回答編集履歴
1
編集
test
CHANGED
|
@@ -3,3 +3,95 @@
|
|
|
3
3
|
|
|
4
4
|
|
|
5
5
|
[ボードゲームの思考アルゴリズムの入門](http://alcuin.hatenablog.com/entry/2013/12/30/154841)
|
|
6
|
+
|
|
7
|
+
|
|
8
|
+
|
|
9
|
+
|
|
10
|
+
|
|
11
|
+
再帰関数として実装してやるのが一般的です。
|
|
12
|
+
|
|
13
|
+
あくまで一例です。色々な例外処理は抜けていますし省略も多いです。そこは自分で考えてください。
|
|
14
|
+
|
|
15
|
+
|
|
16
|
+
|
|
17
|
+
```python
|
|
18
|
+
|
|
19
|
+
def min_search(board,depth,target):
|
|
20
|
+
|
|
21
|
+
moves = generate_moves(board)
|
|
22
|
+
|
|
23
|
+
min_move = 1000000
|
|
24
|
+
|
|
25
|
+
if depth != target:
|
|
26
|
+
|
|
27
|
+
for move in moves:
|
|
28
|
+
|
|
29
|
+
value = max_search(update(move),depth+1,target)
|
|
30
|
+
|
|
31
|
+
if value < min_move:
|
|
32
|
+
|
|
33
|
+
min_move = value
|
|
34
|
+
|
|
35
|
+
else:
|
|
36
|
+
|
|
37
|
+
for move in moves:
|
|
38
|
+
|
|
39
|
+
value = evaluate_move(update(move))
|
|
40
|
+
|
|
41
|
+
if value < min_move:
|
|
42
|
+
|
|
43
|
+
min_move = value
|
|
44
|
+
|
|
45
|
+
return min_move
|
|
46
|
+
|
|
47
|
+
|
|
48
|
+
|
|
49
|
+
def max_search(board,depth,target):
|
|
50
|
+
|
|
51
|
+
moves = generate_moves(board)
|
|
52
|
+
|
|
53
|
+
max_move = -1000000
|
|
54
|
+
|
|
55
|
+
best_move = moves[0]
|
|
56
|
+
|
|
57
|
+
if depth != target:
|
|
58
|
+
|
|
59
|
+
moves = generate_moves(board)
|
|
60
|
+
|
|
61
|
+
for move in moves:
|
|
62
|
+
|
|
63
|
+
value = min_search(update(move),depth+1,target)
|
|
64
|
+
|
|
65
|
+
if value > max_move:
|
|
66
|
+
|
|
67
|
+
max_move = value
|
|
68
|
+
|
|
69
|
+
best_move = move
|
|
70
|
+
|
|
71
|
+
else:
|
|
72
|
+
|
|
73
|
+
for move in moves:
|
|
74
|
+
|
|
75
|
+
value = evaluate_move(update(move))
|
|
76
|
+
|
|
77
|
+
if value > max_move:
|
|
78
|
+
|
|
79
|
+
max_move = value
|
|
80
|
+
|
|
81
|
+
best_move = move
|
|
82
|
+
|
|
83
|
+
return best_move if depth == 1 else max_move
|
|
84
|
+
|
|
85
|
+
|
|
86
|
+
|
|
87
|
+
def min_max(target):
|
|
88
|
+
|
|
89
|
+
return max_search(board,1,target)
|
|
90
|
+
|
|
91
|
+
|
|
92
|
+
|
|
93
|
+
if __name__ == '__main__':
|
|
94
|
+
|
|
95
|
+
best_move = min_max(5)#５手探索
|
|
96
|
+
|
|
97
|
+
```
|