【程序源代码】python像素贪吃蛇

"""功能：python像素贪吃蛇作者：程序源代码时间：2020-07-15"""# 导入相关模块与函数import randomimport pygameimport sysfrom pygame.locals import *# 初始化pygamepygame.init()# 表明四个全局变量global Speedglobal Trackingtimeglobal Displayobjectglobal WindowTypefaceSpeed = 8Trackingtime = pygame.time.Clock() # 创建跟踪时间对象Displayobject = pygame.display.set_mode((640, 480)) # 设置窗口高宽640*480WindowTypeface = pygame.font.SysFont('Calibri.ttf', 25) # 创建Typeface对象并设置字体和字号pygame.display.set_caption('像素贪吃蛇') # 设置窗口标题backgroundcolor = (255, 255, 255) # 设置窗口底色为纯白色# 侦测键盘操作def CheckKeyboardPress(): if len(pygame.event.get(QUIT)) > 0: pygame.quit() sys.exit() keyUpEvents = pygame.event.get(KEYUP) if len(keyUpEvents) == 0: return None return keyUpEvents[0].key# 游戏开始界面设计def DesignStartScreen(): global Speed titleTypeface1 = pygame.font.SysFont('Calibri.ttf', 200) titleTypeface2 = pygame.font.SysFont('Calibri.ttf', 60) titleContent1 = titleTypeface1.render('RETRO SNAKER', True, (0, 0, 0), (0, 0, 0)) # 设置主界面文字和大小 titleContent2 = titleTypeface2.render('RETRO SNAKER', True, (255, 0, 0)) KeyboardContent = WindowTypeface.render('Press any key to start', True, (0, 0, 0)) Displayobject.fill(backgroundcolor) revolveContent1 = pygame.transform.rotate(titleContent1, 0) revolveRect1 = revolveContent1.get_rect() revolveRect1.center = (640 / 2, 480 / 2) Displayobject.blit(revolveContent1, revolveRect1) revolveContent2 = pygame.transform.rotate(titleContent2, 0) revolveRect2 = revolveContent2.get_rect() revolveRect2.center = (640 / 2, 480 / 2) Displayobject.blit(revolveContent2, revolveRect2) # 获得一个对象的rect，以便于设置其坐标位置 KeyboardRect = KeyboardContent.get_rect() KeyboardRect.topleft = (640 - 200, 480 - 30) Displayobject.blit(KeyboardContent, KeyboardRect.topleft) pygame.display.update() Trackingtime.tick(Speed) while True: if CheckKeyboardPress(): pygame.event.get() # 清除事件队列 return# 游戏结束界面设计def DesignGameOverScreen(): gameOverTypeface = pygame.font.SysFont('Calibri.ttf', 100) gameoverContent = gameOverTypeface.render('Game Over', True, (0, 0, 0)) KeyboardContent = WindowTypeface.render('Press any key to restart', True, (0, 0, 0)) gameoverRect = gameoverContent.get_rect() gameoverRect.center = (640 / 2, 480 / 2) Displayobject.blit(gameoverContent, gameoverRect) # 获得一个对象的rect，以便于设置其坐标位置 KeyboardRect = KeyboardContent.get_rect() KeyboardRect.topleft = (640 - 220, 480 - 30) Displayobject.blit(KeyboardContent, KeyboardRect.topleft) pygame.display.update() pygame.time.wait(600) while True: if CheckKeyboardPress(): pygame.event.get() # 清除事件队列 return# 贪吃蛇蛇身设计def DesignRetroSnaker(RetroSnakerCoords): for coord in RetroSnakerCoords: x = coord['x'] * 20 # 规定每行单元格的大小为20 y = coord['y'] * 20 RetroSnakerSegmentRect = pygame.Rect(x, y, 20, 20) pygame.draw.rect(Displayobject, (0, 0, 255), RetroSnakerSegmentRect) RetroSnakerInnerSegmentRect = pygame.Rect(x + 4, y + 4, 20 - 8, 20 - 8) pygame.draw.rect(Displayobject, (173, 216, 230), RetroSnakerInnerSegmentRect)# 苹果设计def DesignApple(coord): x = coord['x'] * 20 # 规定单元格的大小为20 y = coord['y'] * 20 appleRect = pygame.Rect(x, y, 20, 20) pygame.draw.rect(Displayobject, (255, 0, 0), appleRect)# 得分分数设计def DesignScore(score): scoreContent = WindowTypeface.render('Score: %s' % (score), True, (0, 0, 0)) scoreRect = scoreContent.get_rect() scoreRect.topleft = (640 - 100, 10) Displayobject.blit(scoreContent, scoreRect)# 边框线设计def DesignBorderline(): for x in range(0, 640, 640 - 1): # 绘制垂直线 pygame.draw.line(Displayobject, (0, 0, 0), (x, 0), (x, 480), 5) for y in range(0, 480, 480 - 1): # 绘制平行线 pygame.draw.line(Displayobject, (0, 0, 0), (0, y), (640, y), 5)# 设置游戏主要运行机制def GameRunning(): global Speed # 设置随机起点 startx = random.randint(5, 26) # 初始单元格位置横向在(5, 26)范围中选一个随机数 starty = random.randint(5, 18) # 初始单元格位置纵向在(5, 18)范围中选一个随机数 RetroSnakerCoords = [{'x': startx, 'y': starty}, {'x': startx - 1, 'y': starty}, {'x': startx - 2, 'y': starty}] # RetroSnakerCoords：列表，贪吃蛇坐标位置 direction = 'right' # 初始方向朝右 # 设置苹果在一个随机位置 apple = {'x': random.randint(0, 31), 'y': random.randint(0, 23)} while True: # 游戏主循环 # 判断键盘事件 for event in pygame.event.get(): # 事件处理循环 if event.type == KEYDOWN: if event.key == K_LEFT and direction != 'right': direction = 'left' elif event.key == K_RIGHT and direction != 'left': direction = 'right' elif event.key == K_UP and direction != 'down': direction = 'up' elif event.key == K_DOWN and direction != 'up': direction = 'down' # 根据方向改变蛇头的坐标 if direction == 'up': m = {'x': RetroSnakerCoords[0]['x'], 'y': RetroSnakerCoords[0]['y'] - 1} elif direction == 'down': m = {'x': RetroSnakerCoords[0]['x'], 'y': RetroSnakerCoords[0]['y'] + 1} elif direction == 'left': m = {'x': RetroSnakerCoords[0]['x'] - 1, 'y': RetroSnakerCoords[0]['y']} elif direction == 'right': m = {'x': RetroSnakerCoords[0]['x'] + 1, 'y': RetroSnakerCoords[0]['y']} # 通过向贪吃蛇移动的方向添加一个单元格来加长贪吃蛇 RetroSnakerCoords.insert(0, m) # 侦测贪吃蛇是否吃到苹果 if RetroSnakerCoords[0]['x'] == apple['x'] and RetroSnakerCoords[0]['y'] == apple['y']: apple = {'x': random.randint(0, 31), 'y': random.randint(0, 23)} # 在随机位置放置一个苹果 Speed = Speed + 0.2 else: del RetroSnakerCoords[-1] # 去除贪吃蛇的尾段 # 侦测贪吃蛇是否触碰到窗口边缘或自身 if RetroSnakerCoords[0]['x'] == -1 or RetroSnakerCoords[0]['x'] == 32 or RetroSnakerCoords[0]['y'] == -1 or \ RetroSnakerCoords[0]['y'] == 24: return # 游戏结束 for RetroSnakerBody in RetroSnakerCoords[1:]: if RetroSnakerCoords[0]['x'] == RetroSnakerBody['x'] and RetroSnakerCoords[0]['y'] == RetroSnakerBody['y']: return # 游戏结束 # 绘制相关角色在窗口中 Displayobject.fill(backgroundcolor) DesignRetroSnaker(RetroSnakerCoords) DesignApple(apple) DesignScore(len(RetroSnakerCoords) - 3) DesignBorderline() pygame.display.update() # 让绘制的东西显示在屏幕上 Trackingtime.tick(Speed)# 主函数if __name__ == '__main__': DesignStartScreen() # 初始化游戏开始界面 while True: GameRunning() # 游戏开始 DesignGameOverScreen() # 游戏结束