save project

snake.py

-import pygame
-from pygame import locals
-
-# 初始化pygame，为使用硬件做准备
-pygame.init()
-
-# 创建一个窗口
-screen = pygame.display.set_mode((660, 480))
-
-# 背景
-background = pygame.image.load('bg.png')
-right = pygame.image.load('right.png')
-food = pygame.image.load('apple.png')
-body = pygame.image.load('body.png')
-
-while True:
-    for event in pygame.event.get():
-        if event.type == locals.QUIT:
-            # 接收到退出事件后退出程序
-            exit()
-    # 将背景图画上去
-    screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
-    # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
-    # 将果实画上去
-    screen.blit(food, (360, 300))
-    # 刷新画面
-    pygame.display.update()
+#!/usr/bin/env python
+import pygame,sys,time,random
+from pygame.locals import *
+# 定义颜色变量
+redColour = pygame.Color(255,0,0)
+blackColour = pygame.Color(0,0,0)
+whiteColour = pygame.Color(255,255,255)
+greyColour = pygame.Color(150,150,150)
+# 定义gameOver函数
+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()
+ 
+# 定义main函数
+def main():
+ # 初始化pygame
+ pygame.init()
+ fpsClock = pygame.time.Clock()
+ # 创建pygame显示层
+ playSurface = pygame.display.set_mode((640,480))
+ pygame.display.set_caption('Raspberry Snake')
+ 
+ # 初始化变量
+ snakePosition = [100,100]
+ snakeSegments = [[100,100],[80,100],[60,100]]
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+ raspberryPosition = [300,300]
+ raspberrySpawned = 1
+ direction = 'right'
+ changeDirection = direction
+ while True:
+ # 检测例如按键等pygame事件
+ for event in pygame.event.get():
+ if event.type == QUIT:
+ pygame.quit()
+ sys.exit()
+ elif event.type == KEYDOWN:
+ # 判断键盘事件
+ 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))
+ # 判断是否输入了反方向
+ if changeDirection == 'right' and not direction == 'left':
+ direction = changeDirection
+ if changeDirection == 'left' and not direction == 'right':
+ direction = changeDirection
+ if changeDirection == 'up' and not direction == 'down':
+ direction = changeDirection
+ if changeDirection == 'down' and not direction == 'up':
+ direction = changeDirection
+ # 根据方向移动蛇头的坐标
+ if direction == 'right':
+ snakePosition[0] += 20
+ if direction == 'left':
+ snakePosition[0] -= 20
+ if direction == 'up':
+ snakePosition[1] -= 20
+ if direction == 'down':
+ snakePosition[1] += 20
+ # 增加蛇的长度
+ snakeSegments.insert(0,list(snakePosition))
+ # 判断是否吃掉了树莓
+ if snakePosition[0] == raspberryPosition[0] and snakePosition[1] == raspberryPosition[1]:
+ raspberrySpawned = 0
+ else:
+ snakeSegments.pop()
+ # 如果吃掉树莓，则重新生成树莓
+ if raspberrySpawned == 0:
+ x = random.randrange(1,32)
+ y = random.randrange(1,24)
+ raspberryPosition = [int(x*20),int(y*20)]
+ raspberrySpawned = 1
+ # 绘制pygame显示层
+ 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显示层
+ pygame.display.flip()
+ # 判断是否死亡
+ 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)
+ # 控制游戏速度
+ fpsClock.tick(10)
+ 
+if __name__ == "__main__":
+ main()
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