Box2D

The Box2D rigid-body 2D physics engine, ported to Haxe from the Box2DFlash port by Boris the Brave.

The syntax has been updated to follow the standard Haxe convention, for example:

ActionScript

var world:b2World =new b2World (new b2Vec2 (0, 10.0), true);var worldScale:int=30;varbody:b2BodyDef =new b2BodyDef ();body.position.Set (250/ worldScale, 200/ worldScale);body.type= b2Body.b2_dynamicBody;var circle:b2CircleShape =new b2CircleShape (10/ worldScale);var fixture:b2FixtureDef =new b2FixtureDef ();
fixture.shape = circle;
player = world.CreateBody (body);
player.CreateFixture (fixture);

The above ActionScript code would be written like this in Haxe:

Haxe

varworld=newB2World (newB2Vec2 (0, 10.0), true);
varworldScale=30;
varbody=newB2BodyDef ();
body.position.set (250/worldScale, 200/worldScale);
body.type=DYNAMIC_BODY;
varcircle=newB2CircleShape (10/worldScale);
varfixture=newB2FixtureDef ();
fixture.shape=circle;
player=world.createBody (body);
player.createFixture (fixture);

Installation

You can easily install Box2D using haxelib:

haxelib install box2d

To add it to a Lime or OpenFL project, add this to your project file:

<haxelib name="box2d" />

Development Builds

Clone the Box2D repository:

git clone https://github.com/openfl/box2d

Tell haxelib where your development copy of Box2D is installed:

haxelib dev box2d box2d

To return to release builds:

haxelib dev box2d