Unity中鼠标拾取的检测代码

    /// <summary>
    /// 当前视角的摄像机
    /// </summary>
    public Camera _camPlayer;
    /// <summary>
    /// 鼠标射线
    /// </summary>
    private Ray _ray;
    /// <summary>
    /// 射线碰撞的结构
    /// </summary>
    private RaycastHit _rayhit;
    /// <summary>
    /// 鼠标拾取的有效距离
    /// </summary>
    private float _fDistance = 20f;

 

    void Update()
    {
        //检测鼠标左键的拾取
        if (Input.GetMouseButtonDown(0)) {
            //鼠标的屏幕坐标空间位置转射线
            _ray = _camPlayer.ScreenPointToRay(Input.mousePosition);
            //射线检测，相关检测信息保存到RaycastHit 结构中
            if (Physics.Raycast(_ray, out _rayhit, _fDistance)) {
                //打印射线碰撞到的对象的名称
                print(_rayhit.collider.gameObject.name);
            }
        }
    }