improved traceline

include/omath/collision/LineTracer.hpp

@@ -2,14 +2,25 @@
 // Created by Orange on 11/13/2024.
 //
 #pragma once
+#include <optional>
+
 #include "omath/Vector3.hpp"
 #include "omath/Triangle3d.hpp"
+
+
 namespace omath::collision
 {
-    struct Ray
+    class Ray
     {
+    public:
         Vector3 start;
         Vector3 end;
+
+        [[nodiscard]]
+        Vector3 DirectionVector() const;
+
+        [[nodiscard]]
+        Vector3 DirectionVectorNormalized() const;
     };
     class LineTracer
     {
@@ -18,5 +29,11 @@ namespace omath::collision
 
         [[nodiscard]]
         static bool CanTraceLine(const Ray& ray, const Triangle3d& triangle);
+
+
+        // Realization of Möller–Trumbore intersection algorithm
+        // https://en.wikipedia.org/wiki/M%C3%B6ller%E2%80%93Trumbore_intersection_algorithm
+        [[nodiscard]]
+        static std::optional<Vector3> GetRayHitPoint(const Ray& ray, const Triangle3d& triangle);
     };
 }