107 lines
3.0 KiB
Python
107 lines
3.0 KiB
Python
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from pyglet.window import Window
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from pyglet.clock import Clock
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from threading import Thread, Lock
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gl_lock = Lock()
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class ManagedWindow(Window):
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"""
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A pyglet window with an event loop which executes automatically
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in a separate thread. Behavior is added by creating a subclass
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which overrides setup, update, and/or draw.
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"""
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fps_limit = 30
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default_win_args = {"width": 600,
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"height": 500,
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"vsync": False,
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"resizable": True}
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def __init__(self, **win_args):
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"""
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It is best not to override this function in the child
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class, unless you need to take additional arguments.
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Do any OpenGL initialization calls in setup().
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"""
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# check if this is run from the doctester
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if win_args.get('runfromdoctester', False):
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return
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self.win_args = dict(self.default_win_args, **win_args)
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self.Thread = Thread(target=self.__event_loop__)
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self.Thread.start()
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def __event_loop__(self, **win_args):
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"""
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The event loop thread function. Do not override or call
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directly (it is called by __init__).
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"""
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gl_lock.acquire()
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try:
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try:
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super().__init__(**self.win_args)
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self.switch_to()
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self.setup()
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except Exception as e:
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print("Window initialization failed: %s" % (str(e)))
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self.has_exit = True
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finally:
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gl_lock.release()
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clock = Clock()
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clock.fps_limit = self.fps_limit
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while not self.has_exit:
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dt = clock.tick()
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gl_lock.acquire()
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try:
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try:
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self.switch_to()
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self.dispatch_events()
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self.clear()
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self.update(dt)
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self.draw()
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self.flip()
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except Exception as e:
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print("Uncaught exception in event loop: %s" % str(e))
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self.has_exit = True
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finally:
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gl_lock.release()
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super().close()
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def close(self):
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"""
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Closes the window.
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"""
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self.has_exit = True
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def setup(self):
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"""
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Called once before the event loop begins.
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Override this method in a child class. This
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is the best place to put things like OpenGL
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initialization calls.
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"""
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pass
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def update(self, dt):
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"""
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Called before draw during each iteration of
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the event loop. dt is the elapsed time in
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seconds since the last update. OpenGL rendering
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calls are best put in draw() rather than here.
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"""
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pass
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def draw(self):
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"""
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Called after update during each iteration of
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the event loop. Put OpenGL rendering calls
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here.
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"""
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pass
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if __name__ == '__main__':
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ManagedWindow()
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