how to create a 2d / 3d game in cocos2d

gistfile1.py

### Option 1
### director has a mode
def appdelegate:
  # Projection / Camera is part of director
  # Scene checks this value in order to create the correct Physics world
  director.setMode(2D)
  director.runScene( MyScene() )

class MyScene( Scene ):
  def init(self):
    do_something()
    
    
### Option 2
### director doesn't have a mode
### 2D/3D is controlled by Scene
def appdelegate:
  director.runScene( MyScene() )

# subclasses Scene2D
# scene2d sets a 2D projection/camera
# scene2d uses a 2d PhysicsWorld
class MyScene( Scene2D ):
  def init(self):
    do_something()
    
    
### Option 3
# something else