Python pygame崩溃，修复似乎不起作用

Question

I'm trying to make a platformer, and in the code below I'm trying to move one image ('bird.png') around on the background. However, every time I try to launch pygame it crashes without even loading any of the images. I checked out the other pages and it still didn't fix the problem. There are probably a few mistakes in the code, but I can't check if it's working properly because as I said, pygame keeps crashing. Is there anything I can do to fix it?

PS. Sorry if it's a bit messy, and for the french words in the code :)

import pygame 
from pygame import *

pygame.init()

TE=[] 

def perso(X):
    X = [0,448]
    while X != [640,0]:
         w=int(input("Déplacement: "))
#Right#
         if w==0:
              if X[1] == 608:
                   print("You can't leave the map")
              else:    
                   X[1] +=  32
                   print(X)     
#Left#
         elif w==1:
              if X[1] == 0:
                   print("You can't leave the map")
              else:
                   X[1] -= 32
                   print(X)     
#Down#  
         elif w==2:
              if X[0] == 456:
                   print("You can't leave the map")
              else:
                   X[0] += 24
                   print(X)     
#Up#
         elif w==3:
              if X[0] == 0:
                   print("You can't leave the map")
              else:
                   X[0] -= 24
                   print(X)
         else:
              print("non valable")
    print("Bravo!")

screen = pygame.display.set_mode((680, 488)) background_image = pygame.image.load("C:/Python34/Scripts/Images & Sounds/background(680x480).jpg").convert()
screen.blit(background_image,[0,0])

character = pygame.image.load("C:/Python34/Scripts/Images & Sounds/bird(40x40).png").convert()
screen.blit(character, (X[0],X[1]))

perso(TE)


flag

I run the code and when the pygame window opens, it's black and after a few seconds I get the 'not responding' message (for the pygame window). However, the w=int(input("Déplacement: ")) part seems to work as it asks for an input. Maybe it's something to do with the images?

Answer 1

One of the simplest game loops consists of an "update" sequence and a "render" sequence that are called each time through the loop. Both of these sequences should take very little time to complete (the faster the better). It could be that Python's built in input function is stopping the "update" sequence and causing the game to crash because it can't continue the loop.

The easiest way to solve this would be to just use Pygame's built-in key input methods. It's also a good idea to break out the "render" and "update" sequences to help distinguish between the game logic and the rendering of images.

import pygame 
from pygame import *

pygame.init()

screen = pygame.display.set_mode((680, 488)) 
background_image = pygame.image.load("C:/Python34/Scripts/Images & Sounds/background(680x480).jpg").convert()
character = pygame.image.load("C:/Python34/Scripts/Images & Sounds/bird(40x40).png").convert()

def move(X):
    keys = pygame.get_pressed()
    #Right#
    if keys[pygame.K_RIGHT] != 0:
        if X[1] == 608:
             print("You can't leave the map")
        else:    
             X[1] +=  32
             print(X)     
    #Left#
    elif keys[pygame.K_LEFT] != 0:
        if X[1] == 0:
             print("You can't leave the map")
        else:
             X[1] -= 32
             print(X)     
    #Down#  
    elif keys[pygame.K_DOWN] != 0:
        if X[0] == 456:
             print("You can't leave the map")
        else:
             X[0] += 24
             print(X)     
    #Up#
    elif keys[pygame.K_UP] != 0:
        if X[0] == 0:
             print("You can't leave the map")
        else:
             X[0] -= 24
             print(X)
    else:
        print("non valable")

    return X


def draw(X):
    screen.blit(background_image,[0,0])
    screen.blit(character, (X[0],X[1]))

Running = True
X = [0,448]
while Running:

    # Updated and draw
    X = move(X)
    draw(X)

    # Allow for the user to exit the game
    for i in pygame.event.get():
        if i.type==QUIT:
            Running = False
            exit()

    # End the game if
    if X == [640, 0]:
        Running = False
        exit()