影子奔跑猫 pygame向前移动背景演示

下面是部分代码预览：

"""影子奔跑猫,向前移动背景演示,猫的坐标不变只是切换造型,程序其实很简单.
"""

import time
import pygame
from pygame.locals import *

class Background:
    """不断向前移动的滚动背景"""
    def __init__(self,image,screen):
        """初始化函数"""
        self.screen = screen
        self.w = screen.get_width()     # 记录屏幕宽度
        self.h = screen.get_height()    # 记录屏幕高度
        self.image = image              # image是一个surface
        self.image2 = image
        self.rect = self.image.get_rect()
        self.rect2 = self.image2.get_rect()
        self.rect2.right = 0           # 两个surface相隔一个屏幕宽度
        self.dx = 50
        
class Cat:
    """猫类,生成后会不断地切换造型"""
    def __init__(self,images):
        self.frames = images
        self.amounts = len(images)     # 帧数
        self.index = 0                 # 初始帧索引
        self.image = self.frames[self.index]
        self.rect = self.image.get_rect()
        self.interval = 0.01            # 帧切换的间隔时间
        self.start_time = time.time()    
    
if __name__ == "__main__":

    width,height = 960,720
    screen = pygame.display.set_mode((width,height))
    pygame.display.set_caption("影子奔跑猫 pygame向前移动背景演示,www.lixingqiu.com")

    pygame.mixer.init()
    pygame.mixer.music.load("The Downtown Fic.wav")
    pygame.mixer.music.play(-1,0)

    bgs = pygame.image.load("costume1.png")
    background = Background(bgs,screen)

    cat_images = [f"frames/frame{index}.png" for index in range(20)]
    cat_frames = [pygame.image.load(image).convert_alpha() for image in cat_images]
    shadow_cat = Cat(cat_frames)
    shadow_cat.rect.center = width//2,height//2
    clock = pygame.time.Clock()
    running = True
    while running:
        for event in pygame.event.get():
            if event.type == QUIT:running = False
            
        background.update()
        shadow_cat.update()


    pygame.quit()

        

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