Hex Map 7, a Unity C# Tutorial
Roads Add support for roads. Triangulate roads. Combine roads and rivers. Give roads a rugged appearance. Like rivers, roads go from cell to cell, through the middle of cell edges. The big difference is that roads don't have flowing water, so they're bidirectional.
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Hex Map 7: Roads
After tackling rivers, it is time to add a road network to our map. And of course rivers and roads have to play nice.