Re: Height Maps
The flood fill was a wee bit tricky until I figured out how too get the edging done properly. The regular fill with water code just slams in lake hexes and nukes adjoining land - so large areas left you with having to do the bulk by block fill and then the edges painstakingly by hand hex-by-hex. Once I had it sorted to not nuke adjacent land, it worked excellently.
It'll not be a common tool for map makers, but it fills in good sized rivers just fine as well as the large bits of open water.
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