如何从 pygame 中删除图像

Question

我试图为我的游戏创建一个自定义菜单，为此，我制作了一个光标，以便用户能够从 3 个字符中选择一个，错误是光标的图像被复制到下一个位置和原来的位置保持不变，我想知道是否有办法删除原来的光标。

One_Right_Key = pygame.K_RIGHT

# Creating the customisation menu for the game
def Customisation(players):
    #Initiating TwoX in case there is no second player to make sure the program works correctly
    TwoX = 100
    # Placing the background onto the game
    background = pygame.image.load('Menu/Customisation Background.png')
    screen.blit(background, (0, 0))
    # Creating an array for each of the x positions of the 3 options of characters
    x = [157, 545, 954]
    # Creating the Cursor for the first player
    CursorOne = pygame.image.load('Misc/P1 Cursor.png')
    CursorOne = pygame.transform.scale(CursorOne, (124, 100))
    CursorOne_move = CursorOne.get_rect()
    # Creating a variable to give the position of the cursor and placing it onto the screen
    OneX = 0
    screen.blit(CursorOne, (x[OneX], 61))
    # Checking if there is one or two players playing the game
    if players == 2:
        # Creating the cursor for the second player
        CursorTwo = pygame.image.load('Misc/P2 Cursor.png')
        CursorTwo = pygame.transform.scale(CursorTwo, (124, 100))
        # Creating a variable to give the position of the second cursor
        TwoX = 1
        screen.blit(CursorTwo, (x[TwoX], 61))
    # Creating the back button
    Back_Text = BackButtonFont.render("Back", True, (255, 255, 255))
    # Placing the text onto the screen
    screen.blit(Back_Text, (37, 628))
    # Updating the screen
    pygame.display.update()
    # Keeps the program running
    Running = True
    while Running == True:
        for event in pygame.event.get():
            # If the user clicks on the back button
            if event.type == pygame.MOUSEBUTTONUP:
                mouse = pygame.mouse.get_pos()
                if mouse[0] >= 0 and mouse[0] <= 280 and mouse[1] > 611 and mouse[1] <= 719:
                    # Goes to the Main Menu Procedure
                    MainMenu()
                    # Exits the customisation procedure
                    exit(Customisation())
            # If the player presses a key
            if event.type == pygame.KEYDOWN:
                if event.key == One_Right_Key:
                    OneX = OneX + 1
                    # If OneX is the same as TwoX, it moves to the next one
                    if OneX == TwoX:
                        OneX = OneX + 1
                    # If OneX is over, it goes back to the first position
                    if OneX == 3:
                        OneX = 0
                    CursorOne_move.move_ip(x[OneX], 61)
                    screen.blit(CursorOne, CursorOne_move)
                pygame.display.flip()
            # If the user clicks on the cross on the top right of the window
            if event.type == pygame.QUIT:
                exit()

All the files for the game

Answer 1

您无法“删除”在屏幕上绘制的图像。您必须在每一帧中重新绘制完整的场景。删除（或“移除”）对象意味着不在下一帧绘制它。

典型的 PyGame 应用程序循环必须：

限制每秒帧数以限制 CPU 使用 pygame.time.Clock.tick
通过调用 pygame.event.pump() or pygame.event.get().
根据输入事件和时间（分别为帧）更新游戏状态和对象位置
清除整个显示或绘制背景
绘制整个场景（blit 所有对象）
通过调用 pygame.display.update() or pygame.display.flip()

如何从 pygame 中删除图像

How do you remove an image from pygame

python

pygame