1 files changed, 22 insertions, 0 deletions
diff --git a/lib/geometricPlane.h b/lib/geometricPlane.h
new file mode 100644
index 0000000..dc8df50
--- /dev/null
+++ b/lib/geometricPlane.h
@@ -0,0 +1,22 @@
+#pragma once
+
+#include <glm/vec3.hpp>
+#include <optional>
+
+class Ray;
+
+class GeometricPlane {
+public:
+	struct DistAndPosition {
+		float dist;
+		glm::vec3 position;
+	};
+	enum class PlaneRelation { Above, Below, On };
+
+	glm::vec3 origin, normal;
+
+	PlaneRelation getRelation(glm::vec3 point) const;
+	std::optional<DistAndPosition> getRayIntersectPosition(const Ray &) const;
+
+	static bool isIntersect(PlaneRelation a, PlaneRelation b);
+};