Method Overlaps

util.go:569–578

Overlaps returns true if both rectangles overlap.

(q Rect)

// Overlaps returns true if both rectangles overlap.
func (r Rect) Overlaps(q Rect) bool {
	if q.X1 <= r.X0 || r.X1 <= q.X0 {
		// left or right
		return false
	} else if q.Y1 <= r.Y0 || r.Y1 <= q.Y0 {
		// below or above
		return false
	}
	return true
}

// Touches returns true if both rectangles touch (or overlap).
func (r Rect) Touches(q Rect) bool {