/// <summary>
/// Finds all targetable objects in the scene. NOTE: this is expensive; don't do every frame!
/// Anything too far away or outside the player's FOV is ignored and not included in the set
/// of possible targets.
/// </summary>
void ScanSceneForTargets()
{
timeUntilScan = delayBetweenScans; // reset timer
ThingToShoot[] targets = FindObjectsOfType <ThingToShoot>();
possibleTargets.Clear();
float fovThreshold = AnimMath.Map(viewFOV, 0, 180, 1, 0);
foreach (ThingToShoot target in targets)
{
Vector3 dis = target.transform.position - visionOrigin.position;
bool tooFarAway = (dis.sqrMagnitude > viewDistance * viewDistance);
bool outsideOfFOV = (Vector3.Dot(transform.forward, dis.normalized)) < fovThreshold;
if (!tooFarAway && !outsideOfFOV)
{
possibleTargets.Add(target);
}
}
//print(possibleTargets.Count);
}
