aboutsummaryrefslogtreecommitdiff
path: root/engines/adl/adl_v4.h
blob: 2a5ceb422d6404d3637ce064a2646be17b9df7c4 (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
74
75
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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.
 *
 */

#ifndef ADL_ADL_V4_H
#define ADL_ADL_V4_H

#include "adl/adl_v3.h"

namespace Adl {

// Base track/sector for a region
struct RegionLocation {
	byte track;
	byte sector;
};

// Location of the 7 initial data blocks, relative to RegionLocation
struct RegionInitDataOffset {
	byte track;
	byte sector;
	byte offset;
	byte volume;
};

class AdlEngine_v4 : public AdlEngine_v3 {
public:
	virtual ~AdlEngine_v4();

protected:
	AdlEngine_v4(OSystem *syst, const AdlGameDescription *gd);

	// AdlEngine
	virtual Common::String loadMessage(uint idx) const;
	virtual Common::String getItemDescription(const Item &item) const;

	// AdlEngine_v2
	virtual void adjustDataBlockPtr(byte &track, byte &sector, byte &offset, byte &size) const;

	DiskImage *loadDisk(byte volume) const;
	void insertDisk(byte volume);
	void loadRegionLocations(Common::ReadStream &stream, uint regions);
	void loadRegionInitDataOffsets(Common::ReadStream &stream, uint regions);
	void initRegions(const byte *roomsPerRegion, uint regions);
	void fixupDiskOffset(byte &track, byte &sector) const;
	void loadRegion(byte region);
	void loadItemPicIndex(Common::ReadStream &stream, uint items);

	byte _currentVolume;
	Common::Array<RegionLocation> _regionLocations;
	Common::Array<RegionInitDataOffset> _regionInitDataOffsets;
	Common::SeekableReadStream *_itemPicIndex;
};

} // End of namespace Adl

#endif