python图形用户界面和游戏开发

from enum import Enum, unique from math import sqrt from random import randint import pygame @unique class Color(Enum): """颜色""" RED = (255, 0, 0) GREEN = (0, 255, 0) BLUE = (0, 0, 255) BLACK = (0, 0, 0) WHITE = (255, 255, 255) GRAY = (242, 242, 242) @staticmethod def random_color(): """获得随机颜色""" r = randint(0, 255) g = randint(0, 255) b = randint(0, 255) return (r, g, b) class Ball(object): """球""" def __init__(self, x, y, radius, sx, sy, color=Color.RED): """初始化方法""" self.x = x self.y = y self.radius = radius self.sx = sx self.sy = sy self.color = color self.alive = True def move(self, screen): """移动""" self.x += self.sx self.y += self.sy if self.x - self.radius <= 0 or self.x + self.radius >= screen.get_width(): self.sx = -self.sx if self.y - self.radius <= 0 or self.y + self.radius >= screen.get_height(): self.sy = -self.sy def eat(self, other): """吃其他球""" if self.alive and other.alive and self != other: dx, dy = self.x - other.x, self.y - other.y distance = sqrt(dx ** 2 + dy ** 2) if distance < self.radius + other.radius \ and self.radius > other.radius: other.alive = False self.radius = self.radius + int(other.radius * 0.146) def draw(self, screen): """在窗口上绘制球""" pygame.draw.circle(screen, self.color, (self.x, self.y), self.radius, 0) def main(): # 定义用来装所有球的容器 balls = [] # 初始化导入的pygame中的模块 pygame.init() # 初始化用于显示的窗口并设置窗口尺寸 screen = pygame.display.set_mode((800, 600)) print(screen.get_width()) print(screen.get_height()) # 设置当前窗口的标题 pygame.display.set_caption('大球吃小球') # 定义变量来表示小球在屏幕上的位置 x, y = 50, 50 running = True # 开启一个事件循环处理发生的事件 while running: # 从消息队列中获取事件并对事件进行处理 for event in pygame.event.get(): if event.type == pygame.QUIT: running = False if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1: x, y = event.pos radius = randint(10, 100) sx, sy = randint(-10, 10), randint(-10, 10) color = Color.random_color() ball = Ball(x, y, radius, sx, sy, color) balls.append(ball) screen.fill((255, 255, 255)) for ball in balls: if ball.alive: ball.draw(screen) else: balls.remove(ball) pygame.display.flip() # 每隔50毫秒就改变小球的位置再刷新窗口 pygame.time.delay(50) for ball in balls: ball.move(screen) for other in balls: ball.eat(other) if __name__ == '__main__': main()