diff -r ca23936b455b -r 5d201ee4a9c3 src/geometry.h
--- a/src/geometry.h	Mon Jun 06 22:01:22 2022 +0300
+++ b/src/geometry.h	Tue Jun 07 01:37:26 2022 +0300
@@ -2,176 +2,172 @@
 #include <QPolygonF>
 #include "basics.h"
 
-namespace geom
+struct Plane
+{
+	glm::vec3 normal;
+	glm::vec3 anchor;
+};
+
+template<int N, typename T = float, glm::qualifier Q = glm::defaultp>
+struct Line
+{
+	glm::vec<N, T, Q> direction;
+	glm::vec<N, T, Q> anchor;
+};
+
+template<int N, typename T = float, glm::qualifier Q = glm::defaultp>
+struct Ray
+{
+	glm::vec<N, T, Q> direction;
+	glm::vec<N, T, Q> anchor;
+};
+
+inline const glm::vec3 origin = {0, 0, 0};
+inline const Plane XY = {{0, 0, 1}, origin};
+inline const Plane XZ = {{0, 1, 0}, origin};
+inline const Plane YZ = {{1, 0, 0}, origin};
+
+struct LineSegment
+{
+	glm::vec3 p1, p2;
+};
+struct Triangle
+{
+	glm::vec3 p1, p2, p3;
+};
+struct Quadrilateral
 {
-	struct Plane
-	{
-		glm::vec3 normal;
-		glm::vec3 anchor;
-	};
+	glm::vec3 p1, p2, p3, p4;
+};
+struct ConditionalEdge
+{
+	glm::vec3 p1, p2;
+	glm::vec3 c1, c2;
+};
+struct LineSegment2D
+{
+	glm::vec2 p1, p2;
+};
 
-	template<int N, typename T = float, glm::qualifier Q = glm::defaultp>
-	struct Line
-	{
-		glm::vec<N, T, Q> direction;
-		glm::vec<N, T, Q> anchor;
-	};
+// get polygon type from amount of points
+template<int N>
+struct PolygonType {};
+template<>
+struct PolygonType<2> { using type = LineSegment; };
+template<>
+struct PolygonType<3> { using type = Triangle; };
+template<>
+struct PolygonType<4> { using type = Quadrilateral; };
+template<int N>
+using Polygon = typename PolygonType<N>::type;
+
+/**
+ * @brief Computes a line from two points
+ * @param point_1
+ * @param point_2
+ * @return line
+ */
+template<int N, typename T, glm::qualifier Q>
+Line<N, T, Q> lineFromPoints(const glm::vec<N, T, Q>& point_1, const glm::vec<N, T, Q>& point_2)
+{
+	return {point_2 - point_1, point_1};
+}
 
-	template<int N, typename T = float, glm::qualifier Q = glm::defaultp>
-	struct Ray
-	{
-		glm::vec<N, T, Q> direction;
-		glm::vec<N, T, Q> anchor;
-	};
+template<int N, typename T, glm::qualifier Q>
+Ray<N, T, Q> rayFromPoints(const glm::vec<N, T, Q>& point_1, const glm::vec<N, T, Q>& point_2)
+{
+	return {point_2 - point_1, point_1};
+}
+
+template<int N, typename T, glm::qualifier Q>
+Line<N, T, Q> rayToLine(const Ray<N, T, Q>& ray)
+{
+	return {ray.direction, ray.anchor};
+}
 
-	inline const glm::vec3 origin = {0, 0, 0};
-	inline const Plane XY = {{0, 0, 1}, origin};
-	inline const Plane XZ = {{0, 1, 0}, origin};
-	inline const Plane YZ = {{1, 0, 0}, origin};
+enum class RectangleSide
+{
+	Top,
+	Left,
+	Bottom,
+	Right
+};
+
+struct PointOnRectagle
+{
+	glm::vec2 position;
+	RectangleSide side;
+};
 
-	struct LineSegment
-	{
-		glm::vec3 p1, p2;
-	};
-	struct Triangle
-	{
-		glm::vec3 p1, p2, p3;
-	};
-	struct Quadrilateral
-	{
-		glm::vec3 p1, p2, p3, p4;
+std::optional<glm::vec2> lineLineIntersection(const Line<2>& line_1, const Line<2>& line_2);
+std::optional<glm::vec2> rayLineSegmentIntersection(const Ray<2>& ray, const LineSegment2D& line);
+std::optional<PointOnRectagle> rayRectangleIntersection(const Ray<2>& ray, const QRectF& rectangle);
+Plane planeFromTriangle(const Triangle& triangle);
+glm::vec3 normalVector(const Triangle& triangle);
+std::optional<glm::vec3> linePlaneIntersection(
+	const Line<3>& line,
+	const Plane& plane, const float epsilon = 1e-6f);
+glm::vec3 scalingVector(const glm::mat4 matrix);
+LineSegment2D top(const QRectF& rectangle);
+LineSegment2D bottom(const QRectF& rectangle);
+LineSegment2D left(const QRectF& rectangle);
+LineSegment2D right(const QRectF& rectangle);
+bool isConvex(const std::vector<glm::vec3>& polygon);
+Winding winding(const QPolygonF& polygon);
+struct ScalingExtract
+{
+	glm::vec3 scaling;
+	glm::mat4 unscaled;
+};
+ScalingExtract extractScaling(const glm::mat4& matrix);
+
+struct NPolygon
+{
+	std::vector<glm::vec3> points;
+};
+
+inline constexpr bool isclose(const glm::vec3& a, const glm::vec3& b)
+{
+	return qFuzzyCompare(a.x, b.x)
+		and qFuzzyCompare(a.y, b.y)
+		and qFuzzyCompare(a.z, b.z);
+}
+
+struct CircleF
+{
+	QPointF center;
+	qreal radius;
+};
+
+/**
+ * @brief Inscribes a circle
+ * @param circle
+ * @return a QRectF that inscribes the specified circle
+ */
+inline constexpr QRectF inscribe(const CircleF& circle)
+{
+	return {
+		circle.center.x() - circle.radius,
+		circle.center.y() - circle.radius,
+		circle.radius * 2,
+		circle.radius * 2
 	};
-	struct ConditionalEdge
-	{
-		glm::vec3 p1, p2;
-		glm::vec3 c1, c2;
-	};
-	struct LineSegment2D
-	{
-		glm::vec2 p1, p2;
-	};
-
-	// get polygon type from amount of points
-	template<int N>
-	struct PolygonType {};
-	template<>
-	struct PolygonType<2> { using type = LineSegment; };
-	template<>
-	struct PolygonType<3> { using type = Triangle; };
-	template<>
-	struct PolygonType<4> { using type = Quadrilateral; };
-	template<int N>
-	using Polygon = typename PolygonType<N>::type;
+}
 
-	/**
-	 * @brief Computes a line from two points
-	 * @param point_1
-	 * @param point_2
-	 * @return line
-	 */
-	template<int N, typename T, glm::qualifier Q>
-	Line<N, T, Q> lineFromPoints(const glm::vec<N, T, Q>& point_1, const glm::vec<N, T, Q>& point_2)
-	{
-		return {point_2 - point_1, point_1};
-	}
-
-	template<int N, typename T, glm::qualifier Q>
-	Ray<N, T, Q> rayFromPoints(const glm::vec<N, T, Q>& point_1, const glm::vec<N, T, Q>& point_2)
-	{
-		return {point_2 - point_1, point_1};
-	}
-
-	template<int N, typename T, glm::qualifier Q>
-	Line<N, T, Q> rayToLine(const Ray<N, T, Q>& ray)
-	{
-		return {ray.direction, ray.anchor};
-	}
-
-	enum class RectangleSide
+struct BezierCurve
+{
+	glm::vec3 points[4];
+	const glm::vec3& operator[](int x) const
 	{
-		Top,
-		Left,
-		Bottom,
-		Right
-	};
-
-	struct PointOnRectagle
-	{
-		glm::vec2 position;
-		RectangleSide side;
-	};
-
-	std::optional<glm::vec2> lineLineIntersection(const Line<2>& line_1, const Line<2>& line_2);
-	std::optional<glm::vec2> rayLineSegmentIntersection(const Ray<2>& ray, const LineSegment2D& line);
-	std::optional<PointOnRectagle> rayRectangleIntersection(const Ray<2>& ray, const QRectF& rectangle);
-	Plane planeFromTriangle(const Triangle& triangle);
-	glm::vec3 normalVector(const Triangle& triangle);
-	std::optional<glm::vec3> linePlaneIntersection(
-		const Line<3>& line,
-		const Plane& plane, const float epsilon = 1e-6f);
-	glm::vec3 scalingVector(const glm::mat4 matrix);
-	LineSegment2D top(const QRectF& rectangle);
-	LineSegment2D bottom(const QRectF& rectangle);
-	LineSegment2D left(const QRectF& rectangle);
-	LineSegment2D right(const QRectF& rectangle);
-	bool isConvex(const std::vector<glm::vec3>& polygon);
-	Winding winding(const QPolygonF& polygon);
-	struct ScalingExtract
-	{
-		glm::vec3 scaling;
-		glm::mat4 unscaled;
-	};
-	ScalingExtract extractScaling(const glm::mat4& matrix);
-
-	struct NPolygon
-	{
-		std::vector<glm::vec3> points;
-	};
-
-	inline constexpr bool isclose(const glm::vec3& a, const glm::vec3& b)
+		Q_ASSERT(x >= 0 and x < 4);
+		return this->points[x];
+	}
+	glm::vec3& operator[](int x)
 	{
-		return qFuzzyCompare(a.x, b.x)
-			and qFuzzyCompare(a.y, b.y)
-			and qFuzzyCompare(a.z, b.z);
+		Q_ASSERT(x >= 0 and x < 4);
+		return this->points[x];
 	}
-
-	struct CircleF
-	{
-		QPointF center;
-		qreal radius;
-	};
+};
 
-	/**
-	 * @brief Inscribes a circle
-	 * @param circle
-	 * @return a QRectF that inscribes the specified circle
-	 */
-	inline constexpr QRectF inscribe(const CircleF& circle)
-	{
-		return {
-			circle.center.x() - circle.radius,
-			circle.center.y() - circle.radius,
-			circle.radius * 2,
-			circle.radius * 2
-		};
-	}
-
-	struct BezierCurve
-	{
-		glm::vec3 points[4];
-		const glm::vec3& operator[](int x) const
-		{
-			Q_ASSERT(x >= 0 and x < 4);
-			return this->points[x];
-		}
-		glm::vec3& operator[](int x)
-		{
-			Q_ASSERT(x >= 0 and x < 4);
-			return this->points[x];
-		}
-	};
-
-	glm::vec3 pointOnCurve(const BezierCurve& curve, float t);
-	glm::vec3 derivativeOnCurve(const BezierCurve& curve, float t);
-}
-using namespace geom;
+glm::vec3 pointOnCurve(const BezierCurve& curve, float t);
+glm::vec3 derivativeOnCurve(const BezierCurve& curve, float t);