Once you bite the bullet and decide to use a physics engine for your game pieces, you are going to have to come to terms with making them move naturally. Getting a handle on handling forces to make ...

(Editor's additional note: if you are not familiar with the principles and analysis of PID control: you should be; It is the most important, studied, understandable, and applied closed-loop control ...

Proportional-integral-derivative (PID) loops are often employed to minimize position error in motion control systems. Typically, they are implemented with floating ...

The tuning of proportional-integral-derivative (PID) control loops was an important change at HollyFrontier’s Navajo Refinery in Artesia, N.M. Its hands-on, “mandraulic” culture was no longer cutting ...

This article discusses an approach to making physics bodies rotate smoothly, whether they are stationary or actively moving. I used cocos2d-x and Box2D, but the basic approach will work for any ...