From 6f4d52fa199a856189faa704379f3d029192a50c Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 28 Dec 2016 01:18:33 -0500
Subject: [PATCH] Firework API's


diff --git a/src/main/java/net/minecraft/server/EntityFireworks.java b/src/main/java/net/minecraft/server/EntityFireworks.java
index 25851b70c..ffd379c97 100644
--- a/src/main/java/net/minecraft/server/EntityFireworks.java
+++ b/src/main/java/net/minecraft/server/EntityFireworks.java
@@ -3,6 +3,8 @@ package net.minecraft.server;
 import java.util.Iterator;
 import java.util.List;
 import java.util.OptionalInt;
+import java.util.UUID;
+
 import org.bukkit.craftbukkit.event.CraftEventFactory; // CraftBukkit
 
 public class EntityFireworks extends Entity implements IProjectile {
@@ -12,7 +14,8 @@ public class EntityFireworks extends Entity implements IProjectile {
     private static final DataWatcherObject<Boolean> d = DataWatcher.a(EntityFireworks.class, DataWatcherRegistry.i);
     private int ticksFlown;
     public int expectedLifespan;
-    private EntityLiving ridingEntity;
+    private EntityLiving ridingEntity; public final EntityLiving getBoostedEntity() { return this.ridingEntity; } // Paper - OBFHELPER
+    public UUID spawningEntity; // Paper
 
     public EntityFireworks(EntityTypes<? extends EntityFireworks> entitytypes, World world) {
         super(entitytypes, world);
@@ -255,6 +258,11 @@ public class EntityFireworks extends Entity implements IProjectile {
         }
 
         nbttagcompound.setBoolean("ShotAtAngle", (Boolean) this.datawatcher.get(EntityFireworks.d));
+        // Paper start
+        if (this.spawningEntity != null) {
+            nbttagcompound.setUUID("SpawningEntity", this.spawningEntity);
+        }
+        // Paper end
     }
 
     @Override
@@ -270,7 +278,11 @@ public class EntityFireworks extends Entity implements IProjectile {
         if (nbttagcompound.hasKey("ShotAtAngle")) {
             this.datawatcher.set(EntityFireworks.d, nbttagcompound.getBoolean("ShotAtAngle"));
         }
-
+        // Paper start
+        if (nbttagcompound.hasUUID("SpawningEntity")) {
+            this.spawningEntity = nbttagcompound.getUUID("SpawningEntity");
+        }
+        // Paper end
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/server/ItemFireworks.java b/src/main/java/net/minecraft/server/ItemFireworks.java
index 37caa79cb..aea46ffae 100644
--- a/src/main/java/net/minecraft/server/ItemFireworks.java
+++ b/src/main/java/net/minecraft/server/ItemFireworks.java
@@ -17,6 +17,7 @@ public class ItemFireworks extends Item {
             ItemStack itemstack = itemactioncontext.getItemStack();
             Vec3D vec3d = itemactioncontext.j();
             EntityFireworks entityfireworks = new EntityFireworks(world, vec3d.x, vec3d.y, vec3d.z, itemstack);
+            entityfireworks.spawningEntity = itemactioncontext.getEntity().getUniqueID(); // Paper
 
             world.addEntity(entityfireworks);
             itemstack.subtract(1);
@@ -31,7 +32,11 @@ public class ItemFireworks extends Item {
             ItemStack itemstack = entityhuman.b(enumhand);
 
             if (!world.isClientSide) {
-                world.addEntity(new EntityFireworks(world, itemstack, entityhuman));
+                // Paper start
+                final EntityFireworks entityfireworks = new EntityFireworks(world, itemstack, entityhuman);
+                entityfireworks.spawningEntity = entityhuman.getUniqueID();
+                world.addEntity(entityfireworks);
+                // Paper end
                 if (!entityhuman.abilities.canInstantlyBuild) {
                     itemstack.subtract(1);
                 }
diff --git a/src/main/java/net/minecraft/server/NBTTagCompound.java b/src/main/java/net/minecraft/server/NBTTagCompound.java
index 3f6d2676e..b1fd18151 100644
--- a/src/main/java/net/minecraft/server/NBTTagCompound.java
+++ b/src/main/java/net/minecraft/server/NBTTagCompound.java
@@ -112,7 +112,7 @@ public class NBTTagCompound implements NBTBase {
         return new UUID(this.getLong(s + "Most"), this.getLong(s + "Least"));
     }
 
-    public boolean b(String s) {
+    public final boolean hasUUID(String s) { return this.b(s); } public boolean b(String s) { // Paper - OBFHELPER
         return this.hasKeyOfType(s + "Most", 99) && this.hasKeyOfType(s + "Least", 99);
     }
 
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
index 6b69be742..37374ae5b 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
@@ -2,6 +2,7 @@ package org.bukkit.craftbukkit.entity;
 
 import java.util.Random;
 import net.minecraft.server.EntityFireworks;
+import net.minecraft.server.EntityLiving;
 import net.minecraft.server.ItemStack;
 import net.minecraft.server.Items;
 import org.bukkit.Material;
@@ -9,8 +10,11 @@ import org.bukkit.craftbukkit.CraftServer;
 import org.bukkit.craftbukkit.inventory.CraftItemStack;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Firework;
+import org.bukkit.entity.LivingEntity;
 import org.bukkit.inventory.meta.FireworkMeta;
 
+import java.util.UUID;
+
 public class CraftFirework extends CraftEntity implements Firework {
 
     private final Random random = new Random();
@@ -68,4 +72,18 @@ public class CraftFirework extends CraftEntity implements Firework {
     public void detonate() {
         getHandle().expectedLifespan = 0;
     }
+
+    // Paper start
+
+    @Override
+    public UUID getSpawningEntity() {
+        return getHandle().spawningEntity;
+    }
+
+    @Override
+    public LivingEntity getBoostedEntity() {
+        EntityLiving boostedEntity = getHandle().getBoostedEntity();
+        return boostedEntity != null ? (LivingEntity) boostedEntity.getBukkitEntity() : null;
+    }
+    // Paper end
 }
-- 
2.22.0