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So I am playing around with the Game Module and I have enjoyed swapping out coins for snowflakes and then slowed them down for a beautiful snowy day, but I want to do this with a ShapeNode and can't seem to figure it out..

class Coin (SpriteNode):
    def __init__(self, **kwargs):

        SpriteNode.__init__(self, 'emj:Snowflake', **kwargs)

If anyone can point me in the right direction to use a circle (ui.Path.oval) instead of a texture.
It tried this

class Ball(ShapeNode):
    def __init__(self, **kwargs):

        circle = ui.Path.oval (0, 0, 20, 20)

        theball = ShapeNode(circle,'red', stroke_color='clear', shadow=None)

        ShapeNode.__init__(self, theball, *kwargs)

And it tells me the ShapeNode object has no attribute bounds.
Thanks in advance to anyone who can help.

"init " method is not called properly. Here is some sample code that illustrates use of ShapeNode. Note that this works with python 3 and for working with python 2.7 you need to call super differently (super(Ball, self))

import scene, ui

class Coin(scene.SpriteNode):
    def __init__(self, **kwargs):        
        super().__init__('emj:Snowflake', **kwargs)

class Ball(scene.ShapeNode):
    def __init__(self, **kwargs):        
        circle = ui.Path.oval (0, 0, 20, 20)                
        super().__init__(circle, fill_color='red', stroke_color='clear', shadow=None, **kwargs)   

class Polygon(scene.ShapeNode):
    def __init__(self, **kwargs): 
        path = ui.Path()
        path.line_width = 5
        path.move_to(0, 0)
        path.line_to(200, 0)
        path.line_to(100, 100)
        path.close() 
        super().__init__(path, **kwargs)  

class MyScene(scene.Scene):
    def setup(self):
        self.ball = Ball(position=(200, 100), parent=self)
        self.coin = Coin(position=(200, 200), parent=self)
        self.triangle1 = Polygon(fill_color='skyblue', stroke_color='green',
                            position=(200, 400), parent=self)
        self.triangle2 = Polygon(fill_color='red', stroke_color='green',
                            position=(200, 300), parent=self)

scene.run(MyScene())

@abcabc thanks a lot. One of the amazing thing about these forums is that people (like you) help out with great examples and no snark. I am really grateful. And hopefully when I have greased my wheeels a bit more I will also be to help others out.

So thanks again for pointing out my mistake.
The polygon you included also really helps understand the syntax better!