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1. • CommentAuthorBorisTheBrave
   • CommentTimeFeb 9th 2009

    
   I think you're gonna like this..
   I've released a library that ties the Box2D Flash physics engine in with Flint. With a few lines of code, you can have Box2D's full power while still using all the Flint primitives you are used to.
   
   More details are here, with a demo available.
   
   If you click twice on the demo, you'll find the "Flint only" example, aimed at Flint users. I append the bulk of the source for that to give you an idea how simple it is to get started.
   

   
   BodyRenderer.defaultScale = 10;
   
   //Create a Flint emitter and initialize it with some standard particles stuff
   emitter = new Emitter2D();
   emitter.counter = new Steady( 15 );
   emitter.addInitializer(new Position(new DiscZone(new Point(0,0),30,30)));
   emitter.addActivity(new FollowMouse(this));
   emitter.addAction(new MutualGravity(3, 100));
   emitter.addInitializer(new Velocity(new DiscZone(new Point(0, 0), 10, 10)));
   emitter.addInitializer(new ImageClass(Dot, 10));
   emitter.addInitializer(new Lifetime(2, 20));
   emitter.addAction(new Fade());
   emitter.addAction(new Age());
   
   //Use a physics activity, and keep a reference to it.
   var physics:Physics = new Physics();
   emitter.addActivity(physics);
   //Lets give the position solver a bit more pep, as we are creating lots of overlapping shapes
   physics.positionIterations = 30;
   
   emitter.addInitializer(new CollisionRadiusInit(10));
   emitter.addInitializer(new CircleInit(physics.world));
   
   renderer = new DisplayObjectRenderer();
   addChild(renderer as DisplayObjectRenderer);
   renderer.addEmitter(emitter);
   
   emitter.start();
   

   
   
   I'm afraid for more complicated effects, you'll actually need to learn something about Box2D, but nonetheless, I think it's a fairly easy system to use.
2. • CommentAuthorRichard
   • CommentTimeFeb 11th 2009

    
   Fabulous.