I was looking around at this site about eight months ago and wish I saved the location of this topic but I was wondering the different map rendering styles that you can do in XNA. The one style I looked at was using a text file to pull characters like "X" would be a monster and "O" would be the player. Is there another way with out an external file that I can put tiles from a sprite sheet to randomly create a map. Of course when dealing with random buildings I would have certain building designs so that if some one was playing they wouldn't see a building with half a wall missing.
This is for a top down 2D game.