pysimosx.py

#! /usr/bin/env python
"""
main.py this script handles the loading of the simulator. Under OSX TKinter and Pyglet will not work together so
they must be imported separately. This workaround is less than elegant as it slows the loading of the simulator
after the user has selected a world filea and robot but on ther otherhand allows the simulator to run on all platforms.
"""
from tkinter import Tk, Toplevel, DISABLED
import gc

try:
    selected_file = ""
    selected_robot = ""
    start_window = None
    """ gc.set_debug(gc.DEBUG_LEAK) """
    while selected_file == "" or (start_window is not None and start_window.selected_file is not "None"):  # if it is None then select simulator dialog did something other than "launch simulator", which then implies that window close operation was carried out and app should quit.
        # load tkinter + other deps for the start window
        from src.windows.startwindow import StartWindow
        try:
            print(start_window.window.geometry)  # Just a trick to check if start_window.window is anything but healthy - triggers an Exception if anything is amiss so we can create/or hold on to just one Tk() object which will serve the whole app lifecycle.
            # if no exception by here then start_window.window is still alive, and was just quitted
            # so simply restart the event loop
            #start_window.window.mainloop()
            start_window.refresh_world_filelist()
            selected_file, selected_robot = start_window.start()
            print(selected_file, selected_robot)
        except Exception:
            # start window probably doesn't exist, so make one
            # run the start window
            start_window = StartWindow()
            selected_file, selected_robot = start_window.start()
            print(selected_file, selected_robot)

        # load pyglet + other deps for the simulator
        import pyglet
        from src.windows.simulator import Simulator

        # run the simulator
        if selected_file is not "None" and selected_robot is not None:
            simulator = Simulator(selected_file, selected_robot, start_window)
            pyglet.clock.schedule_interval(simulator.update, 1.0 / 30)
            # pyglet.app.EventLoop.has_exit = False
            pyglet.app.run()
            # Clean up when simulator window closes
            # print("3")
            pyglet.clock.unschedule(simulator.update)
            # print("4")
            simulator.clear()
            simulator.close()
            # del(simulator)
            # pyglet.app.EventLoop.has_exit = True
            pyglet.app.exit()
            """ print(gc.garbage) """
except KeyboardInterrupt:
    print("Goodbye!")