registry.scala

object MovingRegistry {
  case class Key(world: World, pos: WorldPos){
    private lazy val hash = world.getWorldInfo.getDimension + pos.x * pos.y * pos.z
    override def hashCode(): Int = {
      hash
    }

    override def equals(obj: Any): Boolean = {
      obj match {
        case obj:Key => obj.world == world && obj.pos == pos
        case _ => false
      }
    }
  }