blob: 82021378b05df3621fb47b1e560b77983ce1bf68 (
plain)
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
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2006 The ScummVM project
*
* Copyright (C) 1999-2003 Sarien Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/stdafx.h"
#include "agi/agi.h"
namespace Agi {
int getflag(int n) {
uint8 *set = (uint8 *) &game.flags;
set += n >> 3;
return (*set & (1 << (n & 0x07))) != 0;
}
void setflag(int n, int v) {
uint8 *set = (uint8 *) &game.flags;
set += n >> 3;
if (v)
*set |= 1 << (n & 0x07); /* set bit */
else
*set &= ~(1 << (n & 0x07)); /* clear bit */
}
void flipflag(int n) {
uint8 *set = (uint8 *) & game.flags;
set += n >> 3;
*set ^= 1 << (n & 0x07); /* flip bit */
}
void setvar(int var, int val) {
game.vars[var] = val;
}
int getvar(int var) {
return game.vars[var];
}
void decrypt(uint8 *mem, int len) {
const uint8 *key;
int i;
key = opt.agds ? (const uint8 *)CRYPT_KEY_AGDS : (const uint8 *)CRYPT_KEY_SIERRA;
for (i = 0; i < len; i++)
*(mem + i) ^= *(key + (i % 11));
}
} // End of namespace Agi
|
