[1.20.x] [All] ElytraFly: Rocket Boost (#75)

Provide a brief description of the changes made in this PR:

- **What does this PR do?**
- Adds RocketBoost mode to ElytraFly module

---------

Co-authored-by: Edouard127 <46357922+Edouard127@users.noreply.github.com>
Co-authored-by: Blade-gl <bladecore.kt@gmail.com>
Co-authored-by: Constructor <fractalminds@protonmail.com>

Author: 4 people

common/src/main/java/com/lambda/mixin/entity/FireworkRocketEntityMixin.java

@@ -0,0 +1,24 @@
+package com.lambda.mixin.entity;
+
+import com.lambda.module.modules.movement.ElytraFly;
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.projectile.FireworkRocketEntity;
+import net.minecraft.util.math.Vec3d;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(FireworkRocketEntity.class)
+public class FireworkRocketEntityMixin {
+    @Redirect(
+            method = "tick",
+            at = @At(
+                    value = "INVOKE",
+                    target = "Lnet/minecraft/entity/LivingEntity;setVelocity(Lnet/minecraft/util/math/Vec3d;)V"
+            )
+    )
+    private void redirectSetVelocity(LivingEntity shooter, Vec3d vec3d) {
+        if (!ElytraFly.getDoBoost()) return;
+        ElytraFly.boostRocket(shooter);
+    }
+}

common/src/main/java/com/lambda/mixin/render/LivingEntityRendererMixin.java

@@ -34,7 +34,7 @@ private void injectRender(T livingEntity, float f, float g, MatrixStack matrixSt
         this.lambda$pitch = rotationPitch;
     }
 
-    @Redirect(method = "render(Lnet/minecraft/entity/LivingEntity;FFLnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/client/render/VertexConsumerProvider;I)V", at = @At(value = "INVOKE", target = "Lnet/minecraft/util/math/MathHelper;lerp(FFF)F", ordinal = 0))
+    @Redirect(method = "render(Lnet/minecraft/entity/LivingEntity;FFLnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/client/render/VertexConsumerProvider;I)V", at = @At(value = "INVOKE", target = "Lnet/minecraft/util/math/MathHelper;lerp(FFF)F", ordinal = 0), require = 0)
     private float injectRotationPitch(float g, float f, float s) {
         return Objects.requireNonNullElseGet(lambda$pitch, () -> MathHelper.lerp(g, f, s));
     }

common/src/main/kotlin/com/lambda/module/modules/movement/ElytraFly.kt

@@ -5,7 +5,9 @@ import com.lambda.event.events.MovementEvent
 import com.lambda.event.listener.SafeListener.Companion.listener
 import com.lambda.module.Module
 import com.lambda.module.tag.ModuleTag
+import com.lambda.threading.runSafe
 import com.lambda.util.player.MovementUtils.addSpeed
+import net.minecraft.entity.LivingEntity
 import net.minecraft.sound.SoundEvents
 
 object ElytraFly : Module(
@@ -14,19 +16,21 @@ object ElytraFly : Module(
     defaultTags = setOf(ModuleTag.MOVEMENT, ModuleTag.GRIM)
 ) {
     // private val page by setting("Page", Page.GENERAL) // Uncomment when needed
-    private val mode by setting("Mode", Mode.BOOST)
 
-    private val speed by setting("Speed", 0.02, 0.0..0.5, 0.005, description = "Speed to add when flying") { mode == Mode.BOOST }
+    private val playerBoost by setting("Player Boost", true, description = "Boosts the player when flying")
+    private val playerSpeed by setting("Player Speed", 0.02, 0.0..0.5, 0.005, description = "Speed to add when flying") { playerBoost }
+    private val rocketBoost by setting("Rocket Boost", false, description = "Boosts the player when using a firework")
+    private val rocketSpeed by setting("Rocket Speed", 2.0, 0.0 ..2.0, description = "Speed multiplier that the rocket gives you") { rocketBoost }
+
     private val mute by setting("Mute Elytra", false, "Mutes the elytra sound when gliding")
 
+    @JvmStatic
+    val doBoost: Boolean get() = isEnabled && playerBoost
+
     init {
         listener<MovementEvent.Pre> {
-            when (mode) {
-                Mode.BOOST -> {
-                    if (player.isFallFlying && !player.isUsingItem) {
-                        addSpeed(speed)
-                    }
-                }
+            if (playerBoost && player.isFallFlying && !player.isUsingItem) {
+                addSpeed(playerSpeed)
             }
         }
 
@@ -37,13 +41,27 @@ object ElytraFly : Module(
         }
     }
 
-    private enum class Page {
-        GENERAL,
-        // Add more when needed
+    @JvmStatic
+    fun boostRocket(shooter: LivingEntity) {
+        runSafe {
+            if (shooter != player) return@runSafe
+
+            val vec = player.rotationVector
+            val velocity = player.velocity
+
+            val d = 1.5 * rocketSpeed
+            val e = 0.1 * rocketSpeed
+
+            player.velocity = velocity.add(
+                vec.x * e + (vec.x * d - velocity.x) * 0.5,
+                vec.y * e + (vec.y * d - velocity.y) * 0.5,
+                vec.z * e + (vec.z * d - velocity.z) * 0.5
+            )
+        }
     }
 
-    enum class Mode {
-        BOOST,
+    private enum class Page {
+        GENERAL,
         // Add more when needed
     }
 }

common/src/main/resources/lambda.mixins.common.json

@@ -42,7 +42,8 @@
     "render.WorldRendererMixin",
     "world.BlockCollisionSpliteratorMixin",
     "world.ClientChunkManagerMixin",
-    "world.ClientWorldMixin"
+    "world.ClientWorldMixin",
+    "entity.FireworkRocketEntityMixin"
   ],
   "injectors": {
     "defaultRequire": 1