 import com.threerings.media.util.AStarPathSearch_Stepper;
 import com.threerings.media.util.LineSegmentPath;
 import com.threerings.media.util.Path;
+import com.threerings.media.util.Pathable;
 import com.threerings.media.util.TraversalPred;
 import com.threerings.miso.client.MisoMetricsTransformation;
 import com.threerings.miso.client.PrioritizedSceneLayoutRenderer;


    protected var _covered :Set = Sets.newSetOf(String);

    protected const DEF_WIDTH :int = 985;
    protected const DEF_HEIGHT :int = 560;



        _isoView = new IsoView();
        _isoView.setSize(DEF_WIDTH, DEF_HEIGHT);

        _centerer = new Centerer(_isoView);

        _vbounds = new Rectangle(0, 0,
            _isoView.size.x, _isoView.size.y);

