// Update is called once per frame
void Update()
{
Ray ray = new Ray(transform.position, transform.forward);
RaycastHit hit;
if (Physics.Raycast(ray, out hit, 100))
{
GazeCanvas.transform.position = hit.point;
GazeCanvas.transform.localScale = originScale * hit.distance;
GazeCanvas.transform.forward = hit.normal; //让射线凝视环击中物体表面
if (hit.transform.gameObject != target)
{
if (target != null)
{
VRGazeItem oldItem = target.GetComponent <VRGazeItem>(); //此时target还没有赋值
if (oldItem)
{
oldItem.OnGazeOut();
}
}
//视线初次进入的处理
target = hit.transform.gameObject;
VRGazeItem newItem = target.GetComponent <VRGazeItem>();
if (newItem)
{
newItem.OnGazeIn();
}
}
else //视线停留
{
nowTime += Time.deltaTime;
if ((countDownTime - nowTime) > 0)
{
//尚未达到激活条件，倒计时
GazeImage.fillAmount = nowTime / countDownTime;
}
else
{
//达到激活条件
VRGazeItem gazeFireItem = target.GetComponent <VRGazeItem>();
if (gazeFireItem)
{
gazeFireItem.OnGazeFire(hit);
}
nowTime = 0.0f;
}
}
}
else
{
GazeCanvas.transform.localPosition = originPos;
GazeCanvas.transform.localScale = originScale;
GazeCanvas.transform.forward = Camera.main.transform.forward;
GazeImage.fillAmount = 0;
}
}
// Update is called once per frame
void Update()
{
Ray ray = new Ray(transform.position, transform.forward);
RaycastHit hit;
//如果碰撞到了物体
if (Physics.Raycast(ray, out hit, 50))
{
//将碰撞的位置赋给准星
reticleCanvas.transform.position = hit.point;
//根据距离进行缩放，补偿在3d世界中近大远小的情况
reticleCanvas.transform.localScale = originScale * hit.distance * 2;
//让准星与碰撞的物体垂直通过让准星与击中点法线方向一致
reticleCanvas.transform.forward = hit.normal;
//视线初次进入
if (hit.transform.gameObject != target)
{
//如果上次的目标物体不为空，进行移出的操作
if (target != null)
{
VRGazeItem oldItem = target.GetComponent <VRGazeItem>();
if (oldItem)
{
oldItem.GazeOut();
}
}
//将击中的目标赋给当前的目标物体
target = hit.transform.gameObject;
//获取物体上的凝视组件
VRGazeItem newItem = target.GetComponent <VRGazeItem>();
//如果有凝视组件
if (newItem)
{
//凝视
newItem.GazeIn();
}
}
else//视线在此停留
{
currentTime += Time.deltaTime;
//设定时间未结束
if (countDownTime - currentTime > 0)
{
//设置进度条
reticleImage.fillAmount = currentTime / countDownTime;
}
else//达到设定条件
{
currentTime = 0;
//如果
VRGazeItem gazeFireItem = target.GetComponent <VRGazeItem>();
if (gazeFireItem)
{
gazeFireItem.GazeFire(hit);
}
}
}
}
//没有碰撞到物体
else
{
reticleCanvas.transform.localPosition = originPos;
//缩放复位
reticleCanvas.transform.localScale = originScale;
//准星方向复位
reticleCanvas.transform.forward = Camera.main.transform.forward;
reticleImage.fillAmount = 0;
currentTime = 0;
}
}
