【python作业】贪吃蛇-pygame

gascd

github项目地址

1. import sys
   
2. import pygame
   
3. import random
   
4. 
   
5. WindowSize = ( 720, 480 )
   
6. fontSize = 20
   
7. cellSize = 16
   
8. mpSize = int(WindowSize[0]/cellSize), int(WindowSize[1]/cellSize)
   
9. #蛇的速度
   
10. snakeSpeed = 10
    
11. 
    
12. #颜色定义
    
13. colorBlack = ( 0, 0, 0)
    
14. colorRed = ( 255, 0, 0)
    
15. colorGreen = ( 0, 255, 0)
    
16. colorBlue = ( 0, 0, 255)
    
17. colorDarkBlue = ( 0, 0, 120)
    
18. 
    
19. #方向定义
    
20. left = 0
    
21. down = 1
    
22. up = 2
    
23. right = 3
    
24. 
    
25. #入口函数
    
26. def main():
    
27.     pygame.init()
    
28.     screen = pygame.display.set_mode(WindowSize)
    
29.     pygame.display.set_caption("贪吃蛇小游戏~~")
    
30.     snakeClock = pygame.time.Clock()
    
31.     imgGameStart = pygame.image.load('./img/gameStart.jpg')
    
32. 
    
33.     while 1:
    
34.         showGameStartInfo(screen, imgGameStart)
    
35.         gameRunning(screen, snakeClock)
    
36.         
    
37. #展示游戏开始信息
    
38. def showGameStartInfo(screen, imgGameStart):
    
39.     font = pygame.font.Font("./font/msyh.ttc", fontSize)
    
40.     screen.blit(imgGameStart, (0,0))
    
41.     fontBuffer = font.render("按任意键开始游戏", True, colorRed)
    
42.     screen.blit(fontBuffer, (250, 300))
    
43.     fontBuffer = font.render("按q或ESC结束游戏", True, colorRed)
    
44.     screen.blit(fontBuffer, (250, 300 + fontSize))      
    
45.     pygame.display.update()
    
46. 
    
47.     while True:
    
48.         for event in pygame.event.get():
    
49.             justiceGameOver(event)
    
50.             if event.type == pygame.KEYDOWN:
    
51.                 return
    
52.       
    
53. #退出游戏
    
54. def terminate():
    
55.     pygame.quit()
    
56.     sys.exit()   
    
57. 
    
58. #展示游戏结束信息
    
59. def showGameOverInfo(screen, imgGameEnd, score):
    
60.     font = pygame.font.Font("./font/msyh.ttc", fontSize)
    
61.     screen.blit(imgGameEnd, (0,0))
    
62.     fontBuffer = font.render("你的得分是%s" % score, True, colorRed)
    
63.     screen.blit(fontBuffer, (250, 300 - fontSize))
    
64.     fontBuffer = font.render("按r重新开始游戏", True, colorRed)
    
65.     screen.blit(fontBuffer, (250, 300))
    
66.     fontBuffer = font.render("按q或ESC结束游戏", True, colorRed)
    
67.     screen.blit(fontBuffer, (250, 300 + fontSize))      
    
68.     pygame.display.update()
    
69.     while True:
    
70.         for event in pygame.event.get():
    
71.             justiceGameOver(event)
    
72.             if event.type == pygame.KEYDOWN:
    
73.                 if event.key == pygame.K_r:
    
74.                     return
    
75. 
    
76. #游戏运行主体
    
77. def gameRunning(screen, snakeClock):
    
78.     startxy = [random.randint(5, mpSize[0]-5), random.randint(5, mpSize[1]-5)]
    
79.     snake = [
    
80.         {'x':startxy[0], 'y':startxy[1]},
    
81.         {'x':startxy[0]-1, 'y':startxy[1]},
    
82.         {'x':startxy[0]-2, 'y':startxy[1]}
    
83.     ]
    
84.     direction = right
    
85.     score = 0
    
86.     food = CreateFood(screen)
    
87. 
    
88.     while True:
    
89.         if food not in snake:
    
90.             del snake[-1]
    
91.         else:
    
92.             score += 1
    
93.             food = CreateFood(screen)
    
94.         for event in pygame.event.get():
    
95.             justiceGameOver(event)
    
96.             direction = justiceSnakeTurn(event, direction)
    
97.         snakeMove(direction, snake)
    
98.         if not isSnakeAlive(snake):
    
99.             imgGameEnd = pygame.image.load('./img/gameEnd.jpg')
    
100.             showGameOverInfo(screen, imgGameEnd, score)
     
101.             return
     
102.         screen.fill(colorBlack)
     
103.         DrawFood(screen, food)
     
104.         DrawSnake(screen, snake)
     
105.         DrawScore(screen, score)
     
106.         pygame.display.update()
     
107.         
     
108.         snakeClock.tick(snakeSpeed)
     
109. 
     
110. #判断蛇是否活着 超出边界 吃到自己就是死
     
111. def isSnakeAlive(snake):
     
112.     if snake[0]['x'] == -1 or snake[0]['x'] == mpSize[0] or snake[0]['y'] == -1 or snake[0]['y'] == mpSize[1]:
     
113.         return False
     
114.     elif snake[0] in snake[1:]:
     
115.         return False
     
116.     return True
     
117. 
     
118. #蛇移动
     
119. def snakeMove(direction, snake):
     
120.     if direction == left:
     
121.         tmp = {'x':snake[0]['x']-1, 'y':snake[0]['y']}
     
122.     elif direction == down:
     
123.         tmp = {'x':snake[0]['x'], 'y':snake[0]['y']+1}
     
124.     elif direction == up:
     
125.         tmp = {'x':snake[0]['x'], 'y':snake[0]['y']-1}
     
126.     elif direction == right:
     
127.         tmp = {'x':snake[0]['x']+1, 'y':snake[0]['y']}
     
128. 
     
129.     snake = snake.insert(0, tmp)
     
130. #画出蛇
     
131. def DrawSnake(screen, snake):
     
132.     for i in snake:
     
133.         x = i['x'] * cellSize
     
134.         y = i['y'] * cellSize
     
135.         tmp = (x, y, cellSize, cellSize)
     
136.         pygame.draw.rect(screen, colorDarkBlue, tmp)
     
137.         tmp = (x+3, y+3, cellSize-6, cellSize-6)
     
138.         pygame.draw.rect(screen, colorBlue, tmp)
     
139. 
     
140. 
     
141. #创造食物
     
142. def CreateFood(screen):
     
143.     xy = {'x':random.randint(0, mpSize[0]-1), 'y':random.randint(0, mpSize[1]-1)}
     
144.     return xy
     
145. #画出食物
     
146. def DrawFood(screen, xy):
     
147.     x = xy['x'] * cellSize
     
148.     y = xy['y'] * cellSize
     
149.     appleRect = (x, y, cellSize, cellSize)
     
150.     pygame.draw.rect(screen, colorGreen, appleRect)
     
151. #画出分数
     
152. def DrawScore(screen, score):
     
153.     font = pygame.font.Font("./font/msyh.ttc", fontSize)
     
154.     fontBuffer = font.render("得分:%s" % score, True, colorRed)
     
155.     screen.blit(fontBuffer, (600 ,0))
     
156. 
     
157. #判断蛇转弯的方向
     
158. def justiceSnakeTurn(event, direction):
     
159.     if event.type == pygame.KEYDOWN:
     
160.         if event.key in (pygame.K_LEFT, pygame.K_a) and direction != right:
     
161.             direction = left
     
162.         elif event.key in  (pygame.K_RIGHT, pygame.K_d) and direction != left:
     
163.             direction = right
     
164.         elif event.key in (pygame.K_UP, pygame.K_w) and direction != down:
     
165.             direction = up
     
166.         elif event.key in (pygame.K_DOWN, pygame.K_s) and direction != up:
     
167.             direction = down
     
168. 
     
169.     return direction
     
170. 
     
171. #判断游戏是否应该结束
     
172. def justiceGameOver(event):
     
173.     if event.type == pygame.QUIT:
     
174.         terminate()
     
175.     elif event.type == pygame.KEYDOWN:
     
176.         if event.key == pygame.K_q or event.key == pygame.K_ESCAPE:
     
177.             terminate()
     
178.         
     
179. 
     
180. main()

复制代码

Sungne_jer

厉害

乘号

这么好的贴竟然沉了!

小琳1011

牛

17851305596

F:\Python\python.exe "F:/Program Files/untitled/3.py"
pygame 1.9.6
Hello from the pygame community. https://www.pygame.org/contribute.html
Traceback (most recent call last):
  File "F:/Program Files/untitled/3.py", line 195, in <module>
    main()
  File "F:/Program Files/untitled/3.py", line 32, in main
    imgGameStart = pygame.image.load('./img/gameStart.jpg')
pygame.error: Couldn't open ./img/gameStart.jpg
这是什么错误啊

gascd

17851305596 发表于 2020-4-14 00:46
F:\Python\python.exe "F:/Program Files/untitled/3.py"
pygame 1.9.6
Hello from the pygame community ...

这个是无法打开那个图片。
因为我没有写异常处理，所以他会直接报错。
你去github里吧源码整个都下载下就可以了。