Boids AS3 Demo

I’ve uploaded the Boid source code. Sorry for the delay. I’ve also included some basic examples of how you can create nice behaviors using the Boid class. If you set Main.as as your document class then you’ll see that within that you can specify the demo to run when you compile.

The basic demos included are:

  • Chase – Boids chase each other
  • Flock – Boids flock together with some wander
  • Graphics – How to use custom graphics with a Boid instance
  • Seek – Boids seek the mouse position
  • Wander – You guessed it, they wander

I’ve commented all of the methods and properties and there is also documentation (open index.html in the docs folder) to get you started. Before you mention it, yes, there is some redundant code ;) (such as the constrainToRect method which doesn’t really work) but I need to do some optimisations anyway so I just left it as is for now, rough and ready.

Download: AS3 Boid Class & Demos Read : Flipping you the Boid »

Posted on 05 May 2009
90 Comments
19 Trackbacks

Shuffle Grid Demo

Drag & Drop the images to shuffle them around… Read : AS3 Shuffle Grid Class »

Posted on 04 Mar 2009
67 Comments
13 Trackbacks
“Easily create two sided 3D DisplayObjects and flip card effects using Flash Player 10 and the new 3D API …”

PaperSprite Demo

I’ve made a couple of small improvements to the PaperSprite class:

  1. The visible face of the plane is updated automatically only when required. This saves on processing load and also means you can just set up the PaperSprite and not have to worry about anything else, just tween the crap out of all its properties and it won’t mind one bit. (Thanks to Jesse for the pointers re. using stage.invalidate for this process)
  2. The back face is now automatically flipped horizontally, so text and graphics are no longer mirrored and will display correctly
  3. I’ve changed the logic which sets the dynamic registration point for the pivot. This should now correctly line up the front and back faces of the 3D plane, regardless of where their individual registration points are.

Also, some people have asked how to use it, so here is a really quick example to get you up and running with PaperSprite if you are not familiar with using classes and are using the Flash IDE to compile your movie:

  1. First, download the PaperSprite class and put the soulwire folder in the same directory as your FLA or source code.
  2. Then paste this code into the main timeline of your FLA:

Read : Double Sided 3D Plane in FP10 »

Posted on 30 Dec 2008
108 Comments
11 Trackbacks

Flow Field with Perlin Noise

It was a rainy Sunday and I found myself playing around with perlin noise for a couple of hours.

The idea was to create a simple flow field using the BitmapData perlinNoise method, and use this to influence the movement of autonomous agents. There is no complex vector math or steering behaviours, just some simple logic for how a particle or agent reacts to the current pixel it is positioned over. Read : Perlin Noise Flow Field »

Posted on 14 Dec 2008
30 Comments
6 Trackbacks

Bitmap Alpha Channel Masking using CopyPixels

Original image by Edwin Tofslie

I was having a few gradient alpha mask disabilities today and thought I should share my misery and consequential solution with anyone who might run into the same problems! Read : Masking Transparent Bitmaps »

Posted on 10 Dec 2008
Tagged
26 Comments
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About me

Soulwire is a weblog by Justin Windle; a Senior Interactive Developer at Fi (Fantasy Interactive), Stockholm – I often Tweet, Flik, Link and Vim.

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