如何让“得分”显示在游戏窗口中？

Question

到目前为止，在我的蛇游戏中，分数是在python shell中打印的。怎样才能在游戏窗口中打印出来呢？这样游戏和分数就会出现在同一个窗口中？谢谢埃里克

while running:


    screen.fill((0, 0, 0))
    worm.move()
    worm.draw()
    food.draw()

    if worm.crashed:
        exit();
    elif worm.x <= 0 or worm.x >= w -1:
        running = False
    elif worm.y <= 0 or worm.y >= h-1:
        running = False
    elif worm.position() == food.position():
        score += 1
        worm.eat()
        print " score: %d" % score
        food = Food(screen)
    elif food.check(worm.x, worm.y):
        score += 1
        worm.eat()
        print "score: %d" % score
        food = Food(screen)
    elif running == False:
        exit();

    for event in pygame.event.get():
        if event.type == pygame.quit:
            running = False
        elif event.type == pygame.KEYDOWN:
            worm.event(event)

    pygame.display.flip()
    clock.tick(100)

编辑-

while running:


screen.fill((0, 0, 0))
worm.move()
worm.draw()
food.draw()
pygame.font.init()
pygame.font.get_fonts() 

if worm.crashed:
    exit();
elif worm.x <= 0 or worm.x >= w -1:
    running = False
elif worm.y <= 0 or worm.y >= h-1:
    running = False

elif food.check(worm.x, worm.y):
    score += 1
    worm.eat()
    food = Food(screen)
    message = 'score: %d' % score
    font = pygame.font.Font(None, 40)
    text = font.render(message, 1, white)
    screen.blit(text, (50, 50))

elif running == False:
    exit();

for event in pygame.event.get():
    if event.type == pygame.quit:
        running = False
    elif event.type == pygame.KEYDOWN:
        worm.event(event)

为什么分数不是很接近，我没有得到任何错误？

Answer 1

使用font模块在屏幕上呈现字体。

从用户指南中：

white = (255, 255, 255)

message = 'your message'
font = pygame.font.Font(None, 40)
text = font.render(message, 1, white)
screen.blit(text, (x_position,y_position))

Answer 2

响应您的编辑:只有当您选择特定的elif分支时(即，仅当蠕虫获取食物时)，您才会将文本显示在屏幕上。在下一帧中，你清除了屏幕，但食物不在那里，所以比分不会被抽出。取而代之的是，你应该在每一帧都将分数显示在屏幕上。