Almost a day has passed, and I’ve been working 12 hours non-stop on my game. Thanks to that most work is already done, you can place structures (and eventually humans), unlock new structures, and humans will die if you’re not building enough. That all completely with collision, boundary wrapping and counters. No kittens yet though.
The most important things (beside kittens) to do now are the weather, title/game over screens, ****ing graphics and sound/music. Hopefully I have enough time tonight to create the weather, so I can spend most of the day on the graphics tomorrow.