Experimenting with Collada support for Physijs

gistfile1.js

// Physijs.MeshMixin, used to convert a THREE.Mesh into a Physijs.Mesh. Direct use of
// this mixin is not necessary if you're instantiating Physijs.Meshes directly.
// Returns the given THREE.Mesh with Physijs mesh behavior and metadata mixed in.
Physijs.MeshMixin = function(mesh, mass, params) {
  var index;

  params = params || {};
  Eventable.call(this);

  if (!mesh.geometry.boundingBox) {
    mesh.geometry.computeBoundingBox();
  }

  mesh._physijs = {
    type:null,
    id:getObjectId(),
    mass:mass || 0,
    touches:[],
    linearVelocity:new THREE.Vector3,
    angularVelocity:new THREE.Vector3
  };

  for (index in params) {
    if (!params.hasOwnProperty(index)) continue;
    this._physijs[index] = params[index];
  }
  return mesh;
};

// Physijs.Mesh
Physijs.Mesh = function(geometry, material, mass, params) {
  if (!geometry) return;
  THREE.Mesh.call(this, geometry, material);
  Physijs.MeshMixin(this, mass, params);
};



Physijs.Scene.prototype.addFromCollada = function(object) {
  // Not sure if it's correct to be using THREE.Scene.prototype.add instead of THREE.Mesh.prototype.add here.
  THREE.Scene.prototype.add.call(this, object);

  var material = new THREE.MeshBasicMaterial({color: 0xff0000});
  THREE.SceneUtils.traverseHierarchy(object, function(mesh) {
    Physijs.MeshMixin(mesh, material)
        
    object.__dirtyPosition = true;
    object.__dirtyRotation = true;
    this._objects[object._physijs.id] = object;

    object.world = this;

    this.execute( 'addObject', object._physijs );
  });
};