计算机图形学几何算法详解电子书，可以帮助学习游戏编程人员有所帮助，如有需求者可以下载。-Computer graphics, geometric algorithms Xiangjie e-books, learning games can help programmers to help, if demand can download.

通过对几何位置的算法，判断小球是否与砖块相碰，从而实现砖块的运动-Through the geometry of the algorithm, to determine whether the bricks touching the ball, enabling the movement of bricks