PaperMC/patches/server/0849-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 0faed04c7794dd4fd758a151d15ad5956e4f4907..c9396a55fddba47124ad5aebe7f816d99a03659c 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -509,8 +509,15 @@ 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();
@@ -593,6 +600,11 @@ 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 7f9a716ea65f98d1c8487438949f1d5bc8becc4a..ab684fc1b09d4eade7dd11a95065e72b842a3667 100644
--- a/src/main/java/org/bukkit/craftbukkit/projectiles/CraftBlockProjectileSource.java
+++ b/src/main/java/org/bukkit/craftbukkit/projectiles/CraftBlockProjectileSource.java
@@ -56,6 +56,13 @@ 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);
@@ -146,6 +153,11 @@ 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();