Help with an idea for a system?

[7heDubz]

That five on the Y axis should be up one higher, you get the idea.
Me messing around in paint.net for a few seconds.. perhaps that will do?

Yes, There would technically be no door @ (1,1) In fact there might be alot of odd coordinates, then again your problem isnt solved in any simple way that i see whilst toggling between it and league.