Paper/Spigot-Server-Patches/0132-Firework-API-s.patch

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/nbt/NBTTagCompound.java b/src/main/java/net/minecraft/nbt/NBTTagCompound.java
index bf4826e90976fed2ae95e84cadc7f29433af1ddf..d5508deff819309034554abc7b36aac40fa33503 100644
--- a/src/main/java/net/minecraft/nbt/NBTTagCompound.java
+++ b/src/main/java/net/minecraft/nbt/NBTTagCompound.java
@@ -153,6 +153,7 @@ public class NBTTagCompound implements NBTBase {
         return GameProfileSerializer.a(this.get(s));
     }
 
+    public final boolean hasUUID(String s) { return this.b(s); } // Paper - OBFHELPER
     public boolean b(String s) {
         NBTBase nbtbase = this.get(s);
 
diff --git a/src/main/java/net/minecraft/world/entity/projectile/EntityFireworks.java b/src/main/java/net/minecraft/world/entity/projectile/EntityFireworks.java
index 2df84b56ef35a18648e74a134ac7ab97c518e481..9cc59439ae2c4e758c44b2a92b78bc328efdfa1b 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/EntityFireworks.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/EntityFireworks.java
@@ -38,7 +38,8 @@ public class EntityFireworks extends IProjectile {
     public static final DataWatcherObject<Boolean> SHOT_AT_ANGLE = DataWatcher.a(EntityFireworks.class, DataWatcherRegistry.i);
     private int ticksFlown;
     public int expectedLifespan;
-    private EntityLiving ridingEntity;
+    public EntityLiving ridingEntity; // Paper - public
+    public java.util.UUID spawningEntity; // Paper
 
     public EntityFireworks(EntityTypes<? extends EntityFireworks> entitytypes, World world) {
         super(entitytypes, world);
@@ -285,6 +286,11 @@ public class EntityFireworks extends IProjectile {
         }
 
         nbttagcompound.setBoolean("ShotAtAngle", (Boolean) this.datawatcher.get(EntityFireworks.SHOT_AT_ANGLE));
+        // Paper start
+        if (this.spawningEntity != null) {
+            nbttagcompound.setUUID("SpawningEntity", this.spawningEntity);
+        }
+        // Paper end
     }
 
     @Override
@@ -301,7 +307,11 @@ public class EntityFireworks extends IProjectile {
         if (nbttagcompound.hasKey("ShotAtAngle")) {
             this.datawatcher.set(EntityFireworks.SHOT_AT_ANGLE, 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/world/item/ItemCrossbow.java b/src/main/java/net/minecraft/world/item/ItemCrossbow.java
index d52f3cb5d76bde1cf29c654dade6d8379b44c2e5..ec6c0836f02e7ac5b72fd224a3022a844dce55cb 100644
--- a/src/main/java/net/minecraft/world/item/ItemCrossbow.java
+++ b/src/main/java/net/minecraft/world/item/ItemCrossbow.java
@@ -205,6 +205,7 @@ public class ItemCrossbow extends ItemProjectileWeapon implements ItemVanishable
 
             if (flag1) {
                 object = new EntityFireworks(world, itemstack1, entityliving, entityliving.locX(), entityliving.getHeadY() - 0.15000000596046448D, entityliving.locZ(), true);
+                ((EntityFireworks) object).spawningEntity = entityliving.getUniqueID(); // Paper
             } else {
                 object = a(world, entityliving, itemstack, itemstack1);
                 if (flag || f3 != 0.0F) {
diff --git a/src/main/java/net/minecraft/world/item/ItemFireworks.java b/src/main/java/net/minecraft/world/item/ItemFireworks.java
index 9153945c2e245b9a2a098bdf58b0dcab052084ff..a2950faa48021782f10db0673d12d178443f7ccc 100644
--- a/src/main/java/net/minecraft/world/item/ItemFireworks.java
+++ b/src/main/java/net/minecraft/world/item/ItemFireworks.java
@@ -27,6 +27,7 @@ public class ItemFireworks extends Item {
             Vec3D vec3d = itemactioncontext.getPos();
             EnumDirection enumdirection = itemactioncontext.getClickedFace();
             EntityFireworks entityfireworks = new EntityFireworks(world, itemactioncontext.getEntity(), vec3d.x + (double) enumdirection.getAdjacentX() * 0.15D, vec3d.y + (double) enumdirection.getAdjacentY() * 0.15D, vec3d.z + (double) enumdirection.getAdjacentZ() * 0.15D, itemstack);
+            entityfireworks.spawningEntity = itemactioncontext.getEntity().getUniqueID(); // Paper
 
             world.addEntity(entityfireworks);
             itemstack.subtract(1);
@@ -41,7 +42,11 @@ 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/org/bukkit/craftbukkit/entity/CraftFirework.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
index 33162fd419ab9a7b650ca9d4270a0c03f06f19f6..73c2da316e41329114fcb3d30cb009d9cc7de7b9 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
@@ -1,6 +1,7 @@
 package org.bukkit.craftbukkit.entity;
 
 import java.util.Random;
+import net.minecraft.world.entity.EntityLiving;
 import net.minecraft.world.entity.projectile.EntityFireworks;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.Items;
@@ -78,4 +79,17 @@ public class CraftFirework extends CraftProjectile implements Firework {
     public void setShotAtAngle(boolean shotAtAngle) {
         getHandle().getDataWatcher().set(EntityFireworks.SHOT_AT_ANGLE, shotAtAngle);
     }
+
+    // Paper start
+    @Override
+    public java.util.UUID getSpawningEntity() {
+        return getHandle().spawningEntity;
+    }
+
+    @Override
+    public org.bukkit.entity.LivingEntity getBoostedEntity() {
+        EntityLiving boostedEntity = getHandle().ridingEntity;
+        return boostedEntity != null ? (org.bukkit.entity.LivingEntity) boostedEntity.getBukkitEntity() : null;
+    }
+    // Paper end
 }