My background has always been Game AI so that was the part I worked 90% of the time. The thing about games is usually, it is hard to just remain on the same gen

My background has always been Game AI so that was the part I worked 90% of the time. The thing about games is usually, it is hard to just remain on the same general code. AI is related to movement, which is related to collision detection and animation, and sometimes you have to go through the rabbit hole deeper and deeper to either try and find a bug or why code doesn't work, or to make something work like you want. In smaller companies, most of the time, Gameplay programmer = Just do whatever it needs to be done, including shaders, AI, sound, etc.