python小项目之五子棋游戏

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

来源：https://blog.csdn.net/weixin_45342712/article/details/98954371