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path: root/nms-patches/EntitySlime.patch
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--- a/net/minecraft/server/EntitySlime.java
+++ b/net/minecraft/server/EntitySlime.java
@@ -1,6 +1,13 @@
 package net.minecraft.server;
 
 import javax.annotation.Nullable;
+// CraftBukkit start
+import java.util.ArrayList;
+import java.util.List;
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.entity.EntityTransformEvent;
+import org.bukkit.event.entity.SlimeSplitEvent;
+// CraftBukkit end
 
 public class EntitySlime extends EntityInsentient implements IMonster {
 
@@ -134,7 +141,7 @@
     }
 
     public EntityTypes<? extends EntitySlime> P() {
-        return super.P();
+        return (EntityTypes<? extends EntitySlime>) super.P(); // CraftBukkit - decompile error
     }
 
     public void die() {
@@ -143,6 +150,19 @@
         if (!this.world.isClientSide && i > 1 && this.getHealth() <= 0.0F) {
             int j = 2 + this.random.nextInt(3);
 
+            // CraftBukkit start
+            SlimeSplitEvent event = new SlimeSplitEvent((org.bukkit.entity.Slime) this.getBukkitEntity(), j);
+            this.world.getServer().getPluginManager().callEvent(event);
+
+            if (!event.isCancelled() && event.getCount() > 0) {
+                j = event.getCount();
+            } else {
+                super.die();
+                return;
+            }
+            List<EntityLiving> slimes = new ArrayList<>(j);
+            // CraftBukkit end
+
             for (int k = 0; k < j; ++k) {
                 float f = ((float) (k % 2) - 0.5F) * (float) i / 4.0F;
                 float f1 = ((float) (k / 2) - 0.5F) * (float) i / 4.0F;
@@ -158,8 +178,18 @@
 
                 entityslime.setSize(i / 2, true);
                 entityslime.setPositionRotation(this.locX + (double) f, this.locY + 0.5D, this.locZ + (double) f1, this.random.nextFloat() * 360.0F, 0.0F);
-                this.world.addEntity(entityslime);
+
+                slimes.add(entityslime); // CraftBukkit
+            }
+
+            // CraftBukkit start
+            if (CraftEventFactory.callEntityTransformEvent(this, slimes, EntityTransformEvent.TransformReason.SPLIT).isCancelled()) {
+                return;
+            }
+            for (EntityLiving living : slimes) {
+                this.world.addEntity(living, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SLIME_SPLIT); // CraftBukkit - SpawnReason
             }
+            // CraftBukkit end
         }
 
         super.die();