From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 10 Apr 2014 23:18:28 -0400
Subject: [PATCH] Spawn Reason API


diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
index 4511cb786a5618cc1b7ff5cbb97ef1fe8ff05e17..ba5e6cca028df293a939db37ecf5857059554291 100644
--- a/src/main/java/org/bukkit/World.java
+++ b/src/main/java/org/bukkit/World.java
@@ -1,6 +1,8 @@
 package org.bukkit;
 
 import java.io.File;
+
+import org.bukkit.event.entity.CreatureSpawnEvent;
 import org.bukkit.generator.ChunkGenerator;
 
 import java.util.ArrayList;
@@ -2156,6 +2158,12 @@ public interface World extends PluginMessageRecipient, Metadatable {
     @NotNull
     public <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz) throws IllegalArgumentException;
 
+    // Paper start
+    @NotNull
+    public default <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz, @NotNull CreatureSpawnEvent.SpawnReason reason) throws IllegalArgumentException {
+        return spawn(location, clazz, reason, null);
+    }
+
     /**
      * Spawn an entity of a specific class at the given {@link Location}, with
      * the supplied function run before the entity is added to the world.
@@ -2173,7 +2181,28 @@ public interface World extends PluginMessageRecipient, Metadatable {
      *     {@link Entity} requested cannot be spawned
      */
     @NotNull
-    public <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz, @Nullable Consumer<T> function) throws IllegalArgumentException;
+    public default <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz, @Nullable Consumer<T> function) throws IllegalArgumentException {
+        return spawn(location, clazz, CreatureSpawnEvent.SpawnReason.CUSTOM, function);
+    }
+
+    @NotNull
+    public default <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz, @NotNull CreatureSpawnEvent.SpawnReason reason, @Nullable Consumer<T> function) throws IllegalArgumentException {
+        return spawn(location, clazz, function, reason);
+    }
+
+    @NotNull
+    public default Entity spawnEntity(@NotNull Location loc, @NotNull EntityType type, @NotNull CreatureSpawnEvent.SpawnReason reason) {
+        return spawn(loc, (Class<Entity>) type.getEntityClass(), reason, null);
+    }
+
+    @NotNull
+    public default Entity spawnEntity(@NotNull Location loc, @NotNull EntityType type, @NotNull CreatureSpawnEvent.SpawnReason reason, @Nullable Consumer<Entity> function) {
+        return spawn(loc, (Class<Entity>) type.getEntityClass(), reason, function);
+    }
+
+    @NotNull
+    public <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz, @Nullable Consumer<T> function, @NotNull CreatureSpawnEvent.SpawnReason reason) throws IllegalArgumentException;
+    // Paper end
 
     /**
      * Spawn a {@link FallingBlock} entity at the given {@link Location} of