Add support to reload the config (#868)

dPhysics/dpGrid.h

@@ -23,6 +23,15 @@ public:
 
 	void Update(float deltaTime);
 
+	/**
+	 * Sets the delete grid parameter to value.  When false, the grid will not clean up memory.
+	 *
+	 * @param value Whether or not to delete entities on deletion of the grid.
+	 */
+	void SetDeleteGrid(bool value) { this->m_DeleteGrid = value; };
+
+	std::vector<std::vector<std::forward_list<dpEntity*>>> GetCells() { return this->m_Cells; };
+
 private:
 	void HandleEntity(dpEntity* entity, dpEntity* other);
 	void HandleCell(int x, int z, float deltaTime);
@@ -31,4 +40,5 @@ private:
 	//cells on X, cells on Y for that X, then another vector that contains the entities within that cell.
 	std::vector<std::vector<std::forward_list<dpEntity*>>> m_Cells;
 	std::map<LWOOBJID, dpEntity*> m_GargantuanObjects;
+	bool m_DeleteGrid = true;
 };