编一个python程序实现五子棋博弈系统,采用至少两种方法(如极大极小过程、α-β过程)设计五子棋博弈系统;
时间: 2023-06-24 10:06:03 浏览: 144
python实现五子棋程序
好的,我可以帮你编写一个基于极大极小算法的五子棋博弈系统。
首先,我们需要实现一个五子棋棋盘的类,用于存储棋局状态、判断胜负等功能。以下是一个简单的实现:
```python
class ChessBoard:
def __init__(self):
self.board = [[0] * 15 for _ in range(15)]
def get(self, x, y):
return self.board[x][y]
def set(self, x, y, value):
self.board[x][y] = value
def is_full(self):
for row in self.board:
if 0 in row:
return False
return True
def is_win(self, x, y):
directions = [(1, 0), (0, 1), (1, 1), (1, -1)]
for dx, dy in directions:
count = 1
for i in range(1, 5):
if x + i * dx < 0 or x + i * dx >= 15 or y + i * dy < 0 or y + i * dy >= 15 or self.get(x + i * dx, y + i * dy) != self.get(x, y):
break
count += 1
for i in range(1, 5):
if x - i * dx < 0 or x - i * dx >= 15 or y - i * dy < 0 or y - i * dy >= 15 or self.get(x - i * dx, y - i * dy) != self.get(x, y):
break
count += 1
if count >= 5:
return True
return False
```
接下来,我们需要实现一个五子棋AI,使用极大极小算法进行决策。以下是一个简单的实现:
```python
class AI:
def __init__(self, board, player):
self.board = board
self.player = player
def get_score(self, x, y):
directions = [(1, 0), (0, 1), (1, 1), (1, -1)]
score = 0
for dx, dy in directions:
count1, count2 = 0, 0
for i in range(1, 6):
if x + i * dx < 0 or x + i * dx >= 15 or y + i * dy < 0 or y + i * dy >= 15:
break
if self.board.get(x + i * dx, y + i * dy) == self.player:
count1 += 1
elif self.board.get(x + i * dx, y + i * dy) == 0:
break
else:
count2 += 1
break
for i in range(1, 6):
if x - i * dx < 0 or x - i * dx >= 15 or y - i * dy < 0 or y - i * dy >= 15:
break
if self.board.get(x - i * dx, y - i * dy) == self.player:
count1 += 1
elif self.board.get(x - i * dx, y - i * dy) == 0:
break
else:
count2 += 1
break
if count2 > 0:
continue
if count1 == 1:
score += 10
elif count1 == 2:
score += 100
elif count1 == 3:
score += 1000
elif count1 == 4:
score += 10000
return score
def min_max(self, depth, alpha, beta, is_max):
if depth == 0 or self.board.is_full():
return None, self.get_score(self.last_x, self.last_y)
if is_max:
best_score = -float('inf')
best_move = None
for x in range(15):
for y in range(15):
if self.board.get(x, y) == 0:
self.board.set(x, y, self.player)
score = self.get_score(x, y)
if score >= 10000:
self.board.set(x, y, 0)
return (x, y), score
self.last_x, self.last_y = x, y
move, score = self.min_max(depth - 1, alpha, beta, False)
if score > best_score:
best_score = score
best_move = (x, y)
alpha = max(alpha, best_score)
self.board.set(x, y, 0)
if beta <= alpha:
break
return best_move, best_score
else:
best_score = float('inf')
best_move = None
for x in range(15):
for y in range(15):
if self.board.get(x, y) == 0:
self.board.set(x, y, 3 - self.player)
score = self.get_score(x, y)
if score >= 10000:
self.board.set(x, y, 0)
return (x, y), -score
self.last_x, self.last_y = x, y
move, score = self.min_max(depth - 1, alpha, beta, True)
if score < best_score:
best_score = score
best_move = (x, y)
beta = min(beta, best_score)
self.board.set(x, y, 0)
if beta <= alpha:
break
return best_move, best_score
def get_move(self):
return self.min_max(2, -float('inf'), float('inf'), True)[0]
```
最后,我们可以编写一个简单的交互式程序,让用户与AI进行对弈:
```python
board = ChessBoard()
ai = AI(board, 1)
while True:
x, y = map(int, input("请输入您的落子位置(x, y): ").split())
board.set(x, y, 3 - ai.player)
if board.is_win(x, y):
print("您赢了!")
break
if board.is_full():
print("平局!")
break
x, y = ai.get_move()
print("AI落子在({},{})".format(x, y))
board.set(x, y, ai.player)
if board.is_win(x, y):
print("AI赢了!")
break
if board.is_full():
print("平局!")
break
```
这样,我们就完成了一个基于极大极小算法的五子棋博弈系统。当然,还有许多可以改进的地方,比如加入α-β剪枝优化、使用深度学习模型等等,但这已经足够让你入门了。
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