Paper/patches/api/0189-Spawn-Reason-API.patch

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/RegionAccessor.java b/src/main/java/org/bukkit/RegionAccessor.java
index 458119a9ef7ce8e1f59bd47caa5b4bc698715440..316d04db78c23ec236cc6f8d5c17e328cbd8ec75 100644
--- a/src/main/java/org/bukkit/RegionAccessor.java
+++ b/src/main/java/org/bukkit/RegionAccessor.java
@@ -326,8 +326,31 @@ public interface RegionAccessor {
      * @throws IllegalArgumentException if either parameter is null or the
      *     {@link Entity} requested cannot be spawned
      */
-    @NotNull
-    <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz, @Nullable Consumer<? super T> function) throws IllegalArgumentException;
+    // Paper start
+    default <T extends Entity> @NotNull T spawn(final @NotNull Location location, final @NotNull Class<T> clazz, final @Nullable Consumer<? super T> function) throws IllegalArgumentException {
+        return this.spawn(location, clazz, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.CUSTOM, function);
+    }
+
+    default @NotNull <T extends Entity> T spawn(final @NotNull Location location, final @NotNull Class<T> clazz, final org.bukkit.event.entity.CreatureSpawnEvent.@NotNull SpawnReason reason) throws IllegalArgumentException {
+        return this.spawn(location, clazz, reason, null);
+    }
+
+    default @NotNull <T extends Entity> T spawn(final @NotNull Location location, final @NotNull Class<T> clazz, final org.bukkit.event.entity.CreatureSpawnEvent.@NotNull SpawnReason reason, final @Nullable Consumer<? super T> function) throws IllegalArgumentException {
+        return this.spawn(location, clazz, function, reason);
+    }
+
+    default @NotNull Entity spawnEntity(final @NotNull Location loc, final @NotNull EntityType type, final org.bukkit.event.entity.CreatureSpawnEvent.@NotNull SpawnReason reason) {
+        com.google.common.base.Preconditions.checkArgument(type.getEntityClass() != null, "%s is not a valid EntityType, must have an entity class", type);
+        return this.spawn(loc, type.getEntityClass(), reason, null);
+    }
+
+    default @NotNull Entity spawnEntity(final @NotNull Location loc, final @NotNull EntityType type, final org.bukkit.event.entity.CreatureSpawnEvent.@NotNull SpawnReason reason, final @Nullable Consumer<? super Entity> function) {
+        com.google.common.base.Preconditions.checkArgument(type.getEntityClass() != null, "%s is not a valid EntityType, must have an entity class", type);
+        return this.spawn(loc, type.getEntityClass(), reason, function);
+    }
+
+    <T extends Entity> @NotNull T spawn(@NotNull Location location, @NotNull Class<T> clazz, @Nullable Consumer<? super T> function, org.bukkit.event.entity.CreatureSpawnEvent.@NotNull SpawnReason reason) throws IllegalArgumentException;
+    // Paper end
 
     /**
      * Creates a new entity at the given {@link Location} with the supplied