case 0:
entity = new ImpEntity(world);
spawnEntity(posX, posY, posZ, entity, world);
break;
case 1:
entity = new HeatscarSpider(world);
spawnEntity(posX, posY, posZ, entity, world);
break;
case 2:
entity = new NitroCreeper(world);
spawnEntity(posX, posY, posZ, entity, world);