Is it possible to get a system variable who holds the x and y dimensions of the currently loaded map?
Something like mapsize.x and mapsize.y would be neat.
Right now I have to define my own variable manually in each map start function.
And I'm lazy. I would prefer if Vecna would do my work :)

Good question. I'll try it.

Edit: Tested Omnis suggestion.
Verge returns zero if you are using GetTile() "outside" the map. Problem is that zero is also the index number for the very first tile in the VSP.
So, to get the map dimension you have to place a "special" tile, let's say number 69, at the end of the first row, and at the end of the first column, and check specifically for this tile number. AIn't the best solution, but it works until we get map dimension system variables (hopefully).