本文实例为大家分享了pygame实现雷电游戏开发代码,供大家参考,具体内容如下
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stars.py
#-*- coding=utf-8 -*- #!/usr/bin/python import pygame from pygame.locals import * from random import randint import math class Star(object): def __init__(self, x, y, speed, color=(255,255,255)): self.x = x self.y = y self.speed = speed self.color = color class Stars(object): ''' 用于绘制星星背景 ''' def __init__(self, num = 0, SCREEN_SIZE=(800,600), color=(255,255,255)): self.stars = [] self.MIN_SPEED = 10 self.MAX_SPEED = 300 self.SCREEN_SIZE = SCREEN_SIZE if num > 0: self.create_star(num, color) def set_min_speed(self,speed): self.MIN_SPEED = speed def set_max_speed(self,speed): self.MAX_SPEED = speed def create_star(self,num = 1, color = (255,255,255)): '''创建一个或多个星星,颜色可选''' for i in xrange(0,num): x = float(randint(0, self.SCREEN_SIZE[0])) y = float(randint(0, self.SCREEN_SIZE[1])) speed = float(randint(self.MIN_SPEED, self.MAX_SPEED)) self.stars.append( Star(x, y, speed, color) ) def move(self,time_passed_seconds): '''移动星星并过滤''' for star in self.stars: star.y = star.y + time_passed_seconds * star.speed #过滤跑出画面的星星 self.stars = filter(lambda one: one.y<=self.SCREEN_SIZE[1], self.stars) def draw(self, surface): '''将星星画到指定图像对象''' for star in self.stars: #pygame.draw.aaline(surface, star.color,\ # (star.x, star.y), (star.x+1., star.y)) surface.set_at((int(star.x),int(star.y)),star.color) def test(): pygame.init() screen = pygame.display.set_mode((800, 600)) #, FULLSCREEN) stars = Stars() #stars.set_max_speed(1000) #stars.set_min_speed(300) # 在第一帧,画上一些星星 stars.create_star(200) clock = pygame.time.Clock() white = (255, 255, 255) while True: for event in pygame.event.get(): if event.type == QUIT: return if event.type == KEYDOWN: return time_passed = clock.tick(30) time_passed_seconds = time_passed / 1000. #update_background(stars, screen, time_passed_seconds) # 增加一颗新的星星 stars.create_star(1) stars.move(time_passed_seconds) screen.fill((0, 0, 0)) # 绘制所有的星 stars.draw(screen) pygame.display.update() if __name__ == "__main__": test()
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