python 贪吃蛇 怎么自己移动

转载：physique
python实现贪吃蛇
贪吃蛇的算法还是比较简单的，蛇的移动我是通过不停添加一个head方块，然后判断应该加到蛇头的哪个方向，加完后删掉蛇尾就行了，如果吃到食物就不删蛇尾。

只是一个贪吃蛇只需要70行代码左右就可以了，后来又加了计分，失败后重新游戏，暂停功能····结果现在代码乱成渣了。。

重新游戏部分肯定有更好的方法，我写的太乱了。。求大神指教。由于没用网格，判断吃到的时候是用范围判断的，有时候有些偏差···

代码：

复制代码
1 #-- coding: utf-8 --
2 import pygame, sys, random, time
3 from pygame.locals import *
4
5 pygame.init()
6 font = pygame.font.Font(u"c:\windows\fonts\MSYH.ttf",30)
7 mainClock = pygame.time.Clock()
8 wsurface = pygame.display.set_mode((800,600),0,32)
9 pygame.display.set_caption("My_Snake~")
10
11 Len = 20
12 snakeRect = []
13 for i in range(10,13):
14 snakeRect.append(pygame.Rect(i * (Len) , 50 , Len, Len))
15 food = pygame.Rect(10 (Len), 10 (Len), Len, Len)
16 ml = False
17 mr = True
18 mu = False
19 md = False
20 score = 0
21 black = (0, 0, 0)
22 green = (0, 255, 0)
23 white = (255, 255, 255)
24 global FPSCLOCK
25 FPSCLOCK = pygame.time.Clock()
26 #####################################################
27 def judge():
28 if snakeRect[0].left - 15 <= food.left <= snakeRect[0].left + 15 and snakeRect[0].top - 15 <= food.top <= snakeRect[0].top + 15:
29 return True
30 def judge2(a, b):
31 if a.left - 15 <= b.left <= a.left + 15 and a.top - 15 <= b.top <= a.top + 15:
32 return True
33 def checkForKeyPress():
34 #checkForQuit()
35 for event in pygame.event.get([KEYDOWN, KEYUP]):
36 if event.type == KEYUP:
37 continue
38 return event.key
39 return None
40 #######################################################
41 flagg = True
42 speed = 8
43 while True:
44 for event in pygame.event.get():
45 if event.type == QUIT:
46 pygame.QUIT()
47 sys.exit()
48 if event.type == KEYDOWN:
49 if event.key == K_r:
50 snakeRect = []
51 for i in range(10,13):
52 snakeRect.append(pygame.Rect(i * (Len) , 50 , Len, Len))
53 food = pygame.Rect(10 (Len), 10 (Len), Len, Len)
54 ml = False
55 mr = True
56 mu = False
57 md = False
58 score = 0
59 flagg = True
60 speed = 8
61 if event.key == K_p:
62 wsurface.fill(black)
63 text_surface1 = font.render('Pause!' , True, (0, 0, 255))
64 wsurface.blit(text_surface1, (10, 50))
65 while checkForKeyPress() == None:
66 pygame.display.update()
67 FPSCLOCK.tick()
68 if event.key == K_LEFT and mr == False:
69 ml = True
70 mr = False
71 mu = False
72 md = False
73 if event.key == K_RIGHT and ml == False:
74 ml = False
75 mr = True
76 mu = False
77 md = False
78 if event.key == K_UP and md == False:
79 ml = False
80 mr = False
81 mu = True
82 md = False
83 if event.key == K_DOWN and mu == False:
84 ml = False
85 mr = False
86 mu = False
87 md = True
88 head = pygame.Rect(snakeRect[0].left,snakeRect[0].top,snakeRect[0].width,snakeRect[0].height)
89 if flagg == False:
90 continue
91 if ml == True:
92 head.right = head.left - 1
93 if mr == True:
94 head.left = head.right + 1
95 if mu == True:
96 head.bottom = head.top - 1
97 if md == True:
98 head.top = head.bottom + 1
99 snakeRect.insert(0, head)
100 #判断失败和重新游戏
101 if head.right < 0 or head.left > 800 or head.bottom < 0 or head.top > 600 or snakeRect[0] in snakeRect[1:]:
102 wsurface.fill(white)
103 text_surface2 = font.render('Press R to restart!' , True, (0, 0, 255))
104 wsurface.blit(text_surface2, (50, 80))
105 pygame.display.update()
106 while checkForKeyPress() == None:
107 pygame.display.update()
108 FPSCLOCK.tick()
109 break
110 flagg = False
111 continue
112 flagg = True
113 if judge():
114 score = score + 10
115 speed = speed + 1
116 while True:
117 flag = True
118 food.left = random.randrange(10,800)
119 food.top = random.randrange(10,600)
120 for temp in snakeRect:
121 if judge2(food, temp):
122 flag = False
123 if flag == True:
124 break
125 else:
126 snakeRect.pop()
127 wsurface.fill(black)
128 for i in range(len(snakeRect)):
129 pygame.draw.rect(wsurface,green,snakeRect[i])
130 pygame.draw.rect(wsurface,white,food)
131 text_surface = font.render(u"分数： " + str(score), True, (0, 0, 255))
132 wsurface.blit(text_surface, (10, 50))
133 pygame.display.update()
134 mainClock.tick(speed)