/// <summary>
        /// 1フレームぶんの処理を行う。
        /// </summary>
        /// <param name="keys">GetHitKeyStateAll で取得したキー入力情報</param>
        public void Update(Key key)
        {
            // 移動(斜め移動が速くなるのは気にしないことにした)
            var currentSpeed = key.IsPressing(DX.KEY_INPUT_LSHIFT) ? slowSpeed : speed;
            if (key.IsPressing(DX.KEY_INPUT_UP))
            {
                Position.Y -= currentSpeed;
            }
            if (key.IsPressing(DX.KEY_INPUT_LEFT))
            {
                Position.X -= currentSpeed;
            }
            if (key.IsPressing(DX.KEY_INPUT_DOWN))
            {
                Position.Y += currentSpeed;
            }
            if (key.IsPressing(DX.KEY_INPUT_RIGHT))
            {
                Position.X += currentSpeed;
            }

            // 画面外に行かないようにする
            if (Position.X < Radius)
            {
                Position.X = Radius;
            }
            if (Position.Y < Radius)
            {
                Position.Y = Radius;
            }
            if (Position.X > 640 - Radius)
            {
                Position.X = 640 - Radius;
            }
            if (Position.Y > 480 - Radius)
            {
                Position.Y = 480 - Radius;
            }

            // 弾を発射
            if (bulletFrame == 0 && key.IsPressing(DX.KEY_INPUT_Z))
            {
                game.OwnBullets.Add(new Bullet(1, Position, 5, 3 * Math.PI / 2, 10.0, DX.GetColor(255, 255, 0)));
                bulletFrame = 12;
            }
            if (bulletFrame > 0)
            {
                --bulletFrame;
            }
        }
        public ShootingGame(Key key, string scriptPath)
        {
            OwnChar = new OwnCharacter(this, new Position(320.0, 400.0));
            OwnBullets = new List<Bullet>();
            Enemies = new List<Enemy>();
            EnemyBullets = new List<Bullet>();

            this.key = key;

            // スクリプト読み込み
            this.ScriptPath = scriptPath;
            var loader = new ScriptLoader(this);
            var script = loader.Load(this.ScriptPath);
            runner = new ScriptRunner(this, script);
        }