Unable to rotate polygon

[italomaia]

Just made a polygon using shapes.newPolygonShape, extended it using 30log + CC, instantiated it and then tried to rotate it but the polygon doesn't rotate.

Example:

pol = shapes.newPolygonShape(
     0, 10,
    10,  0,
    48,  0, 
    58, 10, 
    58, 30, 
    48, 40,
    10, 40,
     0, 30
  )

car = common.class('car', {}, pol)
myCar = common.instance(car)
myCar:rotate(math.pi/4) -- does not do a thing

[italomaia]

Ok, just pinned the problem. I can't rotate my polygon if I require 30logclasscommons before requiring "hardoncollider.shapes". This probably has something to do with the use of 30log CC implementation. No ideia if this is a problem related to 30log or HC.

[italomaia]

More on this issue: I tried testing another OO library with hardon, slither. The result? No result, actually. I get an error. So, I went back to trace down the reason for 30log and HC "no rotate" behavior. Placing a print inside polygon:rotate and shape:rotate, I discovered that when using 30log, polygon:rotate is never called. If 30log is not present, shape and polygon rotate methods are called. Here is my test code:

http://dpaste.com/hold/1526867/

[italomaia]

Fixed on 30log side.

[vrld]

Just for completeness, and to clarify some things about class commons:

• Class commons is meant as a tool for library writers to enable users to extend the classes provided in the library.
• If you don't provide a CC enabled library, HardonCollider will simply use the one shipped with it (hump.class)
• common.class(name, table, parents...) expects parents... to be classes, but pol is an instance of either shapes.ConvexPolygonShape or shapes.ConcavePolygonShape.

• As an end-user, you should not use the common.* interface, but the interface the class system provides. In the case of 30log this should work:

  car = pol:extends{}
  myCar = car:new()