Parse an svg file to create a Box2D hit box

b2SVGParser

function b2SVGParser () {

}

b2SVGParser.prototype.parse = function (svg, world, bodyDef, fixtureDef) {
    fixtureDef.shape = new b2PolygonShape();
    var body = world.CreateBody(bodyDef);
    var traverse = function (nodes) {
        var i = -1;
        var node;
        var fixture;
        while ((node = nodes[++i]) !== undefined) {
            switch (node.tagName) {
                case 'line':
                    fixtureDef.shape.SetAsEdge(
                        new b2Vec2(node.getAttribute('x1'), node.getAttribute('y1')),
                        new b2Vec2(node.getAttribute('x2'), node.getAttribute('y2'))
                    );
                    body.CreateFixture(fixtureDef);
                    break;

                case 'polyline':
                    // Basically just iterate over the node's [points] attribute to make a bunch of 'line's
                    break;
            }
            traverse(node.children);
        }
    };
    traverse(svg.children);
    return body;
};


var svgParser = new b2SVGParser();
svgParser.parse(svg, world, bodyDef, fixtureDef);