代碼

#!/usr/bin/env python import pygame,sys,time,random from pygame.locals import * # 定義顏色變量 redColour = pygame.Color(255,0,0) blackColour = pygame.Color(0,0,0) whiteColour = pygame.Color(255,255,255) greyColour = pygame.Color(150,150,150)# 定義gameOver函數 def gameOver(playSurface):gameOverFont = pygame.font.Font('arial.ttf',72)gameOverSurf = gameOverFont.render('Game Over', True, greyColour)gameOverRect = gameOverSurf.get_rect()gameOverRect.midtop = (320, 10)playSurface.blit(gameOverSurf, gameOverRect)pygame.display.flip()time.sleep(5)pygame.quit()sys.exit()# 定義main函數 def main():# 初始化pygamepygame.init()fpsClock = pygame.time.Clock()# 創建pygame顯示層playSurface = pygame.display.set_mode((640,480))pygame.display.set_caption('Raspberry Snake')# 初始化變量snakePosition = [100,100]snakeSegments = [[100,100],[80,100],[60,100]]raspberryPosition = [300,300]raspberrySpawned = 1direction = 'right'changeDirection = directionwhile True:# 檢測例如按鍵等pygame事件for event in pygame.event.get():if event.type == QUIT:pygame.quit()sys.exit()elif event.type == KEYDOWN:# 判斷鍵盤事件if event.key == K_RIGHT or event.key == ord('d'):changeDirection = 'right'if event.key == K_LEFT or event.key == ord('a'):changeDirection = 'left'if event.key == K_UP or event.key == ord('w'):changeDirection = 'up'if event.key == K_DOWN or event.key == ord('s'):changeDirection = 'down'if event.key == K_ESCAPE:pygame.event.post(pygame.event.Event(QUIT))# 判斷是否輸入了反方向if changeDirection == 'right' and not direction == 'left':direction = changeDirectionif changeDirection == 'left' and not direction == 'right':direction = changeDirectionif changeDirection == 'up' and not direction == 'down':direction = changeDirectionif changeDirection == 'down' and not direction == 'up':direction = changeDirection# 根據方向移動蛇頭的坐標if direction == 'right':snakePosition[0] += 20if direction == 'left':snakePosition[0] -= 20if direction == 'up':snakePosition[1] -= 20if direction == 'down':snakePosition[1] += 20# 增加蛇的長度snakeSegments.insert(0,list(snakePosition))# 判斷是否吃掉了樹莓if snakePosition[0] == raspberryPosition[0] and snakePosition[1] == raspberryPosition[1]:raspberrySpawned = 0else:snakeSegments.pop()# 如果吃掉樹莓，則重新生成樹莓if raspberrySpawned == 0:x = random.randrange(1,32)y = random.randrange(1,24)raspberryPosition = [int(x*20),int(y*20)]raspberrySpawned = 1# 繪制pygame顯示層playSurface.fill(blackColour)for position in snakeSegments:pygame.draw.rect(playSurface,whiteColour,Rect(position[0],position[1],20,20))pygame.draw.rect(playSurface,redColour,Rect(raspberryPosition[0], raspberryPosition[1],20,20))# 刷新pygame顯示層pygame.display.flip()# 判斷是否死亡if snakePosition[0] > 620 or snakePosition[0] < 0:gameOver(playSurface)if snakePosition[1] > 460 or snakePosition[1] < 0:for snakeBody in snakeSegments[1:]:if snakePosition[0] == snakeBody[0] and snakePosition[1] == snakeBody[1]:gameOver(playSurface)# 控制游戲速度fpsClock.tick(5)if __name__ == "__main__":main()

游戲界面

總結

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