Add mouse direction getter for CollisionSystem

ECS/Components/MouseLook.h

@@ -11,6 +11,8 @@
 struct MouseLook {
     explicit MouseLook(float sensitivity) : sensitivity(sensitivity) {}
 
+    glm::vec3 get_look_direction() { return glm::mat3_cast(rotation) * glm::vec3(0, 0, -1); }
+
     float sensitivity;
 
     double yaw = 0.0;

ECS/Systems/CollisionSystem.h

@@ -78,8 +78,10 @@ class CollisionSystem : public EntitySystem {
             glm::vec3 origin_glm = transform->get_origin();
             Vector origin = Vector(origin_glm.x, origin_glm.y, origin_glm.z);
 
-            // TODO: Get mouse look direction
-            Ray ray(origin, Vector(0, 0, -3));
+            glm::vec3 direction_glm = mouse_look->get_look_direction();
+            Vector direction = Vector(direction_glm.x, direction_glm.y, direction_glm.z);
+
+            Ray ray(origin, direction * 5.0);
 
             Triangle *result = kdtree->intersect_ray(ray);
 
@@ -87,6 +89,7 @@ class CollisionSystem : public EntitySystem {
                 std::cout << result->p1[0] << ", " << result->p1[1] << ", " << result->p1[2]
                           << std::endl;
             }
+
             // TODO: Also output visually
         });
     }