3 ms·

I like using PID controllers for this kind of thing. They make it easy to get "authentic" looking behavior. By tuning the params you can adjust to behave anywhe

by MrLeap 4y ago

I like using PID controllers for this kind of thing. They make it easy to get "authentic" looking behavior. By tuning the params you can adjust to behave anywhere from smooth like silk to wild overcorrections. They look really lively, I'll post a video on twitter or something. https://en.wikipedia.org/wiki/PID_controller https://en.wikipedia.org/wiki/PID_controller

fho 4y ago
I just read [this](http://brettbeauregard.com/blog/2011/04/improving-the-beginners-pid-introduction/ http://brettbeauregard.com/blog/2011/04/improving-the-beginn...) yesterday. It details the effort that went into making the Arduino PID library more robust compared to the "beginners PID".
- themeiguoren 4y ago
  As a controls engineer, this is still the best one-stop shop I’ve found for making PIDs a lot more usable & robust. There’s a few things I’d add but this covers the major bases.
  - fho 4y ago
    So ... what would you add? :-)
TheRealPomax 4y ago
Yeah but now you made tuning the PID parameters your day job =(
- HelloNurse 4y ago
  If you like machine learning, you can simulate the game in suitable test scenarios and evolve high-performance missile controllers. Like in real life at the firing range, without engineers. Of course, bad controllers that can be exploited by the player to make missiles miss are usually fun, as are slight variations of PID parameters in the same missile salvo, to disperse them organically.
- MrLeap 4y ago
  If tuning to taste gets old, just use an infinite series of PID controllers to tune your PID parameters.
  - TheRealPomax 4y ago
    And that's how an XKCD comic gets born.
mwkaufma 4y ago
I wrote about those ages ago, when I was working on the game ABZU https://www.tumblr.com/giantsquidology-blog/144615245984/fluid-motion-in-abz%C3%BB https://www.tumblr.com/giantsquidology-blog/144615245984/flu...
- camtarn 4y ago
  Heh, great article! One of those engineering efforts where you're trying to get to the point where the user doesn't notice any of the fancy math, just that the controls always seem to Do the Right Thing.

by MrLeap 4y ago

fho 4y ago

I just read [this](http://brettbeauregard.com/blog/2011/04/improving-the-beginners-pid-introduction/ http://brettbeauregard.com/blog/2011/04/improving-the-beginn...) yesterday. It details the effort that went into making the Arduino PID library more robust compared to the "beginners PID".

themeiguoren 4y ago
As a controls engineer, this is still the best one-stop shop I’ve found for making PIDs a lot more usable & robust. There’s a few things I’d add but this covers the major bases.
- fho 4y ago
  So ... what would you add? :-)

TheRealPomax 4y ago

Yeah but now you made tuning the PID parameters your day job =(

HelloNurse 4y ago
If you like machine learning, you can simulate the game in suitable test scenarios and evolve high-performance missile controllers. Like in real life at the firing range, without engineers. Of course, bad controllers that can be exploited by the player to make missiles miss are usually fun, as are slight variations of PID parameters in the same missile salvo, to disperse them organically.
MrLeap 4y ago
If tuning to taste gets old, just use an infinite series of PID controllers to tune your PID parameters.
- TheRealPomax 4y ago
  And that's how an XKCD comic gets born.

mwkaufma 4y ago

I wrote about those ages ago, when I was working on the game ABZU https://www.tumblr.com/giantsquidology-blog/144615245984/fluid-motion-in-abz%C3%BB https://www.tumblr.com/giantsquidology-blog/144615245984/flu...

camtarn 4y ago
Heh, great article! One of those engineering efforts where you're trying to get to the point where the user doesn't notice any of the fancy math, just that the controls always seem to Do the Right Thing.