Question

Whenever I was trying to make a snake game , this is still incomplete, whenever my snake collides with boundary it goes to the next screen a prints

you suck try again

but if I double click anywhere on the pygame window it crashes sometimes.

Tthe number of left clicks are more than just 2 but in the end it still crashes after clicking a while.

What must I do to fix this as this issue is not there for the initial screen where I play with the snake.

The code I used is given below:

import pygame
import random
pygame.init()
font = pygame.font.Font(None,25)
def mess(msg,color):
    screen_text = font.render(msg, True , color)
    display.blit(screen_text , [(w/2) - 50 , h/2] )
score = 0
w = 800
h = 600
display = pygame.display.set_mode((w,h))
pygame.display.update()
red = (255,0,0)
white = (255,255,255)
black = (0,0,0)
yellow = (255,255,0)
bye = False
xpos = w/2
ypos = h/2
xch  = 0
ych  = 0
b    = 10
while True:
    wa = random.randrange (10,700)
    ha = random.randrange (10,500)
    if wa%10 == 0 and ha%10 == 0:
        break

time = pygame.time.Clock()
FPS = 10
up = False
side = False
lenth = 10
while not bye:

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_w and up == False:
                 ych = -b
                 xch = 0
                 up = True
                 side = False
            if event.key == pygame.K_s and up == False:
                 ych = +b
                 xch = 0
                 up = True
                 side = False

            if event.key ==pygame.K_d and side == False:
                 xch = +b
                 ych = 0
                 side = True
                 up = False

            if event.key == pygame.K_a and side == False:
                 xch = -b
                 ych = 0
                 side = True
                 up = False
    if xpos == wa  and ypos == ha:
        lenth = lenth + 10
        while True:
            wa = random.randrange (10,700)
            ha = random.randrange (10,500)
            if wa%10 ==0 and ha%10 == 0:
                break

        score = score + 10
    if xpos == w - 10  or xpos == 0 or ypos == h - 10 or ypos == 0:
        xch = 0
        ych = 0
        display.fill(black)
        mess("You suck Try again!",red)
        pygame.display.update()
        break

    xpos = xpos + xch
    ypos = ypos + ych
    time.tick(FPS)

   display.fill(white)
   display.fill(red , rect=[xpos,ypos,10,10])#snake
   display.fill(yellow ,rect=[xpos + 0.41 , ypos +10 ,10 , lenth])#bady
   display.fill(black, rect=[wa,ha,10,10])  #food
   pygame.display.update()

Answer 1

我不知道这是否能完全解决您的问题。但是像这样的while循环没有睡眠会导致你的程序占用你所有的CPU能力，这可能会导致你的程序崩溃。解决此问题的方法是更改此代码...

while True:
    wa = random.randrange (10,700)
    ha = random.randrange (10,500)
    if wa%10 ==0 and ha%10 == 0:
        break

对此...

wa = random.randrange(1,70)*10
ha = random.randrange(1,50)*10

这会将while循环全部移除，并且在10到700之间，以及10和500之间仍然可以将数字除以10。

Answer 2

当你的蛇离开屏幕时，会执行以下if语句：

if xpos == w - 10  or xpos == 0 or ypos == h - 10 or ypos == 0:
    xch = 0
    ych = 0
    display.fill(black)
    mess("You suck Try again!",red)
    pygame.display.update()
    break

因此，在向显示屏绘制一些文字并致电pygame.display.update()后，您拨打break，结束while循环。

所以你的游戏不会崩溃，它只会结束。

pygame crashes when double clicking on screen

2 个答案: