From 74c0ccbb939db48c2e3c10af810630132b2d7d74 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Fri, 24 Aug 2018 11:50:26 -0500
Subject: [PATCH] Add More Creeper API


diff --git a/src/main/java/net/minecraft/server/EntityCreeper.java b/src/main/java/net/minecraft/server/EntityCreeper.java
index 19022b6e24..e070e7b2d2 100644
--- a/src/main/java/net/minecraft/server/EntityCreeper.java
+++ b/src/main/java/net/minecraft/server/EntityCreeper.java
@@ -14,7 +14,7 @@ public class EntityCreeper extends EntityMonster {
     private static final DataWatcherObject<Boolean> b = DataWatcher.a(EntityCreeper.class, DataWatcherRegistry.i);
     private static final DataWatcherObject<Boolean> c = DataWatcher.a(EntityCreeper.class, DataWatcherRegistry.i);private static final DataWatcherObject<Boolean> isIgnitedDW = c; // Paper OBFHELPER
     private int bC;
-    private int fuseTicks;
+    public int fuseTicks; // Paper - public
     public int maxFuseTicks = 30;
     public int explosionRadius = 3;
     private int bG;
@@ -92,9 +92,12 @@ public class EntityCreeper extends EntityMonster {
     public void tick() {
         if (this.isAlive()) {
             this.bC = this.fuseTicks;
-            if (this.isIgnited()) {
-                this.a(1);
-            }
+            // Paper start - This is no longer needed as the state is being set in setIgnited() now.
+            //               Ensures the CreeperIgniteEvent is not spammed every tick
+            //if (this.isIgnited()) {
+            //    this.a(1);
+            //}
+            // Paper end
 
             int i = this.dz();
 
@@ -102,7 +105,7 @@ public class EntityCreeper extends EntityMonster {
                 this.a(SoundEffects.ENTITY_CREEPER_PRIMED, 1.0F, 0.5F);
             }
 
-            this.fuseTicks += i;
+            this.fuseTicks += this.isIgnited() ? 1 : i; // Paper - workaround now that we aren't letting it get re-set every tick - GH-1389
             if (this.fuseTicks < 0) {
                 this.fuseTicks = 0;
             }
@@ -151,12 +154,21 @@ public class EntityCreeper extends EntityMonster {
         return LootTables.x;
     }
 
+    public int getState() { return dz(); } // Paper - OBFHELPER
     public int dz() {
         return ((Integer) this.datawatcher.get(EntityCreeper.a)).intValue();
     }
 
+    public void setState(int state) { a(state); } // Paper - OBFHELPER
     public void a(int i) {
-        this.datawatcher.set(EntityCreeper.a, Integer.valueOf(i));
+        // Paper start
+        if (getState() != i) {
+            com.destroystokyo.paper.event.entity.CreeperIgniteEvent event = new com.destroystokyo.paper.event.entity.CreeperIgniteEvent((org.bukkit.entity.Creeper) getBukkitEntity(), i == 1);
+            if (event.callEvent()) {
+                this.datawatcher.set(EntityCreeper.a, event.isIgnited() ? 1 : -1);
+            }
+        }
+        // Paper end
     }
 
     public void onLightningStrike(EntityLightning entitylightning) {
@@ -190,6 +202,7 @@ public class EntityCreeper extends EntityMonster {
         return super.a(entityhuman, enumhand);
     }
 
+    public void explode() { this.dE(); } // Paper - OBFHELPER
     private void dE() {
         if (!this.world.isClientSide) {
             boolean flag = this.world.getGameRules().getBoolean("mobGriefing");
@@ -241,8 +254,15 @@ public class EntityCreeper extends EntityMonster {
         return ((Boolean) this.datawatcher.get(EntityCreeper.c)).booleanValue();
     }
 
+    // Paper start
+    public void setIgnited(boolean ignited) {
+        this.datawatcher.set(EntityCreeper.c, ignited);
+        setState(ignited ? 1 : -1);
+    }
+
     public void dB() {
-        this.datawatcher.set(EntityCreeper.c, Boolean.valueOf(true));
+        setIgnited(true);
+        // Paper end
     }
 
     public boolean canCauseHeadDrop() {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftCreeper.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftCreeper.java
index ffebb54caa..ab2b20a0d4 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftCreeper.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftCreeper.java
@@ -76,4 +76,22 @@ public class CraftCreeper extends CraftMonster implements Creeper {
     public EntityType getType() {
         return EntityType.CREEPER;
     }
+
+    // Paper start
+    public void setIgnited(boolean ignited) {
+        getHandle().setIgnited(ignited);
+    }
+
+    public boolean isIgnited() {
+        return getHandle().isIgnited();
+    }
+
+    public int getFuseTicks() {
+        return getHandle().fuseTicks;
+    }
+
+    public void explode() {
+        getHandle().explode();
+    }
+    // Paper end
 }
-- 
2.19.0