Multi-Layer Levels

[oinknessx]

This is an idea I have had for a long time.

Right now the levels are flat. I had an idea so that you could build three levels in one, however the middle level is the flat one, there is a level above that where you can put stuff that would usually be above the player (bridges, house roofs, etc) that the player would walk under, BUT if the player entered the top layer (by stairs?) then he could walk on the bridge and also maybe on roofs.

There would also be another layer below the main level, like if someone was going to make an underground cave or something. It would be useful because, like on GK, the underground dungeons would be in the same level as the main overworld.. And the houses would be on the upper level.. So it would actually be VERY useful but the filesize on levels might get a little bigger, but that's ok (since it would actually be like having more than one level)

It's a great idea, what do you think? That will atleast make it easier to do things like having a roofed entrance, like castle bridges and stuff going from pillar to pillar that you can walk on and walk under!