python小项目之五子棋游戏

更新时间：2020-08-16 07:30:02 作者：startmvc

本文实例为大家分享了python五子棋游戏的具体代码，供大家参考，具体内容如下1.项目简介

本文实例为大家分享了python五子棋游戏的具体代码，供大家参考，具体内容如下

1.项目简介

在刚刚学习完python套接字的时候做的一个五子棋小游戏，可以在局域网内双人对战，也可以和电脑对战

2.实现思路

局域网对战

对于局域网功能来说，首先建立连接（tcp），然后每次下棋时将棋子的坐标发送给对方，当接收到坐标后实例化成棋子对象，这个接收时用了select函数，因为pygame需要循环渲染图片，所以要用非阻塞方式接收消息

select()的机制中提供一fd_set的数据结构，实际上是一long类型的数组，每一个数组元素都能与一打开的文件句柄（不管是Socket句柄，还是其他文件或命名管道或设备句柄）建立联系，建立联系的工作由程序员完成，当调用select()时，由内核根据IO状态修改fd_set的内容，由此来通知执行了select()的进程哪一Socket或文件可读或可写，主要用于Socket通信当中

主要代码如下：


# 接收cli的消息
if is_people:
 rs, ws, es = select.select(inputs, [], [], 0)
 for r in rs:
 if r is tcpclisock:
 try:
 data = r.recv(BUFSIZ)
 islink = True
 print(data.decode('utf8'))
 if data.decode('utf8') == 'again':
 is_recieve1 = True
 if data.decode('utf8') == 'yes':
 is_playagain = True
 is_play = True
 if data.decode('utf8') == 'no':
 is_recieve2 = True
 islink = False
 if not is_play and not result:
 me = storn.Storn_Black(eval(data))
 black_chesses.append(me)
 chesses.append(me)
 is_play = True
 except error:
 islink = False

电脑对战

电脑对战的思路也很简单，用了应该是最常见的也是最简单的方法，就是循环遍历棋盘的每一个点，判断该点的价值，选取价值最大的点落子，这个需要对五子棋的棋型有一定了解，这里介绍几种常见的棋型（约定1为己方棋子，2为对方棋子，0为空）

活四（011110）：这时候四颗棋子相连，同时两端为空，已经阻止不了一方的胜利了，此时价值应该设置最高死四（011112|10111|11011）：四颗棋子，只有一个地方能形成连五，如果是自己的棋可以赢，是对方的也可以阻止对方赢棋，此时价值次高

就这样把每种棋型判断一下，获得该点的价值，主要代码如下：


# 判断每个点的价值
def point_value(pos, white_chesses, black_chesses, identify1, identify2):
 value = 0
 for i in range(1,9):
 # *1111_ 活四
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 5, white_chesses, black_chesses) == 0:
 value += 40000
 # *11112 死四1
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 5, white_chesses, black_chesses) == identify2:
 value += 30000
 # 1*111 死四2
 if get_point(pos, i, -1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1:
 value += 30000
 # 11*11 死四3
 if get_point(pos, i, -2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, -1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1:
 value += 30000
 # *111_ 活三1
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == 0:
 value += 20000
 # *1_11_ 活三2
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 5, white_chesses, black_chesses) == 0:
 value += 20000
 # *1112 死三1
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == identify2:
 value += 15000
 # _1_112 死三2
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 5, white_chesses, black_chesses) == identify2:
 value += 15000
 # _11_12 死三3
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 5, white_chesses, black_chesses) == identify2:
 value += 15000
 # 1__11 死三4
 if get_point(pos, i, -1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 1, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1:
 value += 15000
 # 1_1_1 死三5
 if get_point(pos, i, -1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1:
 value += 15000
 # 2_111_2 死三6
 if get_point(pos, i, -1, white_chesses, black_chesses) == identify2 and \
 get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 5, white_chesses, black_chesses) == identify2:
 value += 15000
 # __11__ 活二1
 if get_point(pos, i, -1, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == 0:
 value += 1000
 # _1_1_ 活二2
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 4, white_chesses, black_chesses) == 0:
 value += 1000
 # *1__
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == 0 and \
 get_point(pos, i, 3, white_chesses, black_chesses) == 0:
 value += 30
 # *1_
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1 and \
 get_point(pos, i, 2, white_chesses, black_chesses) == 0:
 value += 20
 # *1
 if get_point(pos, i, 1, white_chesses, black_chesses) == identify1:
 value += 10
 return value

电脑选择落子位置时，要判断是进攻还是防守，需要两次遍历棋盘，获取进攻时的最大价值和防守的最大价值，主要代码如下：


# 电脑选取落子的位置
def ai(white_chesses, black_chesses, chesses):
 value = max1 = max2 = 0
 pos1 = pos2 = ()
 # 进攻时
 for i in range(0,15):
 row = 28 + i * 40
 for j in range(0,15):
 col = 28 + j * 40
 pos = (row,col)
 if is_empty(pos, chesses):
 continue
 value = point_value(pos, white_chesses, black_chesses, 1, 2)
 if value > max1:
 max1 = value
 pos1 = (row,col)
 
 # 防守时
 for i in range(0,15):
 for j in range(0,15):
 row = 28 + i * 40
 col = 28 + j * 40
 if is_empty((row,col), chesses):
 continue
 value = point_value((row,col), white_chesses, black_chesses, 2, 1)
 if value > max2:
 max2 = value
 pos2 = (row,col)
 if max1 > max2:
 return pos1
 else:
 return pos2

3.游戏截图