Python 使图像随机出现并在一定时间后消失

我非常困惑如何处理这个问题，我无法让它发挥作用。所以，如果你之前玩过蛇，你会记得在某些时候会出现一个图像，如果你吃了蛇，你会得到更多的分数，但如果你错过了它，它会消失（也就是说，在你抓住它之前不会永远停留在那里）

我已经编写了与时间相关的代码（允许您激活一个盾牌），如下所示：

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如何在pygame中实现消失的图像？ 我知道这是非常规的，但如果你能帮忙，我将不胜感激，因为我在过去的一个小时里一直无法做到这一点

最好的，

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Seyed

使用时间为

开始显示

和

结束显示

的变量

在游戏中控制不同的元素是很流行的方法

import pygame
import random

# - init -

pygame.init()

screen = pygame.display.set_mode((800, 600))

# - objects -

display_apple = False
start_showing = None
end_showing = None

current_time = pygame.time.get_ticks()

# show first time 
start_showing = current_time + random.randint(1,5)*1000

# - mainloop -

clock = pygame.time.Clock()

running = True

while running:

    # - events -

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                running = False

    # - updates -

    current_time = pygame.time.get_ticks()

    if display_apple:
        # is it time to hide ?
        if end_showing and current_time >= end_showing:
            # hide it
            display_apple = False
            end_showinge = False
            # set time when to show
            start_showing = current_time + random.randint(1,5)*1000
    else:
        # is it time to show ?
        if start_showing and current_time >= start_showing:
            # show it
            display_apple = True
            start_showing = False
            # set time when to hide
            end_showing = current_time + random.randint(1,5)*1000

    # - draws -

    screen.fill((0,0,0))

    if display_apple:
        pygame.draw.rect(screen, (255,0,0), (0,0,100,100))

    pygame.display.flip()

    # - FPS -

    clock.tick(30)

# - end -

pygame.quit()

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使用主循环中的

hide_time=curr_time+random_time

并选中

hide_time

以显示或不显示图像。但我有一个小问题，您的代码在固定位置的随机时间生成粒子，我想要固定时间的随机位置。我该怎么做？阅读部分代码

#-更新-

-使用固定时间而不是随机时间，并添加随机位置。

import pygame
import random

# - init -

pygame.init()

screen = pygame.display.set_mode((800, 600))

# - objects -

display_apple = False
start_showing = None
end_showing = None

current_time = pygame.time.get_ticks()

# show first time 
start_showing = current_time + random.randint(1,5)*1000

# - mainloop -

clock = pygame.time.Clock()

running = True

while running:

    # - events -

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                running = False

    # - updates -

    current_time = pygame.time.get_ticks()

    if display_apple:
        # is it time to hide ?
        if end_showing and current_time >= end_showing:
            # hide it
            display_apple = False
            end_showinge = False
            # set time when to show
            start_showing = current_time + random.randint(1,5)*1000
    else:
        # is it time to show ?
        if start_showing and current_time >= start_showing:
            # show it
            display_apple = True
            start_showing = False
            # set time when to hide
            end_showing = current_time + random.randint(1,5)*1000

    # - draws -

    screen.fill((0,0,0))

    if display_apple:
        pygame.draw.rect(screen, (255,0,0), (0,0,100,100))

    pygame.display.flip()

    # - FPS -

    clock.tick(30)

# - end -

pygame.quit()