @Mod(ImprovedAerodynamics.MOD_ID)
@@ -21,8 +23,11 @@ public class ImprovedAerodynamics {
         MinecraftForge.EVENT_BUS.register(LookaheadLoader.class);
         MinecraftForge.EVENT_BUS.register(PhysicsBridge.class);
         MinecraftForge.EVENT_BUS.register(ConfigCommands.class);
+        MinecraftForge.EVENT_BUS.register(ExhaustSync.class);
+        MinecraftForge.EVENT_BUS.register(dev.lumareth.improvedAerodynamics.flight.FlapInteraction.class);
         ModLoadingContext.get().registerConfig(ModConfig.Type.SERVER, Config.SPEC);
-        ModLoadingContext.get().registerConfig(ModConfig.Type.CLIENT, PipperConfig.SPEC);
+        ModLoadingContext.get().registerConfig(ModConfig.Type.CLIENT, Config.CLIENT_SPEC);
+        NozzleContent.register(FMLJavaModLoadingContext.get().getModEventBus());
         Network.register();
     }
 }

src/main/java/dev/lumareth/improvedAerodynamics/SeedgenCommands.java

@@ -0,0 +1,95 @@
+package dev.lumareth.improvedAerodynamics;
+
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
+import dev.lumareth.improvedAerodynamics.terrain.AirCeiling;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.commands.Commands;
+import net.minecraft.commands.arguments.coordinates.BlockPosArgument;
+import net.minecraft.core.BlockPos;
+import net.minecraft.network.chat.Component;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.level.ChunkPos;
+import net.minecraft.world.level.Level;
+
+import java.util.OptionalInt;
+
+/**
+ * {@code /aero seedgen}: measures where the air starts in one real chunk, for worlds where the air placeholder's
+ * noise based surface estimate does not work (flat worlds and the like).
+ * {@code set <x> <y> <z>} picks the chunk containing that position in the current dimension, {@code start} reads its
+ * blocks and saves the height above which only air remains, {@code clear} forgets it again.
+ * Pick a chunk that is as high as the tallest terrain you want ships to ignore, and has no builds in it.
+ */
+final class SeedgenCommands {
+    private record Selection(ResourceKey<Level> dimension, ChunkPos chunk) {
+    }
+
+    private static Selection selection;
+
+    private SeedgenCommands() {
+    }
+
+    static LiteralArgumentBuilder<CommandSourceStack> node() {
+        return Commands.literal("seedgen")
+                .executes(context -> status(context.getSource()))
+                .then(Commands.literal("set")
+                        .then(Commands.argument("pos", BlockPosArgument.blockPos())
+                                .executes(context -> set(context.getSource(), BlockPosArgument.getBlockPos(context, "pos")))))
+                .then(Commands.literal("start").executes(context -> start(context.getSource())))
+                .then(Commands.literal("clear").executes(context -> clear(context.getSource())));
+    }
+
+    private static int set(CommandSourceStack source, BlockPos pos) {
+        ChunkPos chunk = new ChunkPos(pos);
+        selection = new Selection(source.getLevel().dimension(), chunk);
+        source.sendSuccess(() -> Component.literal("Chunk " + chunk.x + " " + chunk.z + " in "
+                + source.getLevel().dimension().location() + " selected, run /aero seedgen start to analyze it"), true);
+        return 1;
+    }
+
+    private static int start(CommandSourceStack source) {
+        if (selection == null) {
+            source.sendFailure(Component.literal("No chunk selected, use /aero seedgen set <x> <y> <z> first"));
+            return 0;
+        }
+        ServerLevel level = source.getServer().getLevel(selection.dimension());
+        if (level == null) {
+            source.sendFailure(Component.literal("Dimension " + selection.dimension().location() + " is not loaded"));
+            return 0;
+        }
+        ChunkPos chunk = selection.chunk();
+        AirCeiling.Analysis analysis = AirCeiling.analyze(level, chunk);
+        if (!analysis.complete()) {
+            source.sendFailure(Component.literal("Chunk " + chunk.x + " " + chunk.z + " still has blocks at y="
+                    + analysis.highestSolid() + ", the top of what is read (" + AirCeiling.SCAN_MIN_Y + " to "
+                    + AirCeiling.SCAN_MAX_Y + "), so the air may start higher. Pick a different chunk"));
+            return 0;
+        }
+        AirCeiling.get(level).set(level.dimension(), analysis.airHeight());
+        source.sendSuccess(() -> Component.literal("Only air above y=" + analysis.highestSolid() + " in chunk " + chunk.x + " "
+                + chunk.z + ", saved y=" + analysis.airHeight() + " for " + level.dimension().location()
+                + ". The air placeholder hands VS air from there up" + (Config.ENABLE_AIR_PLACEHOLDER.get() ? ""
+                : " (turn it on with /aero air_placeholder true)")), true);
+        return 1;
+    }
+
+    private static int clear(CommandSourceStack source) {
+        ServerLevel level = source.getLevel();
+        boolean removed = AirCeiling.get(level).clear(level.dimension());
+        source.sendSuccess(() -> Component.literal(removed ? "Measured air height of " + level.dimension().location()
+                + " removed, the placeholder estimates it from world generation again"
+                : "No measured air height for " + level.dimension().location()), true);
+        return removed ? 1 : 0;
+    }
+
+    private static int status(CommandSourceStack source) {
+        ServerLevel level = source.getLevel();
+        OptionalInt height = AirCeiling.get(level).ceiling(level.dimension());
+        String selected = selection != null ? "chunk " + selection.chunk().x + " " + selection.chunk().z + " in "
+                + selection.dimension().location() : "none";
+        source.sendSuccess(() -> Component.literal("Selected: " + selected + "\nMeasured air height in "
+                + level.dimension().location() + ": " + (height.isPresent() ? "y=" + height.getAsInt() : "none, estimated from world generation")), false);
+        return 1;
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/client/KeyBindings.java

@@ -2,7 +2,9 @@ package dev.lumareth.improvedAerodynamics.client;
 
 import com.mojang.blaze3d.platform.InputConstants;
 import dev.lumareth.improvedAerodynamics.ImprovedAerodynamics;
+import dev.lumareth.improvedAerodynamics.network.FlapPacket;
 import dev.lumareth.improvedAerodynamics.network.Network;
+import dev.lumareth.improvedAerodynamics.network.ToggleAfterburnerPacket;
 import dev.lumareth.improvedAerodynamics.network.ToggleAutoTrimPacket;
 import net.minecraft.client.KeyMapping;
 import net.minecraft.client.Minecraft;
@@ -18,6 +20,15 @@ public final class KeyBindings {
     public static final KeyMapping TOGGLE_AUTO_TRIM = new KeyMapping("key.improved_aerodynamics.toggle_auto_trim",
             KeyConflictContext.IN_GAME, InputConstants.Type.KEYSYM, GLFW.GLFW_KEY_J, "key.categories.improved_aerodynamics");
 
+    public static final KeyMapping TOGGLE_AFTERBURNER = new KeyMapping("key.improved_aerodynamics.toggle_afterburner",
+            KeyConflictContext.IN_GAME, InputConstants.Type.KEYSYM, GLFW.GLFW_KEY_K, "key.categories.improved_aerodynamics");
+
+    public static final KeyMapping FLAPS_DOWN = new KeyMapping("key.improved_aerodynamics.flaps_down",
+            KeyConflictContext.IN_GAME, InputConstants.Type.KEYSYM, GLFW.GLFW_KEY_G, "key.categories.improved_aerodynamics");
+
+    public static final KeyMapping FLAPS_UP = new KeyMapping("key.improved_aerodynamics.flaps_up",
+            KeyConflictContext.IN_GAME, InputConstants.Type.KEYSYM, GLFW.GLFW_KEY_H, "key.categories.improved_aerodynamics");
+
     private KeyBindings() {
     }
 
@@ -29,6 +40,9 @@ public final class KeyBindings {
         @SubscribeEvent
         public static void onRegisterKeyMappings(RegisterKeyMappingsEvent event) {
             event.register(TOGGLE_AUTO_TRIM);
+            event.register(TOGGLE_AFTERBURNER);
+            event.register(FLAPS_DOWN);
+            event.register(FLAPS_UP);
         }
     }
 
@@ -50,6 +64,25 @@ public final class KeyBindings {
                     Network.CHANNEL.sendToServer(new ToggleAutoTrimPacket());
                 }
             }
+            while (TOGGLE_AFTERBURNER.consumeClick()) {
+                if (minecraft.player != null && minecraft.player.getVehicle() != null && minecraft.getConnection() != null
+                        && Network.CHANNEL.isRemotePresent(minecraft.getConnection().getConnection())) {
+                    Network.CHANNEL.sendToServer(new ToggleAfterburnerPacket());
+                }
+            }
+            while (FLAPS_DOWN.consumeClick()) {
+                sendFlaps(minecraft, true);
+            }
+            while (FLAPS_UP.consumeClick()) {
+                sendFlaps(minecraft, false);
+            }
+        }
+
+        private static void sendFlaps(Minecraft minecraft, boolean extend) {
+            if (minecraft.player != null && minecraft.player.getVehicle() != null && minecraft.getConnection() != null
+                    && Network.CHANNEL.isRemotePresent(minecraft.getConnection().getConnection())) {
+                Network.CHANNEL.sendToServer(new FlapPacket(extend));
+            }
         }
     }
 }

src/main/java/dev/lumareth/improvedAerodynamics/client/pipper/Ballistics.java

@@ -1,147 +0,0 @@
-package dev.lumareth.improvedAerodynamics.client.pipper;
-
-/**
- * Flight of a Warium shell, which is a vanilla arrow: every tick it moves by its velocity, the velocity is then scaled
- * by the drag and gravity is subtracted. That is linear in the launch velocity, so the position after n ticks is
- * <pre>M + D(n) * v0 - (0, G(n), 0)</pre>
- * with D(n) the sum of the drag factors and G(n) the drop gravity causes on its own. Both are tabulated once, which
- * makes both the impact point and the lead solution cheap enough to run every frame.
- * <p>
- * Plain doubles and no Minecraft classes, so it can be tested on its own. Units are blocks and ticks.
- */
-public final class Ballistics {
-    public static final int MAX_TICKS = 400;
-
-    private final double[] d = new double[MAX_TICKS + 1];
-    private final double[] g = new double[MAX_TICKS + 1];
-
-    public Ballistics(double drag, double gravity) {
-        double y = 0.0;
-        double vy = 0.0;
-        double sum = 0.0;
-        double factor = 1.0;
-        for (int n = 1; n <= MAX_TICKS; n++) {
-            y += vy;
-            vy = vy * drag - gravity;
-            sum += factor;
-            factor *= drag;
-            d[n] = sum;
-            g[n] = -y;
-        }
-    }
-
-    /** Sum of the drag factors after n ticks, n may be fractional. */
-    public double d(double n) {
-        return interpolate(d, n);
-    }
-
-    /** Drop in blocks after n ticks, n may be fractional. */
-    public double g(double n) {
-        return interpolate(g, n);
-    }
-
-    private static double interpolate(double[] table, double n) {
-        if (n <= 0.0) {
-            return 0.0;
-        }
-        if (n >= MAX_TICKS) {
-            return table[MAX_TICKS];
-        }
-        int i = (int) n;
-        double f = n - i;
-        return table[i] + (table[i + 1] - table[i]) * f;
-    }
-
-    /** Height of the terrain a shell would hit at a column. */
-    public interface Ground {
-        double heightAt(double x, double z);
-    }
-
-    /**
-     * Where a shell fired from the muzzle with the given world velocity (blocks per tick, already including the
-     * speed of the shooter if shells inherit it) comes down. Returns the impact point as {x, y, z} or null if it
-     * stays in the air for the whole table.
-     */
-    public double[] impact(double mx, double my, double mz, double vx, double vy, double vz, Ground ground) {
-        double px = mx;
-        double py = my;
-        double pz = mz;
-        for (int n = 1; n <= MAX_TICKS; n++) {
-            double nx = mx + d[n] * vx;
-            double ny = my + d[n] * vy - g[n];
-            double nz = mz + d[n] * vz;
-            double floor = ground.heightAt(nx, nz);
-            if (ny <= floor) {
-                // Linear crossing inside this step
-                double before = py - ground.heightAt(px, pz);
-                double after = ny - floor;
-                double f = before - after > 1.0E-9 ? Math.min(1.0, Math.max(0.0, before / (before - after))) : 1.0;
-                return new double[] {px + (nx - px) * f, py + (ny - py) * f, pz + (nz - pz) * f};
-            }
-            px = nx;
-            py = ny;
-            pz = nz;
-        }
-        return null;
-    }
-
-    /** Result of {@link #lead}: aim direction, time of flight in ticks and the range to the target's current position. */
-    public record Lead(double dirX, double dirY, double dirZ, double ticks, double range) {
-    }
-
-    /**
-     * Aim direction that makes a shell meet a moving target.
-     *
-     * @param speed  muzzle speed in blocks per tick
-     * @param t*     target position now
-     * @param tv*    target velocity in blocks per tick
-     * @param sv*    velocity the shell inherits from the shooter in blocks per tick, zero if it does not
-     * @return the solution or null if the shell cannot reach the target within the table
-     */
-    public Lead lead(double mx, double my, double mz, double speed, double tx, double ty, double tz,
-                     double tvx, double tvy, double tvz, double svx, double svy, double svz) {
-        double range = Math.sqrt(sq(tx - mx) + sq(ty - my) + sq(tz - mz));
-        double previousN = 0.0;
-        for (int n = 1; n <= MAX_TICKS; n++) {
-            double f = miss(n, mx, my, mz, speed, tx, ty, tz, tvx, tvy, tvz, svx, svy, svz);
-            if (f <= 0.0) {
-                double lo = previousN;
-                double hi = n;
-                for (int i = 0; i < 30; i++) {
-                    double mid = 0.5 * (lo + hi);
-                    if (miss(mid, mx, my, mz, speed, tx, ty, tz, tvx, tvy, tvz, svx, svy, svz) > 0.0) {
-                        lo = mid;
-                    } else {
-                        hi = mid;
-                    }
-                }
-                double t = 0.5 * (lo + hi);
-                double dn = d(t);
-                double rx = tx + tvx * t - mx - dn * svx;
-                double ry = ty + tvy * t - my - dn * svy + g(t);
-                double rz = tz + tvz * t - mz - dn * svz;
-                double length = Math.sqrt(rx * rx + ry * ry + rz * rz);
-                if (length < 1.0E-6) {
-                    return null;
-                }
-                return new Lead(rx / length, ry / length, rz / length, t, range);
-            }
-            previousN = n;
-        }
-        return null;
-    }
-
-    /** Distance the shell can still cover short of where the target will be, positive means it has not got there yet. */
-    private double miss(double n, double mx, double my, double mz, double speed, double tx, double ty, double tz,
-                        double tvx, double tvy, double tvz, double svx, double svy, double svz) {
-        double dn = d(n);
-        double rx = tx + tvx * n - mx - dn * svx;
-        double ry = ty + tvy * n - my - dn * svy + g(n);
-        double rz = tz + tvz * n - mz - dn * svz;
-        return Math.sqrt(rx * rx + ry * ry + rz * rz) - speed * dn;
-    }
-
-    private static double sq(double v) {
-        return v * v;
-    }
-}

src/main/java/dev/lumareth/improvedAerodynamics/client/pipper/GunFinder.java

@@ -1,155 +0,0 @@
-package dev.lumareth.improvedAerodynamics.client.pipper;
-
-import net.minecraft.client.multiplayer.ClientLevel;
-import net.minecraft.core.BlockPos;
-import net.minecraft.core.Direction;
-import net.minecraft.core.registries.Registries;
-import net.minecraft.resources.ResourceLocation;
-import net.minecraft.tags.TagKey;
-import net.minecraft.world.level.block.Block;
-import net.minecraft.world.level.block.entity.BlockEntity;
-import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.block.state.properties.DirectionProperty;
-import net.minecraft.world.level.block.state.properties.Property;
-import net.minecraft.world.level.chunk.ChunkAccess;
-import net.minecraft.world.level.chunk.ChunkStatus;
-import net.minecraft.world.level.chunk.LevelChunkSection;
-import net.minecraftforge.fml.ModList;
-import net.minecraftforge.registries.ForgeRegistries;
-import org.joml.primitives.AABBic;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Finds the light autocannon of a ship and works out what it will shoot, the same way Warium's LACFireScript does:
- * barrel count, muzzle, aim direction and muzzle speed.
- */
-final class GunFinder {
-    private static final ResourceLocation LIGHT_AUTOCANNON = new ResourceLocation("crusty_chunks", "light_autocannon");
-    private static final TagKey<Block> BARREL = TagKey.create(Registries.BLOCK, new ResourceLocation("crusty_chunks", "acbarrel"));
-    private static final TagKey<Block> PASSTHROUGH = TagKey.create(Registries.BLOCK, new ResourceLocation("crusty_chunks", "barrelpassthrough"));
-    private static final int RESCAN_TICKS = 100;
-    private static final int MAX_GUNS = 16;
-
-    /** Muzzle and direction in ship space and the speed of the shell in blocks per tick. */
-    record Shot(double mx, double my, double mz, double dx, double dy, double dz, double speed) {
-    }
-
-    private long shipId = Long.MIN_VALUE;
-    private long lastScan = Long.MIN_VALUE;
-    private final List<BlockPos> guns = new ArrayList<>();
-
-    /** The gun closest to the seat, or null if the ship has none loaded. */
-    Shot find(ClientLevel level, long shipId, AABBic aabb, BlockPos seat) {
-        if (shipId != this.shipId || level.getGameTime() - lastScan >= RESCAN_TICKS || level.getGameTime() < lastScan) {
-            this.shipId = shipId;
-            lastScan = level.getGameTime();
-            scan(level, aabb);
-        }
-        BlockPos best = null;
-        double bestDistance = Double.MAX_VALUE;
-        for (BlockPos pos : guns) {
-            double distance = pos.distSqr(seat);
-            if (distance < bestDistance) {
-                bestDistance = distance;
-                best = pos;
-            }
-        }
-        return best == null ? null : shotOf(level, best);
-    }
-
-    private void scan(ClientLevel level, AABBic aabb) {
-        guns.clear();
-        Block gun = ForgeRegistries.BLOCKS.getValue(LIGHT_AUTOCANNON);
-        if (gun == null || aabb == null) {
-            return;
-        }
-        BlockPos.MutableBlockPos pos = new BlockPos.MutableBlockPos();
-        for (int cx = aabb.minX() >> 4; cx <= aabb.maxX() >> 4; cx++) {
-            for (int cz = aabb.minZ() >> 4; cz <= aabb.maxZ() >> 4; cz++) {
-                ChunkAccess chunk = level.getChunk(cx, cz, ChunkStatus.FULL, false);
-                if (chunk == null) {
-                    continue;
-                }
-                LevelChunkSection[] sections = chunk.getSections();
-                for (int i = 0; i < sections.length; i++) {
-                    LevelChunkSection section = sections[i];
-                    if (section.hasOnlyAir() || !section.maybeHas(state -> state.is(gun))) {
-                        continue;
-                    }
-                    int baseY = level.getSectionYFromSectionIndex(i) << 4;
-                    for (int x = 0; x < 16; x++) {
-                        for (int y = 0; y < 16; y++) {
-                            for (int z = 0; z < 16; z++) {
-                                if (section.getBlockState(x, y, z).is(gun) && guns.size() < MAX_GUNS) {
-                                    guns.add(pos.set((cx << 4) + x, baseY + y, (cz << 4) + z).immutable());
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    private static Shot shotOf(ClientLevel level, BlockPos gun) {
-        BlockState state = level.getBlockState(gun);
-        Property<?> property = state.getBlock().getStateDefinition().getProperty("facing");
-        if (!(property instanceof DirectionProperty facingProperty)) {
-            return null;
-        }
-        Direction facing = state.getValue(facingProperty);
-        int fx = facing.getStepX();
-        int fy = facing.getStepY();
-        int fz = facing.getStepZ();
-
-        // Barrels, counted like Warium does: up to five more behind the first one
-        double barrels = 1.0;
-        for (int i = 0; i < 5 && level.getBlockState(gun.offset(fx * (int) (1 + barrels), fy * (int) (1 + barrels), fz * (int) (1 + barrels))).is(BARREL); i++) {
-            barrels++;
-        }
-        // Muzzle: past the barrels, skipping through blocks the shell passes
-        double position = barrels;
-        for (int i = 0; i < 10; i++) {
-            BlockState at = level.getBlockState(gun.offset(fx * (int) (1 + position), fy * (int) (1 + position), fz * (int) (1 + position)));
-            if ((!at.isAir() && !at.canOcclude()) || at.is(PASSTHROUGH)) {
-                position++;
-            } else {
-                break;
-            }
-        }
-        double mx = gun.getX() + fx * (1.5 + position) + 0.5;
-        double my = gun.getY() + fy * (1.5 + position) + 0.5;
-        double mz = gun.getZ() + fz * (1.5 + position) + 0.5;
-
-        // Aim, from the tags of the gun itself
-        double aimX = 0.0;
-        double aimY = 0.0;
-        double aimZ = 0.0;
-        BlockEntity entity = level.getBlockEntity(gun);
-        double gx = entity == null ? 0.0 : entity.getPersistentData().getDouble("X");
-        double gz = entity == null ? 0.0 : entity.getPersistentData().getDouble("Z");
-        double gpitch = entity == null ? 0.0 : entity.getPersistentData().getDouble("Pitch");
-        if (1.0 > Math.abs(fx - gx) || 1.0 > Math.abs(fz - gz)) {
-            aimY = gpitch;
-            aimX = gx + fx;
-            aimZ = gz + fz;
-        }
-        if (aimX * aimZ == 0.0) {
-            aimX = fx;
-            aimZ = fz;
-        }
-        double length = Math.sqrt(aimX * aimX + aimY * aimY + aimZ * aimZ);
-        if (length < 1.0E-6) {
-            return null;
-        }
-
-        double speed = PipperConfig.MUZZLE_SPEED_OVERRIDE.get();
-        if (speed <= 0.0) {
-            double multiplier = ModList.get().isLoaded("ritchiesprojectilelib") ? 2.0 : 1.0;
-            speed = (5.0 + barrels / 1.5) * multiplier;
-        }
-        return new Shot(mx, my, mz, aimX / length, aimY / length, aimZ / length, speed);
-    }
-}

src/main/java/dev/lumareth/improvedAerodynamics/client/pipper/GunPipperRenderer.java

@@ -1,251 +0,0 @@
-package dev.lumareth.improvedAerodynamics.client.pipper;
-
-import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.BufferBuilder;
-import com.mojang.blaze3d.vertex.BufferUploader;
-import com.mojang.blaze3d.vertex.DefaultVertexFormat;
-import com.mojang.blaze3d.vertex.Tesselator;
-import com.mojang.blaze3d.vertex.VertexFormat;
-import dev.lumareth.improvedAerodynamics.ImprovedAerodynamics;
-import net.minecraft.client.Camera;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.multiplayer.ClientLevel;
-import net.minecraft.client.renderer.GameRenderer;
-import net.minecraft.core.BlockPos;
-import net.minecraft.util.Mth;
-import net.minecraft.world.entity.Entity;
-import net.minecraft.world.level.block.entity.BlockEntity;
-import net.minecraft.world.level.levelgen.Heightmap;
-import net.minecraft.world.phys.Vec3;
-import net.minecraftforge.api.distmarker.Dist;
-import net.minecraftforge.client.event.RenderLevelStageEvent;
-import net.minecraftforge.eventbus.api.SubscribeEvent;
-import net.minecraftforge.fml.ModList;
-import net.minecraftforge.fml.common.Mod;
-import org.joml.Matrix4f;
-import org.joml.Vector3d;
-import org.joml.Vector3f;
-import org.valkyrienskies.core.api.ships.ClientShip;
-import org.valkyrienskies.core.api.ships.Ship;
-import org.valkyrienskies.mod.common.VSGameUtilsKt;
-
-/**
- * Draws two markers for the first light autocannon of the aircraft you sit in:
- * an orange ring where its shells come down on the ground, and, for the radar target selected on the seat, a green
- * ring you put on the target to hit it (the lead pipper): green from the radar, cyan while following the ship itself,
- * yellow while only extrapolating a lost contact. Both come from the same ballistics Warium's shells follow.
- */
-@Mod.EventBusSubscriber(modid = ImprovedAerodynamics.MOD_ID, value = Dist.CLIENT)
-public final class GunPipperRenderer {
-    private static final int IMPACT_COLOR = 0xFFFF9020;
-    private static final int LEAD_COLOR = 0xFF40FF60;
-    private static final int VISUAL_COLOR = 0xFF40E8FF;
-    private static final int COAST_COLOR = 0xFFFFE040;
-    private static final float DISTANCE = 2.0F;
-
-    private static final GunFinder FINDER = new GunFinder();
-    private static final TargetTrack TRACK = new TargetTrack();
-    private static Ballistics ballistics;
-    private static double ballisticsDrag = Double.NaN;
-    private static double ballisticsGravity = Double.NaN;
-
-    private GunPipperRenderer() {
-    }
-
-    @SubscribeEvent
-    public static void onRenderLevel(RenderLevelStageEvent event) {
-        if (event.getStage() != RenderLevelStageEvent.Stage.AFTER_PARTICLES || !PipperConfig.SPEC.isLoaded()
-                || !PipperConfig.ENABLED.get() || !ModList.get().isLoaded("valkyrien_warium")) {
-            return;
-        }
-        Minecraft minecraft = Minecraft.getInstance();
-        ClientLevel level = minecraft.level;
-        if (level == null || minecraft.player == null) {
-            return;
-        }
-        Entity seat = WariumSeat.seatOf(minecraft.player);
-        if (seat == null) {
-            TRACK.reset();
-            return;
-        }
-        BlockPos seatPos = BlockPos.containing(seat.getX(), seat.getY(), seat.getZ());
-        Ship ship = VSGameUtilsKt.getLoadedShipManagingPos(level, seatPos);
-        if (ship == null) {
-            return;
-        }
-
-        GunFinder.Shot shot = FINDER.find(level, ship.getId(), ship.getShipAABB(), seatPos);
-        if (shot == null) {
-            return;
-        }
-        org.joml.Matrix4dc shipToWorld = ship instanceof ClientShip clientShip
-                ? clientShip.getRenderTransform().getShipToWorld() : ship.getShipToWorld();
-        Vector3d muzzle = shipToWorld.transformPosition(new Vector3d(shot.mx(), shot.my(), shot.mz()));
-        Vector3d direction = shipToWorld.transformDirection(new Vector3d(shot.dx(), shot.dy(), shot.dz())).normalize();
-
-        double inherit = PipperConfig.INHERIT_SHIP_VELOCITY.get() ? 1.0 / 20.0 : 0.0;
-        org.joml.Vector3dc velocity = ship.getVelocity();
-        double svx = velocity.x() * inherit;
-        double svy = velocity.y() * inherit;
-        double svz = velocity.z() * inherit;
-
-        Ballistics table = table();
-        Camera camera = event.getCamera();
-        Matrix4f matrix = event.getPoseStack().last().pose();
-
-        BufferBuilder builder = Tesselator.getInstance().getBuilder();
-        RenderSystem.disableDepthTest();
-        RenderSystem.enableBlend();
-        RenderSystem.defaultBlendFunc();
-        RenderSystem.disableCull();
-        RenderSystem.setShader(GameRenderer::getPositionColorShader);
-        builder.begin(VertexFormat.Mode.QUADS, DefaultVertexFormat.POSITION_COLOR);
-        boolean drawn = false;
-
-        if (PipperConfig.SHOW_IMPACT.get()) {
-            double[] impact = table.impact(muzzle.x, muzzle.y, muzzle.z,
-                    direction.x * shot.speed() + svx, direction.y * shot.speed() + svy, direction.z * shot.speed() + svz,
-                    (x, z) -> level.getHeight(Heightmap.Types.MOTION_BLOCKING, Mth.floor(x), Mth.floor(z)));
-            if (impact != null) {
-                drawn |= marker(builder, matrix, camera, impact[0], impact[1], impact[2], IMPACT_COLOR, false);
-            }
-        }
-
-        if (PipperConfig.SHOW_LEAD.get()) {
-            drawn |= lead(builder, matrix, camera, level, seat, seatPos, ship.getId(), table, muzzle, shot.speed(), svx, svy, svz);
-        } else {
-            TRACK.reset();
-        }
-
-        if (drawn) {
-            BufferUploader.drawWithShader(builder.end());
-        } else {
-            builder.end().release();
-        }
-        RenderSystem.enableCull();
-        RenderSystem.enableDepthTest();
-        RenderSystem.disableBlend();
-    }
-
-    private static boolean lead(BufferBuilder builder, Matrix4f matrix, Camera camera, ClientLevel level, Entity seat, BlockPos seatPos,
-                                long ownShipId, Ballistics table, Vector3d muzzle, double speed, double svx, double svy, double svz) {
-        int selected = WariumSeat.selectedTarget(seat);
-        double[] radar = selected > 0 ? radarPosition(level, seatPos, selected) : null;
-        TargetTrack.Fix fix = TRACK.resolve(level, ownShipId, selected, radar, level.getGameTime(),
-                PipperConfig.VISUAL_TRACK.get(), PipperConfig.COAST_SECONDS.get());
-        if (fix == null) {
-            return false;
-        }
-        Ballistics.Lead lead = table.lead(muzzle.x, muzzle.y, muzzle.z, speed, fix.x(), fix.y(), fix.z(),
-                fix.vx(), fix.vy(), fix.vz(), svx, svy, svz);
-        if (lead == null) {
-            return false;
-        }
-        int color = switch (fix.source()) {
-            case RADAR -> LEAD_COLOR;
-            case VISUAL -> VISUAL_COLOR;
-            case COAST -> COAST_COLOR;
-        };
-        return marker(builder, matrix, camera,
-                muzzle.x + lead.dirX() * lead.range(), muzzle.y + lead.dirY() * lead.range(), muzzle.z + lead.dirZ() * lead.range(),
-                color, true);
-    }
-
-    /** Position the node reports for a target index, or null if it reports none. */
-    private static double[] radarPosition(ClientLevel level, BlockPos seatPos, int selected) {
-        BlockEntity seatEntity = level.getBlockEntity(seatPos);
-        if (seatEntity == null) {
-            return null;
-        }
-        var seatData = seatEntity.getPersistentData();
-        BlockEntity node = level.getBlockEntity(BlockPos.containing(seatData.getDouble("ControlX"), seatData.getDouble("ControlY"), seatData.getDouble("ControlZ")));
-        if (node == null) {
-            return null;
-        }
-        var data = node.getPersistentData();
-        // Warium builds these keys from a double, so they read TargetX1.0, TargetY1.0 and so on
-        double tx = data.getDouble("TargetX" + (double) selected);
-        double ty = data.getDouble("TargetY" + (double) selected);
-        double tz = data.getDouble("TargetZ" + (double) selected);
-        if (tx == 0.0 && ty == 0.0 && tz == 0.0) {
-            return null;
-        }
-        return new double[] {tx, ty, tz};
-    }
-
-    private static Ballistics table() {
-        double drag = PipperConfig.DRAG.get();
-        double gravity = PipperConfig.GRAVITY.get();
-        if (ballistics == null || drag != ballisticsDrag || gravity != ballisticsGravity) {
-            ballistics = new Ballistics(drag, gravity);
-            ballisticsDrag = drag;
-            ballisticsGravity = gravity;
-        }
-        return ballistics;
-    }
-
-    /** A ring on the screen in the direction of a world point, with ticks on it for the lead pipper. */
-    private static boolean marker(BufferBuilder builder, Matrix4f matrix, Camera camera, double x, double y, double z, int color, boolean ticks) {
-        Vec3 cameraPosition = camera.getPosition();
-        Vector3f toPoint = new Vector3f((float) (x - cameraPosition.x), (float) (y - cameraPosition.y), (float) (z - cameraPosition.z));
-        if (toPoint.lengthSquared() < 1.0E-6F) {
-            return false;
-        }
-        toPoint.normalize();
-        if (toPoint.dot(camera.getLookVector()) <= 0.05F) {
-            return false;
-        }
-        Vector3f center = new Vector3f(toPoint).mul(DISTANCE);
-        Vector3f left = new Vector3f(camera.getLeftVector());
-        Vector3f up = new Vector3f(camera.getUpVector());
-        float radius = (float) (PipperConfig.MARKER_SIZE.get() * DISTANCE);
-        float thickness = radius * 0.12F;
-
-        ring(builder, matrix, center, left, up, radius, thickness, color);
-        quad(builder, matrix, center, left, up, thickness * 1.6F, thickness * 1.6F, color);
-        if (ticks) {
-            for (int i = 0; i < 4; i++) {
-                double angle = i * Math.PI / 2.0;
-                float cx = (float) Math.cos(angle);
-                float cy = (float) Math.sin(angle);
-                Vector3f tickCenter = new Vector3f(center)
-                        .fma(cx * radius * 1.45F, left).fma(cy * radius * 1.45F, up);
-                float halfX = Math.abs(cx) > 0.5F ? radius * 0.35F : thickness;
-                float halfY = Math.abs(cy) > 0.5F ? radius * 0.35F : thickness;
-                quad(builder, matrix, tickCenter, left, up, halfX, halfY, color);
-            }
-        }
-        return true;
-    }
-
-    private static void ring(BufferBuilder builder, Matrix4f matrix, Vector3f center, Vector3f left, Vector3f up, float radius, float thickness, int color) {
-        final int segments = 32;
-        float inner = radius - thickness;
-        float outer = radius + thickness;
-        for (int i = 0; i < segments; i++) {
-            double a0 = i * 2.0 * Math.PI / segments;
-            double a1 = (i + 1) * 2.0 * Math.PI / segments;
-            vertex(builder, matrix, center, left, up, (float) Math.cos(a0) * inner, (float) Math.sin(a0) * inner, color);
-            vertex(builder, matrix, center, left, up, (float) Math.cos(a0) * outer, (float) Math.sin(a0) * outer, color);
-            vertex(builder, matrix, center, left, up, (float) Math.cos(a1) * outer, (float) Math.sin(a1) * outer, color);
-            vertex(builder, matrix, center, left, up, (float) Math.cos(a1) * inner, (float) Math.sin(a1) * inner, color);
-        }
-    }
-
-    private static void quad(BufferBuilder builder, Matrix4f matrix, Vector3f center, Vector3f left, Vector3f up, float halfX, float halfY, int color) {
-        vertex(builder, matrix, center, left, up, -halfX, -halfY, color);
-        vertex(builder, matrix, center, left, up, halfX, -halfY, color);
-        vertex(builder, matrix, center, left, up, halfX, halfY, color);
-        vertex(builder, matrix, center, left, up, -halfX, halfY, color);
-    }
-
-    private static void vertex(BufferBuilder builder, Matrix4f matrix, Vector3f center, Vector3f left, Vector3f up, float a, float b, int color) {
-        // The left vector points to the left of the screen, so a positive offset along it is drawn to the left
-        float vx = center.x - left.x * a + up.x * b;
-        float vy = center.y - left.y * a + up.y * b;
-        float vz = center.z - left.z * a + up.z * b;
-        builder.vertex(matrix, vx, vy, vz)
-                .color(color >> 16 & 255, color >> 8 & 255, color & 255, color >>> 24)
-                .endVertex();
-    }
-}

src/main/java/dev/lumareth/improvedAerodynamics/client/pipper/PipperConfig.java

@@ -1,53 +0,0 @@
-package dev.lumareth.improvedAerodynamics.client.pipper;
-
-import net.minecraftforge.common.ForgeConfigSpec;
-
-/** Client side settings of the gun pipper. Lives in improved_aerodynamics-client.toml. */
-public final class PipperConfig {
-    public static final ForgeConfigSpec SPEC;
-
-    public static final ForgeConfigSpec.BooleanValue ENABLED;
-    public static final ForgeConfigSpec.BooleanValue SHOW_IMPACT;
-    public static final ForgeConfigSpec.BooleanValue SHOW_LEAD;
-    public static final ForgeConfigSpec.BooleanValue INHERIT_SHIP_VELOCITY;
-    public static final ForgeConfigSpec.BooleanValue VISUAL_TRACK;
-    public static final ForgeConfigSpec.DoubleValue COAST_SECONDS;
-    public static final ForgeConfigSpec.DoubleValue MUZZLE_SPEED_OVERRIDE;
-    public static final ForgeConfigSpec.DoubleValue GRAVITY;
-    public static final ForgeConfigSpec.DoubleValue DRAG;
-    public static final ForgeConfigSpec.DoubleValue MARKER_SIZE;
-
-    static {
-        ForgeConfigSpec.Builder builder = new ForgeConfigSpec.Builder();
-        builder.comment("Gun pipper for Warium light autocannons, drawn while seated in a Warium seat").push("pipper");
-        ENABLED = builder.comment("Master switch")
-                .define("enabled", true);
-        SHOW_IMPACT = builder.comment("Show where the shells of the gun come down on the ground (orange ring)")
-                .define("showImpact", true);
-        SHOW_LEAD = builder.comment("Show the lead pipper for the radar target you selected (green ring)")
-                .define("showLead", true);
-        VISUAL_TRACK = builder.comment("Follow the selected target's ship itself once the radar has shown it, so the lead pipper keeps working when",
-                        "the radar loses it (notching, speed gate, ground clutter). Only while the ship is loaded, which is within render distance",
-                        "(cyan ring)")
-                .define("visualTrack", true);
-        COAST_SECONDS = builder.comment("Seconds a lost radar contact is extrapolated from its last position and velocity when its ship is not loaded",
-                        "(yellow ring), 0 turns it off")
-                .defineInRange("coastSeconds", 8.0, 0.0, 60.0);
-        INHERIT_SHIP_VELOCITY = builder.comment("Add the speed of your aircraft to the shells. Warium does not do this itself, only turn it",
-                        "on if a test shows your shells keep the speed of the jet (fire level at full speed, then hovering)")
-                .define("inheritShipVelocity", false);
-        MUZZLE_SPEED_OVERRIDE = builder.comment("Muzzle speed in blocks per tick, 0 works it out from the barrel length like Warium does")
-                .defineInRange("muzzleSpeedOverride", 0.0, 0.0, 100.0);
-        GRAVITY = builder.comment("Gravity of the shells in blocks per tick squared")
-                .defineInRange("gravity", 0.05, 0.0, 1.0);
-        DRAG = builder.comment("Speed the shells keep each tick, 0.99 is a vanilla arrow")
-                .defineInRange("drag", 0.99, 0.5, 1.0);
-        MARKER_SIZE = builder.comment("Radius of the markers on screen")
-                .defineInRange("markerSize", 0.03, 0.005, 0.2);
-        builder.pop();
-        SPEC = builder.build();
-    }
-
-    private PipperConfig() {
-    }
-}

src/main/java/dev/lumareth/improvedAerodynamics/client/pipper/TargetTrack.java

@@ -1,131 +0,0 @@
-package dev.lumareth.improvedAerodynamics.client.pipper;
-
-import net.minecraft.client.multiplayer.ClientLevel;
-import org.joml.Vector3d;
-import org.joml.primitives.AABBdc;
-import org.valkyrienskies.core.api.ships.ClientShip;
-import org.valkyrienskies.mod.common.VSGameUtilsKt;
-
-/**
- * The target the lead pipper aims at. The radar is only the way in: its contact is matched to the closest loaded ship
- * and from then on that ship is followed directly, with its true position and velocity, so the pipper survives the
- * radar losing the contact (notching, the speed gate, ground clutter). Without a loaded ship, which happens beyond
- * render distance, the last radar position is extrapolated for a limited time.
- * <p>
- * The selected index is no help for this: the radar rebuilds its list, so after a loss the index can point at another
- * contact or at an empty slot.
- */
-final class TargetTrack {
-    /** A radar position this close to a ship is taken to be that ship. */
-    private static final double SNAP_BLOCKS = 80.0;
-    /** A fresh radar position this far from the followed ship means the player moved on to another target. */
-    private static final double REBIND_BLOCKS = 250.0;
-    private static final long NONE = Long.MIN_VALUE;
-
-    enum Source {
-        RADAR, VISUAL, COAST
-    }
-
-    /** Position in blocks, velocity in blocks per tick. */
-    record Fix(double x, double y, double z, double vx, double vy, double vz, Source source) {
-    }
-
-    private final TargetTracker radar = new TargetTracker();
-    private int index = -1;
-    private long boundId = NONE;
-
-    void reset() {
-        radar.reset();
-        index = -1;
-        boundId = NONE;
-    }
-
-    /**
-     * @param radarPosition the position the node reports for the selected index, or null if it reports none
-     */
-    Fix resolve(ClientLevel level, long ownShipId, int selected, double[] radarPosition, long tick,
-                boolean visualTrack, double coastSeconds) {
-        if (selected <= 0) {
-            reset();
-            return null;
-        }
-        if (selected != index) {
-            reset();
-            index = selected;
-        }
-        if (radarPosition != null) {
-            radar.update(selected, radarPosition[0], radarPosition[1], radarPosition[2], tick);
-        }
-
-        if (visualTrack) {
-            ClientShip bound = boundId == NONE ? null : shipById(level, boundId);
-            if (radarPosition != null && radar.age(tick) <= 1) {
-                // Fresh contact: pick the ship it belongs to, or let go of the old one if the player switched
-                if (bound == null || distance(center(bound), radarPosition) > REBIND_BLOCKS) {
-                    bound = nearest(level, ownShipId, radarPosition);
-                    boundId = bound == null ? NONE : bound.getId();
-                }
-            }
-            if (bound != null) {
-                Vector3d center = center(bound);
-                var velocity = bound.getVelocity();
-                return new Fix(center.x, center.y, center.z, velocity.x() / 20.0, velocity.y() / 20.0, velocity.z() / 20.0, Source.VISUAL);
-            }
-            boundId = NONE;
-        }
-
-        if (!radar.hasPosition()) {
-            return null;
-        }
-        long age = radar.age(tick);
-        if (age > TargetTracker.STALE_TICKS) {
-            if (coastSeconds <= 0.0 || !radar.hasVelocity() || age > coastSeconds * 20.0) {
-                return null;
-            }
-            double[] p = radar.predicted(tick);
-            return new Fix(p[0], p[1], p[2], radar.vx(), radar.vy(), radar.vz(), Source.COAST);
-        }
-        double[] p = radar.predicted(tick);
-        // A contact is only extrapolated up to the age of its last update
-        return new Fix(p[0], p[1], p[2], radar.vx(), radar.vy(), radar.vz(), Source.RADAR);
-    }
-
-    private static ClientShip shipById(ClientLevel level, long id) {
-        for (ClientShip ship : VSGameUtilsKt.getShipObjectWorld(level).getLoadedShips()) {
-            if (ship.getId() == id) {
-                return ship;
-            }
-        }
-        return null;
-    }
-
-    private static ClientShip nearest(ClientLevel level, long ownShipId, double[] position) {
-        ClientShip best = null;
-        double bestDistance = SNAP_BLOCKS;
-        for (ClientShip ship : VSGameUtilsKt.getShipObjectWorld(level).getLoadedShips()) {
-            if (ship.getId() == ownShipId) {
-                continue;
-            }
-            double distance = distance(center(ship), position);
-            if (distance < bestDistance) {
-                bestDistance = distance;
-                best = ship;
-            }
-        }
-        return best;
-    }
-
-    /** The same point Warium's radar reports: the center of the world bounding box. */
-    private static Vector3d center(ClientShip ship) {
-        AABBdc box = ship.getWorldAABB();
-        return box.center(new Vector3d());
-    }
-
-    private static double distance(Vector3d a, double[] b) {
-        return Math.sqrt(sq(a.x - b[0]) + sq(a.y - b[1]) + sq(a.z - b[2]));
-    }
-
-    private static double sq(double v) {
-        return v * v;
-    }
-}

src/main/java/dev/lumareth/improvedAerodynamics/client/pipper/TargetTracker.java

@@ -1,113 +0,0 @@
-package dev.lumareth.improvedAerodynamics.client.pipper;
-
-/**
- * Target velocity from the radar. The node only stores positions, and they change when the radar updates, which is
- * not every tick. So the velocity is the change between two distinct positions divided by the ticks between them,
- * smoothed. When the radar stops updating the last velocity is kept so the track can be extrapolated.
- */
-final class TargetTracker {
-    /** Ticks without a new position after which the contact counts as lost and is only extrapolated. */
-    static final long STALE_TICKS = 40;
-    private static final double SMOOTHING = 0.5;
-    private static final double JUMP_BLOCKS_PER_TICK = 15.0;
-
-    private int index = -1;
-    private double px;
-    private double py;
-    private double pz;
-    private long sampleTick;
-    private double vx;
-    private double vy;
-    private double vz;
-    private boolean hasVelocity;
-
-    void update(int selected, double x, double y, double z, long tick) {
-        if (selected != index || tick < sampleTick) {
-            index = selected;
-            px = x;
-            py = y;
-            pz = z;
-            sampleTick = tick;
-            hasVelocity = false;
-            vx = 0.0;
-            vy = 0.0;
-            vz = 0.0;
-            return;
-        }
-        if (x != px || y != py || z != pz) {
-            long dt = Math.max(1L, tick - sampleTick);
-            double nx = (x - px) / dt;
-            double ny = (y - py) / dt;
-            double nz = (z - pz) / dt;
-            if (Math.sqrt(nx * nx + ny * ny + nz * nz) > JUMP_BLOCKS_PER_TICK) {
-                // Teleport or a different contact reusing the slot
-                hasVelocity = false;
-            } else if (hasVelocity) {
-                vx += (nx - vx) * SMOOTHING;
-                vy += (ny - vy) * SMOOTHING;
-                vz += (nz - vz) * SMOOTHING;
-            } else {
-                vx = nx;
-                vy = ny;
-                vz = nz;
-                hasVelocity = true;
-            }
-            px = x;
-            py = y;
-            pz = z;
-            sampleTick = tick;
-        }
-    }
-
-    void reset() {
-        index = -1;
-        hasVelocity = false;
-        vx = 0.0;
-        vy = 0.0;
-        vz = 0.0;
-    }
-
-    boolean hasPosition() {
-        return index >= 0;
-    }
-
-    /** Ticks since the radar last gave a new position. */
-    long age(long tick) {
-        return tick - sampleTick;
-    }
-
-    /** The last radar position moved on by the velocity over the time since. */
-    double[] predicted(long tick) {
-        long dt = Math.max(0L, tick - sampleTick);
-        return new double[] {px + vx * dt, py + vy * dt, pz + vz * dt};
-    }
-
-    double lastX() {
-        return px;
-    }
-
-    double lastY() {
-        return py;
-    }
-
-    double lastZ() {
-        return pz;
-    }
-
-    /** Velocity in blocks per tick, zero when unknown. */
-    double vx() {
-        return vx;
-    }
-
-    double vy() {
-        return vy;
-    }
-
-    double vz() {
-        return vz;
-    }
-
-    boolean hasVelocity() {
-        return hasVelocity;
-    }
-}

src/main/java/dev/lumareth/improvedAerodynamics/client/pipper/WariumSeat.java

@@ -1,20 +0,0 @@
-package dev.lumareth.improvedAerodynamics.client.pipper;
-
-import net.mcreator.valkyrienwarium.entity.SeatEntityEntity;
-import net.minecraft.world.entity.Entity;
-
-/** Everything that touches Warium VS classes, so nothing else loads them when Warium is missing. */
-final class WariumSeat {
-    private WariumSeat() {
-    }
-
-    static Entity seatOf(Entity rider) {
-        Entity root = rider.getRootVehicle();
-        return root instanceof SeatEntityEntity ? root : null;
-    }
-
-    /** Index of the radar target selected on the seat, 1 based, 0 for none. */
-    static int selectedTarget(Entity seat) {
-        return seat.getEntityData().get(SeatEntityEntity.DATA_SelectedTarget);
-    }
-}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/AfterburnerToggle.java

@@ -0,0 +1,48 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import dev.lumareth.improvedAerodynamics.Config;
+import dev.lumareth.improvedAerodynamics.flight.AutoTrimToggle;
+import net.mcreator.valkyrienwarium.entity.SeatEntityEntity;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.level.block.entity.BlockEntity;
+
+/**
+ * Server side of the afterburner key. The switch lives in the control node, like auto trim, so it stays with the
+ * craft and every nozzle linked to the node follows it. It only lights with enough throttle and goes out for good
+ * once the throttle falls below that, see {@link NozzleBlockEntity}.
+ */
+public final class AfterburnerToggle {
+    /** Tag on the control node that holds the switch. */
+    public static final String TAG = "improved_aerodynamics_afterburner";
+
+    private AfterburnerToggle() {
+    }
+
+    public static void toggle(ServerPlayer player) {
+        Entity vehicle = player.getVehicle();
+        if (!(vehicle instanceof SeatEntityEntity)) {
+            player.displayClientMessage(Component.translatable("message.improved_aerodynamics.afterburner.no_seat"), true);
+            return;
+        }
+        BlockEntity node = AutoTrimToggle.findNode(vehicle.level(), vehicle.blockPosition());
+        if (node == null) {
+            player.displayClientMessage(Component.translatable("message.improved_aerodynamics.afterburner.no_node"), true);
+            return;
+        }
+
+        CompoundTag tag = node.getPersistentData();
+        double minimum = Config.AFTERBURNER_MIN_THROTTLE.get();
+        if (!tag.getBoolean(TAG) && tag.getDouble("Throttle") < minimum) {
+            player.displayClientMessage(Component.translatable("message.improved_aerodynamics.afterburner.throttle", (int) Math.ceil(minimum)), true);
+            return;
+        }
+        boolean enabled = !tag.getBoolean(TAG);
+        tag.putBoolean(TAG, enabled);
+        node.setChanged();
+        player.displayClientMessage(Component.translatable(enabled
+                ? "message.improved_aerodynamics.afterburner.on" : "message.improved_aerodynamics.afterburner.off"), true);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/ExhaustSync.java

@@ -0,0 +1,77 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import dev.lumareth.improvedAerodynamics.ImprovedAerodynamics;
+import dev.lumareth.improvedAerodynamics.network.ExhaustPacket;
+import dev.lumareth.improvedAerodynamics.network.Network;
+import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
+import net.minecraft.core.BlockPos;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.phys.Vec3;
+import net.minecraftforge.event.server.ServerStoppedEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.network.PacketDistributor;
+import org.joml.Vector3d;
+import org.valkyrienskies.mod.common.VSGameUtilsKt;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Tells the players near a burning jet exhaust about it, for the improved exhaust style. A packet goes out when the
+ * exhaust changes and otherwise every few ticks, which keeps the flame alive on the clients, see {@code ExhaustFlames}.
+ */
+public final class ExhaustSync {
+    private static final int RESEND_TICKS = 4;
+    private static final double RANGE = 256.0;
+    private static boolean announced;
+
+    private record Sent(long tick, Vec3 direction, int intensity, boolean afterburner) {
+    }
+
+    private static final Map<ResourceKey<Level>, Long2ObjectOpenHashMap<Sent>> SENT = new HashMap<>();
+
+    private ExhaustSync() {
+    }
+
+    /**
+     * @param key       the block the exhaust belongs to, one flame per key
+     * @param exit      where the flame starts, in the block's coordinates
+     * @param direction unit vector the exhaust moves along
+     * @param intensity 0 to 1
+     */
+    public static void emit(ServerLevel level, BlockPos key, Vec3 exit, Vec3 direction, float intensity, boolean afterburner) {
+        Long2ObjectOpenHashMap<Sent> sent = SENT.computeIfAbsent(level.dimension(), dimension -> new Long2ObjectOpenHashMap<>());
+        long now = level.getGameTime();
+        int quantized = Math.round(Math.max(0.0F, Math.min(1.0F, intensity)) * 100.0F);
+        Sent last = sent.get(key.asLong());
+        if (last != null && now - last.tick() < RESEND_TICKS && last.intensity() == quantized && last.afterburner() == afterburner
+                && last.direction().distanceToSqr(direction) < 1.0E-4) {
+            return;
+        }
+        sent.put(key.asLong(), new Sent(now, direction, quantized, afterburner));
+        ExhaustPacket packet = new ExhaustPacket(key, exit.subtract(key.getX(), key.getY(), key.getZ()), direction, quantized, afterburner);
+        // Near where the exhaust is in the world: on a ship the block itself is far out in the ship's own chunks, which
+        // nobody is tracking in the usual way
+        Vec3 world = exit;
+        var ship = VSGameUtilsKt.getShipManagingPos(level, key);
+        if (ship != null) {
+            Vector3d transformed = ship.getShipToWorld().transformPosition(new Vector3d(exit.x, exit.y, exit.z));
+            world = new Vec3(transformed.x, transformed.y, transformed.z);
+        }
+        Vec3 point = world;
+        Network.CHANNEL.send(PacketDistributor.NEAR.with(() -> new PacketDistributor.TargetPoint(point.x, point.y, point.z,
+                RANGE, level.dimension())), packet);
+        if (!announced) {
+            announced = true;
+            ImprovedAerodynamics.LOGGER.info("Sent the first improved exhaust flame, at {} (world {}) to the players within {} blocks",
+                    key.toShortString(), point, RANGE);
+        }
+    }
+
+    @SubscribeEvent
+    public static void onServerStopped(ServerStoppedEvent event) {
+        SENT.clear();
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/ExhaustThrust.java

@@ -0,0 +1,46 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import net.mcreator.valkyrienwarium.ships.ForceData;
+import net.mcreator.valkyrienwarium.ships.ForceDirectionMode;
+import net.mcreator.valkyrienwarium.ships.ForceInducedShips;
+import net.mcreator.valkyrienwarium.ships.ForceMode;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.phys.Vec3;
+import org.joml.Vector3d;
+import org.valkyrienskies.core.api.ships.LoadedServerShip;
+import org.valkyrienskies.core.api.ships.ServerShip;
+import org.valkyrienskies.mod.common.VSGameUtilsKt;
+
+/**
+ * Thrust of a nozzle, the way Futurism's vectored afterburner makes it: the power comes from the Warium jet exhaust
+ * directly behind the nozzle, which hands it over through its {@code ExhaustPower} value instead of pushing the ship
+ * itself because the nozzle is in the {@code warium_vs:blocksjet} tag. The push goes opposite to the way the exhaust
+ * leaves, so a nozzle deflected upwards pushes the tail down. Only used where Warium VS is installed.
+ */
+final class ExhaustThrust {
+    private ExhaustThrust() {
+    }
+
+    /** The power the jet exhaust directly behind the nozzle hands over, 0 if there is none or it is off. */
+    static double power(Level level, BlockPos pos, Direction facing) {
+        BlockEntity exhaust = level.getBlockEntity(pos.relative(facing.getOpposite()));
+        return exhaust != null ? exhaust.getPersistentData().getDouble("ExhaustPower") : 0.0;
+    }
+
+    static void apply(ServerLevel level, BlockPos pos, Direction facing, Vec3 exhaustDirection) {
+        double power = power(level, pos, facing);
+        if (power <= 0.0) {
+            return;
+        }
+        LoadedServerShip ship = VSGameUtilsKt.getLoadedShipManagingPos(level, pos);
+        if (ship == null || ((ServerShip) ship).isStatic()) {
+            return;
+        }
+        Vector3d push = new Vector3d(-exhaustDirection.x, -exhaustDirection.y, -exhaustDirection.z);
+        ForceInducedShips.getOrCreate(ship).addForce(pos, new ForceData(push, power, ForceMode.POSITION, ForceDirectionMode.SHIP));
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/ImprovedExhaust.java

@@ -0,0 +1,116 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import dev.lumareth.improvedAerodynamics.Config;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.level.LevelAccessor;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.block.state.properties.DirectionProperty;
+import net.minecraft.world.level.block.state.properties.Property;
+import net.minecraft.world.phys.Vec3;
+
+/**
+ * The improved exhaust style, see {@code exhaustStyle} in the config. It applies to every block that makes a jet exhaust:
+ * Warium's jet exhaust and VTOL exhaust, Futurism's vectored afterburner behind which a jet exhaust sits, and this mod's
+ * nozzle. In the other style Warium's own effect entities draw the flame and none of this runs.
+ * <p>
+ * Warium's exhausts do not spawn their effect entities then. When one would have, it sends a burning flame to the clients instead, from the
+ * block in front if that one takes over the thrust (the {@code blocksjet} tag), at its exit and along its deflection. The
+ * engine behind the exhaust says how hard it works ({@code Power}) and whether its afterburner burns. Warium's sound is
+ * kept.
+ */
+public final class ImprovedExhaust {
+    private static final double FULL_POWER = 100.0;
+    private static final TagKey<Block> TAKES_OVER_THRUST = TagKey.create(Registries.BLOCK, new ResourceLocation("warium_vs", "blocksjet"));
+
+    private ImprovedExhaust() {
+    }
+
+    public static boolean isImproved() {
+        try {
+            return "improved".equals(Config.EXHAUST_STYLE.get());
+        } catch (IllegalStateException e) {
+            // The config is not loaded yet
+            return true;
+        }
+    }
+
+    // What the exhaust being ticked would have spawned, it only ticks on the server thread and one at a time
+    private static boolean jetEffect;
+    private static boolean afterburnerEffect;
+
+    /** Called when an exhaust starts its tick. */
+    public static void begin() {
+        jetEffect = false;
+        afterburnerEffect = false;
+    }
+
+    /**
+     * Used instead of adding Warium's effect entity. The exhaust only makes one when it burns, so that is the signal to
+     * send the improved flame; in the improved style the entity itself is not added, in the other it is, as always.
+     */
+    public static boolean addEffectEntity(ServerLevel level, Entity entity) {
+        if (!isImproved()) {
+            return level.addFreshEntity(entity);
+        }
+        var key = net.minecraftforge.registries.ForgeRegistries.ENTITY_TYPES.getKey(entity.getType());
+        if (key != null && key.getPath().contains("after")) {
+            afterburnerEffect = true;
+        } else {
+            jetEffect = true;
+        }
+        return false;
+    }
+
+    /** Sends the flame of the exhaust at this position for this tick. */
+    public static void plume(LevelAccessor accessor, double x, double y, double z, BlockState state) {
+        Direction facing = facingOf(state);
+        if (!isImproved() || !(accessor instanceof ServerLevel level) || facing == null) {
+            return;
+        }
+        if (!jetEffect && !afterburnerEffect) {
+            return;
+        }
+        BlockPos pos = BlockPos.containing(x, y, z);
+        boolean afterburner = afterburnerEffect;
+        // How hard it works, if the engine behind says so, otherwise a flame that is clearly there
+        BlockEntity engine = level.getBlockEntity(pos.relative(facing.getOpposite()));
+        double power = engine != null ? engine.getPersistentData().getDouble("Power") : 0.0;
+        float intensity = power > 0.0 ? (float) Math.min(1.0, 0.3 + power / FULL_POWER) : (afterburner ? 1.0F : 0.8F);
+
+        Vec3 exit = NozzleGeometry.exit(pos, facing);
+        Vec3 direction = new Vec3(facing.getStepX(), facing.getStepY(), facing.getStepZ());
+        BlockPos frontPos = pos.relative(facing);
+        BlockState front = level.getBlockState(frontPos);
+        if (front.is(TAKES_OVER_THRUST)) {
+            if (front.getBlock() instanceof NozzleBlock) {
+                // The nozzle draws its own flame, swinging with its nozzle
+                return;
+            }
+            // Futurism's vectored afterburner: its flame leaves its exit, tilted by its vector value
+            Direction frontFacing = facingOf(front) != null ? facingOf(front) : facing;
+            BlockEntity frontEntity = level.getBlockEntity(frontPos);
+            double tilt = frontEntity != null ? frontEntity.getPersistentData().getDouble("Vectorpitch") : 0.0;
+            exit = NozzleGeometry.exit(frontPos, frontFacing);
+            direction = new Vec3(frontFacing.getStepX(), frontFacing.getStepY() + tilt, frontFacing.getStepZ()).normalize();
+        }
+        ExhaustSync.emit(level, pos, exit, direction, intensity, afterburner);
+    }
+
+    /** The direction a Warium block faces, from its property called facing, which is not always the same property. */
+    public static Direction facingOf(BlockState state) {
+        for (Property<?> property : state.getProperties()) {
+            if (property instanceof DirectionProperty direction && property.getName().equals("facing")) {
+                return state.getValue(direction);
+            }
+        }
+        return null;
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/NozzleBlock.java

@@ -0,0 +1,89 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.network.chat.Component;
+import net.minecraft.world.InteractionHand;
+import net.minecraft.world.InteractionResult;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.item.context.BlockPlaceContext;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.BaseEntityBlock;
+import net.minecraft.world.level.block.DirectionalBlock;
+import net.minecraft.world.level.block.Mirror;
+import net.minecraft.world.level.block.RenderShape;
+import net.minecraft.world.level.block.Rotation;
+import net.minecraft.world.level.block.SoundType;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.entity.BlockEntityTicker;
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.block.state.StateDefinition;
+import net.minecraft.world.level.block.state.properties.BooleanProperty;
+import net.minecraft.world.level.material.MapColor;
+import net.minecraft.world.phys.BlockHitResult;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Jet engine nozzle with thrust vectoring. Faces the way its exhaust leaves, like Warium's jet exhausts, and is drawn by
+ * AzureLib. Sneak-use with an empty hand switches it between left and right engine.
+ */
+public class NozzleBlock extends BaseEntityBlock {
+    public static final BooleanProperty LIT = BooleanProperty.create("lit");
+
+    public NozzleBlock() {
+        super(Properties.of().mapColor(MapColor.METAL).strength(3.0F, 6.0F).requiresCorrectToolForDrops()
+                .sound(SoundType.METAL).noOcclusion().lightLevel(state -> state.getValue(LIT) ? 13 : 0));
+        registerDefaultState(stateDefinition.any().setValue(DirectionalBlock.FACING, net.minecraft.core.Direction.NORTH)
+                .setValue(LIT, false));
+    }
+
+    @Override
+    protected void createBlockStateDefinition(StateDefinition.Builder<net.minecraft.world.level.block.Block, BlockState> builder) {
+        builder.add(DirectionalBlock.FACING, LIT);
+    }
+
+    @Override
+    public BlockState getStateForPlacement(BlockPlaceContext context) {
+        return defaultBlockState().setValue(DirectionalBlock.FACING, context.getNearestLookingDirection().getOpposite());
+    }
+
+    @Override
+    public BlockState rotate(BlockState state, Rotation rotation) {
+        return state.setValue(DirectionalBlock.FACING, rotation.rotate(state.getValue(DirectionalBlock.FACING)));
+    }
+
+    @Override
+    public BlockState mirror(BlockState state, Mirror mirror) {
+        return state.rotate(mirror.getRotation(state.getValue(DirectionalBlock.FACING)));
+    }
+
+    @Override
+    public RenderShape getRenderShape(BlockState state) {
+        return RenderShape.ENTITYBLOCK_ANIMATED;
+    }
+
+    @Override
+    public InteractionResult use(BlockState state, Level level, BlockPos pos, Player player, InteractionHand hand, BlockHitResult hit) {
+        if (!player.isShiftKeyDown() || !player.getItemInHand(hand).isEmpty()) {
+            return InteractionResult.PASS;
+        }
+        if (!level.isClientSide && level.getBlockEntity(pos) instanceof NozzleBlockEntity nozzle) {
+            nozzle.setRightEngine(!nozzle.isRightEngine());
+            player.displayClientMessage(Component.translatable(nozzle.isRightEngine()
+                    ? "message.improved_aerodynamics.nozzle.right" : "message.improved_aerodynamics.nozzle.left"), true);
+        }
+        return InteractionResult.sidedSuccess(level.isClientSide);
+    }
+
+    @Nullable
+    @Override
+    public BlockEntity newBlockEntity(BlockPos pos, BlockState state) {
+        return new NozzleBlockEntity(pos, state);
+    }
+
+    @Nullable
+    @Override
+    public <T extends BlockEntity> BlockEntityTicker<T> getTicker(Level level, BlockState state, BlockEntityType<T> type) {
+        return createTickerHelper(type, NozzleContent.NOZZLE_ENTITY.get(), NozzleBlockEntity::tick);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/NozzleBlockEntity.java

@@ -0,0 +1,281 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import dev.lumareth.improvedAerodynamics.Config;
+import dev.lumareth.improvedAerodynamics.exhaust.client.NozzleClientEffects;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.network.Connection;
+import net.minecraft.network.protocol.Packet;
+import net.minecraft.network.protocol.game.ClientGamePacketListener;
+import net.minecraft.network.protocol.game.ClientboundBlockEntityDataPacket;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.DirectionalBlock;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.phys.AABB;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * State of one vectored afterburner nozzle. The server owns it: whatever drives the nozzle (a debug command now, flight
+ * logic later) calls {@link #setDeflectionTarget}, {@link #setThrottle} and {@link #setAfterburner}, the rest follows
+ * from them. Everything the client needs to draw the nozzle is in the update tag, so players that join or reload the
+ * chunk see the right state.
+ */
+public class NozzleBlockEntity extends BlockEntity {
+    // Warium's throttle goes from 0 to 10
+    private static final float MAX_NODE_THROTTLE = 10.0F;
+    private static final boolean WARIUM_LOADED = net.minecraftforge.fml.ModList.get().isLoaded("valkyrien_warium");
+    // What changes are worth an update packet: a quarter degree, two percent throttle
+    private static final float DEFLECTION_STEP = (float) Math.toRadians(0.25);
+    private static final float THROTTLE_STEP = 0.02F;
+
+    private float deflectionTarget;
+    private float deflectionPrevious;
+    private float deflectionCurrent;
+    private float throttle;
+    private boolean afterburnerRequested;
+    private boolean afterburnerAuto;
+    private boolean afterburner;
+    private boolean rightEngine;
+
+    // Last values sent to the clients
+    private int sentDeflection;
+    private int sentThrottle;
+    private boolean sentAfterburner;
+    private boolean sentRightEngine;
+
+    /** The client's sound and particle state, owned by {@link NozzleClientEffects}. */
+    @Nullable
+    private Object clientEffects;
+
+    public NozzleBlockEntity(BlockPos pos, BlockState state) {
+        super(NozzleContent.NOZZLE_ENTITY.get(), pos, state);
+    }
+
+    // ---- API ----
+
+    /** Sets where the nozzle should swing to, in radians, positive turns the nozzle's rotation bone positively. */
+    public void setDeflectionTarget(float radians) {
+        float limit = (float) Math.toRadians(Config.NOZZLE_MAX_DEFLECTION.get());
+        deflectionTarget = Math.max(-limit, Math.min(limit, radians));
+        changed();
+    }
+
+    /** Sets the engine throttle, 0 to 1. Only matters for a nozzle that is not linked to a control node. */
+    public void setThrottle(float throttle) {
+        this.throttle = Math.max(0.0F, Math.min(1.0F, throttle));
+        changed();
+    }
+
+    /** Forces the afterburner on, independent of the control node. Switching it off leaves it to the afterburner key again. */
+    public void setAfterburner(boolean on) {
+        afterburnerRequested = on;
+        changed();
+    }
+
+    public void setRightEngine(boolean right) {
+        rightEngine = right;
+        changed();
+    }
+
+    public float getDeflectionTarget() {
+        return deflectionTarget;
+    }
+
+    /** The deflection being drawn, eased towards the target, interpolated between ticks. */
+    public float getDeflection(float partialTick) {
+        return deflectionPrevious + (deflectionCurrent - deflectionPrevious) * partialTick;
+    }
+
+    public float getThrottle() {
+        return throttle;
+    }
+
+    public boolean isAfterburner() {
+        return afterburner;
+    }
+
+    public boolean isRightEngine() {
+        return rightEngine;
+    }
+
+    public Direction getFacing() {
+        return getBlockState().getValue(DirectionalBlock.FACING);
+    }
+
+    // ---- Ticking ----
+
+    public static void tick(Level level, BlockPos pos, BlockState state, NozzleBlockEntity nozzle) {
+        nozzle.tick(level);
+    }
+
+    private void tick(Level level) {
+        if (!level.isClientSide) {
+            drive(level);
+        }
+        float maxStep = (float) Math.toRadians(Config.NOZZLE_SLEW_RATE.get() / 20.0);
+        deflectionPrevious = deflectionCurrent;
+        deflectionCurrent += Math.max(-maxStep, Math.min(maxStep, deflectionTarget - deflectionCurrent));
+
+        if (level.isClientSide) {
+            NozzleClientEffects.tick(this);
+            return;
+        }
+        boolean lit = afterburnerRequested || afterburnerAuto;
+        if (lit != afterburner) {
+            afterburner = lit;
+            setChanged();
+        }
+        sync();
+        boolean light = lit && Config.NOZZLE_LIGHT.get();
+        BlockState state = getBlockState();
+        if (state.getValue(NozzleBlock.LIT) != light) {
+            level.setBlock(worldPosition, state.setValue(NozzleBlock.LIT, light), 3);
+        }
+        if (WARIUM_LOADED && level instanceof ServerLevel serverLevel) {
+            ExhaustThrust.apply(serverLevel, worldPosition, getFacing(),
+                    NozzleGeometry.exhaustDirection(getFacing(), deflectionCurrent, rightEngine));
+        }
+    }
+
+    /**
+     * Takes throttle, deflection and afterburner from the linked control node. A nozzle without a link keeps what the
+     * API or the debug command gave it.
+     */
+    private void drive(Level level) {
+        NozzleControl.Inputs inputs = NozzleControl.read(level, this);
+        if (inputs == null) {
+            afterburnerAuto = false;
+            return;
+        }
+        // No flame without a running engine behind the nozzle: the jet exhaust there hands over its power
+        boolean running = !WARIUM_LOADED || ExhaustThrust.power(level, worldPosition, getFacing()) > 0.0;
+        throttle = running ? Math.min(1.0F, (float) inputs.throttle() / MAX_NODE_THROTTLE) : 0.0F;
+        float pitch = (float) inputs.pitchUp();
+        float roll = (float) inputs.rollRight();
+        deflectionTarget = NozzleMixing.deflection(pitch, roll, (float) inputs.yawRight(), rightEngine);
+        double minimum = Config.AFTERBURNER_MIN_THROTTLE.get();
+        if (inputs.afterburnerSwitch() && inputs.throttle() < minimum) {
+            // Too little throttle: out, and it stays out until the key is pressed again
+            inputs.node().getPersistentData().putBoolean(AfterburnerToggle.TAG, false);
+            inputs.node().setChanged();
+        }
+        afterburnerAuto = running && inputs.afterburnerSwitch() && inputs.throttle() >= minimum;
+    }
+
+    /** Saves the state, and tells the clients if something they can see changed. */
+    private void changed() {
+        setChanged();
+        sync();
+    }
+
+    private void sync() {
+        if (level == null || level.isClientSide) {
+            return;
+        }
+        int deflection = Math.round(deflectionTarget / DEFLECTION_STEP);
+        int throttleStep = Math.round(throttle / THROTTLE_STEP);
+        if (deflection != sentDeflection || throttleStep != sentThrottle || afterburner != sentAfterburner || rightEngine != sentRightEngine) {
+            sentDeflection = deflection;
+            sentThrottle = throttleStep;
+            sentAfterburner = afterburner;
+            sentRightEngine = rightEngine;
+            level.sendBlockUpdated(worldPosition, getBlockState(), getBlockState(), UPDATE_CLIENTS);
+        }
+    }
+
+    private static final int UPDATE_CLIENTS = 2;
+
+    // ---- Saving and syncing ----
+
+    @Override
+    protected void saveAdditional(CompoundTag tag) {
+        super.saveAdditional(tag);
+        tag.putFloat("Deflection", deflectionTarget);
+        tag.putFloat("Throttle", throttle);
+        tag.putBoolean("Afterburner", afterburner);
+        tag.putBoolean("AfterburnerRequested", afterburnerRequested);
+        tag.putBoolean("RightEngine", rightEngine);
+    }
+
+    @Override
+    public void load(CompoundTag tag) {
+        super.load(tag);
+        deflectionTarget = tag.getFloat("Deflection");
+        throttle = tag.getFloat("Throttle");
+        afterburner = tag.getBoolean("Afterburner");
+        afterburnerRequested = tag.getBoolean("AfterburnerRequested");
+        afterburnerAuto = afterburner && !afterburnerRequested;
+        rightEngine = tag.getBoolean("RightEngine");
+        if (level == null || !level.isClientSide || deflectionCurrent == 0.0F && deflectionPrevious == 0.0F) {
+            // Loaded fresh: start at the target instead of swinging in from zero
+            deflectionCurrent = deflectionTarget;
+            deflectionPrevious = deflectionTarget;
+        }
+        sentDeflection = Math.round(deflectionTarget / DEFLECTION_STEP);
+        sentThrottle = Math.round(throttle / THROTTLE_STEP);
+        sentAfterburner = afterburner;
+        sentRightEngine = rightEngine;
+    }
+
+    @Override
+    public CompoundTag getUpdateTag() {
+        return saveWithoutMetadata();
+    }
+
+    @Override
+    public Packet<ClientGamePacketListener> getUpdatePacket() {
+        return ClientboundBlockEntityDataPacket.create(this);
+    }
+
+    @Override
+    public void onDataPacket(Connection connection, ClientboundBlockEntityDataPacket packet) {
+        CompoundTag tag = packet.getTag();
+        if (tag != null) {
+            // Warium's key configuration screen reads the keys from the block's persistent data on the client, so that
+            // has to arrive too. Not load() as a whole: the deflection on screen must keep easing from where it is
+            super.load(tag);
+            deflectionTarget = tag.getFloat("Deflection");
+            throttle = tag.getFloat("Throttle");
+            afterburner = tag.getBoolean("Afterburner");
+            rightEngine = tag.getBoolean("RightEngine");
+        }
+    }
+
+    // ---- Client ----
+
+    @Nullable
+    public Object getClientEffects() {
+        return clientEffects;
+    }
+
+    public void setClientEffects(@Nullable Object clientEffects) {
+        this.clientEffects = clientEffects;
+    }
+
+    @Override
+    public AABB getRenderBoundingBox() {
+        // The nozzle swings out of the block and the flame trails behind it
+        return new AABB(worldPosition).inflate(2.0);
+    }
+
+    @Override
+    public void setRemoved() {
+        super.setRemoved();
+        stopEffects();
+    }
+
+    @Override
+    public void onChunkUnloaded() {
+        super.onChunkUnloaded();
+        stopEffects();
+    }
+
+    private void stopEffects() {
+        if (level != null && level.isClientSide) {
+            NozzleClientEffects.stop(this);
+        }
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/NozzleCommands.java

@@ -0,0 +1,70 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import com.mojang.brigadier.arguments.BoolArgumentType;
+import com.mojang.brigadier.arguments.FloatArgumentType;
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.commands.Commands;
+import net.minecraft.commands.arguments.coordinates.BlockPosArgument;
+import net.minecraft.core.BlockPos;
+import net.minecraft.network.chat.Component;
+
+import java.util.function.Consumer;
+
+/**
+ * {@code /aero nozzle <pos> ...}: moves a vectored afterburner nozzle by hand, for testing it without the flight system.
+ * {@code deflection <degrees>}, {@code throttle <0..1>}, {@code afterburner <true|false>} and {@code right <true|false>}.
+ */
+public final class NozzleCommands {
+    private NozzleCommands() {
+    }
+
+    public static LiteralArgumentBuilder<CommandSourceStack> node() {
+        return Commands.literal("nozzle").then(Commands.argument("pos", BlockPosArgument.blockPos())
+                .executes(context -> status(context.getSource(), BlockPosArgument.getLoadedBlockPos(context, "pos")))
+                .then(Commands.literal("deflection").then(Commands.argument("degrees", FloatArgumentType.floatArg(-90.0F, 90.0F))
+                        .executes(context -> {
+                            float degrees = FloatArgumentType.getFloat(context, "degrees");
+                            return modify(context.getSource(), BlockPosArgument.getLoadedBlockPos(context, "pos"),
+                                    nozzle -> nozzle.setDeflectionTarget((float) Math.toRadians(degrees)));
+                        })))
+                .then(Commands.literal("throttle").then(Commands.argument("throttle", FloatArgumentType.floatArg(0.0F, 1.0F))
+                        .executes(context -> {
+                            float throttle = FloatArgumentType.getFloat(context, "throttle");
+                            return modify(context.getSource(), BlockPosArgument.getLoadedBlockPos(context, "pos"),
+                                    nozzle -> nozzle.setThrottle(throttle));
+                        })))
+                .then(Commands.literal("afterburner").then(Commands.argument("on", BoolArgumentType.bool())
+                        .executes(context -> {
+                            boolean on = BoolArgumentType.getBool(context, "on");
+                            return modify(context.getSource(), BlockPosArgument.getLoadedBlockPos(context, "pos"),
+                                    nozzle -> nozzle.setAfterburner(on));
+                        })))
+                .then(Commands.literal("right").then(Commands.argument("right", BoolArgumentType.bool())
+                        .executes(context -> {
+                            boolean right = BoolArgumentType.getBool(context, "right");
+                            return modify(context.getSource(), BlockPosArgument.getLoadedBlockPos(context, "pos"),
+                                    nozzle -> nozzle.setRightEngine(right));
+                        }))));
+    }
+
+    private static int modify(CommandSourceStack source, BlockPos pos, Consumer<NozzleBlockEntity> change) {
+        if (!(source.getLevel().getBlockEntity(pos) instanceof NozzleBlockEntity nozzle)) {
+            source.sendFailure(Component.literal("There is no vectored afterburner nozzle at " + pos.toShortString()));
+            return 0;
+        }
+        change.accept(nozzle);
+        return status(source, pos);
+    }
+
+    private static int status(CommandSourceStack source, BlockPos pos) {
+        if (!(source.getLevel().getBlockEntity(pos) instanceof NozzleBlockEntity nozzle)) {
+            source.sendFailure(Component.literal("There is no vectored afterburner nozzle at " + pos.toShortString()));
+            return 0;
+        }
+        source.sendSuccess(() -> Component.literal(String.format("Nozzle at %s: deflection %.1f deg, throttle %.2f, afterburner %s, %s engine",
+                pos.toShortString(), Math.toDegrees(nozzle.getDeflectionTarget()), nozzle.getThrottle(),
+                nozzle.isAfterburner() ? "on" : "off", nozzle.isRightEngine() ? "right" : "left")), false);
+        return 1;
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/NozzleContent.java

@@ -0,0 +1,46 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import dev.lumareth.improvedAerodynamics.ImprovedAerodynamics;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.network.chat.Component;
+import net.minecraft.world.item.BlockItem;
+import net.minecraft.world.item.CreativeModeTab;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.entity.BlockEntityType;
+import net.minecraftforge.eventbus.api.IEventBus;
+import net.minecraftforge.registries.DeferredRegister;
+import net.minecraftforge.registries.ForgeRegistries;
+import net.minecraftforge.registries.RegistryObject;
+
+/** Registry entries of the vectored afterburner nozzle. */
+public final class NozzleContent {
+    private static final DeferredRegister<Block> BLOCKS = DeferredRegister.create(ForgeRegistries.BLOCKS, ImprovedAerodynamics.MOD_ID);
+    private static final DeferredRegister<Item> ITEMS = DeferredRegister.create(ForgeRegistries.ITEMS, ImprovedAerodynamics.MOD_ID);
+    private static final DeferredRegister<BlockEntityType<?>> BLOCK_ENTITIES =
+            DeferredRegister.create(ForgeRegistries.BLOCK_ENTITY_TYPES, ImprovedAerodynamics.MOD_ID);
+    private static final DeferredRegister<CreativeModeTab> TABS =
+            DeferredRegister.create(Registries.CREATIVE_MODE_TAB, ImprovedAerodynamics.MOD_ID);
+
+    public static final RegistryObject<Block> NOZZLE = BLOCKS.register("vectored_afterburner_nozzle", NozzleBlock::new);
+    public static final RegistryObject<Item> NOZZLE_ITEM = ITEMS.register("vectored_afterburner_nozzle",
+            () -> new BlockItem(NOZZLE.get(), new Item.Properties()));
+    public static final RegistryObject<BlockEntityType<NozzleBlockEntity>> NOZZLE_ENTITY = BLOCK_ENTITIES.register("vectored_afterburner_nozzle",
+            () -> BlockEntityType.Builder.of(NozzleBlockEntity::new, NOZZLE.get()).build(null));
+
+    public static final RegistryObject<CreativeModeTab> TAB = TABS.register("main", () -> CreativeModeTab.builder()
+            .title(Component.translatable("itemGroup." + ImprovedAerodynamics.MOD_ID))
+            .icon(() -> NOZZLE_ITEM.get().getDefaultInstance())
+            .displayItems((parameters, output) -> output.accept(NOZZLE_ITEM.get()))
+            .build());
+
+    private NozzleContent() {
+    }
+
+    public static void register(IEventBus modBus) {
+        BLOCKS.register(modBus);
+        ITEMS.register(modBus);
+        BLOCK_ENTITIES.register(modBus);
+        TABS.register(modBus);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/NozzleControl.java

@@ -0,0 +1,68 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraftforge.registries.ForgeRegistries;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * What a nozzle reads from the vehicle control node it was linked to with Warium's linker, and how its two keys, set
+ * with Warium's two key configuration screen, are read. Either key can name any axis: Pitch+ means W raises the nose and
+ * Pitch- means S does, Roll+ or Roll- says which roll input rolls the plane right, Yaw+ or Yaw- which yaw input yaws it
+ * right. An axis no key names is off, except that a nozzle with no key at all pitches with W, and yaw follows D without
+ * a key.
+ */
+final class NozzleControl {
+    private static final ResourceLocation NODE_BLOCK = new ResourceLocation("valkyrien_warium", "vehicle_control_node");
+
+    /** The control node's state in node units: pitch, roll and yaw from -1 to 1, throttle from 0 to 10. Yaw needs no key, D is right. */
+    record Inputs(BlockEntity node, double pitchUp, double rollRight, double yawRight, double throttle, boolean afterburnerSwitch) {
+    }
+
+    private NozzleControl() {
+    }
+
+    @Nullable
+    static Inputs read(Level level, NozzleBlockEntity nozzle) {
+        CompoundTag own = nozzle.getPersistentData();
+        if (!own.contains("ControlX")) {
+            return null;
+        }
+        BlockPos nodePos = BlockPos.containing(own.getDouble("ControlX"), own.getDouble("ControlY"), own.getDouble("ControlZ"));
+        if (!level.isLoaded(nodePos) || !ForgeRegistries.BLOCKS.getKey(level.getBlockState(nodePos).getBlock()).equals(NODE_BLOCK)) {
+            return null;
+        }
+        BlockEntity node = level.getBlockEntity(nodePos);
+        if (node == null) {
+            return null;
+        }
+        CompoundTag tag = node.getPersistentData();
+        String key = own.getString("Key");
+        String key2 = own.getString("Key2");
+        boolean unset = (key.isEmpty() || key.equals("Null")) && (key2.isEmpty() || key2.equals("Null"));
+        double pitch = clamp(tag.getDouble("Pitch")) * sign(key, key2, "Pitch", unset ? 1.0 : 0.0);
+        double roll = clamp(tag.getDouble("Roll")) * sign(key, key2, "Roll", 0.0);
+        double yaw = clamp(tag.getDouble("Yaw")) * sign(key, key2, "Yaw", 1.0);
+        return new Inputs(node, pitch, roll, yaw, Math.max(0.0, tag.getDouble("Throttle")), tag.getBoolean(AfterburnerToggle.TAG));
+    }
+
+    /** +1 for axis+, -1 for axis-, from the first key that names the axis, the fallback if neither does. */
+    private static double sign(String key, String key2, String axis, double fallback) {
+        for (String candidate : new String[]{key, key2}) {
+            if (candidate.equals(axis + "+")) {
+                return 1.0;
+            }
+            if (candidate.equals(axis + "-")) {
+                return -1.0;
+            }
+        }
+        return fallback;
+    }
+
+    private static double clamp(double value) {
+        return Math.max(-1.0, Math.min(1.0, value));
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/NozzleGeometry.java

@@ -0,0 +1,55 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import net.minecraft.core.Direction;
+import net.minecraft.world.phys.Vec3;
+import org.joml.Quaternionf;
+import org.joml.Vector3f;
+
+/**
+ * Where the exhaust leaves the nozzle and which way it goes, in the block's own coordinates (ship coordinates on a
+ * ship). Matches the model: the nozzle sits in the north half of the block, tilted by the hinge bone and swung by the
+ * rotation bone, and the block is turned by its facing the way AzureLib turns the model.
+ */
+public final class NozzleGeometry {
+    /** Static tilt of the hinge bone around the thrust axis, in degrees, see the model. */
+    private static final float HINGE_TILT = 32.5F;
+    /** The right engine swings about the mirrored axis, so the same deflection turns the opposite way there. */
+    public static final float RIGHT_ENGINE_SIGN = -1.0F;
+
+    private NozzleGeometry() {
+    }
+
+    /** Center of the nozzle exit, on the block face the exhaust leaves through. */
+    public static Vec3 exit(net.minecraft.core.BlockPos pos, Direction facing) {
+        return new Vec3(pos.getX() + 0.5 + facing.getStepX() * 0.5, pos.getY() + 0.5 + facing.getStepY() * 0.5,
+                pos.getZ() + 0.5 + facing.getStepZ() * 0.5);
+    }
+
+    /**
+     * Unit vector the exhaust moves along. At no deflection it is the facing, a deflection swings it around the axis the
+     * rotation bone turns about: the hinge's tilt applied to X for the left engine, to Y for the right one.
+     */
+    public static Vec3 exhaustDirection(Direction facing, float deflection, boolean rightEngine) {
+        Vector3f swing = new Vector3f(0.0F, 0.0F, -1.0F);
+        swing.rotateAxis((rightEngine ? RIGHT_ENGINE_SIGN : 1.0F) * deflection, rightEngine ? 0.0F : 1.0F, rightEngine ? 1.0F : 0.0F, 0.0F);
+        // The deflection is about an axis turned by the hinge, the counter bone turns the nozzle back
+        swing.rotateZ((float) Math.toRadians(HINGE_TILT));
+        swing.rotate(facingRotation(facing));
+        return new Vec3(swing.x, swing.y, swing.z);
+    }
+
+    /** The turn AzureLib applies to a model for a block facing, from facing north. */
+    private static Quaternionf facingRotation(Direction facing) {
+        Quaternionf rotation = new Quaternionf();
+        switch (facing) {
+            case SOUTH -> rotation.rotateY((float) Math.toRadians(180));
+            case WEST -> rotation.rotateY((float) Math.toRadians(90));
+            case EAST -> rotation.rotateY((float) Math.toRadians(270));
+            case UP -> rotation.rotateX((float) Math.toRadians(90));
+            case DOWN -> rotation.rotateX((float) Math.toRadians(-90));
+            default -> {
+            }
+        }
+        return rotation;
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/NozzleMixing.java

@@ -0,0 +1,29 @@
+package dev.lumareth.improvedAerodynamics.exhaust;
+
+import dev.lumareth.improvedAerodynamics.Config;
+
+/**
+ * Turns pilot inputs into the deflection of one nozzle of a twin engine craft: the same sign on both engines pitches,
+ * opposite signs roll and yaw. The nozzles hinge on canted axes, so deflecting them against each other turns the exhaust
+ * sideways as well as up and down: the vertical parts make a rolling moment, the sideways parts push the tail around.
+ * That coupling is how an Su-57 yaws with its nozzles, so roll and yaw share the one differential channel. Positive
+ * deflection always means the exhaust swings up, on both sides. Not tied to any input source, whatever drives the
+ * nozzles calls this and then {@link NozzleBlockEntity#setDeflectionTarget}.
+ */
+public final class NozzleMixing {
+    private NozzleMixing() {
+    }
+
+    /**
+     * @param pitchUp   -1 to 1, positive raises the nose, which takes the exhaust up
+     * @param rollRight -1 to 1, positive rolls the plane right, which takes the right engine's exhaust up and the left one's down
+     * @param yawRight  -1 to 1, positive yaws the nose right. The left engine's exhaust swings up and the right one's down,
+     *                  which for this model's canting turns both sideways to the left and pushes the tail left
+     * @return target deflection in radians, within the configured limit
+     */
+    public static float deflection(float pitchUp, float rollRight, float yawRight, boolean rightEngine) {
+        float differential = rollRight - yawRight * Config.NOZZLE_YAW_MIX.get().floatValue();
+        float mixed = Math.max(-1.0F, Math.min(1.0F, pitchUp + (rightEngine ? differential : -differential)));
+        return mixed * (float) Math.toRadians(Config.NOZZLE_MAX_DEFLECTION.get());
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/client/ExhaustFlames.java

@@ -0,0 +1,144 @@
+package dev.lumareth.improvedAerodynamics.exhaust.client;
+
+import com.mojang.blaze3d.vertex.PoseStack;
+import com.mojang.blaze3d.vertex.VertexConsumer;
+import dev.lumareth.improvedAerodynamics.Config;
+import dev.lumareth.improvedAerodynamics.ImprovedAerodynamics;
+import dev.lumareth.improvedAerodynamics.exhaust.ImprovedExhaust;
+import dev.lumareth.improvedAerodynamics.network.ExhaustPacket;
+import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.MultiBufferSource;
+import net.minecraft.core.BlockPos;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.phys.Vec3;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.client.event.RenderLevelStageEvent;
+import net.minecraftforge.event.TickEvent;
+import net.minecraftforge.event.level.LevelEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.common.Mod;
+import org.joml.Matrix4dc;
+import org.joml.Quaternionf;
+import org.joml.Vector3d;
+import org.joml.Vector3f;
+import org.valkyrienskies.core.api.ships.ClientShip;
+import org.valkyrienskies.mod.common.VSGameUtilsKt;
+
+import java.util.Iterator;
+
+/**
+ * The flames of Warium's jet exhausts in the improved style. The server says which exhausts burn, see {@code ExhaustSync},
+ * and each stays alive on the client for a few ticks after its last message, fading out. They are drawn after the
+ * particles, in the world, on ships with the ship's interpolated transform, and give off their particles here.
+ */
+@Mod.EventBusSubscriber(modid = ImprovedAerodynamics.MOD_ID, value = Dist.CLIENT)
+public final class ExhaustFlames {
+    private static final int LIFETIME_TICKS = 10;
+    private static final int FADE_TICKS = 4;
+
+    private record Flame(BlockPos pos, Vec3 exit, Vec3 direction, float intensity, boolean afterburner, long expires) {
+    }
+
+    private static final Long2ObjectOpenHashMap<Flame> FLAMES = new Long2ObjectOpenHashMap<>();
+
+    private static boolean announced;
+
+    private ExhaustFlames() {
+    }
+
+    public static void accept(ExhaustPacket packet) {
+        Level level = Minecraft.getInstance().level;
+        if (level == null) {
+            return;
+        }
+        if (!announced) {
+            announced = true;
+            ImprovedAerodynamics.LOGGER.info("Received the first improved exhaust flame, at {}", packet.pos().toShortString());
+        }
+        Vec3 exit = packet.exitOffset().add(packet.pos().getX(), packet.pos().getY(), packet.pos().getZ());
+        FLAMES.put(packet.pos().asLong(), new Flame(packet.pos(), exit, packet.direction(), packet.intensity() / 100.0F,
+                packet.afterburner(), level.getGameTime() + LIFETIME_TICKS));
+    }
+
+    @SubscribeEvent
+    public static void onClientTick(TickEvent.ClientTickEvent event) {
+        Level level = Minecraft.getInstance().level;
+        if (event.phase != TickEvent.Phase.END || level == null || FLAMES.isEmpty()) {
+            return;
+        }
+        if (!ImprovedExhaust.isImproved()) {
+            FLAMES.clear();
+            return;
+        }
+        boolean particles = Config.NOZZLE_PARTICLES.get();
+        Iterator<Flame> iterator = FLAMES.values().iterator();
+        while (iterator.hasNext()) {
+            Flame flame = iterator.next();
+            if (level.getGameTime() > flame.expires()) {
+                iterator.remove();
+            } else if (particles) {
+                Vec3 world = transform(level, flame.pos(), flame.exit(), false, 1.0F);
+                Vec3 direction = transform(level, flame.pos(), flame.direction(), true, 1.0F);
+                ExhaustParticles.emit(level, world, direction, flame.intensity(), flame.afterburner());
+            }
+        }
+    }
+
+    @SubscribeEvent
+    public static void onRenderLevel(RenderLevelStageEvent event) {
+        Level level = Minecraft.getInstance().level;
+        if (event.getStage() != RenderLevelStageEvent.Stage.AFTER_PARTICLES || level == null || FLAMES.isEmpty()
+                || !ImprovedExhaust.isImproved()) {
+            return;
+        }
+        float partialTick = event.getPartialTick();
+        Vec3 camera = event.getCamera().getPosition();
+        MultiBufferSource.BufferSource buffers = Minecraft.getInstance().renderBuffers().bufferSource();
+        VertexConsumer buffer = buffers.getBuffer(FlameRenderer.RENDER_TYPE);
+        for (Flame flame : FLAMES.values()) {
+            // Only afterburners burn with the big flame, dry thrust is smoke
+            if (!flame.afterburner()) {
+                continue;
+            }
+            float fade = Math.min(1.0F, (flame.expires() - level.getGameTime() + partialTick) / FADE_TICKS);
+            Vec3 exit = transform(level, flame.pos(), flame.exit(), false, partialTick);
+            Vec3 direction = transform(level, flame.pos(), flame.direction(), true, partialTick);
+
+            PoseStack poseStack = event.getPoseStack();
+            poseStack.pushPose();
+            poseStack.translate(exit.x - camera.x, exit.y - camera.y, exit.z - camera.z);
+            poseStack.mulPose(new Quaternionf().rotationTo(new Vector3f(0.0F, 0.0F, -1.0F),
+                    new Vector3f((float) direction.x, (float) direction.y, (float) direction.z)));
+            PoseStack.Pose pose = poseStack.last();
+            FlameRenderer.draw(buffer, pose.pose(), pose.normal(), 0.0F, 0.0F, 0.0F, flame.intensity(),
+                    level.getGameTime() + partialTick, Math.max(0.0F, fade));
+            poseStack.popPose();
+        }
+        buffers.endBatch(FlameRenderer.RENDER_TYPE);
+    }
+
+    @SubscribeEvent
+    public static void onLevelUnload(LevelEvent.Unload event) {
+        if (event.getLevel().isClientSide()) {
+            FLAMES.clear();
+        }
+    }
+
+    /** A position or direction in the block's coordinates as one in the world, differs on a ship. */
+    private static Vec3 transform(Level level, BlockPos pos, Vec3 vector, boolean direction, float partialTick) {
+        var ship = VSGameUtilsKt.getShipManagingPos(level, pos);
+        if (ship == null) {
+            return vector;
+        }
+        Matrix4dc shipToWorld = ship instanceof ClientShip client && partialTick != 1.0F ? client.getRenderTransform().getShipToWorld()
+                : ship.getShipToWorld();
+        Vector3d result = new Vector3d(vector.x, vector.y, vector.z);
+        if (direction) {
+            shipToWorld.transformDirection(result);
+        } else {
+            shipToWorld.transformPosition(result);
+        }
+        return new Vec3(result.x, result.y, result.z);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/client/ExhaustParticles.java

@@ -0,0 +1,44 @@
+package dev.lumareth.improvedAerodynamics.exhaust.client;
+
+import net.minecraft.core.particles.ParticleOptions;
+import net.minecraft.core.particles.ParticleTypes;
+import net.minecraft.util.RandomSource;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.phys.Vec3;
+
+/** The particles of a jet exhaust in the improved style, for the nozzle and for Warium's exhausts alike. */
+final class ExhaustParticles {
+    private ExhaustParticles() {
+    }
+
+    /**
+     * @param exit      where the exhaust leaves, in the world
+     * @param direction unit vector the exhaust moves along, in the world
+     * @param intensity 0 to 1
+     */
+    static void emit(Level level, Vec3 exit, Vec3 direction, float intensity, boolean afterburner) {
+        RandomSource random = level.getRandom();
+        if (afterburner) {
+            // A hot plume: fire, a blue core and a heavy smoke trail behind it
+            for (int i = 0; i < 4; i++) {
+                spawn(level, random, ParticleTypes.FLAME, exit, direction, 0.8 + 1.4 * intensity, 0.1);
+            }
+            for (int i = 0; i < 2; i++) {
+                spawn(level, random, ParticleTypes.SOUL_FIRE_FLAME, exit, direction, 1.2 + 1.6 * intensity, 0.03);
+            }
+            spawn(level, random, ParticleTypes.LARGE_SMOKE, exit, direction, 0.7 + 0.9 * intensity, 0.12);
+            if (random.nextFloat() < 0.4F) {
+                spawn(level, random, ParticleTypes.CAMPFIRE_COSY_SMOKE, exit, direction, 0.5, 0.15);
+            }
+        } else if (random.nextFloat() < intensity) {
+            spawn(level, random, ParticleTypes.LARGE_SMOKE, exit, direction, 0.4 + 0.6 * intensity, 0.06);
+        }
+    }
+
+    private static void spawn(Level level, RandomSource random, ParticleOptions type, Vec3 position, Vec3 direction, double speed, double spread) {
+        level.addParticle(type, position.x + (random.nextDouble() - 0.5) * 0.3, position.y + (random.nextDouble() - 0.5) * 0.3,
+                position.z + (random.nextDouble() - 0.5) * 0.3,
+                direction.x * speed + (random.nextDouble() - 0.5) * spread, direction.y * speed + (random.nextDouble() - 0.5) * spread,
+                direction.z * speed + (random.nextDouble() - 0.5) * spread);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/client/FlameRenderer.java

@@ -0,0 +1,90 @@
+package dev.lumareth.improvedAerodynamics.exhaust.client;
+
+import com.mojang.blaze3d.vertex.VertexConsumer;
+import net.minecraft.client.renderer.LightTexture;
+import net.minecraft.client.renderer.RenderType;
+import net.minecraft.client.renderer.texture.OverlayTexture;
+import net.minecraft.resources.ResourceLocation;
+import org.joml.Matrix3f;
+import org.joml.Matrix4f;
+
+/**
+ * The afterburner flame: glowing cones with a dull red halo, an orange body, a yellow middle and a blue-white core,
+ * shock diamonds along the axis like a real afterburner and a bright glow at the exit. Length and brightness follow the
+ * throttle and everything flickers. They use the plain white texture and vertex colors, so no model is needed. The flame
+ * points along -Z from the origin it is drawn at, the caller turns and places it.
+ */
+final class FlameRenderer {
+    static final RenderType RENDER_TYPE = RenderType.entityTranslucentEmissive(new ResourceLocation("textures/misc/white.png"));
+    // Radius at the base, and length range
+    private static final float BASE_RADIUS = 0.4F;
+    private static final float MIN_LENGTH = 1.8F;
+    private static final float LENGTH_RANGE = 4.5F;
+    private static final int PLANES = 3;
+    private static final int DIAMONDS = 5;
+    // Radius factor, length factor, red, green, blue, alpha at the base
+    private static final float[][] CONES = {
+            {1.45F, 1.10F, 1.00F, 0.25F, 0.05F, 0.22F},
+            {1.00F, 1.00F, 1.00F, 0.45F, 0.10F, 0.55F},
+            {0.70F, 0.82F, 1.00F, 0.75F, 0.30F, 0.75F},
+            {0.38F, 0.58F, 0.85F, 0.92F, 1.00F, 0.95F},
+    };
+
+    private FlameRenderer() {
+    }
+
+    /**
+     * @param origin   where the flame starts, in the space of the matrix
+     * @param throttle 0 to 1, how long and bright the flame is
+     * @param time     ticks with partial tick, drives the flicker
+     * @param fade     0 to 1, extra brightness factor for flames that are dying down
+     */
+    static void draw(VertexConsumer buffer, Matrix4f matrix, Matrix3f normal, float originX, float originY, float originZ,
+                     float throttle, float time, float fade) {
+        float flicker = 0.9F + 0.07F * (float) Math.sin(time * 1.9F) + 0.05F * (float) Math.sin(time * 4.3F + 1.0F)
+                + 0.03F * (float) Math.sin(time * 9.1F);
+        float length = (MIN_LENGTH + LENGTH_RANGE * throttle) * flicker * (0.4F + 0.6F * fade);
+        float brightness = (0.55F + 0.45F * throttle) * fade;
+        Draw draw = new Draw(buffer, matrix, normal, originX, originY);
+
+        for (float[] cone : CONES) {
+            float pulse = 1.0F + 0.06F * (float) Math.sin(time * 5.0F + cone[0] * 7.0F);
+            draw.cone(originZ, originZ - length * cone[1], BASE_RADIUS * cone[0] * pulse,
+                    cone[2], cone[3], cone[4], Math.min(1.0F, cone[5] * brightness));
+        }
+
+        // Shock diamonds: two cones back to back, spaced along the flame, shrinking and pulsing
+        for (int i = 0; i < DIAMONDS; i++) {
+            float center = originZ - length * (0.14F + 0.15F * i);
+            float radius = BASE_RADIUS * 0.34F * (1.0F - 0.13F * i) * (0.85F + 0.15F * (float) Math.sin(time * 6.0F + i * 1.7F));
+            float half = length * 0.055F;
+            float alpha = Math.min(1.0F, 0.95F * brightness * (1.0F - 0.1F * i));
+            draw.cone(center, center - half, radius, 0.75F, 0.9F, 1.0F, alpha);
+            draw.cone(center, center + half, radius, 0.75F, 0.9F, 1.0F, alpha);
+        }
+
+        // Bright glow right at the exit
+        draw.cone(originZ, originZ - 0.35F, BASE_RADIUS * 0.9F, 1.0F, 0.95F, 0.8F, 0.9F * brightness);
+    }
+
+    /** The buffer and placement of one flame, so the cones only need to say where they are. */
+    private record Draw(VertexConsumer buffer, Matrix4f matrix, Matrix3f normal, float x, float y) {
+        /** A cone of {@code PLANES} crossed triangles from a base circle at baseZ to a point at tipZ. */
+        void cone(float baseZ, float tipZ, float radius, float red, float green, float blue, float baseAlpha) {
+            for (int plane = 0; plane < PLANES; plane++) {
+                double angle = Math.PI * plane / PLANES;
+                float dx = (float) Math.cos(angle) * radius;
+                float dy = (float) Math.sin(angle) * radius;
+                vertex(x - dx, y - dy, baseZ, red, green, blue, baseAlpha);
+                vertex(x + dx, y + dy, baseZ, red, green, blue, baseAlpha);
+                vertex(x, y, tipZ, red, green, blue, 0.0F);
+                vertex(x, y, tipZ, red, green, blue, 0.0F);
+            }
+        }
+
+        private void vertex(float vx, float vy, float vz, float red, float green, float blue, float alpha) {
+            buffer.vertex(matrix, vx, vy, vz).color(red, green, blue, alpha).uv(0.5F, 0.5F)
+                    .overlayCoords(OverlayTexture.NO_OVERLAY).uv2(LightTexture.FULL_BRIGHT).normal(normal, 0.0F, 0.0F, -1.0F).endVertex();
+        }
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/client/NozzleAnimator.java

@@ -0,0 +1,56 @@
+package dev.lumareth.improvedAerodynamics.exhaust.client;
+
+import dev.lumareth.improvedAerodynamics.ImprovedAerodynamics;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleBlockEntity;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleGeometry;
+import mod.azure.azurelib.animation.controller.AzAnimationController;
+import mod.azure.azurelib.animation.controller.AzAnimationControllerContainer;
+import mod.azure.azurelib.animation.impl.AzBlockAnimator;
+import net.minecraft.resources.ResourceLocation;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Swings the nozzle. The model has no keyframes, the animation file is a stub the animator needs anyway; the rotation
+ * bone is set from code every frame, from its initial pose, so the angle can never drift.
+ */
+final class NozzleAnimator extends AzBlockAnimator<NozzleBlockEntity> {
+    static final ResourceLocation ANIMATION = new ResourceLocation(ImprovedAerodynamics.MOD_ID,
+            "animations/blockentities/nozzle.animation.json");
+    private static final String ROTATION_BONE = "rotation";
+    /**
+     * The left engine's nozzle swings about the model's X axis. The right one about Y, the axis that mirrors the hinge's
+     * tilt, and turns the opposite way for the same deflection, see {@link NozzleGeometry#RIGHT_ENGINE_SIGN}.
+     */
+    private static final float LEFT_SIGN = 1.0F;
+
+    NozzleAnimator() {
+        super(mod.azure.azurelib.animation.AzAnimatorConfig.defaultConfig());
+    }
+
+    @Override
+    public void registerControllers(AzAnimationControllerContainer<NozzleBlockEntity> container) {
+        container.add(AzAnimationController.builder(this, "base_controller").build());
+    }
+
+    @Override
+    public @NotNull ResourceLocation getAnimationLocation(NozzleBlockEntity animatable) {
+        return ANIMATION;
+    }
+
+    @Override
+    public void setCustomAnimations(NozzleBlockEntity nozzle, float partialTicks) {
+        super.setCustomAnimations(nozzle, partialTicks);
+        var model = context().boneCache().getBakedModel();
+        var rotation = model != null ? model.getBoneOrNull(ROTATION_BONE) : null;
+        if (rotation == null) {
+            return;
+        }
+        float theta = nozzle.getDeflection(partialTicks);
+        var initial = rotation.getInitialAzSnapshot();
+        if (nozzle.isRightEngine()) {
+            rotation.setRotY(initial.getRotY() + NozzleGeometry.RIGHT_ENGINE_SIGN * theta);
+        } else {
+            rotation.setRotX(initial.getRotX() + LEFT_SIGN * theta);
+        }
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/client/NozzleClientEffects.java

@@ -0,0 +1,113 @@
+package dev.lumareth.improvedAerodynamics.exhaust.client;
+
+import dev.lumareth.improvedAerodynamics.Config;
+import dev.lumareth.improvedAerodynamics.exhaust.ImprovedExhaust;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleBlockEntity;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleGeometry;
+import net.minecraft.core.BlockPos;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.sounds.SoundEvent;
+import net.minecraft.sounds.SoundSource;
+import net.minecraft.util.RandomSource;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.phys.Vec3;
+import net.minecraftforge.registries.ForgeRegistries;
+import org.joml.Vector3d;
+import org.valkyrienskies.mod.common.VSGameUtilsKt;
+
+/**
+ * Client side sound and particles of the nozzles. Only ever called on the logical client.
+ * <p>
+ * Sound is Warium's own: its jet engines have no looping sound either, they play a short blast again and again. The jet
+ * exhaust behind the nozzle does that, the nozzle adds the heavy blast for the afterburner. Nothing here runs in the
+ * wariumvs exhaust style.
+ */
+public final class NozzleClientEffects {
+    private static final SoundSource CATEGORY = SoundSource.BLOCKS;
+    private static final int HEAVY_BLAST_INTERVAL = 14;
+
+    /** What one nozzle has done so far on this client, kept on the block entity. */
+    private static final class State {
+        boolean wasAfterburner;
+    }
+
+    private NozzleClientEffects() {
+    }
+
+    public static void tick(NozzleBlockEntity nozzle) {
+        Level level = nozzle.getLevel();
+        if (level == null) {
+            return;
+        }
+        State state = (State) nozzle.getClientEffects();
+        if (state == null) {
+            state = new State();
+            state.wasAfterburner = nozzle.isAfterburner();
+            nozzle.setClientEffects(state);
+        }
+
+        if (!ImprovedExhaust.isImproved()) {
+            // Warium's own effect, which comes from the exhaust behind the nozzle, is wanted
+            state.wasAfterburner = nozzle.isAfterburner();
+            return;
+        }
+        if (Config.NOZZLE_SOUND.get() && nozzle.isAfterburner()) {
+            playBlasts(level, nozzle, !state.wasAfterburner);
+        }
+        state.wasAfterburner = nozzle.isAfterburner();
+
+        if (Config.NOZZLE_PARTICLES.get() && nozzle.getThrottle() > 0.05F) {
+            emitParticles(level, nozzle);
+        }
+    }
+
+    /** Nothing keeps running on the client, so there is nothing to stop but the remembered state. */
+    public static void stop(NozzleBlockEntity nozzle) {
+        nozzle.setClientEffects(null);
+    }
+
+    private static void playBlasts(Level level, NozzleBlockEntity nozzle, boolean ignition) {
+        RandomSource random = level.getRandom();
+        Vec3 exit = NozzleGeometry.exit(nozzle.getBlockPos(), nozzle.getFacing());
+        Vec3 position = toWorld(level, exit.add(NozzleGeometry.exhaustDirection(nozzle.getFacing(), 0.0F, false).scale(4.0)));
+        long time = level.getGameTime() + nozzle.getBlockPos().hashCode();
+        // Warium's jet exhaust behind the nozzle already plays the engine blast, the afterburner adds the heavy one
+        if (ignition || time % HEAVY_BLAST_INTERVAL == 0) {
+            play(level, "heavyjetblast", position, ignition ? 30.0F : 18.0F, (float) (0.95 + random.nextDouble() * 0.1));
+        }
+    }
+
+    /** Plays one of Warium's sounds, nothing if Warium is not installed. */
+    private static void play(Level level, String name, Vec3 position, float volume, float pitch) {
+        SoundEvent sound = ForgeRegistries.SOUND_EVENTS.getValue(new ResourceLocation("valkyrien_warium", name));
+        if (sound != null) {
+            level.playLocalSound(position.x, position.y, position.z, sound, CATEGORY, volume, pitch, false);
+        }
+    }
+
+    private static void emitParticles(Level level, NozzleBlockEntity nozzle) {
+        Vec3 exit = NozzleGeometry.exit(nozzle.getBlockPos(), nozzle.getFacing());
+        Vec3 direction = NozzleGeometry.exhaustDirection(nozzle.getFacing(), nozzle.getDeflection(1.0F), nozzle.isRightEngine());
+        ExhaustParticles.emit(level, toWorld(level, exit), toWorldDirection(level, nozzle.getBlockPos(), direction),
+                nozzle.getThrottle(), nozzle.isAfterburner());
+    }
+
+    /** A position in the block's coordinates as a position in the world, differs on a ship. */
+    public static Vec3 toWorld(Level level, Vec3 position) {
+        var ship = VSGameUtilsKt.getShipManagingPos(level, position.x, position.y, position.z);
+        if (ship == null) {
+            return position;
+        }
+        Vector3d world = ship.getShipToWorld().transformPosition(new Vector3d(position.x, position.y, position.z));
+        return new Vec3(world.x, world.y, world.z);
+    }
+
+    private static Vec3 toWorldDirection(Level level, BlockPos pos, Vec3 direction) {
+        var ship = VSGameUtilsKt.getShipManagingPos(level, pos);
+        if (ship == null) {
+            return direction;
+        }
+        Vector3d world = ship.getShipToWorld().transformDirection(new Vector3d(direction.x, direction.y, direction.z));
+        return new Vec3(world.x, world.y, world.z);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/client/NozzleClientSetup.java

@@ -0,0 +1,25 @@
+package dev.lumareth.improvedAerodynamics.exhaust.client;
+
+import dev.lumareth.improvedAerodynamics.ImprovedAerodynamics;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleContent;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.client.event.EntityRenderersEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.ModList;
+import net.minecraftforge.fml.common.Mod;
+
+/** Registers the nozzle's AzureLib renderer, if AzureLib is installed. */
+@Mod.EventBusSubscriber(modid = ImprovedAerodynamics.MOD_ID, value = Dist.CLIENT, bus = Mod.EventBusSubscriber.Bus.MOD)
+public final class NozzleClientSetup {
+    private NozzleClientSetup() {
+    }
+
+    @SubscribeEvent
+    public static void onRegisterRenderers(EntityRenderersEvent.RegisterRenderers event) {
+        if (!ModList.get().isLoaded("azurelib")) {
+            ImprovedAerodynamics.LOGGER.warn("AzureLib is not installed, the vectored afterburner nozzle will be invisible");
+            return;
+        }
+        event.registerBlockEntityRenderer(NozzleContent.NOZZLE_ENTITY.get(), context -> new NozzleRenderer());
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/client/NozzleFlameLayer.java

@@ -0,0 +1,47 @@
+package dev.lumareth.improvedAerodynamics.exhaust.client;
+
+import com.mojang.blaze3d.vertex.PoseStack;
+import com.mojang.blaze3d.vertex.VertexConsumer;
+import dev.lumareth.improvedAerodynamics.exhaust.ImprovedExhaust;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleBlockEntity;
+import mod.azure.azurelib.model.AzBone;
+import mod.azure.azurelib.render.AzRendererPipelineContext;
+import mod.azure.azurelib.render.layer.AzRenderLayer;
+
+/**
+ * The afterburner flame of the nozzle, drawn in the space of the nozzle's last bone so it swings with the nozzle, see
+ * {@link FlameRenderer}.
+ */
+final class NozzleFlameLayer implements AzRenderLayer<Long, NozzleBlockEntity> {
+    private static final String NOZZLE_BONE = "counter";
+    // The middle of the nozzle exit in the model's own coordinates, in blocks
+    private static final float EXIT_X = 0.5F;
+    private static final float EXIT_Y = 0.5F;
+    private static final float EXIT_Z = 0.0F;
+
+    @Override
+    public void preRender(AzRendererPipelineContext<Long, NozzleBlockEntity> context) {
+    }
+
+    @Override
+    public void render(AzRendererPipelineContext<Long, NozzleBlockEntity> context) {
+    }
+
+    @Override
+    public void renderForBone(AzRendererPipelineContext<Long, NozzleBlockEntity> context, AzBone bone) {
+        NozzleBlockEntity nozzle = context.animatable();
+        if (!NOZZLE_BONE.equals(bone.getName()) || !nozzle.isAfterburner() || nozzle.getLevel() == null
+                || !ImprovedExhaust.isImproved()) {
+            return;
+        }
+        PoseStack.Pose pose = context.poseStack().last();
+        VertexConsumer buffer = context.multiBufferSource().getBuffer(FlameRenderer.RENDER_TYPE);
+        FlameRenderer.draw(buffer, pose.pose(), pose.normal(), EXIT_X, EXIT_Y, EXIT_Z, nozzle.getThrottle(),
+                nozzle.getLevel().getGameTime() + context.partialTick(), 1.0F);
+    }
+
+    @Override
+    public boolean sortsTranslucency() {
+        return false;
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/client/NozzleModelRenderer.java

@@ -0,0 +1,24 @@
+package dev.lumareth.improvedAerodynamics.exhaust.client;
+
+import com.mojang.blaze3d.vertex.PoseStack;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleBlockEntity;
+import mod.azure.azurelib.render.AzLayerRenderer;
+import mod.azure.azurelib.render.block.AzBlockEntityModelRenderer;
+import mod.azure.azurelib.render.block.AzBlockEntityRendererPipeline;
+import net.minecraft.core.Direction;
+
+/**
+ * AzureLib puts the middle of its models on the middle of the block, the nozzle model is built in the 0 to 16 range of
+ * the block, so it is moved back by half a block after the block is turned to its facing.
+ */
+final class NozzleModelRenderer extends AzBlockEntityModelRenderer<NozzleBlockEntity> {
+    NozzleModelRenderer(AzBlockEntityRendererPipeline<NozzleBlockEntity> pipeline, AzLayerRenderer<Long, NozzleBlockEntity> layerRenderer) {
+        super(pipeline, layerRenderer);
+    }
+
+    @Override
+    protected void rotateBlock(Direction facing, PoseStack poseStack) {
+        super.rotateBlock(facing, poseStack);
+        poseStack.translate(-0.5, 0.0, -0.5);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/exhaust/client/NozzleRenderer.java

@@ -0,0 +1,25 @@
+package dev.lumareth.improvedAerodynamics.exhaust.client;
+
+import dev.lumareth.improvedAerodynamics.ImprovedAerodynamics;
+import dev.lumareth.improvedAerodynamics.exhaust.NozzleBlockEntity;
+import mod.azure.azurelib.render.block.AzBlockEntityRenderer;
+import mod.azure.azurelib.render.block.AzBlockEntityRendererConfig;
+import mod.azure.azurelib.render.block.AzBlockEntityRendererPipeline;
+import net.minecraft.resources.ResourceLocation;
+
+/** Draws the vectored afterburner nozzle with AzureLib. */
+final class NozzleRenderer extends AzBlockEntityRenderer<NozzleBlockEntity> {
+    private static final ResourceLocation MODEL = new ResourceLocation(ImprovedAerodynamics.MOD_ID,
+            "geo/blockentities/vectored_afterburner_nozzle.geo.json");
+    private static final ResourceLocation TEXTURE = new ResourceLocation(ImprovedAerodynamics.MOD_ID,
+            "textures/blockentities/jetexausttexture.png");
+
+    NozzleRenderer() {
+        super(AzBlockEntityRendererConfig.<NozzleBlockEntity>builder(MODEL, TEXTURE)
+                .setAnimatorProvider(NozzleAnimator::new)
+                .setModelRenderer((pipeline, layerRenderer) ->
+                        new NozzleModelRenderer((AzBlockEntityRendererPipeline<NozzleBlockEntity>) pipeline, layerRenderer))
+                .addRenderLayer(new NozzleFlameLayer())
+                .build());
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/flight/AeroState.java

@@ -54,6 +54,8 @@ public final class AeroState implements PhysicsBridge.Publishable {
         double roll;
         double trimIntegral;
         double trimOutput;
+        // Deflection of this node's flaps in radians, moves towards what the flap lever and airspeed allow
+        double flapAngle;
         // Torque (ship axes) one unit of pitch input on this node's pitch surfaces makes, measured every substep
         final Vector3d pitchResponse = new Vector3d();
         final Vector3d pitchResponseBuilding = new Vector3d();
@@ -67,6 +69,7 @@ public final class AeroState implements PhysicsBridge.Publishable {
             trimIntegral = data.autoTrim() ? data.storedTrim() : 0.0;
             trimOutput = trimIntegral;
             savedTrim = trimIntegral;
+            flapAngle = Math.toRadians(FlapSetting.of(data.flapSetting()).degrees());
         }
     }
 
@@ -222,9 +225,10 @@ public final class AeroState implements PhysicsBridge.Publishable {
             NodeData node = s.node() != AeroSurface.NO_NODE ? frame.nodes.get(s.node()) : null;
             NodeState state = node != null ? nodeStates.get(node.key()) : null;
             double input = s.type().controllable ? input(s, node, state, 0.0) : 0.0;
+            double flap = s.flap() && state != null ? state.flapAngle : 0.0;
 
             if (improved) {
-                boolean nowStalled = ImprovedAero.evaluate(s, v, w, r, input, weight, tuning, stalled[i], out);
+                boolean nowStalled = ImprovedAero.evaluate(s, v, w, r, input, flap, weight, tuning, stalled[i], out);
                 if (commit) {
                     stalled[i] = nowStalled;
                     wingStalled |= nowStalled && s.type() == SurfaceType.WING;
@@ -239,7 +243,7 @@ public final class AeroState implements PhysicsBridge.Publishable {
                 probe.clear();
                 double base = 0.0;
                 if (improved) {
-                    ImprovedAero.evaluate(s, v, w, r, input, weight, tuning, stalled[i], probe);
+                    ImprovedAero.evaluate(s, v, w, r, input, flap, weight, tuning, stalled[i], probe);
                 } else {
                     WariumAero.evaluate(s, v, w, r, input, weight, probe);
                 }
@@ -247,7 +251,7 @@ public final class AeroState implements PhysicsBridge.Publishable {
                 probe.clear();
                 double nudged = input(s, node, state, delta);
                 if (improved) {
-                    ImprovedAero.evaluate(s, v, w, r, nudged, weight, tuning, stalled[i], probe);
+                    ImprovedAero.evaluate(s, v, w, r, nudged, flap, weight, tuning, stalled[i], probe);
                 } else {
                     WariumAero.evaluate(s, v, w, r, nudged, weight, probe);
                 }
@@ -296,10 +300,25 @@ public final class AeroState implements PhysicsBridge.Publishable {
             state.pitch = moveTowards(state.pitch, node.pitch(), step);
             state.yaw = moveTowards(state.yaw, node.yaw(), step);
             state.roll = moveTowards(state.roll, node.roll(), step);
+            updateFlaps(state, node, worldVelocity.length(), dt);
             AutoTrim.update(state, node, worldVelocity, altitude, rotation, inertia, w, dt, improved && wingStalled);
         }
     }
 
+    /**
+     * Moves a node's flaps towards the angle its lever asks for. Above the setting's maximum speed the air pushes them
+     * back in, so a craft that is too fast for its flaps has them half retracted, and all the way at 25% more.
+     */
+    private static void updateFlaps(NodeState state, NodeData node, double speed, double dt) {
+        FlapSetting setting = FlapSetting.of(node.flapSetting());
+        double target = Math.toRadians(setting.degrees());
+        double limit = setting.maxSpeed();
+        if (speed > limit) {
+            target *= Math.max(0.0, 1.0 - (speed - limit) / (0.25 * limit));
+        }
+        state.flapAngle = moveTowards(state.flapAngle, target, Math.toRadians(Config.FLAP_SLEW_DEGREES.get()) * dt);
+    }
+
     static double moveTowards(double value, double target, double maxStep) {
         if (Math.abs(target - value) <= maxStep) {
             return target;

src/main/java/dev/lumareth/improvedAerodynamics/flight/AeroSurface.java

@@ -14,16 +14,17 @@ package dev.lumareth.improvedAerodynamics.flight;
  * @param brakeInput      air brakes only: Warium's input value, they ignore smoothing and trim
  * @param aspectRatio     span squared over area of the wing the block belongs to, 0 if not known yet
  * @param wingGroup       whether the wing the block belongs to contains WING blocks, not only control surfaces or stabilizers
+ * @param flap            whether the block was made a flap with shift-right-click, it then also follows its node's flap setting
  */
 public record AeroSurface(long key, SurfaceType type, boolean slab, double x, double y, double z, int facingX, int facingZ,
                           double pressure, double fluidFactor, double speedMultiplier,
                           long node, ControlAxis axis1, double multiplier1, ControlAxis axis2, double multiplier2,
-                          double brakeInput, double aspectRatio, boolean wingGroup) {
+                          double brakeInput, double aspectRatio, boolean wingGroup, boolean flap) {
     public static final long NO_NODE = Long.MIN_VALUE;
 
     AeroSurface withWingShape(double aspectRatio, boolean wingGroup) {
         return new AeroSurface(key, type, slab, x, y, z, facingX, facingZ, pressure, fluidFactor, speedMultiplier,
-                node, axis1, multiplier1, axis2, multiplier2, brakeInput, aspectRatio, wingGroup);
+                node, axis1, multiplier1, axis2, multiplier2, brakeInput, aspectRatio, wingGroup, flap);
     }
 
     /** Warium's "Direction.getClockWise(Axis.Y)" of the facing, the span direction of a horizontal surface. */

src/main/java/dev/lumareth/improvedAerodynamics/flight/AutoTrimToggle.java

@@ -46,7 +46,7 @@ public final class AutoTrimToggle {
      * The control node the seat under the player is linked to. Warium's control seat block finds its seat entity
      * within half a block of itself, so the seat block is at the entity's block or just below it.
      */
-    private static BlockEntity findNode(Level level, BlockPos seatPos) {
+    public static BlockEntity findNode(Level level, BlockPos seatPos) {
         for (BlockPos pos : new BlockPos[]{seatPos, seatPos.below()}) {
             BlockEntity seat = level.getBlockEntity(pos);
             if (seat == null || !seat.getPersistentData().contains("ControlX")) {

src/main/java/dev/lumareth/improvedAerodynamics/flight/FlapControl.java

@@ -0,0 +1,37 @@
+package dev.lumareth.improvedAerodynamics.flight;
+
+import net.mcreator.valkyrienwarium.entity.SeatEntityEntity;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.level.block.entity.BlockEntity;
+
+/** Server side of the flap keys: moves the flap lever of the control node the pilot's seat is linked to. */
+public final class FlapControl {
+    private FlapControl() {
+    }
+
+    /** @param step +1 for more flaps, -1 for fewer */
+    public static void step(ServerPlayer player, int step) {
+        Entity vehicle = player.getVehicle();
+        if (!(vehicle instanceof SeatEntityEntity)) {
+            player.displayClientMessage(Component.translatable("message.improved_aerodynamics.flaps.no_seat"), true);
+            return;
+        }
+        BlockEntity node = AutoTrimToggle.findNode(vehicle.level(), vehicle.blockPosition());
+        if (node == null) {
+            player.displayClientMessage(Component.translatable("message.improved_aerodynamics.flaps.no_node"), true);
+            return;
+        }
+        CompoundTag tag = node.getPersistentData();
+        int current = FlapSetting.of(tag.getInt(WariumCapture.FLAP_SETTING_TAG)).ordinal();
+        int next = Math.max(0, Math.min(FlapSetting.values().length - 1, current + (step > 0 ? 1 : -1)));
+        if (next != current) {
+            tag.putInt(WariumCapture.FLAP_SETTING_TAG, next);
+            node.setChanged();
+        }
+        player.displayClientMessage(Component.translatable("message.improved_aerodynamics.flaps",
+                Component.translatable(FlapSetting.of(next).translationKey())), true);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/flight/FlapInteraction.java

@@ -0,0 +1,66 @@
+package dev.lumareth.improvedAerodynamics.flight;
+
+import dev.lumareth.improvedAerodynamics.ImprovedAerodynamics;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.InteractionHand;
+import net.minecraft.world.InteractionResult;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraftforge.event.entity.player.PlayerInteractEvent;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+
+/**
+ * Shift-right-click on a block in the {@code improved_aerodynamics:flappable} tag (Warium's horizontal control
+ * surfaces) with empty hands makes it a flap, or a normal control surface again. A flap follows the flap lever of the
+ * control node it is linked to, on top of the pilot's input.
+ */
+public final class FlapInteraction {
+    public static final TagKey<Block> FLAPPABLE = TagKey.create(Registries.BLOCK,
+            new ResourceLocation(ImprovedAerodynamics.MOD_ID, "flappable"));
+
+    private FlapInteraction() {
+    }
+
+    @SubscribeEvent
+    public static void onRightClickBlock(PlayerInteractEvent.RightClickBlock event) {
+        Player player = event.getEntity();
+        if (event.getHand() != InteractionHand.MAIN_HAND || !player.isShiftKeyDown() || player.isPassenger()
+                || !player.getMainHandItem().isEmpty() || !player.getOffhandItem().isEmpty()) {
+            return;
+        }
+        Level level = event.getLevel();
+        BlockPos pos = event.getPos();
+        BlockState state = level.getBlockState(pos);
+        if (!state.is(FLAPPABLE)) {
+            return;
+        }
+        // Handled on both sides so the block's own right-click action does not run on either
+        event.setCanceled(true);
+        event.setCancellationResult(InteractionResult.sidedSuccess(level.isClientSide));
+        if (level.isClientSide) {
+            return;
+        }
+        BlockEntity blockEntity = level.getBlockEntity(pos);
+        if (blockEntity == null) {
+            return;
+        }
+        CompoundTag tag = blockEntity.getPersistentData();
+        boolean flap = !tag.getBoolean(WariumCapture.FLAP_TAG);
+        tag.putBoolean(WariumCapture.FLAP_TAG, flap);
+        blockEntity.setChanged();
+        if (flap && !tag.contains("ControlX")) {
+            player.displayClientMessage(Component.translatable("message.improved_aerodynamics.flap.unlinked"), true);
+        } else {
+            player.displayClientMessage(Component.translatable(flap
+                    ? "message.improved_aerodynamics.flap.on" : "message.improved_aerodynamics.flap.off"), true);
+        }
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/flight/FlapSetting.java

@@ -0,0 +1,38 @@
+package dev.lumareth.improvedAerodynamics.flight;
+
+import dev.lumareth.improvedAerodynamics.Config;
+
+/** Positions of a control node's flap lever. */
+public enum FlapSetting {
+    UP,
+    TAKEOFF,
+    LANDING;
+
+    /** The setting for a stored number, UP for anything that is not one. */
+    public static FlapSetting of(int ordinal) {
+        FlapSetting[] values = values();
+        return ordinal >= 0 && ordinal < values.length ? values[ordinal] : UP;
+    }
+
+    /** Deflection in degrees the flaps move to at this setting. */
+    double degrees() {
+        return switch (this) {
+            case UP -> 0.0;
+            case TAKEOFF -> Config.FLAP_TAKEOFF_DEGREES.get();
+            case LANDING -> Config.FLAP_LANDING_DEGREES.get();
+        };
+    }
+
+    /** Airspeed in blocks per second above which the air starts to push the flaps back in. Infinite when they are up. */
+    double maxSpeed() {
+        return switch (this) {
+            case UP -> Double.POSITIVE_INFINITY;
+            case TAKEOFF -> Config.FLAP_TAKEOFF_MAX_SPEED.get();
+            case LANDING -> Config.FLAP_LANDING_MAX_SPEED.get();
+        };
+    }
+
+    public String translationKey() {
+        return "message.improved_aerodynamics.flaps." + name().toLowerCase(java.util.Locale.ROOT);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/flight/ImprovedAero.java

@@ -27,6 +27,12 @@ final class ImprovedAero {
     private static final double MAX_DEFLECTION = Math.toRadians(20.0);
     // Share of the deflection that acts as angle of attack, gives Warium's control authority at the design speed
     private static final double FLAP_EFFECTIVENESS = 0.75;
+    // How much of the lift a flap adds raises the stall angle, and the parasitic drag coefficient per radian² of flap
+    // Share of the flap's deflection that acts as angle of attack: 35 degrees of landing flap adds about 1.1 to the
+    // lift coefficient, like a real plain or slotted flap
+    private static final double FLAP_ALPHA_FACTOR = 0.4;
+    private static final double FLAP_STALL_GAIN = 0.7;
+    private static final double FLAP_DRAG = 0.35;
     // Angle of attack of a level cambered wing, where K is calibrated
     private static final double REFERENCE_ANGLE = Math.toRadians(4.0);
     private static final double REFERENCE_SPEED = 40.0;
@@ -62,10 +68,11 @@ final class ImprovedAero {
      * @param w       ship angular velocity, ship axes
      * @param r       block center relative to the center of mass, ship axes
      * @param input   control input of the surface, -1 to 1
+     * @param flap    flap deflection in radians, 0 for surfaces that are not flaps
      * @param stalled whether the surface was stalled in the previous substep
      * @return whether the surface is stalled now
      */
-    static boolean evaluate(AeroSurface s, double[] v, double[] w, double[] r, double input, double weight,
+    static boolean evaluate(AeroSurface s, double[] v, double[] w, double[] r, double input, double flap, double weight,
                             Tuning tuning, boolean stalled, Wrench out) {
         // Airflow at the block: ship velocity plus w x r
         double vx = v[0] + w[1] * r[2] - w[2] * r[1];
@@ -114,6 +121,10 @@ final class ImprovedAero {
             // Same sign convention as Warium: positive input pushes along n while moving against the facing
             alpha += FLAP_EFFECTIVENESS * MAX_DEFLECTION * input * (u <= 0.0 ? 1.0 : -1.0);
         }
+        // A flap bends the airfoil's camber whichever way the air comes, so it always adds lift, and it moves the stall
+        // up with it: a flap raises the highest lift a wing can make
+        double flapShift = FLAP_ALPHA_FACTOR * flap;
+        alpha += flapShift;
         alpha = Math.max(-Math.PI / 2.0, Math.min(Math.PI / 2.0, alpha));
 
         // Low aspect ratio wings keep their flow attached longer thanks to leading-edge vortices. Control surfaces
@@ -124,6 +135,9 @@ final class ImprovedAero {
                 : s.wingGroup() && s.type().controllable ? SurfaceType.WING.stallAngle : s.type().stallAngle;
         double critical = Math.toRadians(baseStall) * (1.0 + tuning.vortexStallBonus() * vortexFactor) * tuning.stallAngleScale();
         double absAlpha = Math.abs(alpha);
+        if (alpha >= 0.0) {
+            critical += FLAP_STALL_GAIN * flapShift;
+        }
         // Flips only where both blends agree, so the hysteresis never makes the force jump
         if (!stalled && absAlpha > critical + STALL_BLEND) {
             stalled = true;
@@ -156,7 +170,7 @@ final class ImprovedAero {
         double dy = -(vn * ny) / planeSpeed;
         double dz = -(u * cz + vn * nz) / planeSpeed;
         double liftForce = q * lift * tuning.liftScale();
-        double dragForce = q * drag / m;
+        double dragForce = q * (drag + FLAP_DRAG * flap * flap) / m;
         out.addForce(r, lx * liftForce + dx * dragForce, ly * liftForce + dy * dragForce, lz * liftForce + dz * dragForce);
         return stalled;
     }

src/main/java/dev/lumareth/improvedAerodynamics/flight/MixinPlugin.java

@@ -18,7 +18,7 @@ import java.util.Set;
  */
 public final class MixinPlugin implements IMixinConfigPlugin {
     private static final Logger LOGGER = LoggerFactory.getLogger("improved_aerodynamics");
-    private static final String WARIUM_VERSION = "1.1.6";
+    private static final String WARIUM_VERSION = "1.1.7";
     private static final String FUTURISM_VERSION = "0.0.4";
 
     private boolean warium;

src/main/java/dev/lumareth/improvedAerodynamics/flight/NodeData.java

@@ -5,6 +5,7 @@ package dev.lumareth.improvedAerodynamics.flight;
  * trim state.
  *
  * @param storedTrim trim saved in the node, used when the physics thread first sees the node
+ * @param flapSetting the node's flap lever, see {@link FlapSetting#ordinal()}
  */
-public record NodeData(long key, double pitch, double yaw, double roll, double throttle, boolean autoTrim, double storedTrim) {
+public record NodeData(long key, double pitch, double yaw, double roll, double throttle, boolean autoTrim, double storedTrim, int flapSetting) {
 }

src/main/java/dev/lumareth/improvedAerodynamics/flight/WariumAero.java

@@ -1,7 +1,7 @@
 package dev.lumareth.improvedAerodynamics.flight;
 
 /**
- * Warium VS 1.1.6's aerodynamic forces, term for term as its block procedures compute them, but evaluated from the
+ * Warium VS 1.1.7's aerodynamic forces, term for term as its block procedures compute them, but evaluated from the
  * ship's current motion. Like in Warium every block uses the velocity of the ship's center of mass. The procedures'
  * conditions (air around the block, minimum speed, linked control node) were already checked on the server thread.
  * Quirks are kept on purpose so craft fly exactly as before: vertical wings have no drag (Warium never sets the
@@ -31,7 +31,8 @@ final class WariumAero {
         switch (s.type()) {
             case WING -> {
                 out.addForce(r, 0.0, v[1] * Math.abs(v[1]) * -45.0 * p / m, 0.0);
-                out.addForce(r, 0.0, Math.abs(fx * v[0] + fz * v[2]) * 160.0 * p, 0.0);
+                // Lift follows the horizontal speed whichever way the wing faces
+                out.addForce(r, 0.0, Math.hypot(v[0], v[2]) * 160.0 * p, 0.0);
                 double damping = speed * 600.0 * p / m;
                 out.addTorque(-w[0] * damping, -0.1 * w[1] * damping, -w[2] * damping);
                 double drag = -speed * p / m;

src/main/java/dev/lumareth/improvedAerodynamics/flight/WariumCapture.java

@@ -31,6 +31,9 @@ import org.valkyrienskies.mod.common.VSGameUtilsKt;
 public final class WariumCapture {
     public static final String AUTO_TRIM_TAG = "improved_aerodynamics_autotrim";
     public static final String TRIM_TAG = "improved_aerodynamics_trim";
+    /** Block entity flag of a surface that is a flap, and the flap lever of a control node. */
+    public static final String FLAP_TAG = "improved_aerodynamics_flap";
+    public static final String FLAP_SETTING_TAG = "improved_aerodynamics_flap_setting";
     private static final int TRIM_SAVE_INTERVAL = 20;
 
     // The procedure currently running, procedures run one at a time on the server thread
@@ -77,10 +80,12 @@ public final class WariumCapture {
         String key = "Null";
         String key2 = "Null";
         double brakeInput = 0.0;
+        boolean flap = false;
         if (type.controllable || type == SurfaceType.AIR_BRAKE) {
             BlockEntity blockEntity = level.getBlockEntity(pos);
             if (blockEntity != null) {
                 CompoundTag tag = blockEntity.getPersistentData();
+                flap = type == SurfaceType.CONTROL_SURFACE && tag.getBoolean(FLAP_TAG);
                 key = tag.getString("Key");
                 key2 = type == SurfaceType.AIR_BRAKE ? "Null" : tag.getString("Key2");
                 BlockPos nodePos = BlockPos.containing(tag.getDouble("ControlX"), tag.getDouble("ControlY"), tag.getDouble("ControlZ"));
@@ -97,7 +102,7 @@ public final class WariumCapture {
         return new AeroSurface(pos.asLong(), type, slab, pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5,
                 facing.getStepX(), facing.getStepZ(), pressure, fluidFactor(level), speedMultiplier,
                 node, ControlAxis.of(key), ControlAxis.multiplier(key), ControlAxis.of(key2), ControlAxis.multiplier(key2),
-                brakeInput, 0.0, false);
+                brakeInput, 0.0, false, flap);
     }
 
     /** Registers a node's inputs once per tick, and saves its trim to it now and then so it survives reloading. */
@@ -119,7 +124,8 @@ public final class WariumCapture {
             }
         }
         aero.addNode(new NodeData(nodeKey, tag.getDouble("Pitch"), tag.getDouble("Yaw"), tag.getDouble("Roll"),
-                tag.getDouble("Throttle"), autoTrim, storedTrim));
+                tag.getDouble("Throttle"), autoTrim, storedTrim,
+                FlapSetting.of(tag.getInt(FLAP_SETTING_TAG)).ordinal()));
     }
 
     /** Raw node value for a key like "Pitch+", as Warium's air brakes read it. */

src/main/java/dev/lumareth/improvedAerodynamics/flight/mixin/warium/BypassedCompressorScriptProcedureMixin.java

@@ -0,0 +1,33 @@
+package dev.lumareth.improvedAerodynamics.flight.mixin.warium;
+
+import dev.lumareth.improvedAerodynamics.exhaust.ImprovedExhaust;
+import net.mcreator.valkyrienwarium.procedures.BypassedCompressorScriptProcedure;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.level.LevelAccessor;
+import net.minecraft.world.level.block.state.BlockState;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+/** The improved exhaust style for the medium bypassed compressor, whose jet effect is an exhaust too: no effect entity, the flame of this mod, see {@link ImprovedExhaust}. */
+@Mixin(value = BypassedCompressorScriptProcedure.class, remap = false)
+public abstract class BypassedCompressorScriptProcedureMixin {
+    @Inject(method = "execute", at = @At("HEAD"))
+    private static void improvedAerodynamics$begin(LevelAccessor world, double x, double y, double z, BlockState blockstate, CallbackInfo ci) {
+        ImprovedExhaust.begin();
+    }
+
+    @Redirect(method = "execute", at = @At(value = "INVOKE",
+            target = "Lnet/minecraft/server/level/ServerLevel;m_7967_(Lnet/minecraft/world/entity/Entity;)Z"))
+    private static boolean improvedAerodynamics$addEffect(ServerLevel level, Entity entity) {
+        return ImprovedExhaust.addEffectEntity(level, entity);
+    }
+
+    @Inject(method = "execute", at = @At("TAIL"))
+    private static void improvedAerodynamics$plume(LevelAccessor world, double x, double y, double z, BlockState blockstate, CallbackInfo ci) {
+        ImprovedExhaust.plume(world, x, y, z, blockstate);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/flight/mixin/warium/JetExhaustOnTickUpdateProcedureMixin.java

@@ -0,0 +1,33 @@
+package dev.lumareth.improvedAerodynamics.flight.mixin.warium;
+
+import dev.lumareth.improvedAerodynamics.exhaust.ImprovedExhaust;
+import net.mcreator.valkyrienwarium.procedures.JetExhaustOnTickUpdateProcedure;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.level.LevelAccessor;
+import net.minecraft.world.level.block.state.BlockState;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+/** The improved exhaust style: no effect entities, a bigger particle plume, see {@link ImprovedExhaust}. */
+@Mixin(value = JetExhaustOnTickUpdateProcedure.class, remap = false)
+public abstract class JetExhaustOnTickUpdateProcedureMixin {
+    @Inject(method = "execute", at = @At("HEAD"))
+    private static void improvedAerodynamics$begin(LevelAccessor world, double x, double y, double z, BlockState blockstate, CallbackInfo ci) {
+        ImprovedExhaust.begin();
+    }
+
+    @Redirect(method = "execute", at = @At(value = "INVOKE",
+            target = "Lnet/minecraft/server/level/ServerLevel;m_7967_(Lnet/minecraft/world/entity/Entity;)Z"))
+    private static boolean improvedAerodynamics$addEffect(ServerLevel level, Entity entity) {
+        return ImprovedExhaust.addEffectEntity(level, entity);
+    }
+
+    @Inject(method = "execute", at = @At("TAIL"))
+    private static void improvedAerodynamics$plume(LevelAccessor world, double x, double y, double z, BlockState blockstate, CallbackInfo ci) {
+        ImprovedExhaust.plume(world, x, y, z, blockstate);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/flight/mixin/warium/VTOLExhaustTickProcedureMixin.java

@@ -0,0 +1,33 @@
+package dev.lumareth.improvedAerodynamics.flight.mixin.warium;
+
+import dev.lumareth.improvedAerodynamics.exhaust.ImprovedExhaust;
+import net.mcreator.valkyrienwarium.procedures.VTOLExhaustTickProcedure;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.level.LevelAccessor;
+import net.minecraft.world.level.block.state.BlockState;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+/** The improved exhaust style for the VTOL exhaust: no effect entity, the flame of this mod, see {@link ImprovedExhaust}. */
+@Mixin(value = VTOLExhaustTickProcedure.class, remap = false)
+public abstract class VTOLExhaustTickProcedureMixin {
+    @Inject(method = "execute", at = @At("HEAD"))
+    private static void improvedAerodynamics$begin(LevelAccessor world, double x, double y, double z, BlockState blockstate, CallbackInfo ci) {
+        ImprovedExhaust.begin();
+    }
+
+    @Redirect(method = "execute", at = @At(value = "INVOKE",
+            target = "Lnet/minecraft/server/level/ServerLevel;m_7967_(Lnet/minecraft/world/entity/Entity;)Z"))
+    private static boolean improvedAerodynamics$addEffect(ServerLevel level, Entity entity) {
+        return ImprovedExhaust.addEffectEntity(level, entity);
+    }
+
+    @Inject(method = "execute", at = @At("TAIL"))
+    private static void improvedAerodynamics$plume(LevelAccessor world, double x, double y, double z, BlockState blockstate, CallbackInfo ci) {
+        ImprovedExhaust.plume(world, x, y, z, blockstate);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/network/ExhaustPacket.java

@@ -0,0 +1,39 @@
+package dev.lumareth.improvedAerodynamics.network;
+
+import dev.lumareth.improvedAerodynamics.exhaust.client.ExhaustFlames;
+import net.minecraft.core.BlockPos;
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.world.phys.Vec3;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.fml.DistExecutor;
+import net.minecraftforge.network.NetworkEvent;
+
+import java.util.function.Supplier;
+
+/**
+ * One jet exhaust that burns right now, sent to the players near it every few ticks: where the flame starts and which
+ * way it points, in the coordinates of the block, which are ship coordinates on a ship. The offset is relative to the
+ * block because ship coordinates are far out, where floats are too coarse.
+ *
+ * @param intensity 0 to 100
+ */
+public record ExhaustPacket(BlockPos pos, Vec3 exitOffset, Vec3 direction, int intensity, boolean afterburner) {
+    public void encode(FriendlyByteBuf buffer) {
+        buffer.writeBlockPos(pos);
+        buffer.writeFloat((float) exitOffset.x).writeFloat((float) exitOffset.y).writeFloat((float) exitOffset.z);
+        buffer.writeFloat((float) direction.x).writeFloat((float) direction.y).writeFloat((float) direction.z);
+        buffer.writeByte(intensity);
+        buffer.writeBoolean(afterburner);
+    }
+
+    public static ExhaustPacket decode(FriendlyByteBuf buffer) {
+        BlockPos pos = buffer.readBlockPos();
+        Vec3 exit = new Vec3(buffer.readFloat(), buffer.readFloat(), buffer.readFloat());
+        Vec3 direction = new Vec3(buffer.readFloat(), buffer.readFloat(), buffer.readFloat());
+        return new ExhaustPacket(pos, exit, direction, buffer.readByte(), buffer.readBoolean());
+    }
+
+    public void handle(Supplier<NetworkEvent.Context> context) {
+        DistExecutor.unsafeRunWhenOn(Dist.CLIENT, () -> () -> ExhaustFlames.accept(this));
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/network/FlapPacket.java

@@ -0,0 +1,33 @@
+package dev.lumareth.improvedAerodynamics.network;
+
+import dev.lumareth.improvedAerodynamics.flight.FlapControl;
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraftforge.fml.ModList;
+import net.minecraftforge.network.NetworkEvent;
+
+import java.util.function.Supplier;
+
+/** Sent when a pilot moves the flap lever: more flaps (true) or fewer. */
+public final class FlapPacket {
+    private final boolean extend;
+
+    public FlapPacket(boolean extend) {
+        this.extend = extend;
+    }
+
+    public void encode(FriendlyByteBuf buffer) {
+        buffer.writeBoolean(extend);
+    }
+
+    public static FlapPacket decode(FriendlyByteBuf buffer) {
+        return new FlapPacket(buffer.readBoolean());
+    }
+
+    public void handle(Supplier<NetworkEvent.Context> context) {
+        ServerPlayer player = context.get().getSender();
+        if (player != null && ModList.get().isLoaded("valkyrien_warium")) {
+            FlapControl.step(player, extend ? 1 : -1);
+        }
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/network/Network.java

@@ -23,5 +23,21 @@ public final class Network {
                 .decoder(ToggleAutoTrimPacket::decode)
                 .consumerMainThread(ToggleAutoTrimPacket::handle)
                 .add();
+        CHANNEL.messageBuilder(ToggleAfterburnerPacket.class, 1, NetworkDirection.PLAY_TO_SERVER)
+                .encoder(ToggleAfterburnerPacket::encode)
+                .decoder(ToggleAfterburnerPacket::decode)
+                .consumerMainThread(ToggleAfterburnerPacket::handle)
+                .add();
+        CHANNEL.messageBuilder(ExhaustPacket.class, 2, NetworkDirection.PLAY_TO_CLIENT)
+                .encoder(ExhaustPacket::encode)
+                .decoder(ExhaustPacket::decode)
+                .consumerMainThread(ExhaustPacket::handle)
+                .add();
+        // Higher id than the neighbours so it does not collide with packets added on other branches
+        CHANNEL.messageBuilder(FlapPacket.class, 10, NetworkDirection.PLAY_TO_SERVER)
+                .encoder(FlapPacket::encode)
+                .decoder(FlapPacket::decode)
+                .consumerMainThread(FlapPacket::handle)
+                .add();
     }
 }

src/main/java/dev/lumareth/improvedAerodynamics/network/ToggleAfterburnerPacket.java

@@ -0,0 +1,26 @@
+package dev.lumareth.improvedAerodynamics.network;
+
+import dev.lumareth.improvedAerodynamics.exhaust.AfterburnerToggle;
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraftforge.fml.ModList;
+import net.minecraftforge.network.NetworkEvent;
+
+import java.util.function.Supplier;
+
+/** Sent when a player presses the afterburner key, toggles the afterburner on the control node of the seat they sit in. */
+public final class ToggleAfterburnerPacket {
+    public void encode(FriendlyByteBuf buffer) {
+    }
+
+    public static ToggleAfterburnerPacket decode(FriendlyByteBuf buffer) {
+        return new ToggleAfterburnerPacket();
+    }
+
+    public void handle(Supplier<NetworkEvent.Context> context) {
+        ServerPlayer player = context.get().getSender();
+        if (player != null && ModList.get().isLoaded("valkyrien_warium")) {
+            AfterburnerToggle.toggle(player);
+        }
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/terrain/AirCeiling.java

@@ -0,0 +1,95 @@
+package dev.lumareth.improvedAerodynamics.terrain;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.level.ChunkPos;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.chunk.ChunkAccess;
+import net.minecraft.world.level.saveddata.SavedData;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.OptionalInt;
+
+/**
+ * Per dimension, the height above which terrain is known to be air, measured from one real chunk with
+ * {@code /aero seedgen}. The air placeholder hands VS only air above it, which beats the noise based estimate in
+ * worlds where that does not work, like flat or void worlds. Saved with the world.
+ */
+public final class AirCeiling extends SavedData {
+    private static final String NAME = "improved_aerodynamics_air_ceilings";
+    /** The blocks that are read, clamped to the dimension's build height. */
+    public static final int SCAN_MIN_Y = -64;
+    public static final int SCAN_MAX_Y = 100;
+
+    /** Outcome of reading a chunk. */
+    public record Analysis(boolean complete, int highestSolid, int airHeight) {
+    }
+
+    private final Map<ResourceLocation, Integer> ceilings = new HashMap<>();
+
+    public static AirCeiling get(ServerLevel level) {
+        return level.getServer().overworld().getDataStorage().computeIfAbsent(AirCeiling::load, AirCeiling::new, NAME);
+    }
+
+    private static AirCeiling load(CompoundTag tag) {
+        AirCeiling ceiling = new AirCeiling();
+        CompoundTag saved = tag.getCompound("ceilings");
+        for (String key : saved.getAllKeys()) {
+            ceiling.ceilings.put(new ResourceLocation(key), saved.getInt(key));
+        }
+        return ceiling;
+    }
+
+    @Override
+    public CompoundTag save(CompoundTag tag) {
+        CompoundTag saved = new CompoundTag();
+        ceilings.forEach((dimension, height) -> saved.putInt(dimension.toString(), height));
+        tag.put("ceilings", saved);
+        return tag;
+    }
+
+    /** Lowest Y at or above which this dimension has only air, if it was measured. */
+    public OptionalInt ceiling(ResourceKey<Level> dimension) {
+        Integer height = ceilings.get(dimension.location());
+        return height != null ? OptionalInt.of(height) : OptionalInt.empty();
+    }
+
+    public void set(ResourceKey<Level> dimension, int height) {
+        ceilings.put(dimension.location(), height);
+        setDirty();
+    }
+
+    public boolean clear(ResourceKey<Level> dimension) {
+        boolean removed = ceilings.remove(dimension.location()) != null;
+        if (removed) {
+            setDirty();
+        }
+        return removed;
+    }
+
+    /**
+     * Reads the chunk's blocks (generating the chunk if it does not exist yet) from the top of the scan range down
+     * and finds the first layer with anything but air in it. Not complete if that layer is the top of the range,
+     * since then the air may start higher up than what was read.
+     */
+    public static Analysis analyze(ServerLevel level, ChunkPos pos) {
+        ChunkAccess chunk = level.getChunk(pos.x, pos.z);
+        int bottom = Math.max(SCAN_MIN_Y, level.getMinBuildHeight());
+        int top = Math.min(SCAN_MAX_Y, level.getMaxBuildHeight() - 1);
+        BlockPos.MutableBlockPos cursor = new BlockPos.MutableBlockPos();
+        for (int y = top; y >= bottom; y--) {
+            for (int x = 0; x < 16; x++) {
+                for (int z = 0; z < 16; z++) {
+                    if (!chunk.getBlockState(cursor.set(pos.getMinBlockX() + x, y, pos.getMinBlockZ() + z)).isAir()) {
+                        return new Analysis(y < top, y, y + 1);
+                    }
+                }
+            }
+        }
+        return new Analysis(true, bottom - 1, bottom);
+    }
+}

src/main/java/dev/lumareth/improvedAerodynamics/terrain/AirPlaceholder.java

@@ -22,11 +22,13 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.OptionalInt;
 
 /**
  * Optional: hands VS empty sections for not yet loaded chunks on a ship's path, so physics sees air there instead of
  * its solid "unloaded" fallback. Only sections fully above the generator's estimated surface (plus a margin) are
  * replaced, everything lower stays solid so a ship can never end up inside terrain that has not loaded yet.
+ * If a height was measured with /aero seedgen, every section from there up is replaced instead.
  * Once the real chunk loads, VS overwrites every section of it with the actual terrain.
  * <p>
  * This uses VS internals (its terrain update API and the mixin field listing its loaded chunks), so it switches
@@ -76,6 +78,8 @@ final class AirPlaceholder {
         if (enabled) {
             int budget = Config.MAX_NEW_CHUNKS_PER_TICK.get();
             int surfaceMargin = Config.PLACEHOLDER_SURFACE_MARGIN.get();
+            // Measured with /aero seedgen, replaces the estimate (and its margin) for this dimension
+            OptionalInt airHeight = AirCeiling.get(level).ceiling(level.dimension());
             for (long chunk : corridor) {
                 Placeholder placeholder = placeholders.get(chunk);
                 if (placeholder != null) {
@@ -90,7 +94,8 @@ final class AirPlaceholder {
                 if (budget-- <= 0) {
                     break;
                 }
-                int minSectionY = Math.floorDiv(estimateSurface(level, pos) + surfaceMargin, 16) + 1;
+                int minSectionY = airHeight.isPresent() ? Math.floorDiv(airHeight.getAsInt() + 15, 16)
+                        : Math.floorDiv(estimateSurface(level, pos) + surfaceMargin, 16) + 1;
                 int maxSectionY = level.getMaxSection() - 1;
                 if (minSectionY > maxSectionY) {
                     continue;

src/main/resources/META-INF/mods.toml

@@ -45,3 +45,11 @@ mandatory = false
 versionRange = "[0.0.4,)"
 ordering = "AFTER"
 side = "BOTH"
+
+# Optional, animated block models
+[[dependencies."${mod_id}"]]
+modId = "azurelib"
+mandatory = false
+versionRange = "[3.2.7,)"
+ordering = "AFTER"
+side = "BOTH"

src/main/resources/assets/improved_aerodynamics/animations/blockentities/nozzle.animation.json

@@ -0,0 +1,8 @@
+{
+	"format_version": "1.8.0",
+	"animations": {
+		"animation.model.nozzle": {
+			"loop": true
+		}
+	}
+}

src/main/resources/assets/improved_aerodynamics/blockstates/vectored_afterburner_nozzle.json

@@ -0,0 +1,7 @@
+{
+  "variants": {
+    "": {
+      "model": "improved_aerodynamics:block/vectored_afterburner_nozzle"
+    }
+  }
+}

src/main/resources/assets/improved_aerodynamics/geo/blockentities/vectored_afterburner_nozzle.geo.json

@@ -0,0 +1,113 @@
+{
+	"format_version": "1.21.20",
+	"minecraft:geometry": [
+		{
+			"description": {
+				"identifier": "geometry.unknown",
+				"texture_width": 16,
+				"texture_height": 16,
+				"visible_bounds_width": 3,
+				"visible_bounds_height": 2.5,
+				"visible_bounds_offset": [0, 0.75, 0]
+			},
+			"bones": [
+				{
+					"name": "bb_main",
+					"pivot": [0, 0, 0],
+					"cubes": [
+						{
+							"origin": [-16, 0, 10],
+							"size": [16, 16, 6],
+							"uv": {
+								"north": {"uv": [1.5, 1.5], "uv_size": [4, 4]},
+								"east": {"uv": [0, 1.5], "uv_size": [1.5, 4]},
+								"south": {"uv": [7, 1.5], "uv_size": [4, 4]},
+								"west": {"uv": [5.5, 1.5], "uv_size": [1.5, 4]},
+								"up": {"uv": [1.5, 0], "uv_size": [4, 1.5]},
+								"down": {"uv": [5.5, 1.5], "uv_size": [4, -1.5]}
+							}
+						}
+					]
+				},
+				{
+					"name": "hinge",
+					"pivot": [-8, 8, 10],
+					"rotation": [0, 0, 32.5]
+				},
+				{
+					"name": "rotation",
+					"parent": "hinge",
+					"pivot": [-8, 8, 10]
+				},
+				{
+					"name": "counter",
+					"parent": "rotation",
+					"pivot": [-8, 8, 10],
+					"rotation": [0, 0, -32.5],
+					"cubes": [
+						{
+							"origin": [-15, 1, 0],
+							"size": [14, 2, 10],
+							"uv": {
+								"north": {"uv": [2.5, 8], "uv_size": [3.5, 0.5]},
+								"east": {"uv": [0, 8], "uv_size": [2.5, 0.5]},
+								"south": {"uv": [8.5, 8], "uv_size": [3.5, 0.5]},
+								"west": {"uv": [6, 8], "uv_size": [2.5, 0.5]},
+								"up": {"uv": [2.5, 5.5], "uv_size": [3.5, 2.5]},
+								"down": {"uv": [6, 8], "uv_size": [3.5, -2.5]}
+							}
+						},
+						{
+							"origin": [-15, 13, 0],
+							"size": [14, 2, 10],
+							"uv": {
+								"north": {"uv": [6.5, 15.5], "uv_size": [3.5, 0.5]},
+								"east": {"uv": [4, 15.5], "uv_size": [2.5, 0.5]},
+								"south": {"uv": [12.5, 15.5], "uv_size": [3.5, 0.5]},
+								"west": {"uv": [10, 15.5], "uv_size": [2.5, 0.5]},
+								"up": {"uv": [6.5, 13], "uv_size": [3.5, 2.5]},
+								"down": {"uv": [10, 15.5], "uv_size": [3.5, -2.5]}
+							}
+						},
+						{
+							"origin": [-15, 3, 0],
+							"size": [2, 10, 10],
+							"uv": {
+								"north": {"uv": [2.5, 11], "uv_size": [0.5, 2.5]},
+								"east": {"uv": [0, 11], "uv_size": [2.5, 2.5]},
+								"south": {"uv": [5.5, 11], "uv_size": [0.5, 2.5]},
+								"west": {"uv": [3, 11], "uv_size": [2.5, 2.5]},
+								"up": {"uv": [2.5, 8.5], "uv_size": [0.5, 2.5]},
+								"down": {"uv": [3, 11], "uv_size": [0.5, -2.5]}
+							}
+						},
+						{
+							"origin": [-3, 3, 0],
+							"size": [2, 10, 10],
+							"uv": {
+								"north": {"uv": [3, 11], "uv_size": [-0.5, 2.5]},
+								"east": {"uv": [5.5, 11], "uv_size": [-2.5, 2.5]},
+								"south": {"uv": [6, 11], "uv_size": [-0.5, 2.5]},
+								"west": {"uv": [2.5, 11], "uv_size": [-2.5, 2.5]},
+								"up": {"uv": [3, 8.5], "uv_size": [-0.5, 2.5]},
+								"down": {"uv": [3.5, 11], "uv_size": [-0.5, -2.5]}
+							}
+						},
+						{
+							"origin": [-11, 5, 4],
+							"size": [6, 6, 6],
+							"uv": {
+								"north": {"uv": [7.5, 10], "uv_size": [1.5, 1.5]},
+								"east": {"uv": [6, 10], "uv_size": [1.5, 1.5]},
+								"south": {"uv": [10.5, 10], "uv_size": [1.5, 1.5]},
+								"west": {"uv": [9, 10], "uv_size": [1.5, 1.5]},
+								"up": {"uv": [7.5, 8.5], "uv_size": [1.5, 1.5]},
+								"down": {"uv": [9, 10], "uv_size": [1.5, -1.5]}
+							}
+						}
+					]
+				}
+			]
+		}
+	]
+}

src/main/resources/assets/improved_aerodynamics/lang/de_de.json

@@ -12,5 +12,26 @@
   "config.improved_aerodynamics.supersonicDrag": "Multiplikator für den Nullauftriebswiderstand bei vollem Überschall, ab Mach 1,3",
   "config.improved_aerodynamics.vortexLift": "Wirbelauftrieb: Flügel mit kleiner Streckung (Deltaflügel) überziehen später und liefern bei großen Anstellwinkeln mehr Auftrieb (verbessertes Flugmodell)",
   "config.improved_aerodynamics.vortexStallBonus": "Zusätzlicher Überziehwinkel der Flügel mit der kleinsten Streckung, als Anteil des normalen Überziehwinkels",
-  "config.improved_aerodynamics.vortexLiftStrength": "Multiplikator für den zusätzlichen Auftrieb der Vorderkantenwirbel"
+  "config.improved_aerodynamics.vortexLiftStrength": "Multiplikator für den zusätzlichen Auftrieb der Vorderkantenwirbel",
+  "block.improved_aerodynamics.vectored_afterburner_nozzle": "Schubvektor-Nachbrennerdüse",
+  "itemGroup.improved_aerodynamics": "Improved Aerodynamics",
+  "message.improved_aerodynamics.nozzle.left": "Düse auf linkes Triebwerk gestellt",
+  "message.improved_aerodynamics.nozzle.right": "Düse auf rechtes Triebwerk gestellt",
+  "key.improved_aerodynamics.toggle_afterburner": "Nachbrenner umschalten",
+  "message.improved_aerodynamics.afterburner.on": "Nachbrenner an",
+  "message.improved_aerodynamics.afterburner.off": "Nachbrenner aus",
+  "message.improved_aerodynamics.afterburner.throttle": "Der Nachbrenner braucht mindestens Schub %s",
+  "message.improved_aerodynamics.afterburner.no_seat": "Setz dich in einen Warium-Steuersitz, um den Nachbrenner zu nutzen",
+  "message.improved_aerodynamics.afterburner.no_node": "Dieser Sitz ist mit keinem Vehicle Control Node verbunden",
+  "key.improved_aerodynamics.flaps_down": "Klappen runter (eine Stufe)",
+  "key.improved_aerodynamics.flaps_up": "Klappen rauf (eine Stufe)",
+  "message.improved_aerodynamics.flaps": "Klappen: %s",
+  "message.improved_aerodynamics.flaps.up": "eingefahren",
+  "message.improved_aerodynamics.flaps.takeoff": "Start",
+  "message.improved_aerodynamics.flaps.landing": "Landung",
+  "message.improved_aerodynamics.flaps.no_seat": "Setz dich in einen Warium-Steuersitz, um die Klappen zu nutzen",
+  "message.improved_aerodynamics.flaps.no_node": "Dieser Sitz ist mit keinem Vehicle Control Node verbunden",
+  "message.improved_aerodynamics.flap.on": "Das Ruder ist jetzt eine Klappe",
+  "message.improved_aerodynamics.flap.off": "Das Ruder ist wieder ein normales Ruder",
+  "message.improved_aerodynamics.flap.unlinked": "Das Ruder ist jetzt eine Klappe, aber noch mit keinem Vehicle Control Node verbunden"
 }

src/main/resources/assets/improved_aerodynamics/lang/en_us.json

@@ -12,5 +12,26 @@
   "config.improved_aerodynamics.supersonicDrag": "Zero-lift drag multiplier once fully supersonic, from Mach 1.3",
   "config.improved_aerodynamics.vortexLift": "Vortex lift: low aspect ratio (delta) wings stall later and lift more at high angles of attack (improved flight model)",
   "config.improved_aerodynamics.vortexStallBonus": "Extra stall angle of the lowest aspect ratio wings, as a fraction of the normal stall angle",
-  "config.improved_aerodynamics.vortexLiftStrength": "Multiplier for the extra lift the leading-edge vortices make"
+  "config.improved_aerodynamics.vortexLiftStrength": "Multiplier for the extra lift the leading-edge vortices make",
+  "block.improved_aerodynamics.vectored_afterburner_nozzle": "Vectored Afterburner Nozzle",
+  "itemGroup.improved_aerodynamics": "Improved Aerodynamics",
+  "message.improved_aerodynamics.nozzle.left": "Nozzle set to left engine",
+  "message.improved_aerodynamics.nozzle.right": "Nozzle set to right engine",
+  "key.improved_aerodynamics.toggle_afterburner": "Toggle afterburner",
+  "message.improved_aerodynamics.afterburner.on": "Afterburner on",
+  "message.improved_aerodynamics.afterburner.off": "Afterburner off",
+  "message.improved_aerodynamics.afterburner.throttle": "The afterburner needs a throttle of at least %s",
+  "message.improved_aerodynamics.afterburner.no_seat": "Sit in a Warium control seat to use the afterburner",
+  "message.improved_aerodynamics.afterburner.no_node": "This seat is not linked to a vehicle control node",
+  "key.improved_aerodynamics.flaps_down": "Flaps down (one step)",
+  "key.improved_aerodynamics.flaps_up": "Flaps up (one step)",
+  "message.improved_aerodynamics.flaps": "Flaps: %s",
+  "message.improved_aerodynamics.flaps.up": "up",
+  "message.improved_aerodynamics.flaps.takeoff": "takeoff",
+  "message.improved_aerodynamics.flaps.landing": "landing",
+  "message.improved_aerodynamics.flaps.no_seat": "Sit in a Warium control seat to use the flaps",
+  "message.improved_aerodynamics.flaps.no_node": "This seat is not linked to a vehicle control node",
+  "message.improved_aerodynamics.flap.on": "Control surface is now a flap",
+  "message.improved_aerodynamics.flap.off": "Control surface is a normal control surface again",
+  "message.improved_aerodynamics.flap.unlinked": "Control surface is now a flap, but it is not linked to a vehicle control node yet"
 }

src/main/resources/assets/improved_aerodynamics/models/block/vectored_afterburner_nozzle.json

@@ -0,0 +1,5 @@
+{
+  "textures": {
+    "particle": "minecraft:block/iron_block"
+  }
+}

src/main/resources/assets/improved_aerodynamics/models/item/vectored_afterburner_nozzle.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:block/cube_all",
+  "textures": {
+    "all": "minecraft:block/iron_block"
+  }
+}

src/main/resources/data/improved_aerodynamics/loot_tables/blocks/vectored_afterburner_nozzle.json

@@ -0,0 +1,20 @@
+{
+  "type": "minecraft:block",
+  "pools": [
+    {
+      "rolls": 1.0,
+      "bonus_rolls": 0.0,
+      "entries": [
+        {
+          "type": "minecraft:item",
+          "name": "improved_aerodynamics:vectored_afterburner_nozzle"
+        }
+      ],
+      "conditions": [
+        {
+          "condition": "minecraft:survives_explosion"
+        }
+      ]
+    }
+  ]
+}

src/main/resources/data/improved_aerodynamics/tags/blocks/flappable.json

@@ -0,0 +1,221 @@
+{
+  "replace": false,
+  "values": [
+    {
+      "id": "valkyrien_warium:control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:control_surface_dark_gray",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:control_surface_offset_top_dark_gray",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:control_surface_offset_bottom_dark_gray",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:wooden_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:wooden_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:wooden_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:red_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:red_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:red_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:blue_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:blue_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:blue_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:brown_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:brown_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:brown_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:green_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:green_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:cyan_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:cyan_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:cyan_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:orange_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:orange_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:orange_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:yellow_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:yellow_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:yellow_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:gray_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:gray_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:gray_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:light_gray_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:light_gray_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:light_gray_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:light_blue_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:light_blue_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:light_blue_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:pink_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:pink_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:pink_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:magenta_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:magenta_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:magenta_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:purple_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:purple_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:purple_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:white_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:white_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:white_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:black_control_surface",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:black_control_surface_offset_top",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:black_control_surface_offset_bottom",
+      "required": false
+    },
+    {
+      "id": "valkyrien_warium:green_control_surface_offset_top",
+      "required": false
+    }
+  ]
+}

src/main/resources/data/improved_aerodynamics/vs_mass/improved_aerodynamics.json

@@ -0,0 +1,7 @@
+[
+  {
+    "block": "improved_aerodynamics:vectored_afterburner_nozzle",
+    "mass": 500.0,
+    "priority": 101
+  }
+]

src/main/resources/data/minecraft/tags/blocks/mineable/pickaxe.json

@@ -0,0 +1,6 @@
+{
+  "replace": false,
+  "values": [
+    "improved_aerodynamics:vectored_afterburner_nozzle"
+  ]
+}

src/main/resources/data/warium_vs/tags/blocks/blocksjet.json

@@ -0,0 +1,6 @@
+{
+  "replace": false,
+  "values": [
+    "improved_aerodynamics:vectored_afterburner_nozzle"
+  ]
+}

src/main/resources/data/warium_vs/tags/blocks/controllable.json

@@ -0,0 +1,6 @@
+{
+  "replace": false,
+  "values": [
+    "improved_aerodynamics:vectored_afterburner_nozzle"
+  ]
+}

src/main/resources/data/warium_vs/tags/blocks/doublecontrol.json

@@ -0,0 +1,6 @@
+{
+  "replace": false,
+  "values": [
+    "improved_aerodynamics:vectored_afterburner_nozzle"
+  ]
+}

src/main/resources/data/warium_vs/tags/blocks/unconfigurable.json

@@ -0,0 +1,9 @@
+{
+  "replace": false,
+  "values": [
+    { "id": "valkyrien_warium:slim_landing_gear_bay", "required": false },
+    { "id": "valkyrien_warium:open_slim_landing_gear_bay", "required": false },
+    { "id": "warframes:airframe_slim_landing_gear_bay", "required": false },
+    { "id": "warframes:airframe_slab_landing_gear_bay", "required": false }
+  ]
+}

src/main/resources/improved_aerodynamics.mixins.json

@@ -7,10 +7,13 @@
   "mixins": [
     "futurism.ForceInducedShipsMixin",
     "warium.AirBrakeTickProcedureMixin",
+    "warium.BypassedCompressorScriptProcedureMixin",
     "warium.ControlSurfaceTickProcedureMixin",
     "warium.ForceInducedShipsMixin",
     "warium.HorizontalStabilizerScriptProcedureMixin",
     "warium.HorizontalWingScriptProcedureMixin",
+    "warium.JetExhaustOnTickUpdateProcedureMixin",
+    "warium.VTOLExhaustTickProcedureMixin",
     "warium.VerticalAirBrakeTickProcedureMixin",
     "warium.VerticalControlSurfaceTickProcedureMixin",
     "warium.VerticalWingScriptProcedureMixin"