##header##
name: foo.map
author: baz
size: 250x300
tileset: forest

0=ground1.jpg
1=ground2.jpg
2=trees1.jpg
3=trees2.jpg
//etc etc
##endheader##

0 0 0 0 1 1 1 0 0 0 1 2 2 3 3 2 3 3 //etc