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python - 如何将图像的背景颜色与 Pygame 的背景颜色匹配？

问题描述

我需要制作一个在屏幕中心绘制角色并将图像的背景颜色与屏幕背景颜色匹配的类，反之亦然。我已经将 Pygame 屏幕的背景颜色值设置为蓝色，但是当我在DrawCharacter课堂上执行相同操作时，它只会以图像的背景颜色（白色）打开屏幕。我可能只是将bg_color属性放在课堂上的错误位置。

游戏角色.py 

import sys
import pygame

class DrawCharacter():
    bg_color = ((0, 0, 255))
    def __init__(self, screen):
        """Initialize the superman and set starting position"""
        self.screen = screen

        # Load image and get rect
        self.image = pygame.image.load("Images/supermen.bmp")
        self.rect = self.image.get_rect()
        self.screen_rect = screen.get_rect()

        # Start each new supermen at the center of the screen
        self.rect.centerx = self.screen_rect.centerx
        self.rect.centery = self.screen_rect.centery

    def blitme(self):
        """Draw the superman at its current location"""
        self.screen.blit(self.image, self.rect)

blue_sky.py 

import  sys
import pygame
from game_character import DrawCharacter

def run_game():
    # Initialize game and make screen object
    pygame.init()
    screen = pygame.display.set_mode((1200, 800))
    pygame.display.set_caption("Blue Sky")
    bg_color = (0, 0, 255)

    # Make superman
    superman = DrawCharacter(screen)

    # Start the main loop for the game
    while True:

        # Check for keyboard and mouse events
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                sys.exit()

        # Redraw screen during each loop pass
        screen.fill(bg_color)
        superman.blitme()
        # make the most recently drawn screen visible
        pygame.display.flip()
    run_game()

我希望图像的背景颜色与 Pygame 屏幕的背景颜色相同，但事实并非如此。第一个代码块是我的类文件，而第二个是 pygame 文件

标签： pythonpygame

解决方案

如果图像具有透明背景，请尝试在 game_Character.py 中执行以下操作：

# Load image and get rect
    self.image = pygame.image.load("Images/supermen.bmp").convert_alpha()
    self.rect = self.image.get_rect()
    self.screen_rect = screen.get_rect()

如果它具有白色背景，您可能希望像这样设置颜色键：

    # Load image and get rect
        self.image = pygame.image.load("Images/supermen.bmp").convert()
        self.image.set_colorkey((255, 255, 255))
        self.rect = self.image.get_rect()
        self.screen_rect = screen.get_rect()

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