1 /* ScummVM - Graphic Adventure Engine
2 *
3 * ScummVM is the legal property of its developers, whose names
4 * are too numerous to list here. Please refer to the COPYRIGHT
5 * file distributed with this source distribution.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include "bladerunner/game_flags.h"
24
25 #include "bladerunner/savefile.h"
26
27 #include "common/debug.h"
28
29 namespace BladeRunner {
30
GameFlags()31 GameFlags::GameFlags()
32 : _flags(nullptr), _flagCount(0) {
33 }
34
~GameFlags()35 GameFlags::~GameFlags() {
36 delete[] _flags;
37 }
38
clear()39 void GameFlags::clear() {
40 for (int i = 0; i <= _flagCount; ++i) {
41 reset(i);
42 }
43 }
44
setFlagCount(int count)45 void GameFlags::setFlagCount(int count) {
46 assert(count > 0);
47
48 _flagCount = count;
49 _flags = new uint32[count / 32 + 1]();
50
51 clear();
52 }
53
set(int flag)54 void GameFlags::set(int flag) {
55 assert(flag >= 0 && flag <= _flagCount);
56
57 _flags[flag / 32] |= (1 << (flag % 32));
58 }
59
reset(int flag)60 void GameFlags::reset(int flag) {
61 assert(flag >= 0 && flag <= _flagCount);
62
63 _flags[flag / 32] &= ~(1 << (flag % 32));
64 }
65
query(int flag) const66 bool GameFlags::query(int flag) const {
67 //debug("GameFlags::query(%d): %d", flag, !!(flags[flag / 32] & (1 << (flag % 32))));
68 assert(flag >= 0 && flag <= _flagCount);
69
70 return !!(_flags[flag / 32] & (1 << (flag % 32)));
71 }
72
save(SaveFileWriteStream & f)73 void GameFlags::save(SaveFileWriteStream &f) {
74 for (int i = 0; i != _flagCount / 32 + 1; ++i) {
75 f.writeUint32LE(_flags[i]);
76 }
77 }
78
load(SaveFileReadStream & f)79 void GameFlags::load(SaveFileReadStream &f) {
80 for (int i = 0; i != _flagCount / 32 + 1; ++i) {
81 _flags[i] = f.readUint32LE();
82 }
83 }
84
85 } // End of namespace BladeRunner
86