private void forMelee(Creeper creeper) {
   Location lcreeper = creeper.getLocation();
   LivingEntity player = creeper.getTarget();
   Location lplayer = player.getLocation();
   Vector vcreeper = new Vector(lcreeper.getX(), lcreeper.getY(), lcreeper.getZ());
   Vector vplayer = new Vector(lplayer.getX(), lplayer.getY(), lplayer.getZ());
   if (vplayer.isInSphere(vcreeper, 3d)) {
     switch (lplayer.getWorld().getDifficulty()) {
       case EASY:
         player.damage(3, creeper);
       case NORMAL:
         player.damage(4, creeper);
       case HARD:
         player.damage(6, creeper);
     }
   }
 }