一、创建设置(Settings)类
新建：\settings.py:

class Settings:
    """存储所有的设置"""

    def __init__(self):
        """初始化游戏设置"""
        # 屏幕设置
        self.screen_width = 1200
        self.screen_height = 800
        self.bg_color = (230, 230, 230)

更新：\FatChickenWars.py:

import...

from settings import Settings

def run_game():  # 游戏初始化
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode((ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("肥鸡大战")
	...
	while True:#主循环
		...
		# 填充背景色
        screen.fill(ai_settings.bg_color)
        ...

调试无误。

二、创建肥鸡(Chicken)类
1.找张帅气的肥鸡图
\images\QQChicken.png:

有如此强鸡，何愁战之不胜？
2.肥鸡(Chicken)类
新建：\chicken.py:

import pygame


class Chicken():
    def __init__(self, screen):
        """肥鸡初始化"""
        self.screen = screen

        # 加载肥鸡图像并获取其外接矩形
        self.image = pygame.image.load('images/QQChicken.png')
        self.rect = self.image.get_rect()
        self.screen_rect = screen.get_rect()

        # 将肥鸡放在屏幕底部中央
        self.rect.centerx = self.screen_rect.centerx
        self.rect.bottom = self.screen_rect.bottom

    def blitme(self):
        """在指定位置绘制肥鸡"""
        self.screen.blit(self.image, self.rect)

更新：\FatChickenWars.py:

import sys
import pygame

from settings import Settings
from chicken import Chicken


def run_game():  # 游戏初始化
    pygame.init()
    fcw_settings = Settings()
    screen = pygame.display.set_mode((fcw_settings.screen_width, fcw_settings.screen_height))
    pygame.display.set_caption("肥鸡大战")

    # 创建一只肥鸡
    chicken = Chicken(screen)

    # 主循环
    while True:
        # 监视键盘和鼠标事件
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                sys.exit()

        # 填充背景色
        screen.fill(fcw_settings.bg_color)

        chicken.blitme()  # 绘制鸡

        # 刷新屏幕
        pygame.display.flip()


run_game()

效果极其优雅。

2021.1.20