Question

我一直在使用pygame并尝试学习它。如果你想打电话给我这样做，我已经能够制作一个“按钮”。我有main（）显示主菜单。然后pick_level（），它将允许您选择您想要播放的级别。我的问题是，一旦pick_level（）执行，将main（）文本从屏幕上移开。以下是我的代码。由于某种原因，它没有正确应对..

#import games
import pygame
from pygame.locals import *
import sys


pygame.init()


DISPLAYSURF = pygame.display.set_mode((1024, 720), 0, 32)
pygame.display.set_caption('The End')

#Set color of main menu
BLUE = (0, 0, 255)
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
DISPLAYSURF.fill(BLUE)

# Set up text to show.
myfont = pygame.font.SysFont("curier new", 45)
gameFont = pygame.font.SysFont("times new roman", 20)

def main():
""" Main Program """
# render text
lbltheEnd = myfont.render("The End", 1, WHITE)
lblchooseLevel = gameFont.render("Choose Level", 1, WHITE)
lblCredits = gameFont.render("Credits", 1, WHITE)
lblexit = gameFont.render("Exit", 1, WHITE)

DISPLAYSURF.blit(lbltheEnd, (100, 100))

#rectangle for button click
global btnChooseLevel
btnChooseLevel = pygame.draw.rect(DISPLAYSURF, BLACK, (98, 150, 111, 25))
DISPLAYSURF.blit(lblchooseLevel, (100, 150))


def pick_level():
""" Show pick Level """
lblLevel = myfont.render("Level 1", 1, WHITE)
DISPLAYSURF.blit(lblLevel, (100, 100))


# Run the program
main()
while True:
for event in pygame.event.get():
    if event.type == QUIT:
        pygame.quit()
        sys.exit()

    # Clicks for make shift buttons
    if event.type == MOUSEBUTTONUP:
        print(str(event.pos[0]) + " " + str(event.pos[1]))

        if(btnChooseLevel.collidepoint(event.pos)):
            print("Choose Level Clicked")
            pick_level()


    pygame.display.update()

Answer 1

最快的方法是清除整个屏幕并重新绘制所需的新内容。您可以添加pick_level()中的内容：

DISPLAYSURF.fill(BLUE) #if BLUE is your background color or whatever background color you want

然后是pick_level()代码的其余部分

为了方便起见，您应该使用一个名为draw_background()的方法来绘制每个菜单的基本背景，然后您可以在其上绘制特定的文本/图像。

从屏幕清除文本并添加新文本

1 个答案: