Html5 Canvas动画基础碰撞检测的实现

代码如下：

window.onload = function () {
canvas = document.getElementById('collCanvas');
context = canvas.getContext('2d');
Capturemouse(canvas);
circle = new Circle(100,100,100);
rect = new Rect(canvas.width/2,canvas.height/2,100,100);
drawAnimation();
}