This Work is based on
https://github.com/losetear/nmap
through MIT-LICENSE
losetear's work:organized the development files from staff0rd.
https://github.com/staff0rd/polygon-map-unity
through MIT-LICENSE
staff0rd's work:the MAIN basic work, my work is improved and customized based on his code.
https://github.com/jceipek/Unity-delaunay
through MIT-LICENSE
jceipek's work:provides basic mathematical methods.
http://alienryderflex.com/polygon_fill/
To be honest, I don't know! I get this from staff0rd's work and he gives a MIT license for his work. Considering there is several digital games are using these functions, so I think it is legal to use it in my work.
Polygon Fill Algorithm provided by Darel Rex Finley
https://polyhaven.com/a/snow_field_aerial
snow_field_aerial_nor_gl_2k Texture is got under CC0 License