Add ANIMALS tpe to PopulateChunkEvent.Populate Custom providers should call this function if they spawn animals curing population. Closes #790

patches/minecraft/net/minecraft/world/gen/ChunkProviderGenerate.java.patch

@@ -95,7 +95,14 @@
          {
              l1 = k + this.field_73220_k.nextInt(16) + 8;
              i2 = this.field_73220_k.nextInt(256);
-@@ -390,7 +423,8 @@
+@@ -386,11 +419,15 @@
+         }
+ 
+         biomegenbase.func_76728_a(this.field_73230_p, this.field_73220_k, k, l);
++        if (TerrainGen.populate(p_73153_1_, field_73230_p, field_73220_k, p_73153_2_, p_73153_3_, flag, ANIMALS))
++        {
+         SpawnerAnimals.func_77191_a(this.field_73230_p, biomegenbase, k + 8, l + 8, 16, 16, this.field_73220_k);
++        }
          k += 8;
          l += 8;
  
@@ -105,7 +112,7 @@
          {
              for (l1 = 0; l1 < 16; ++l1)
              {
-@@ -408,6 +442,8 @@
+@@ -408,6 +445,8 @@
              }
          }
  

src/main/java/net/minecraftforge/event/terraingen/PopulateChunkEvent.java

@@ -50,7 +50,7 @@ public class PopulateChunkEvent extends ChunkProviderEvent
     {
         /** Use CUSTOM to filter custom event types
          */
-        public static enum EventType { DUNGEON, FIRE, GLOWSTONE, ICE, LAKE, LAVA, NETHER_LAVA, CUSTOM }
+        public static enum EventType { DUNGEON, FIRE, GLOWSTONE, ICE, LAKE, LAVA, NETHER_LAVA, ANIMALS, CUSTOM }
         
         public final EventType type;