2020-10-10 Adding rivers to the post-apocalyptic maps

Still unsure about the colour of rivers but there are now rivers in the post-apocalyptic maps. As this map algorithm doesn’t have an underlying height model (unlike the Alpine maps), the river flow is much more random:

• every mountain is a source, every swamp is a sink (this is where all rivers end)
• no rivers flow into mountains or into deserts
• rivers merge if they run into each other
• rivers never flow off the map

For such a simplistic algorithm, it doesn’t even look so bad!

Random post-apocalyptic maps

Image 1

​#RPG ​#Maps ​#Text Mapper