RealityKit can fire multiple collision events for what looks like a single hit. If you're not careful, one projectile can deal damage dozens of times. Here's a simple fix.

In a top-down game, walls and pillars constantly get between the camera and the player, blocking the view of the player’s character. Here's how I used raycasting and smooth opacity fading to fix it.

Behavior trees pick one thing to do per tick. Chase, patrol, flee. So how do you let enemies attack at the same time? I borrowed a concept from game engines that solved it with surprisingly little code.

I wanted to see how far I could push Apple's frameworks into territory they weren't designed for. It turns out... pretty far.