Current Displayable position / Translation values of Layer

[Mirrowdothack]

Hello you guys. I hope you can help me out:

How do I get the exact, current pixel position of a Displayable on the screen?
Currently I do the following:

Code: Select all

displayable = renpy.scene_lists().get_displayable_by_tag("myLayer", "myDisplayable")
displayPosition = displayable.get_placement()[0:2]

But this approach isn't working correctly:
1) displayPosition won't be updated for every type of displayable (I don't realy understand this at the time. Some seem to work, other don't).
2) displayPosition won't be changed by any transforms, that are applied to the whole layer ("myLayer") of the displayable ("myDisplayable").

The goal is to get the translation & zoom values of a specific layer (For me a layer is like a local coordinate system).

Can you help me to get these pieces of information?