Weighted/Biased Random Number Generation with JavaScript based on Probability

weighted random post image

First of all what is weighted random ? Let’s say you have a list of items and you want to pick one of them randomly. Doing this seems easy as all that’s required is to write a little function that generates a random index referring to one of the items in the list. Sometimes plain randomness is not enough, we want random results that are biased or based on some probability. This is where a simple weighted random generation algorithm can be used.

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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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17 Neat HTML5 Games To Keep You Busy This Weekend

Flash games are old and technology is advancing. I have collected some amazing HTML5 games that you can play this weekend and keep yourself busy. They are in random order (no ranking or anything else). Make sure you are using a modern browser that supports HTML5 and Canvas.

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How I Created My Version of Doodle Jump in HTML5

I’ll try to take you through my process of re-creating the famous Doodle Jump (which was originally released for mobile platforms) in HTML5 from scratch. The entire write up might help you with creating your own games from scratch!

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