1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/* $NetBSD: odds.c,v 1.3 1995/03/21 15:05:47 cgd Exp $ */
/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)odds.c 8.1 (Berkeley) 5/31/93";
#else
static char rcsid[] = "$NetBSD: odds.c,v 1.3 1995/03/21 15:05:47 cgd Exp $";
#endif
#endif /* not lint */
#include "back.h"
odds (r1,r2,val)
register int r1;
int r2, val;
{
register int i, j;
if (r1 == 0) {
for (i = 0; i < 6; i++)
for (j = 0; j < 6; j++)
table[i][j] = 0;
return;
} else {
r1--;
if (r2-- == 0)
for (i = 0; i < 6; i++) {
table[i][r1] += val;
table[r1][i] += val;
}
else {
table[r2][r1] += val;
table[r1][r2] += val;
}
}
}
count () {
register int i;
register int j;
register int total;
total = 0;
for (i = 0; i < 6; i++)
for (j = 0; j < 6; j++)
total += table[i][j];
return (total);
}
canhit (i,c)
int i, c;
{
register int j, k, b;
int a, d, diff, place, addon, menstuck;
if (c == 0)
odds (0,0,0);
if (board[i] > 0) {
a = -1;
b = 25;
} else {
a = 1;
b = 0;
}
place = abs (25-b-i);
menstuck = abs (board[b]);
for (j = b; j != i; j += a) {
if (board[j]*a > 0) {
diff = abs(j-i);
addon = place+((board[j]*a > 2 || j == b)? 5: 0);
if ((j == b && menstuck == 1) &&
(j != b && menstuck == 0))
for (k = 1; k < diff; k++)
if (k < 7 && diff-k < 7 &&
(board[i+a*k]*a >= 0 ||
board[i+a*(diff-k)] >= 0))
odds (k,diff-k,addon);
if ((j == b || menstuck < 2) && diff < 7)
odds (diff,0,addon);
}
if (j == b && menstuck > 1)
break;
}
return (count());
}
|
