timestep.Timestep

Class that handles the framerate-independent game loop.

• timestep.Timestep.update

  Run game logic

• timestep.Timestep.render

  Blit and draw all objects

• timestep.Timestep.run_game

  Run the game loop

Class that runs the game loop and does all the calculations to make the game framerate independent. step is the time (in seconds) between rendering update, for example 1/60.

class game_loop(timestep.Timestep):
    ...

game = game_loop(1/60)

update()

Run game logic

This method is intended to be overwriten with Character updates and the pygame event loop. Should not be called manually.

    ...
    def update(self):
        # standard pygame event loop
        for event in pygame.event.get():
            if event.type == QUIT:
                game_running = False
        # update Characters
        player.update()

render()

Blit and draw all objects

This method is intended to be overwriten with any code that draws to the screen. alpha should be passed in to all Character.draw(). Should not be called manually.

    ...
    def render(self, alpha): 
        screen.fill((0, 0, 0))

        player.draw(screen, alpha)

        pygame.display.flip()

run_game()

Run the game loop

Run within a while loop. Calls Timestep.update() and Timestep.render() periodically to make the game framerate independent.

game_running = True
while game_running:
    game.run_game()
pygame.quit()