PaperMC/patches/server/0838-Add-a-consumer-parameter-to-ProjectileSource-launchP.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MelnCat <melncatuwu@gmail.com>
Date: Mon, 19 Sep 2022 14:16:10 -0700
Subject: [PATCH] Add a consumer parameter to ProjectileSource#launchProjectile


diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 3e79a73e42875936e373f797dcde6a60a904a880..c95534156a9c6a9b612c478e396b8cc5a77f7b08 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -508,8 +508,15 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
     }
 
     @Override
-    @SuppressWarnings("unchecked")
     public <T extends Projectile> T launchProjectile(Class<? extends T> projectile, Vector velocity) {
+        // Paper start - launchProjectile consumer
+        return this.launchProjectile(projectile, velocity, null);
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public <T extends Projectile> T launchProjectile(Class<? extends T> projectile, Vector velocity, java.util.function.Consumer<? super T> function) {
+        // Paper end - launchProjectile consumer
         Preconditions.checkState(!this.getHandle().generation, "Cannot launch projectile during world generation");
 
         net.minecraft.world.level.Level world = ((CraftWorld) this.getWorld()).getHandle();
@@ -596,6 +603,11 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
         if (velocity != null) {
             ((T) launch.getBukkitEntity()).setVelocity(velocity);
         }
+        // Paper start - launchProjectile consumer
+        if (function != null) {
+            function.accept((T) launch.getBukkitEntity());
+        }
+        // Paper end - launchProjectile consumer
 
         world.addFreshEntity(launch);
         return (T) launch.getBukkitEntity();
diff --git a/src/main/java/org/bukkit/craftbukkit/projectiles/CraftBlockProjectileSource.java b/src/main/java/org/bukkit/craftbukkit/projectiles/CraftBlockProjectileSource.java
index faab60e735aca230cb4c0b7db21e6a9a237daf6e..89401fc942c151941790b1152a35357aa51fcdba 100644
--- a/src/main/java/org/bukkit/craftbukkit/projectiles/CraftBlockProjectileSource.java
+++ b/src/main/java/org/bukkit/craftbukkit/projectiles/CraftBlockProjectileSource.java
@@ -55,6 +55,13 @@ public class CraftBlockProjectileSource implements BlockProjectileSource {
 
     @Override
     public <T extends Projectile> T launchProjectile(Class<? extends T> projectile, Vector velocity) {
+        // Paper start - launchProjectile consumer
+        return this.launchProjectile(projectile, velocity, null);
+    }
+
+    @Override
+    public <T extends Projectile> T launchProjectile(Class<? extends T> projectile, Vector velocity, java.util.function.Consumer<? super T> function) {
+        // Paper end - launchProjectile consumer
         Preconditions.checkArgument(this.getBlock().getType() == Material.DISPENSER, "Block is no longer dispenser");
         // Copied from BlockDispenser.dispense()
         BlockSource sourceblock = new BlockSource((ServerLevel) this.dispenserBlock.getLevel(), this.dispenserBlock.getBlockPos(), this.dispenserBlock.getBlockState(), this.dispenserBlock);
@@ -145,6 +152,11 @@ public class CraftBlockProjectileSource implements BlockProjectileSource {
         if (velocity != null) {
             ((T) launch.getBukkitEntity()).setVelocity(velocity);
         }
+        // Paper start
+        if (function != null) {
+            function.accept((T) launch.getBukkitEntity());
+        }
+        // Paper end
 
         world.addFreshEntity(launch);
         return (T) launch.getBukkitEntity();