Paper/CraftBukkit-Patches/0149-Implement-SpawnerSpawnEvent.patch

From 071fbaa33adc4fca64ef162952ad4f5eccfb1a10 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Thu, 3 Mar 2016 19:45:46 +1100
Subject: [PATCH] Implement SpawnerSpawnEvent.


diff --git a/src/main/java/net/minecraft/server/MobSpawnerAbstract.java b/src/main/java/net/minecraft/server/MobSpawnerAbstract.java
index efe792b..a7903a2 100644
--- a/src/main/java/net/minecraft/server/MobSpawnerAbstract.java
+++ b/src/main/java/net/minecraft/server/MobSpawnerAbstract.java
@@ -99,6 +99,9 @@ public abstract class MobSpawnerAbstract {
                 {
                     entity.fromMobSpawner = true;
                 }
+                        if (org.bukkit.craftbukkit.event.CraftEventFactory.callSpawnerSpawnEvent(entity, blockposition).isCancelled()) {
+                            continue;
+                        }
                 // Spigot End
                         ChunkRegionLoader.a(entity, world, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER); // CraftBukkit
                         world.triggerEffect(2004, blockposition, 0);
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 5083875..c9ff812 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -984,4 +984,19 @@ public class CraftEventFactory {
         event.getInventory().setItem(2, event.getResult());
         return event;
     }
+
+    /**
+     * Mob spawner event.
+     */
+    public static SpawnerSpawnEvent callSpawnerSpawnEvent(Entity spawnee, BlockPosition pos) {
+        org.bukkit.craftbukkit.entity.CraftEntity entity = spawnee.getBukkitEntity();
+        BlockState state = entity.getWorld().getBlockAt(pos.getX(), pos.getY(), pos.getZ()).getState();
+        if (!(state instanceof org.bukkit.block.CreatureSpawner)) {
+            state = null;
+        }
+
+        SpawnerSpawnEvent event = new SpawnerSpawnEvent(entity, (org.bukkit.block.CreatureSpawner) state);
+        entity.getServer().getPluginManager().callEvent(event);
+        return event;
+    }
 }
-- 
2.5.0