Colinear function

bool Colinear(Vector2 a, Vector2 b, Vector2 c)

Implementation

bool Colinear(final VM.Vector2 a, final VM.Vector2 b, final VM.Vector2 c) {
  VM.Vector2 ab = a - b;
  VM.Vector2 bc = b - c;
  return ab.cross(bc) == 0.0;
}