[Munkey]

OK, here are my thoughts on this. Have a tileset zip pack that needs to be downloaded in order to leave the onlinestartlocal. *simple flag manipulation* and that would solve the download problem... unless they didn't unzip it.

For the scripting command. Have a text file that defines what tiles are walkable, what are lava, what are water, and what are wall tiles.
The command itself would look like this for a desert pics1.png if (playerenters) {settileset picsdesert.png,deserttiles.txt;}