void ClickOn(Vector2 pos)
{
if (player == null)
return;
Debug.Log("点击的坐标："+pos);
Ray ray = this.GetComponent<Camera>().ScreenPointToRay(pos);
Debug.Log("ray：" + ray);
RaycastHit[] hits = Physics.RaycastAll(ray);
Debug.Log(hits.Length);
foreach (RaycastHit hit in hits){
//算出点击位置
BoxCollider bc = hit.collider as BoxCollider;
if (bc != null && bc.name.Contains("floor") && player != null){
//算出走动的方向和目的点，走动过去
player.GetComponent<Player>().WalkTo(hit.point);
break;
}
}
}
其他的值都有，但是到RaycastHit[] hits = Physics.RaycastAll(ray);这里时候，hits 里面没有值，导致代码无法向下进行，请问是什么原因导致的，怎么破解？
