Question

我正在尝试在Pygame制作游戏，他的目标是开始游戏，但是只要你触摸它，开始按钮就会一直移动，但是窗口不会响应。我还没有完成代码，因为我测试了它并且它不起作用。到目前为止，这是我的代码：

import pygame
import random
import time
pygame.init()
display = pygame.display.set_mode((800,600))
pygame.display.set_caption('BEST 3D PLATFORMER FPS GAME!')
clock = pygame.time.Clock()
pygame.display.update()
clock.tick(60)
display.fill((255,255,255))
def newposition()
    randx = random.randrange(100, 700)
    randy = random.randrange(100,500)
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pass
        if event.ty
    button = pygame.image.load('start.png')
    display.blit(button,(randx,randy))

pygame.quit()
quit()

Answer 1

代码内的所有评论

import pygame
import random

# --- constants --- (UPPER_CASE names)

WHITE = (255, 255, 255) # space after every `,`

FPS = 30

# --- classes --- (CamelCase names)

#empty

# --- functions --- (lower_case names)

def new_position():
    x = random.randrange(100, 700) # space after every `,`
    y = random.randrange(100, 500) # space after every `,`
    return x, y # you have to return value

# --- main --- (lower_case names)

# - init -

pygame.init()

display = pygame.display.set_mode((800, 600)) # space after every `,`

pygame.display.set_caption('BEST 3D PLATFORMER FPS GAME!')

# - objects -

# load only once - don't waste time to load million times in loop
button = pygame.image.load('start.png').convert_alpha()
button_rect = button.get_rect() # button size and position
button_rect.topleft = new_position() # set start position

# - mainloop -

clock = pygame.time.Clock()

running = True

while running:

    # - events -

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            #pass # it does nothing so you can't exit
            running = False # to exit `while running:`

        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                running = False # to exit `while running:`

        elif event.type == pygame.MOUSEBUTTONDOWN:
            if event.button == 1: # left button
                 button_rect.topleft = new_position() # set new position

        # if event.ty # Syntax Error

    # - updates (without draws) -

    #empty

    # - draws (without updates) -

    # you have to use it inside loop
    display.fill(WHITE) # clear screeen before you draw elements in new place

    display.blit(button, button_rect)

    # you have to use it inside loop
    pygame.display.update() # you have to send buffer to monitor

    # - FPS -

    # you have to use it inside loop
    clock.tick(FPS) 

# - end -

pygame.quit()

BTW：simple template，您可以在开始新项目时使用它。

PEP 8 -- Style Guide for Python Code

Answer 2

我有类似的问题，修复并不是直截了当的。以下是我对python 3.6.1和Pygame 1.9.3的说明：

1）事件没有响应，因为没有为pygame生成显示，在pygame初始化后添加一个窗口显示：

pygame.init()  # Initializes pygame
pygame.display.set_mode((500, 500)) # <- add this line. It generates a window of 500 width and 500 height

2）pygame.event.get()是生成事件列表但不是所有事件类都有.key方法，例如鼠标运动。因此，更改所有.key事件处理代码，例如

if event.key == pygame.K_q:
    stop = True

要

if event.type == pygame.KEYDOWN:
    if event.key == pygame.K_q:
        stop = True

3）在一些mac / python组合中，即使在生成窗口之后它也不会聚焦/记录键盘事件，这是一个pygame问题，并且在使用sdl2重新实现pygame时修复（SDL是一个交叉平台开发库，提供对键盘，音频，鼠标等的低级访问。可以按照https://github.com/renpy/pygame_sdl2中的说明进行安装。有人可能需要为它安装自制软件，这是macOS的另一个软件包管理器。可以在https://brew.sh/

找到相关说明

4）使用github链接上的说明安装后，你需要更改所有导入pygame以导入pygame_sdl2为pygame

5）瞧！固定......

Answer 3

您必须在循环外加载button（只需要执行一次。）

button = pygame.image.load('start.png')

此外，您有已定义 newposition()，但尚未调用它。此外，无法从函数的外部访问randx和randy，因为它将是本地的。

所以，将你的功能改为：

def newposition()
    randx = random.randrange(100, 700)
    randy = random.randrange(100,500)
    return randx, randy # Output the generated values

然后，在循环之前：

rand_coords = newposition()

您只是忘了更新 pygame显示并修改它。

在循环结束时，添加pygame.display.update()，如下所示：

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pass
        # if event.ty why is that here?

    display.blit(button,(rand_coords[0],rand_coords[1])) # Take our generated values
    pygame.display.update()

最终代码：

import pygame
import random
import time

pygame.init()
display = pygame.display.set_mode((800,600))
pygame.display.set_caption('BEST 3D PLATFORMER FPS GAME!') # Yeah, exactly :)

clock = pygame.time.Clock()

display.fill((255,255,255))

def newposition()
    randx = random.randrange(100, 700)
    randy = random.randrange(100,500)
    return randx, randy # Output the generated values

rand_coords = newposition() # Get rand coords

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit() # Quit pygame if window in closed
        # if event.ty why is that here?

    clock.tick(60) # This needs to be in the loop 

    display.fill((255,255,255)) # You need to refill the screen with white every frame.
    display.blit(button,(rand_coords[0],rand_coords[1])) # Take our generated values
    pygame.display.update()

Pygame窗口没有响应

3 个答案: