public void Add(Player player)
{
players.Add(player);
RefreshGrid();
// 기존 유저들에게 새로 생성된 플레이어 정보를 알려주기
var packet = packetFactory.Create(player);
broadcaster.BroadcastLazy(player.Position, packet);
}
void BroadcastFoodCreate(Food food)
{
var packet = packetFactory.Create(food);
broadcaster.BroadcastLazy(food.Position, packet);
}