How To Use Twitter OAuth with node-oauth in your Node.js / Express Application

I am building a Node.js application where I want the users to be able to signup with their twitter credentials rather than remembering another set of username/pasword. My framework of choice is Expressjs, so I’ll quickly show you how to authenticate the user with twitter’s oauth service in it.

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Games Physics: Basics and Implementation of Predictive (or Continuous) Collision Detection

Few days ago, I wrote a post about why time based animations are better than frame based animations. However, in animations done as a function of time, some serious problems could arise. One of them is that your regular collision detection techniques might fail if the frame rate is lower than acceptable. Your object might pass through the walls or even fall through the floor!

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Time Based Animations in HTML5 Games: Why and How to Implement them

So you got into Web Based Animations or Games (using that HTML5 thingie) and chances are high that you’re relying on setInterval, setTimeout or even better – requestAnimationFrame to reflow and repaint your frames (fancy terms for rendering each animation frame). Precisely, you’re basing your animations or game mechanics on the frame rate. There’s nothing wrong with that, but let me show you a more sophisticated approach which can actually enhance all sorts of user experience – time based animations.
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