def update(self):
global running
for event in self.window.iter_events():
if event.type == sf.Event.CLOSED:
running = False
if event.type == sf.Event.TEXT_ENTERED or \
event.type == sf.Event.KEY_PRESSED or \
event.type == sf.Event.KEY_RELEASED:
Manager.handle_input(event)
#get the amount of time passed since the last update
delta = self.clock.elapsed_time.as_seconds()
self.clock.restart()
#process the manager
Manager.update(delta)
#clear the buffer
self.window.clear(sf.Color.WHITE)
Manager.render(self.window, delta)
#flush to the display
self.window.display()
