我想知道在 pygame 中单击按钮时是否可以删除图像

Question

我试图在单击 1 个键时删除图像。

import pygame
import pygame.freetype
import random

# Intialise pygame
pygame.init()
pygame.font.init()

screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)  # Fullscreen

卡片

cards = (pygame.image.load('image/london.png'), pygame.image.load('image/america.png'))

def card():
    screen.blit(card_size[0], (100, 40))
    screen.blit(card_size[1], (330, 40))

游戏循环

程序的循环从这里开始

running = True
while running:
    screen.fill((255, 194, 102))  # RGB
    for event in pygame.event.get(): # Event handler
        if event.type == pygame.QUIT:
            running = False

在这里，我尝试从列表中删除项目，但没有成功。

    if event.type == pygame.KEYDOWN:
        if event.key == ord('1'):
            cards.remove()
        if event.key == ord('2'):
            print('gone')

card()
pygame.display.update()

Answer 1

删除图像意味着不绘制图像。有不同的解决方案。

解决方案 1：

循环绘制图像：

cards = [
    pygame.image.load('image/london.png'), 
    pygame.image.load('image/america.png')]

def card():
    for i in range(len(cards)):
        screen.blit(cards[i], (100 + i*230, 40))

pop 按键时的图像：

while running:
    # [...]

    for event in pygame.event.get():
        # [...]

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_1 and len(cards) > 0:
                cards.pop(0)
            if event.key == pygame.K_2 and len(cards) > 1:
                cards.pop(1)

解决方案 2：

添加一个列表，指示是否需要绘制图像：

cards_active = [True, True]
def card():
    for i in range(len(cards)):
        if cards_active[i]:
            screen.blit(cards[i], (100 + i*230, 40))

按下某个键时切换列表中的状态：

while running:
    # [...]

    for event in pygame.event.get():
        # [...]

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_1 and len(cards) > 0:
                cards_active[0] = not cards_active[0]
            if event.key == pygame.K_2 and len(cards) > 1:
                cards_active[1] = not cards_active[1]

我想知道在 pygame 中单击按钮时是否可以删除图像

I would like to know if i can remove an image when button is clicked in pygame

python

pygame