aboutsummaryrefslogtreecommitdiff
path: root/engines/adl/hires1.cpp
blob: 217a9013ba7fa227a14fed4987e08594a96ae714 (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
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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
/* 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.
 *
 */

#include "common/system.h"
#include "common/debug.h"
#include "common/error.h"
#include "common/file.h"
#include "common/stream.h"
#include "common/ptr.h"

#include "adl/adl.h"
#include "adl/graphics.h"
#include "adl/display.h"

namespace Adl {

#define IDS_HR1_EXE_0    "AUTO LOAD OBJ"
#define IDS_HR1_EXE_1    "ADVENTURE"
#define IDS_HR1_LOADER   "MYSTERY.HELLO"
#define IDS_HR1_MESSAGES "MESSAGES"

#define IDI_HR1_NUM_ROOMS         41
#define IDI_HR1_NUM_PICS          97
#define IDI_HR1_NUM_VARS          20
#define IDI_HR1_NUM_ITEM_OFFSETS  21
#define IDI_HR1_NUM_MESSAGES     168

// Messages used outside of scripts
#define IDI_HR1_MSG_CANT_GO_THERE      137
#define IDI_HR1_MSG_DONT_UNDERSTAND     37
#define IDI_HR1_MSG_ITEM_DOESNT_MOVE   151
#define IDI_HR1_MSG_ITEM_NOT_HERE      152
#define IDI_HR1_MSG_THANKS_FOR_PLAYING 140
#define IDI_HR1_MSG_DONT_HAVE_IT       127
#define IDI_HR1_MSG_GETTING_DARK         7

#define IDI_HR1_OFS_STR_ENTER_COMMAND   0x5bbc
#define IDI_HR1_OFS_STR_VERB_ERROR      0x5b4f
#define IDI_HR1_OFS_STR_NOUN_ERROR      0x5b8e
#define IDI_HR1_OFS_STR_PLAY_AGAIN      0x5f1e
#define IDI_HR1_OFS_STR_CANT_GO_THERE   0x6c0a
#define IDI_HR1_OFS_STR_DONT_HAVE_IT    0x6c31
#define IDI_HR1_OFS_STR_DONT_UNDERSTAND 0x6c51
#define IDI_HR1_OFS_STR_GETTING_DARK    0x6c7c
#define IDI_HR1_OFS_STR_PRESS_RETURN    0x5f68
#define IDI_HR1_OFS_STR_LINE_FEEDS      0x59d4

#define IDI_HR1_OFS_PD_TEXT_0    0x005d
#define IDI_HR1_OFS_PD_TEXT_1    0x012b
#define IDI_HR1_OFS_PD_TEXT_2    0x016d
#define IDI_HR1_OFS_PD_TEXT_3    0x0259

#define IDI_HR1_OFS_INTRO_TEXT   0x0066
#define IDI_HR1_OFS_GAME_OR_HELP 0x000f

#define IDI_HR1_OFS_LOGO_0       0x1003
#define IDI_HR1_OFS_LOGO_1       0x1800

#define IDI_HR1_OFS_ITEMS        0x0100
#define IDI_HR1_OFS_ROOMS        0x050a
#define IDI_HR1_OFS_PICS         0x4b03
#define IDI_HR1_OFS_CMDS_0       0x3c00
#define IDI_HR1_OFS_CMDS_1       0x3d00
#define IDI_HR1_OFS_MSGS         0x4d00

#define IDI_HR1_OFS_ITEM_OFFSETS 0x68ff
#define IDI_HR1_OFS_CORNERS      0x4f00

#define IDI_HR1_OFS_VERBS        0x3800
#define IDI_HR1_OFS_NOUNS        0x0f00

class HiRes1Engine : public AdlEngine {
public:
	HiRes1Engine(OSystem *syst, const AdlGameDescription *gd) :
			AdlEngine(syst, gd),
			_files(nullptr),
			_messageDelay(true) { }
	~HiRes1Engine() { delete _files; }

private:
	// AdlEngine
	void runIntro() const;
	void init();
	void initGameState();
	void restartGame();
	void printString(const Common::String &str);
	Common::String loadMessage(uint idx) const;
	void printMessage(uint idx);
	void drawItems();
	void drawItem(Item &item, const Common::Point &pos);
	void loadRoom(byte roomNr);
	void showRoom();

	void wordWrap(Common::String &str) const;

	Files *_files;
	Common::File _exe;
	Common::Array<DataBlockPtr> _corners;
	Common::Array<byte> _roomDesc;
	bool _messageDelay;

	struct {
		Common::String cantGoThere;
		Common::String dontHaveIt;
		Common::String dontUnderstand;
		Common::String gettingDark;
	} _gameStrings;
};

void HiRes1Engine::runIntro() const {
	StreamPtr stream(_files->createReadStream(IDS_HR1_EXE_0));

	stream->seek(IDI_HR1_OFS_LOGO_0);
	_display->setMode(DISPLAY_MODE_HIRES);
	_display->loadFrameBuffer(*stream);
	_display->updateHiResScreen();
	delay(4000);

	if (shouldQuit())
		return;

	_display->setMode(DISPLAY_MODE_TEXT);

	StreamPtr basic(_files->createReadStream(IDS_HR1_LOADER));
	Common::String str;

	str = readStringAt(*basic, IDI_HR1_OFS_PD_TEXT_0, '"');
	_display->printAsciiString(str + '\r');

	str = readStringAt(*basic, IDI_HR1_OFS_PD_TEXT_1, '"');
	_display->printAsciiString(str + "\r\r");

	str = readStringAt(*basic, IDI_HR1_OFS_PD_TEXT_2, '"');
	_display->printAsciiString(str + "\r\r");

	str = readStringAt(*basic, IDI_HR1_OFS_PD_TEXT_3, '"');
	_display->printAsciiString(str + '\r');

	inputKey();
	if (g_engine->shouldQuit())
		return;

	_display->setMode(DISPLAY_MODE_MIXED);

	str = readStringAt(*stream, IDI_HR1_OFS_GAME_OR_HELP);

	bool instructions = false;

	while (1) {
		_display->printString(str);
		Common::String s = inputString();

		if (g_engine->shouldQuit())
			break;

		if (s.empty())
			continue;

		if (s[0] == APPLECHAR('I')) {
			instructions = true;
			break;
		} else if (s[0] == APPLECHAR('G')) {
			break;
		}
	};

	if (instructions) {
		_display->setMode(DISPLAY_MODE_TEXT);
		stream->seek(IDI_HR1_OFS_INTRO_TEXT);

		const uint pages[] = { 6, 6, 4, 5, 8, 7, 0 };

		uint page = 0;
		while (pages[page] != 0) {
			_display->home();

			uint count = pages[page++];
			for (uint i = 0; i < count; ++i) {
				str = readString(*stream);
				_display->printString(str);
				stream->seek(3, SEEK_CUR);
			}

			inputString();

			if (g_engine->shouldQuit())
				return;

			stream->seek(6, SEEK_CUR);
		}
	}

	_display->printAsciiString("\r");

	_display->setMode(DISPLAY_MODE_MIXED);

	// Title screen shown during loading
	stream.reset(_files->createReadStream(IDS_HR1_EXE_1));
	stream->seek(IDI_HR1_OFS_LOGO_1);
	_display->loadFrameBuffer(*stream);
	_display->updateHiResScreen();
	delay(2000);
}

void HiRes1Engine::init() {
	if (Common::File::exists("MYSTHOUS.DSK")) {
		_files = new Files_DOS33();
		if (!static_cast<Files_DOS33 *>(_files)->open("MYSTHOUS.DSK"))
			error("Failed to open MYSTHOUS.DSK");
	} else
		_files = new Files_Plain();

	_graphics = new Graphics_v1(*_display);

	StreamPtr stream(_files->createReadStream(IDS_HR1_EXE_1));

	// Some messages have overrides inside the executable
	_gameStrings.cantGoThere = readStringAt(*stream, IDI_HR1_OFS_STR_CANT_GO_THERE);
	_gameStrings.dontHaveIt = readStringAt(*stream, IDI_HR1_OFS_STR_DONT_HAVE_IT);
	_gameStrings.dontUnderstand = readStringAt(*stream, IDI_HR1_OFS_STR_DONT_UNDERSTAND);
	_gameStrings.gettingDark = readStringAt(*stream, IDI_HR1_OFS_STR_GETTING_DARK);

	// Load other strings from executable
	_strings.enterCommand = readStringAt(*stream, IDI_HR1_OFS_STR_ENTER_COMMAND);
	_strings.verbError = readStringAt(*stream, IDI_HR1_OFS_STR_VERB_ERROR);
	_strings.nounError = readStringAt(*stream, IDI_HR1_OFS_STR_NOUN_ERROR);
	_strings.playAgain = readStringAt(*stream, IDI_HR1_OFS_STR_PLAY_AGAIN);
	_strings.pressReturn = readStringAt(*stream, IDI_HR1_OFS_STR_PRESS_RETURN);
	_strings.lineFeeds = readStringAt(*stream, IDI_HR1_OFS_STR_LINE_FEEDS);

	// Set message IDs
	_messageIds.cantGoThere = IDI_HR1_MSG_CANT_GO_THERE;
	_messageIds.dontUnderstand = IDI_HR1_MSG_DONT_UNDERSTAND;
	_messageIds.itemDoesntMove = IDI_HR1_MSG_ITEM_DOESNT_MOVE;
	_messageIds.itemNotHere = IDI_HR1_MSG_ITEM_NOT_HERE;
	_messageIds.thanksForPlaying = IDI_HR1_MSG_THANKS_FOR_PLAYING;

	// Load message offsets
	stream->seek(IDI_HR1_OFS_MSGS);
	for (uint i = 0; i < IDI_HR1_NUM_MESSAGES; ++i)
		_messages.push_back(_files->getDataBlock(IDS_HR1_MESSAGES, stream->readUint16LE()));

	// Load picture data from executable
	stream->seek(IDI_HR1_OFS_PICS);
	for (uint i = 1; i <= IDI_HR1_NUM_PICS; ++i) {
		byte block = stream->readByte();
		Common::String name = Common::String::format("BLOCK%i", block);
		uint16 offset = stream->readUint16LE();
		_pictures[i] = _files->getDataBlock(name, offset);
	}

	// Load commands from executable
	stream->seek(IDI_HR1_OFS_CMDS_1);
	readCommands(*stream, _roomCommands);

	stream->seek(IDI_HR1_OFS_CMDS_0);
	readCommands(*stream, _globalCommands);

	// Load dropped item offsets
	stream->seek(IDI_HR1_OFS_ITEM_OFFSETS);
	loadDroppedItemOffsets(*stream, IDI_HR1_NUM_ITEM_OFFSETS);

	// Load right-angle line art
	stream->seek(IDI_HR1_OFS_CORNERS);
	uint16 cornersCount = stream->readUint16LE();
	for (uint i = 0; i < cornersCount; ++i)
		_corners.push_back(_files->getDataBlock(IDS_HR1_EXE_1, IDI_HR1_OFS_CORNERS + stream->readUint16LE()));

	if (stream->eos() || stream->err())
		error("Failed to read game data from '" IDS_HR1_EXE_1 "'");

	stream->seek(IDI_HR1_OFS_VERBS);
	loadWords(*stream, _verbs, _priVerbs);

	stream->seek(IDI_HR1_OFS_NOUNS);
	loadWords(*stream, _nouns, _priNouns);
}

void HiRes1Engine::initGameState() {
	_state.vars.resize(IDI_HR1_NUM_VARS);

	StreamPtr stream(_files->createReadStream(IDS_HR1_EXE_1));

	// Load room data from executable
	_roomDesc.clear();
	stream->seek(IDI_HR1_OFS_ROOMS);
	for (uint i = 0; i < IDI_HR1_NUM_ROOMS; ++i) {
		Room room;
		stream->readByte();
		_roomDesc.push_back(stream->readByte());
		for (uint j = 0; j < 6; ++j)
			room.connections[j] = stream->readByte();
		room.picture = stream->readByte();
		room.curPicture = stream->readByte();
		_state.rooms.push_back(room);
	}

	// Load item data from executable
	stream->seek(IDI_HR1_OFS_ITEMS);
	byte id;
	while ((id = stream->readByte()) != 0xff) {
		Item item = Item();
		item.id = id;
		item.noun = stream->readByte();
		item.room = stream->readByte();
		item.picture = stream->readByte();
		item.isLineArt = stream->readByte();
		item.position.x = stream->readByte();
		item.position.y = stream->readByte();
		item.state = stream->readByte();
		item.description = stream->readByte();

		stream->readByte();

		byte size = stream->readByte();

		for (uint i = 0; i < size; ++i)
			item.roomPictures.push_back(stream->readByte());

		_state.items.push_back(item);
	}
}

void HiRes1Engine::restartGame() {
	_display->printString(_strings.pressReturn);
	initState();
	_display->printAsciiString(_strings.lineFeeds);
}

void HiRes1Engine::printString(const Common::String &str) {
	Common::String wrap = str;
	wordWrap(wrap);
	_display->printString(wrap);

	if (_messageDelay)
		delay(14 * 166018 / 1000);
}

Common::String HiRes1Engine::loadMessage(uint idx) const {
	StreamPtr stream(_messages[idx]->createReadStream());
	return readString(*stream, APPLECHAR('\r')) + APPLECHAR('\r');
}

void HiRes1Engine::printMessage(uint idx) {
	// Messages with hardcoded overrides don't delay after printing.
	// It's unclear if this is a bug or not. In some cases the result
	// is that these strings will scroll past the four-line text window
	// before the user gets a chance to read them.
	// NOTE: later games seem to wait for a key when the text window
	// overflows and don't use delays. It might be better to use
	// that system for this game as well.
	switch (idx) {
	case IDI_HR1_MSG_CANT_GO_THERE:
		_display->printString(_gameStrings.cantGoThere);
		return;
	case IDI_HR1_MSG_DONT_HAVE_IT:
		_display->printString(_gameStrings.dontHaveIt);
		return;
	case IDI_HR1_MSG_DONT_UNDERSTAND:
		_display->printString(_gameStrings.dontUnderstand);
		return;
	case IDI_HR1_MSG_GETTING_DARK:
		_display->printString(_gameStrings.gettingDark);
		return;
	default:
		printString(loadMessage(idx));
	}
}

void HiRes1Engine::drawItems() {
	Common::List<Item>::iterator item;

	uint dropped = 0;

	for (item = _state.items.begin(); item != _state.items.end(); ++item) {
		// Skip items not in this room
		if (item->room != _state.room)
			continue;

		if (item->state == IDI_ITEM_DROPPED) {
			// Draw dropped item if in normal view
			if (getCurRoom().picture == getCurRoom().curPicture)
				drawItem(*item, _itemOffsets[dropped++]);
		} else {
			// Draw fixed item if current view is in the pic list
			Common::Array<byte>::const_iterator pic;

			for (pic = item->roomPictures.begin(); pic != item->roomPictures.end(); ++pic) {
				if (*pic == getCurRoom().curPicture) {
					drawItem(*item, item->position);
					break;
				}
			}
		}
	}
}

void HiRes1Engine::drawItem(Item &item, const Common::Point &pos) {
	if (item.isLineArt) {
		StreamPtr stream(_corners[item.picture - 1]->createReadStream());
		static_cast<Graphics_v1 *>(_graphics)->drawCorners(*stream, pos);
	} else
		drawPic(item.picture, pos);
}

void HiRes1Engine::loadRoom(byte roomNr) {
	_roomData.description = loadMessage(_roomDesc[_state.room - 1]);
}

void HiRes1Engine::showRoom() {
	_state.curPicture = getCurRoom().curPicture;
	clearScreen();
	loadRoom(_state.room);

	if (!_state.isDark) {
		drawPic(getCurRoom().curPicture);
		drawItems();
	}

	_display->updateHiResScreen();
	_messageDelay = false;
	printString(_roomData.description);
	_messageDelay = true;
}

void HiRes1Engine::wordWrap(Common::String &str) const {
	uint end = 39;

	while (1) {
		if (str.size() <= end)
			return;

		while (str[end] != APPLECHAR(' '))
			--end;

		str.setChar(APPLECHAR('\r'), end);
		end += 40;
	}
}

Engine *HiRes1Engine_create(OSystem *syst, const AdlGameDescription *gd) {
	return new HiRes1Engine(syst, gd);
}

} // End of namespace Adl