Latest libgdx's json loader changed behavior for Long/Floats

[GoogleCodeExporter]

Using the latest libgdx, the BodyEditorLoader will throw an exception as soon 
as it try to cast a Long to a Float since the current behavior changed.

The fix is quite easy: just perform an "instanceof" check before casting and 
choose the right type before performing the type conversion.

As an example, here is what i'm doing:

    rbModel.origin.x = (originElem.get("x") instanceof Float) ? (Float)originElem.get("x") : (Long)originElem.get("x");
    rbModel.origin.y = (originElem.get("y") instanceof Float) ? (Float)originElem.get("y") : (Long)originElem.get("y");

This has to be done for polygons and circles as well.

Original issue reported on code.google.com by manuel....@gmail.com on 21 Apr 2013 at 2:12