mini golf

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+---
+author: admin
+categories:
+- Non-Technical
+date: 2025-11-22
+tags:
+- hack-a-day
+- videogame
+- game
+slug: hack-a-golf
+title: "Hack-a-Day, Day 22: Hack-a-Golf"
+---
+
+[Hack-a-Day](https://za3k.com/hackaday) is my self-imposed challenge to do one project a day, for all of November.
+
+[![caption: computer mini-golf)](golf.png)](https://za3k.github.io/hack-a-golf/)
+
+Today's project was mini-golf. I've seen these online, and I thought it was an easy problem (I was mostly right).
+
+It turns out finding the intersection of two lines is really hard, though! It kind of seems easy mathematically, but in practice it's really fiddly with a lot of edge cases. Reflecting is also harder to figure out on a computer than by hand.
+
+My little demo only has one level, but the hard part was the engine -- adding 8 more holes would be pretty easy, I think. There's no hilly slopes or other special features in this verion.
+
+I stayed up too late finishing this one, heh. You can play [online here](https://za3k.github.io/hack-a-golf/) or view the source code [on github](https://github.com/za3k/hack-a-golf).
+
+[![caption: the path of a ball without friction)](golf-screensaver.png)](https://za3k.github.io/hack-a-golf/index.html?screensaver)