Added functions to test ray vs triangle- and model-intersections.

include/Engine/Core/Collision.h

@@ -1,17 +1,43 @@
 #ifndef Collision_h__
 #define Collision_h__
 
+#include <vector>
+
 #include "Core/Ray.h"
 #include "Core/AABB.h"
+#include "Engine/Rendering/RawModel.h"
 
 namespace Collision
 {
-
+//Return true if the ray hits the box.
 bool RayAABBIntr(const Ray& ray, const AABB& box);
 bool RayVsAABB(const Ray& ray, const AABB& box);
+//Return true if the ray hits the box, also outputs distance from ray origin to intersection point in [outDistance].
 bool RayVsAABB(const Ray& ray, const AABB& box, float& outDistance);
 
+//Return true if the ray hits any of the triangles in the model. Stops checking when a hit is detected.
+bool RayVsModel(const Ray& ray, 
+    const std::vector<RawModel::Vertex>& modelVertices,
+    const std::vector<unsigned int>& modelIndices);
+//Return true if the ray hits any of the triangles in the model.
+//Also returns the position of the intersection point. Will loop through all the whole model indices.
+bool RayVsModel(const Ray& ray,
+    const std::vector<RawModel::Vertex>& modelVertices,
+    const std::vector<unsigned int>& modelIndices,
+    glm::vec3& outHitPosition);
+//Return true if the ray hits any of the triangles in the model.
+//Also returns the distance from the ray origin to the closest 
+//intersection point, and the barycentric u,v-coordinates. Will loop through all the whole model indices.
+bool RayVsModel(const Ray& ray,
+    const std::vector<RawModel::Vertex>& modelVertices,
+    const std::vector<unsigned int>& modelIndices,
+    float& outDistance,
+    float& outUCoord,
+    float& outVCoord);
+
+//Return true if the boxes are intersecting.
 bool AABBVsAABB(const AABB& a, const AABB& b);
+
 }
 
 #endif