SPIGOT-6417: Add Creeper fuse ticks API

nms-patches/net/minecraft/world/entity/monster/EntityCreeper.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/monster/EntityCreeper.java
 +++ b/net/minecraft/world/entity/monster/EntityCreeper.java
-@@ -38,6 +38,12 @@
+@@ -38,13 +38,19 @@
  import net.minecraft.world.level.IMaterial;
  import net.minecraft.world.level.World;
  
@@ -13,6 +13,14 @@
  public class EntityCreeper extends EntityMonster {
  
      private static final DataWatcherObject<Integer> b = DataWatcher.a(EntityCreeper.class, DataWatcherRegistry.b);
+     private static final DataWatcherObject<Boolean> POWERED = DataWatcher.a(EntityCreeper.class, DataWatcherRegistry.i);
+     private static final DataWatcherObject<Boolean> d = DataWatcher.a(EntityCreeper.class, DataWatcherRegistry.i);
+     private int bo;
+-    private int fuseTicks;
++    public int fuseTicks; // PAIL
+     public int maxFuseTicks = 30;
+     public int explosionRadius = 3;
+     private int bs;
 @@ -200,9 +206,19 @@
      @Override
      public void onLightningStrike(WorldServer worldserver, EntityLightning entitylightning) {

src/main/java/org/bukkit/craftbukkit/entity/CraftCreeper.java

@@ -52,6 +52,19 @@ public class CraftCreeper extends CraftMonster implements Creeper {
         return getHandle().maxFuseTicks;
     }
 
+    @Override
+    public void setFuseTicks(int ticks) {
+        Preconditions.checkArgument(ticks >= 0, "ticks < 0");
+        Preconditions.checkArgument(ticks <= getMaxFuseTicks(), "ticks > maxFuseTicks");
+
+        getHandle().fuseTicks = ticks;
+    }
+
+    @Override
+    public int getFuseTicks() {
+        return getHandle().fuseTicks;
+    }
+
     @Override
     public void setExplosionRadius(int radius) {
         Preconditions.checkArgument(radius >= 0, "radius < 0");