[away3d] BSP users --> read this one

[Fabrice3D]

Some bug fixes we made in last few hours to 3.6

In case of BSPTree projects the MouseEvent3D has been restored.
It is made for meshes addChilded to the tree, NOT the tree itself. You are 
inside a closed space, so you always
hit the bounds. However if you add a mesh to the tree, you probably want to add 
some interaction as on any meshes
in a regular scene.

Here a quick example (code snippet from a Prefab output) of a cube added to the 
tree
If you would mouseDown the cube inside the tree, it would say "bam click click!"

I let you imagine better use of the MouseEvent3d in BSP :)

Fabrice
 
                        _tree = BSPTree(AWData.parse(new BSPFile()));
                        _view.scene.addChild(_tree);
                        _tree.usePVS = true;

                        _bspCollider = new BSPCollider(_view.camera, _tree);
                        _bspCollider.testMethod = BSPTree.TEST_METHOD_ELLIPSOID;
                        _bspCollider.flyMode = _flightMode;
                        _bspCollider.maxClimbHeight = 50;
                        _bspCollider.maxIterations = 4;

                        _bspCollider.minBounds = new Vector3D(-80,-200,-80);
                        _bspCollider.maxBounds = new Vector3D(80,40,80);
                        
                        var cube:Cube = new Cube({width:40, height:40, 
depth:40});
                        cube.x = 100;
                        cube.y = -1200;
                        cube.z = 100;
                        cube.addOnMouseDown(bla);
                        cube.collider = true;
                        _tree.addChild(cube);

                        addChild(_view);
                        addEventListener(Event.ENTER_FRAME, onEnterFrame);
                }
                
                private function bla(e:MouseEvent3D):void
                {
                        trace("bam click click!");
                }