public void RemoveActor(Actor actor)
{
if (!_actorList.ContainsKey(actor.tag))
return;
_actorList[actor.tag].Remove(actor);
}
public void RegisterActor(Actor actor)
{
if (!_actorList.ContainsKey(actor.tag))
_actorList[actor.tag] = new HashSet<Actor>();
_actorList[actor.tag].Add(actor);
// Playerだけは特別に保存しておく(アクセスが多いので)
if (actor.tag == TagName.Player)
SetPlayer(actor.gameObject.GetComponent<Player>());
}