付代码 :
var ball_skin = new Laya.Sprite().loadImage("res/basketball.png");
ball_skin.pivot(ball_skin.width / 2, ball_skin.height / 2);
this.ball = Matter.Bodies.circle(0, -100, 34, {
layaSprite: ball_skin, // 绑定一个laya的Sprite, 不能用render.sprite
density: 1, // 密度
restitution: 0.85 // 弹性
});
