[英]Pygame is not responding when code is run
出于某种原因,当我尝试运行贪吃蛇游戏时,它总是说没有响应。 它以前曾经工作过,但现在似乎已经停止了。 它在 replit 中似乎也不起作用。 我是 pygame 的新手,所以我以前从未遇到过这个问题。 我试过重新运行它并进行小的编辑,但到目前为止没有任何效果。 为什么会这样,我该如何解决?
这是代码:
import random
# initialize pygame
pygame.init()
# defining colour variables using rgb
white = (255, 255, 255)
pink = (255, 158, 208)
black = (0, 0, 0)
red = (213, 50, 80)
yellow = (237, 255, 41)
blue = (50, 153, 213)
# screen width and height
WIN_WIDTH = 600
WIN_HEIGHT = 400
# set the window, valid arguments are width and height
WIN = pygame.display.set_mode((WIN_WIDTH, WIN_HEIGHT))
pygame.display.set_caption('snake game')
clock = pygame.time.Clock()
# size the snake (rectangle)
snake_block = 10
# set the snakes velocity (speed)
VEL = 15
# define fonts, valid arguments are the font name and size
font_style = pygame.font.SysFont('bahnschrift', 25)
score_font = pygame.font.SysFont('impact', 30)
# score function
def score(score):
text = score_font.render(' Score: ' + str(score), True, pink) # create the score
WIN.blit(text, [0, 0]) # using blit to add the text to the screen
# snake function, passing in snake block and snake list (see game loop)
def snake(snake_block, snake_list):
for x in snake_list:
pygame.draw.rect(WIN, black, [x[0], x[1], snake_block, snake_block]) # creating the snake rectangle
def message(msg, colour):
msg = font_style.render(msg, True, colour) # renders a font
WIN.blit(msg, [WIN_WIDTH / 6, WIN_HEIGHT / 3]) # blits the msg coordinates
# main gameloop function
def gameLoop():
# boolean variables
game_over = False
game_close = False
# x and y variables for where the snake will be placed
x1 = WIN_WIDTH / 2
y1 = WIN_HEIGHT / 2
# create x and y change variables to update the coordinates
x1_change = 0
y1_change = 0
# creating an empty list for the snakes length
snake_List = []
Length_of_snake = 1
# add a randomly placed rectangle that will act as the food (x, y)
foodx = round(random.randrange(0, WIN_WIDTH - snake_block) / 10.0) * 10.0
foody = round(random.randrange(0, WIN_HEIGHT - snake_block) / 10.0) * 10.0
# while the game isn't over
while not game_over:
# while game close is true
while game_close:
# turn the screen blue
WIN.fill(blue)
# add losing text
message('You Lost! Press C to Play Again or Q to Quit', red)
# sets the score for when you lost
score(Length_of_snake - 1)
pygame.display.update()
# pygame events
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit() # making it so when the user clicks the x the game closes
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_q: # same thing as the x in the corner, but you can press q
game_over = True
game_close = False
if event.key == pygame.K_c: # replay the game
gameLoop() # calls the main function (restarts)
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_over = True
if event.type == pygame.KEYDOWN: # keydown is another event, for using the keyboard to do stuff
if event.key == pygame.K_a: # if the a key is pressed, x1_change = -snake_block, which is equal to 10. this moves the rectangle to the left
x1_change = -snake_block
y1_change = 0
if event.key == pygame.K_d: # if the d key is pressed, x1_change = snake_block, which is equal to 10. this moves the rectangle to the right
x1_change = snake_block
y1_change = 0
if event.key == pygame.K_w: # if the w key is pressed, y1_change = -snake_block, which is equal to 10. this moves the rectangle up
y1_change = -snake_block
x1_change = 0
if event.key == pygame.K_s: # if the s key is pressed, y1_change = snake_block, which is equal to 10. this moves the rectangle down
y1_change = snake_block
x1_change = 0
if x1 >= WIN_WIDTH or x1 < 0 or y1 >= WIN_HEIGHT or y1 < 0: # if the x or y positions of the snake go over the screen width or height
game_close = True # you lose
x1 += x1_change
y1 += y1_change
WIN.fill(blue)
pygame.draw.rect(WIN, yellow, [foodx, foody, snake_block, snake_block])
snake_Head = [] # create a snake head empty list
snake_Head.append(
x1) # append lets us add something to a list, in this case x1 and y1 are added to the snake_head list
snake_Head.append(y1)
snake_List.append(snake_Head) # add snake head to snake list
if len(snake_List) > Length_of_snake: # len returns the length of something, in this case snake list, so if snake list is greater than the snakes length
del snake_List[0] # del means delete, so delete the first value in snake list, index 0
for i in snake_List[:-1]:
if i == snake_Head: # if the snake head hits itself
game_close = True # you lose
snake(snake_block, snake_List)
score(Length_of_snake - 0)
pygame.display.update() # update the screen
if x1 == foodx and y1 == foody: # if you hit the food
foodx = round(
random.randrange(0, WIN_WIDTH - snake_block) / 10.0) * 10.0 # generate a new random food position
foody = round(random.randrange(0, WIN_HEIGHT - snake_block) / 10.0) * 10.0
Length_of_snake += 1 # add 1 to the snakes length
clock.tick(VEL) # valid arguments are a number (frames per second)
# oposite of pygame.init, quit
pygame.quit()
# quit the program
quit()
# call the gameloop function
gameLoop()
请参阅“pygame.event.get()”的更快版本。 为什么会错过事件以及为什么会延迟事件? . pygame.event.get()
获取所有消息并将它们从队列中移除。 请参阅文档:
这将获取所有消息并将它们从队列中删除。 [...]
如果在多个事件循环中调用pygame.event.get()
,只有一个循环接收事件,但不会所有循环都接收所有事件。 结果,一些事件似乎被遗漏了。 只实现 1 个事件循环。
不要递归调用gameLoop
,而是循环运行游戏。 递归调用主 function 会弄乱你的变量,实际上会导致游戏在游戏中运行。
例如:
def gameLoop():
# run the game in a loop multiple times
game_close = False
while not game_close:
# init game states
x1 = WIN_WIDTH / 2
y1 = WIN_HEIGHT / 2
# [...]
# application loop
game_over = False
while not game_over:
# [...]
# pygame events
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_over = True
game_close = True
if event.type == pygame.KEYDOWN: # keydown is another event, for using the keyboard to do stuff
if event.key == pygame.K_q: # same thing as the x in the corner, but you can press q
game_over = True
game_close = True
if event.key == pygame.K_c: # replay the game
game_over = True
if event.key == pygame.K_a: # if the a key is pressed, x1_change = -snake_block, which is equal to 10. this moves the rectangle to the left
x1_change = -snake_block
y1_change = 0
# [...]
根据我的经验,在 while 循环中使用 while 循环确实会导致崩溃和死机。 尽量避免这种情况,应该没问题。
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