碰撞检测（第三课）

start () {
    // 碰撞检测
    cc.director.getCollisionManager().enabled = true

}

onCollisionEnter(other) {
    console.log(other,"发生碰撞");
}

onCollisionStay(other) {
    console.log(other,"碰撞持续");
}

onCollisionExit(other) {
    console.log(other,"碰撞结束");
}