public void Fall()
{
//
//Gポイントを消費する
gameMgr.gPoint -= consumeGPoint;
//もしスタートアイテムだったらゲームを開始する
if (isStartItem)
{
gameMgr.ChangeGameMode(GameState.maingame);
}
//Vector3 diff = (this.star.transform.position - this.transform.position).normalized;
//this.transform.rotation = Quaternion.FromToRotation(Vector3.up, diff);
//初期速度の設定(差をとって正規化)
Vector2 vec_sub = (Vector2)(transform.position - star.transform.position);
vec_sub.Normalize();
//落とす
rb.velocity = -vec_sub * firstspeed;
//
rb.AddForce(-vec_sub * force_amount);
GetComponentInParent <ItemGenerator>().FloatingItemList.Remove(this);
isFalling = true;
}