OctTree can check if a box collides with a box in the OctTree.

include/Engine/Core/OctTree.h

@@ -20,17 +20,21 @@ public:
     void ClearBoxes();
     //Returns true if the ray collides with something in the tree. Result is written to [data].
     bool RayCollides(const Ray& ray, Output& data) const;
+    //Returns true if the box collides with something in the tree. 
+    //On collision with a box, that box is written to [outBoxIntersected].
+    bool BoxCollides(const AABB& boxToTest, AABB& outBoxIntersected) const;
 
 private:
     OctTree* m_Children[8];
-    std::vector<AABB> m_ContainingBoxes;
     //TODO: Do derived class from AABB with a bool Tested, falsify at 
     //start of Collision test, set on check, don't check if set already. Solves duplicate boxes in tree.
+    //TODO: Boxes collide with themselves? Fix somehow, maybe float epsilon stuff.
+    std::vector<AABB> m_ContainingBoxes;
     AABB m_Box;
-    
-    bool rayCollides(const Ray& ray, Output& data) const;
+
     inline bool hasChildren() const;
     int childIndexContainingPoint(const glm::vec3& point) const;
+    std::vector<int> childIndicesContainingBox(const AABB& box) const;
 };
 
 #endif