private void GameOver() { if (!_ground.Collided(_bird)) { if (!_isBirdRotated) { _bird.X += DEAD_BIRD_POSITION_X_OFFSET; _bird.GetBirdImage().RotateFlip(RotateFlipType.Rotate90FlipNone); } _isBirdRotated = true; _bird.Fall(); } else { _flappyBirdTimer.Stop(); _bird.GetBirdImage().RotateFlip(RotateFlipType.Rotate90FlipNone); } }