public bool ProcessBarrier(Mp3_TravelingBall b, Transform shadowXform)
{
bool castShadow = false;
if (Barrier.PtInfrontOf(b.GetPosition()))
{
float d = Barrier.DistantToPoint(b.GetPosition());
Vector3 onBarrier = b.GetPosition() - Barrier.GetNormal() * d;
if (Barrier.InActiveZone(onBarrier))
{
castShadow = true;
// first, process shadow
Quaternion q = Quaternion.FromToRotation(Vector3.up, Barrier.GetNormal());
shadowXform.localRotation = q;
shadowXform.localPosition = onBarrier + Barrier.GetNormal() * 0.1f; // slight offet
shadowXform.localScale = new Vector3(1f, 0.1f, 1f);
if (Mathf.Abs(d) < 0.1f) // close enough
{
if (b.TravelTowards(Barrier.GetNormal()))
{
b.ReflectDir(Barrier.GetNormal());
}
}
}
}
return(castShadow);
}