void Update()
{
if (Input.GetButton("Fire1")) // Fire1按键是鼠标左键或左Ctrl键
{
Ray ray = cam.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
// layerMask参数使这个射线只能打中指定layer的物体
if (Physics.Raycast(ray, out hit, Mathf.Infinity, layerMask))
{
if (hit.transform.gameObject.layer == 8)
{ // 通过hit获取到了击中物体所在的层
UFOController UFOCtrl = hit.transform.GetComponent <UFOScript>().ctrl;
sceneController.UFOIsShot(UFOCtrl); // 通知sceneController
}
else if (hit.transform.gameObject.layer == 9)
{
sceneController.GroundIsShot(hit.point);
}
}
if (muzzleFlashEnable == false) // 显示枪口火焰
{
muzzleFlashEnable = true;
muzzleFlash.SetActive(true);
}
}
if (muzzleFlashEnable) // 计时，枪口火焰显示0.1秒后消失
{
muzzleFlashTimer += Time.deltaTime;
if (muzzleFlashTimer >= muzzleFlashMaxTime)
{
muzzleFlashEnable = false;
muzzleFlash.SetActive(false);
muzzleFlashTimer = 0;
}
}
}