public float IntersectsAt(PlaneMath plane)
{
Coords N = TMath.Cross(plane.u, plane.v);
Coords AB = plane.A - A;
if (TMath.Dot(N, v) == 0)
{
return(float.NaN);
}
float t = TMath.Dot(N, AB) / TMath.Dot(N, v);
return(t);
}
public Coords Reflect(Coords normal)
{
//R = A - 2(A.N)N
Coords norm = normal.GetNormal();
Coords vnorm = v.GetNormal();
float d = TMath.Dot(norm, vnorm) * 2;
if (d == 0)
{
return(v);
}
return(vnorm - norm * d);
}
public float IntersectsAt(Line l)
{
if (TMath.Dot(Coords.Perp(l.v), v) == 0)
{
return(float.NaN);
}
Coords c = l.A - this.A;
float t = TMath.Dot(Coords.Perp(l.v), c) / TMath.Dot(Coords.Perp(l.v), v);
if (t < 0 || t > 1 && type == LINETYPE.SEGMENT)
{
return(float.NaN);
}
return(t);
}
