def frame_checkups():
    """Perform various checkups.

    Meant to be used at the beginning of each frame in the
    app loop.
    """
    ### keep a constants framerate
    maintain_fps(FPS)

    ### increment frame number
    GENERAL_NS.frame_index += 1

    ### keep an eye on the window size
    watch_window_size()
Perform various checkups.

    Meant to be used at the beginning of each frame in the
    app loop.
    
nodezator/pygamesetup/services/normal.py