//示例代码://定义碰撞检测函数 function collisionDetection(obj1, obj2) { //获取物体在X轴和Y轴坐标 var obj1Left = obj1.x; var obj1Right = obj1.x + obj1.width; var obj1Top = obj1.y; var obj1Bottom = obj1.y + obj1.height;
var obj2Left = obj2.x; var obj2Right = obj2.x + obj2.width; var obj2Top = obj2.y;
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