void UpdateCrosshair()
{
RaycastHit hit;
Crosshair crossHair = this.gameObject.GetComponentInParent <Crosshair>();
if (Physics.Raycast(mainCamera.ScreenPointToRay(screenPos), out hit, hitDistance))
{
if (hit.collider.gameObject.GetComponent <Target> () != null || hit.collider.gameObject.GetComponentInParent <Target> () != null)
{
crossHair.OnRadar();
}
else
{
crossHair.OffRadar();
}
}
else
{
crossHair.OffRadar();
}
}
