如何在pygame中停止计时器

Question

对于我的结束屏幕，我想要一条写着“你幸存了 X 秒”的行，但在该行中，计时器在游戏结束后继续运行。我尝试在主循环中将计时器代码向下移动（在该if gameover:部分之后）。我也尝试过if not gameover and time_difference >= 1500:，但计时器仍然运行。这是我的带有计时器的程序循环：Code is removed for now. Will re-upload in 1 to 2 months.和结束屏幕代码（如有必要）：def gameOverScreen():    ending = 1    global run, gameover    for event in pygame.event.get():        if event.type == pygame.QUIT:            run = False

Answer 1

对于那些需要它的人，在一些帮助下，代码现在可以工作了。

#Start screen Loop

done = False

start_time = pygame.time.get_ticks()

while not done and display_instructions:

    if not pygame.mixer.music.get_busy():

        pygame.mixer.music.load('bgm.mp3')

        pygame.mixer.music.play()

    for event in pygame.event.get():

        if event.type == pygame.QUIT:

            done = True

        if event.type == pygame.MOUSEBUTTONDOWN:

            instruction_page += 1

            if instruction_page == 2:

                display_instructions = False

    # Set the screen background

    win.fill(black)

    if instruction_page == 1:

        text = font.render("Instructions:", True, white)

        win.blit(text, [10, 20])

        text = font.render("1. Use WASD, or the Arrow Keys to move", True, white)

        win.blit(text, [10, 100])

        text = font.render("2. Left click to shoot", True, white)

        win.blit(text, [10, 150])

        text = font.render("3. Collect ammunition", True, white)

        win.blit(text, [10, 200])

        text = font.render("4. STAY ALIVE", True, white)

        win.blit(text, [10, 250])

        text = font.render("Kill or be killed", True, red)

        win.blit(text, [260, 420])

        text = font.render("How long can you survive?", True, red)

        win.blit(text, [150, 470])

        text = font.render("Click to start", True, white)

        win.blit(text, [270, 600])

    clock.tick(60)

    pygame.display.flip()

def gameOverScreen(end_time):

    seconds_survived = (end_time - start_time) // 1000

    ending = 1

    global run, gameover

    for event in pygame.event.get():

        if event.type == pygame.QUIT:

            run = False

    win.fill(black)

    timer = pygame.time.get_ticks() - now2

    if ending == 1:

        win.blit(endscreen.image, endscreen.rect)

        time = font.render(str(seconds_survived/1000) ,1,red)

        win.blit(time, (410, 600))

        endtext = font.render("You survived for               seconds", True, red)

        win.blit(endtext, [100, 600])

        kill = font.render("Kill count: " +str(killcounter), 1, red)

        win.blit(kill, (280, 650))

    pygame.display.flip()

    clock.tick(100)

# Programme loop

run = True

gameover = False

while run:

    actual_ticks = pygame.time.get_ticks()

    if gameover:

        now2 = now = actual_ticks 

        gameOverScreen(end_time)

        continue

    timer = actual_ticks - now2

    time_difference = actual_ticks - now

    if time_difference >= 1500:

        newenemy = Enemy(random.randrange(50,780), random.randrange(50,780), 1 ,wall_list)

        enemy_list.add(newenemy)

        all_sprite_list.add(newenemy)

        newenemy2 = Enemy(random.randrange(50,780), random.randrange(50,780), 1 ,wall_list)

        enemy_list.add(newenemy2)

        all_sprite_list.add(newenemy2)

        now = actual_ticks

        all_sprite_list.update()

    win.fill(white)

    win.blit(background.image, background.rect)

    for e in enemy_list:

        e.move(player)

    collide = pygame.sprite.spritecollide(player, enemy_list, False)

    if collide:

        gameover = True

        end_time = pygame.time.get_ticks()

    food_collide = pygame.sprite.spritecollide(player,food_list,False)

    for food in food_collide:

        score += 1

        bullets += 10

        food_list.remove(food)

        newfood = Food()

        food_list.add(newfood)

        all_sprite_list.add(newfood)

        all_sprite_list.remove(food)

        food_list.update()

        all_sprite_list.update()

        pygame.mixer.music.load('reload.mp3')

        pygame.mixer.music.play()

    for event in pygame.event.get():

        if event.type == pygame.QUIT: 

            run = False

        elif event.type == pygame.KEYDOWN:

            if event.key == pygame.K_LEFT or event.key == ord('a'):

                player.move(-2, 0)

            elif event.key == pygame.K_RIGHT or event.key == ord('d'):

                player.move(2, 0)

            elif event.key == pygame.K_UP or event.key == ord('w'):

                player.move(0, -2)

            elif event.key == pygame.K_DOWN or event.key == ord('s'):

                player.move(0, 2)

        elif event.type == pygame.KEYUP:

            if event.key == pygame.K_LEFT or event.key == ord('a'):

                player.move(2, 0)

            elif event.key == pygame.K_RIGHT or event.key == ord('d'):

                player.move(-2, 0)

            elif event.key == pygame.K_UP or event.key == ord('w'):

                player.move(0, 2)

            elif event.key == pygame.K_DOWN or event.key == ord('s'):

                player.move(0, -2)

        elif event.type == pygame.MOUSEBUTTONDOWN:

            aim_pos = event.pos

            player_position = player.rect.center

            bullet_vec = pygame.math.Vector2(aim_pos[0] - player_position[0], aim_pos[1] - player_position[1]).normalize() * 10

            bullet = Bullet()

            bullet.rect.center = player.rect.center

            bullet.vec = bullet_vec

            if bullets > 0:

                all_sprite_list.add(bullet)

                bullets -= 1

                pygame.mixer.music.load('Gunshot.mp3')

                pygame.mixer.music.play()

            else:

                pygame.mixer.music.load('reload.mp3')

                pygame.mixer.music.play()

    hit = pygame.sprite.spritecollide(bullet, enemy_list, False)

    for enemy in hit:

        killcounter += 1

        enemy_list.remove(enemy)

        all_sprite_list.remove(enemy)

        enemy_list.update()

        all_sprite_list.update()

    enemy.move(player)

    all_sprite_list.update()

    all_sprite_list.draw(win)

    time = font.render(str(timer/1000) ,1,black)

    win.blit(time, (680, 5))

    scoretext = font.render("Bullets: " +str(bullets), 1, black)

    win.blit(scoretext, (5, 5))

    kill = font.render("Kill count: " +str(killcounter), 1, black)

    win.blit(kill, (250, 5))

    pygame.display.flip()

    clock.tick(100)

pygame.quit()

我必须做的是：

为新计时器添加开始

#Start screen Loop

done = False

start_time = pygame.time.get_ticks()

当您确定游戏结束时，获取此处所用的时间

def gameOverScreen():

    seconds_survived = (pygame.time.get_ticks() - start_time) // 1000

    ending = 1

您需要做的是找到发生碰撞时的时间（当碰撞为真时）并将其作为参数传递给 gameOverScreen()。

if collide:

    gameover = True

    end_time = pygame.time.get_ticks()

并且 gameOverScreen 应该接收参数 end_time 并使用它来显示秒

def gameOverScreen(end_time):

    seconds_survived = (end_time - start_time) // 1000

请记住，这只有效，因为“如果碰撞”只有一次为真，如果重复为真，则 end_time 将在循环中不断更新，您将再次看到相同的秒数增加情况。

希望这对某人有所帮助！