Category Archives: Algorithms

How to Create a Roller Coaster Game in HTML5

You can learn here how you can develop your own roller coaster game in HTML5, writing it from scratch in typescript or javascript. This tutorial is structured in 3 sections: Drawing Rail Segments, Generate Roller Coaster Rail Using Bezier Curves and Implementing the Roller Coaster Physics.

Shuffle/Randomize Array/Vector in AS3

As3 Array/Vector classes don’t provide an implemented method to shuffle/randomize them. However, that’s not a hard task to do and there are quite a few methods to implement such an algorithm. One of the easiest methods is called Fisher-Yates shuffle. Probably it’s not the fastest way to shuffle an array,… Read more »

Bounding Box of a Rotated Rectangle

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In action script is possible to find out the bounding box of a rotated sprite(rectangles can be used as well) using DisplayObject.getBounds method. In this post I’ll show a pure mathematic/geometrical approach. It has the advantages that can be ported in other languages, can be used independently of AS3 display… Read more »