environmental citybuilder prototype

Cat Flynn 2bc92d9580 add selection mode ui #5		2022-12-09 00:37:47 +00:00
half-earth	add selection mode ui #5	2022-12-09 00:37:47 +00:00
.gitignore	add gitignore	2022-12-03 16:26:13 +00:00
gdd.md	change to build mode with keyboard shortcuts #5	2022-12-09 00:37:47 +00:00