#collision-detection

2026

Shmup Devlog #5 - Collisions, Part Trois Oct 27 Circles and boxes fit some sprites badly. This post adds convex-hull colliders: the separating axis test, a swept test with conservative advancement and GJK, and a tool that builds the hulls from the sprites.
Shmup Devlog #4 - Collisions, Part Deux Sep 18 Fast bullets flew through enemies without hitting them. This post explains why and adds a swept collision test for every pair the simple check misses.
Shmup Devlog #3 - Collisions Apr 26 This post is about benchmarking the collision detection system, comparing the brute-force approach to a spatial hash grid approach.