From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 28 Dec 2016 07:18:33 +0100
Subject: [PATCH] Firework API's


diff --git a/src/main/java/net/minecraft/world/entity/projectile/FireworkRocketEntity.java b/src/main/java/net/minecraft/world/entity/projectile/FireworkRocketEntity.java
index 4abcdc515411372006ff5d33510bdd64092c186a..5406925cd66f46ab8744123c670d72cea7bfc3a1 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/FireworkRocketEntity.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/FireworkRocketEntity.java
@@ -39,6 +39,7 @@ public class FireworkRocketEntity extends Projectile implements ItemSupplier {
     public int lifetime;
     @Nullable
     public LivingEntity attachedToEntity;
+    public java.util.UUID spawningEntity; // Paper
 
     public FireworkRocketEntity(EntityType<? extends FireworkRocketEntity> type, Level world) {
         super(type, world);
@@ -318,6 +319,11 @@ public class FireworkRocketEntity extends Projectile implements ItemSupplier {
         }
 
         nbt.putBoolean("ShotAtAngle", (Boolean) this.entityData.get(FireworkRocketEntity.DATA_SHOT_AT_ANGLE));
+        // Paper start
+        if (this.spawningEntity != null) {
+            nbt.putUUID("SpawningEntity", this.spawningEntity);
+        }
+        // Paper end
     }
 
     @Override
@@ -334,7 +340,11 @@ public class FireworkRocketEntity extends Projectile implements ItemSupplier {
         if (nbt.contains("ShotAtAngle")) {
             this.entityData.set(FireworkRocketEntity.DATA_SHOT_AT_ANGLE, nbt.getBoolean("ShotAtAngle"));
         }
-
+        // Paper start
+        if (nbt.hasUUID("SpawningEntity")) {
+            this.spawningEntity = nbt.getUUID("SpawningEntity");
+        }
+        // Paper end
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/world/item/CrossbowItem.java b/src/main/java/net/minecraft/world/item/CrossbowItem.java
index 17b797a036ac0f58b58f627dc61ac503c8f321db..d86ec8c4c1c3e7974463a545d80ed9744de0fbbb 100644
--- a/src/main/java/net/minecraft/world/item/CrossbowItem.java
+++ b/src/main/java/net/minecraft/world/item/CrossbowItem.java
@@ -220,6 +220,7 @@ public class CrossbowItem extends ProjectileWeaponItem implements Vanishable {
 
             if (flag1) {
                 object = new FireworkRocketEntity(world, projectile, shooter, shooter.getX(), shooter.getEyeY() - 0.15000000596046448D, shooter.getZ(), true);
+                ((FireworkRocketEntity) object).spawningEntity = shooter.getUUID(); // Paper
             } else {
                 object = CrossbowItem.getArrow(world, shooter, crossbow, projectile);
                 if (creative || simulated != 0.0F) {
diff --git a/src/main/java/net/minecraft/world/item/FireworkRocketItem.java b/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
index cdf35c5873f68245891241c0efa3bcf5658c3f6d..766af1f45b14654d3655a06ae0bfb0d4cfbdff7a 100644
--- a/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
+++ b/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
@@ -44,6 +44,7 @@ public class FireworkRocketItem extends Item {
             Vec3 vec3 = context.getClickLocation();
             Direction direction = context.getClickedFace();
             FireworkRocketEntity fireworkRocketEntity = new FireworkRocketEntity(level, context.getPlayer(), vec3.x + (double)direction.getStepX() * 0.15D, vec3.y + (double)direction.getStepY() * 0.15D, vec3.z + (double)direction.getStepZ() * 0.15D, itemStack);
+            fireworkRocketEntity.spawningEntity = context.getPlayer() == null ? null : context.getPlayer().getUUID(); // Paper
             level.addFreshEntity(fireworkRocketEntity);
             itemStack.shrink(1);
         }
@@ -57,6 +58,7 @@ public class FireworkRocketItem extends Item {
             ItemStack itemStack = user.getItemInHand(hand);
             if (!world.isClientSide) {
                 FireworkRocketEntity fireworkRocketEntity = new FireworkRocketEntity(world, itemStack, user);
+                fireworkRocketEntity.spawningEntity = user.getUUID(); // Paper
                 world.addFreshEntity(fireworkRocketEntity);
                 if (!user.getAbilities().instabuild) {
                     itemStack.shrink(1);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
index 3a1c3d20ecc3612421e346edbbb74ab47f16a137..be86114eac3975b82ca74d4d6ed3f0402a642e8a 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
@@ -78,4 +78,17 @@ public class CraftFirework extends CraftProjectile implements Firework {
     public void setShotAtAngle(boolean shotAtAngle) {
         this.getHandle().getEntityData().set(FireworkRocketEntity.DATA_SHOT_AT_ANGLE, shotAtAngle);
     }
+
+    // Paper start
+    @Override
+    public java.util.UUID getSpawningEntity() {
+        return getHandle().spawningEntity;
+    }
+
+    @Override
+    public org.bukkit.entity.LivingEntity getBoostedEntity() {
+        net.minecraft.world.entity.LivingEntity boostedEntity = getHandle().attachedToEntity;
+        return boostedEntity != null ? (org.bukkit.entity.LivingEntity) boostedEntity.getBukkitEntity() : null;
+    }
+    // Paper end
 }