Question

在播放器rect与窗口宽度发生冲突之后，我现在收到错误，表明即使已经在def message_display（text）下定义了textSurface，也没有定义它：非常感谢帮助。

这是我的源代码：

https://pythonprogramming.net/displaying-text-pygame-screen/?completed=/adding-boundaries-pygame-video-game/ 以下是源视频：

https://www.youtube.com/watch?v=dX57H9qecCU&index=5&list=PLQVvvaa0QuDdLkP8MrOXLe_rKuf6r80KO

对比这里是我的代码：

# This just imports all the Pygame modules 
import pygame
import time

pygame.init()

display_width = 800
display_height = 600

# This initates your colors
black = (0,0,0)
# You have 256 color options so you only use 255 because one of those is 0
white = (255,255,255)
red = (255,0,0)

plyrImg_width = 30

gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('Bit Racer')
clock = pygame.time.Clock()

plyrImg = pygame.image.load('Sprite-01 double size.png')

def player(x,y):
    gameDisplay.blit(plyrImg,(x,y))

def text_objects(text, font):
    textSurface = font.render(text, True, black)
    return textSuface, textSurface.get_rect()


def message_display(text):
    largeText = pygame.font.Font('freesansbold.ttf',115)
    TextSurf, TextRect = text_objects(text, largeText)
    TextRect.center = ((display_width/2),(display_height/2))
    gameDisplay.blit(TextSurf, TextRect)

    pygame.display.update()

    time.sleep(2)

    game_loop()


def killed():
    message_display('You Died')


def game_loop():
    x = (display_width * 0.45)
    y = (display_height * 0.8)

    x_change = 0

    gameExit = False

    while not gameExit:
#         This handles any and all events in the game
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                quit()

            print(event)

            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    x_change = -5
                if event.key == pygame.K_RIGHT:
                    x_change = 5

            if event.type == pygame.KEYUP:
                if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
                    x_change = 0

        x += x_change

#        Make sure to write the background before the player
        gameDisplay.fill(white)
        player(x,y)

        if x > display_width - plyrImg_width or  x < 0:
            killed()


        pygame.display.update()
        clock.tick(60)
#     This is how you un-initiate pygame
#     This is what closes the window so always have this

# If you want to end your game loop enter this
game_loop()
pygame.quit()
quit()

Answer 1

尝试正确拼写。表面，而不是表面。

NameError：name＆＃39; textSuface＆＃39;没有定义

1 个答案: