import retro
(update)

class Scene:
    character A:'===='
    character B:'M'

    def __init__(self, position):
        self.position -= position

    def play_turn(self, game):
        if game.turn_number % 2 == 0:
            x, y = self.position
            if y == HEIGHT - 1:
                game.remove_agent_by_name(self.name)
            else:
                runner = game.get_agent_by_name('ship')
                new_position = (x, y + 1)
                if new_position == runner.position:
                    game.end()
                else:
                    self.position = new_position