Wrote a potentially buggy algorithm

This algorithm is designed to find the distance of a certain region,
however it may have been better to do a quick check, rather than worrying
how many regions were loaded at once.

client/scenes/in_world.hpp

@@ -87,6 +87,7 @@ protected:
 	void RequestRegion(int x, int y);
 
 	//utilities
+	int CheckBufferDistance(Region* const);
 	void UpdateMap();
 	void ForNearbyRegions(std::function<void (Region* const)> func);