/*
* Get the nearest target within a cone of vision.
* If there are no hazards within the COV, return null.
*/
Transform FindTarget()
{
ArrayList hazards = gameController.GetHazards();
//If there are no current hazards, return null.
if (hazards.Count == 0)
return null;
GameObject closest = null;
//Get closest hazard to lock onto
foreach (GameObject item in hazards) {
if (item != null && item.tag != "Powerup") {
//Check COV
Vector3 direction = item.transform.position - transform.position;
if (Vector3.Angle(transform.forward, direction) <= visionAngle)
{
//Replace 'closest' if null or 'item' is closer.
if (closest == null ||
(closest.transform.position - transform.position).sqrMagnitude >=
(item.transform.position - transform.position).sqrMagnitude)
{
closest = item;
}
}
}
}
if (closest == null)
return null;
return closest.transform;
}