--- a/src/geometry.h Wed Jun 08 20:41:21 2022 +0300
+++ b/src/geometry.h Wed Jun 08 22:29:44 2022 +0300
@@ -1,6 +1,32 @@
#pragma once
#include <QPolygonF>
-#include "basics.h"
+#include <glm/glm.hpp>
+#include <optional>
+
+enum Winding
+{
+ NoWinding,
+ Anticlockwise,
+ Clockwise,
+};
+
+//! \brief XOR operator for winding
+constexpr Winding operator^(Winding one, Winding other)
+{
+ if (one == NoWinding or other == NoWinding) {
+ return NoWinding;
+ }
+ else {
+ const int xored = static_cast<int>(one) ^ static_cast<int>(other);
+ return static_cast<Winding>(xored);
+ }
+}
+
+constexpr Winding& operator^=(Winding& one, Winding other)
+{
+ one = one ^ other;
+ return one;
+}
struct Plane
{