I completely rewrote the main generation stuff in my map generator to use the diamond-square algorithm rather than more basic two colour fractal noise. It makes much more random, much nicer looking stuff but it's more difficult to control. Height values for each pixel also made adding rivers really easy. Everything could do with some tweaking though, as usual, and I'm not entirely satisfied with the rivers yet. Download it here: http://rapidshare.com/files/408250592/mapgenerator.zip.html
