'I took those files and deleted them': Former Sims 4 developer says he totally rewrote the sims' AI in the middle of development and 'that was a scary thing to do'

It's an accepted fact by Sims players that no matter how well you think you know the game, sims have a mind of their own. Sometimes you can wrestle them into behaving the way you want with arcane tricks of furniture placement or by installing mods. If you're one of Maxis' programmers, though, and you're in an "ask for forgiveness instead of permission" kind of mood, maybe you just rewrite the entire under-the-hood AI in about a week during development.

Former Maxis developer David "Rez"...