def step(self, dt):
        self.screen.fill((0,0,0))
        self._handle_player_events()
        
        self.score += self.rewards["tick"]

        if self.fruit.rect.center[1] == self.height:
            self.score += self.rewards["negative"]
            self.lives -= 1
            self.fruit.reset()

        if pygame.sprite.collide_rect(self.player, self.fruit):
            self.score += self.rewards["positive"]
            self.fruit.reset()

        self.player.update(self.dx, dt)
        self.fruit.update(dt)
        
        if self.lives == 0:
            self.score += self.rewards["loss"] 

        self.player.draw(self.screen)
        self.fruit.draw(self.screen)
dataset/ETHPy150Open ntasfi/PyGame-Learning-Environment/ple/games/catcher.py/Catcher.step/operator `>=` -> `==`