aabbContainsLine method

bool aabbContainsLine(double x1, double y1, double x2, double y2,)

Checks if the line between the two coordinates is contained within the Bounds.

Implementation

bool aabbContainsLine(double x1, double y1, double x2, double y2) {
  // Completely outside.
  if ((x1 <= min.x && x2 <= min.x) ||
      (y1 <= min.y && y2 <= min.y) ||
      (x1 >= max.x && x2 >= max.x) ||
      (y1 >= max.y && y2 >= max.y)) {
    return false;
  }

  final m = (y2 - y1) / (x2 - x1);

  double y = m * (min.x - x1) + y1;
  if (y > min.y && y < max.y) return true;

  y = m * (max.x - x1) + y1;
  if (y > min.y && y < max.y) return true;

  double x = (min.y - y1) / m + x1;
  if (x > min.x && x < max.x) return true;

  x = (max.y - y1) / m + x1;
  if (x > min.x && x < max.x) return true;

  return false;
}