From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Sat, 25 Aug 2018 19:56:51 -0500
Subject: [PATCH] Add PhantomPreSpawnEvent


diff --git a/src/main/java/net/minecraft/world/entity/monster/Phantom.java b/src/main/java/net/minecraft/world/entity/monster/Phantom.java
index c068eddb08898681735e483df5b9c36f5fef3878..0e96e9d7e4d636f4222f60cec556663f506c3906 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Phantom.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Phantom.java
@@ -171,6 +171,11 @@ public class Phantom extends FlyingMob implements Enemy {
         }
 
         this.setPhantomSize(nbt.getInt("Size"));
+        // Paper start
+        if (nbt.hasUUID("Paper.SpawningEntity")) {
+            this.spawningEntity = nbt.getUUID("Paper.SpawningEntity");
+        }
+        // Paper end
     }
 
     @Override
@@ -180,6 +185,11 @@ public class Phantom extends FlyingMob implements Enemy {
         nbt.putInt("AY", this.anchorPoint.getY());
         nbt.putInt("AZ", this.anchorPoint.getZ());
         nbt.putInt("Size", this.getPhantomSize());
+        // Paper start
+        if (this.spawningEntity != null) {
+            nbt.putUUID("Paper.SpawningEntity", this.spawningEntity);
+        }
+        // Paper end
     }
 
     @Override
@@ -231,6 +241,14 @@ public class Phantom extends FlyingMob implements Enemy {
         return entitysize.scale(f);
     }
 
+    // Paper start
+    java.util.UUID spawningEntity;
+
+    public java.util.UUID getSpawningEntity() {
+        return spawningEntity;
+    }
+    public void setSpawningEntity(java.util.UUID entity) { this.spawningEntity = entity; }
+    // Paper end
     private static enum AttackPhase {
 
         CIRCLE, SWOOP;
diff --git a/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java b/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java
index 42d88ce2e15477482a814a79aefd4abfcbcb5462..900a66fc7eb817509df904b71ccc3bd3976f3b35 100644
--- a/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java
@@ -3,6 +3,7 @@ package net.minecraft.world.level.levelgen;
 import java.util.Iterator;
 import net.minecraft.core.BlockPos;
 import net.minecraft.nbt.CompoundTag;
+import io.papermc.paper.util.MCUtil;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.stats.ServerStatsCounter;
@@ -71,9 +72,19 @@ public class PhantomSpawner implements CustomSpawner {
                                             int k = 1 + randomsource.nextInt(difficultydamagescaler.getDifficulty().getId() + 1);
 
                                             for (int l = 0; l < k; ++l) {
+                                                // Paper start
+                                                com.destroystokyo.paper.event.entity.PhantomPreSpawnEvent event = new com.destroystokyo.paper.event.entity.PhantomPreSpawnEvent(MCUtil.toLocation(world, blockposition1), ((ServerPlayer) entityhuman).getBukkitEntity(), org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL);
+                                                if (!event.callEvent()) {
+                                                    if (event.shouldAbortSpawn()) {
+                                                        break;
+                                                    }
+                                                    continue;
+                                                }
+                                                // Paper end
                                                 Phantom entityphantom = (Phantom) EntityType.PHANTOM.create(world);
 
                                                 if (entityphantom != null) {
+                                                    entityphantom.setSpawningEntity(entityhuman.getUUID()); // Paper
                                                     entityphantom.moveTo(blockposition1, 0.0F, 0.0F);
                                                     groupdataentity = entityphantom.finalizeSpawn(world, difficultydamagescaler, MobSpawnType.NATURAL, groupdataentity, (CompoundTag) null);
                                                     world.addFreshEntityWithPassengers(entityphantom, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL); // CraftBukkit
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPhantom.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPhantom.java
index f77b83bee6eb739220b55793a0807f0267cfc8a9..c9dab70b0b284fe1c1daafd3c1f5bd08b14fa35d 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPhantom.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPhantom.java
@@ -34,4 +34,11 @@ public class CraftPhantom extends CraftFlying implements Phantom {
     public EntityType getType() {
         return EntityType.PHANTOM;
     }
+
+    // Paper start
+    @Override
+    public java.util.UUID getSpawningEntity() {
+        return getHandle().getSpawningEntity();
+    }
+    // Paper end
 }