[dobin]

The nice thing about using an event system is that you can just record all events. This allows you to record gameplay directly. This can be used as a demo, scripted scenes, and especially for debugging! Encountering a bug during playing? The recording can be used to reproduce the bug, as it will be a "pixel perfect" playback. Code until it is gone. Debugging is suddenly way easier, as you can just check the events wireshark/tcpdump style, and see what went wrong.

Even more, in networked games it can be used to roll-back actions you did (e.g. because someone with a 100ms ping shot you 50ms before launching a rocket, to roll-back rocket-launching animation). Or in the simulations of the behaviour of the other players (peeking around the wall).

[dj_mc_merlin]

Yep, I wasn't attacking event systems, they definitely allow a lot of cool behaviour. My approach was chosen since it was simpler, and for a solo project where I will have to dedicate months/years anyway, I choose to cut on non essential stuff that I might never use. I'd rather have something playable in a couple months to be able to prototype more, I can figure out what I need to add after.