Add mouse direction getter for CollisionSystem

ECS/Systems/CollisionSystem.h

@@ -81,6 +81,7 @@ class CollisionSystem : public EntitySystem {
             glm::vec3 direction_glm = mouse_look->get_look_direction();
             Vector direction = Vector(direction_glm.x, direction_glm.y, direction_glm.z);
 
+            // TODO: Get mouse look direction
             Ray ray(origin, direction * 5.0);
 
             Triangle *result = kdtree->intersect_ray(ray);
@@ -89,7 +90,6 @@ class CollisionSystem : public EntitySystem {
                 std::cout << result->p1[0] << ", " << result->p1[1] << ", " << result->p1[2]
                           << std::endl;
             }
-
             // TODO: Also output visually
         });
     }