environmental citybuilder prototype

ktyl 4650a5b7f3 diffusion (#12) ... Reviewed-on: #12		2022-12-09 01:36:47 +01:00
half-earth	diffusion (#12)	2022-12-09 01:36:47 +01:00
.gitignore	add gitignore	2022-12-03 16:26:13 +00:00
gdd.md	diffusion (#12)	2022-12-09 01:36:47 +01:00