C＃GDI +如何旋转单个图像

Question

我一直试图用C＃GDI +制作游戏。为此我想让图像沿着它移动的方向旋转。

public Point PlayerPosition = new Point(320, 240);
public int PlayerDirection = 90;

public Bitmap PlayerImage;
PlayerImage = new Bitmap(Application.StartupPath + "\\Drake.png");

public void DrawPlayer(Graphics g)
    {

        Matrix rotMatrix = new Matrix();
        rotMatrix.RotateAt((float)PlayerDirection, new PointF(PlayerPosition.X-17, (float)PlayerPosition.Y-27), MatrixOrder.Prepend);
        g.Transform = rotMatrix;            
        g.DrawImage(PlayerImage , new Point(PlayerPosition.X-33,PlayerPosition.Y-70)); 


    }

但是每个对象都在屏幕上旋转。我只需要将我绘制的这一个图像旋转到图片框。