aboutsummaryrefslogtreecommitdiff
path: root/engines/lure/room.cpp
blob: f0da874987abd410ad54fd0d7e36b143d82e6789 (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
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
/* ScummVM - Scumm Interpreter
 * Copyright (C) 2005-2006 The ScummVM project
 *
 * 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 "lure/room.h"
#include "lure/luredefs.h"
#include "lure/res.h"
#include "lure/screen.h"
#include "lure/events.h"
#include "lure/strings.h"
#include "lure/scripts.h"

namespace Lure {

static Room *int_room;

RoomLayer::RoomLayer(uint16 screenId, bool backgroundLayer): 
		Surface(FULL_SCREEN_WIDTH, FULL_SCREEN_HEIGHT) {
	loadScreen(screenId);	
	byte *screenData = data().data();
	int cellY;

	// Reset all the cells to false
	for (cellY = 0; cellY < FULL_VERT_RECTS; ++cellY) 
		for (int cellX = 0; cellX < FULL_HORIZ_RECTS; ++cellX) 
			_cells[cellY][cellX] = false;

	// Loop through each cell of the screen
	for (cellY = 0; cellY < NUM_VERT_RECTS; ++cellY) {
		for (int cellX = 0; cellX < NUM_HORIZ_RECTS; ++cellX) {
			bool hasPixels = false;

			if (backgroundLayer) {
				hasPixels = true;
			} else {
				// Check the cell
				for (int yP = 0; yP < RECT_SIZE; ++yP) {
					if (hasPixels) break;
					byte *linePos = screenData + (cellY * RECT_SIZE + yP + 8) 
						* FULL_SCREEN_WIDTH + (cellX * RECT_SIZE);

					for (int xP = 0; xP < RECT_SIZE; ++xP) {
						hasPixels = *linePos++ != 0;
						if (hasPixels) break;
					}
				}
			}

			_cells[cellY + NUM_EDGE_RECTS][cellX + NUM_EDGE_RECTS] = hasPixels;
		}
	}
}

/*--------------------------------------------------------------------------*/

Room::Room(): _screen(Screen::getReference()) {
	int_room = this;

	_roomData = NULL;
	_talkDialog = NULL;
	_hotspotId = 0;
	_hotspotName[0] = '\0';
	_statusLine[0] = '\0';
	for (int ctr = 0; ctr < MAX_NUM_LAYERS; ++ctr) _layers[ctr] = NULL;
	_numLayers = 0;
	_showInfo = false;
	_isExit = false;
	_destRoomNumber = 0;
	_cursorState = CS_NONE;

//****DEBUG****
	memset(tempLayer, 0, DECODED_PATHS_WIDTH * DECODED_PATHS_HEIGHT * 2);
}

Room::~Room() {
	for (int layerNum = 0; layerNum < _numLayers; ++layerNum)
		if (_layers[layerNum])
			delete _layers[layerNum];

	if (_talkDialog) delete _talkDialog;
	int_room = NULL;
}

Room &Room::getReference() {
	return *int_room;
}

// leaveRoom
// Handles leaving the current room

void Room::leaveRoom() {
	Resources &r = Resources::getReference();

	// Deallocate graphical layers from the room
	for (int layerNum = 0; layerNum < _numLayers; ++layerNum)
		if (_layers[layerNum]) {
			delete _layers[layerNum];
			_layers[layerNum] = NULL;
		}

	// Scan through the hotspot list and remove any uneeded entries 

	HotspotList &list = r.activeHotspots();
	HotspotList::iterator i = list.begin();
	while (i != list.end()) {
		Hotspot *h = i.operator*();
		if (!h->persistant()) {
			i = list.erase(i);
		} else {
			++i;
		}
	}
}

void Room::loadRoomHotspots() {
	Resources &r = Resources::getReference();
	HotspotDataList &list = r.hotspotData();

	HotspotDataList::iterator i;
	for (i = list.begin(); i != list.end(); ++i) {
		HotspotData *rec = *i;

		if ((rec->hotspotId < 0x7530) && (rec->roomNumber == _roomNumber) && 
			(rec->layer != 0))
			r.activateHotspot(rec->hotspotId);
	}
}

void Room::checkRoomHotspots() {
	uint16 rangeStart[4] = {0x408, 0x3e8, 0x7530, 0x2710};
	uint16 rangeEnd[4] = {0x270f, 0x407, 0xffff, 0x752f};

	Mouse &m = Mouse::getReference();
	Resources &res = Resources::getReference();
	HotspotDataList &list = res.hotspotData();
	HotspotData *entry = NULL;
	int16 currentX = m.x();
	int16 currentY = m.y();
	HotspotDataList::iterator i;

	// Loop for each range of hotspot Ids
	for (int ctr = 0; ctr < 4; ++ctr) {
		for (i = list.begin(); i != list.end(); ++i) {
			entry = *i;
			if ((entry->hotspotId < rangeStart[ctr]) || (entry->hotspotId > rangeEnd[ctr]))
				// Hotspot outside range, so skip it
				continue;

			bool skipFlag = (entry->roomNumber != _roomNumber);
			if (!skipFlag) {
				skipFlag = (((entry->flags & HOTSPOTFLAG_FOUND) == 0) && 
							((entry->flags & HOTSPOTFLAG_SKIP) != 0)) ||
						    ((entry->flags & HOTSPOTFLAG_20) != 0);
			}

			if ((!skipFlag) && (entry->hotspotId < 0x409))
				// For character hotspots, validate they're in clipping range
				skipFlag = !res.checkHotspotExtent(entry);
			
			if (!skipFlag && (entry->hotspotId >= 0x2710) && (entry->hotspotId <= 0x27ff)) {
				RoomExitJoinData *rec = res.getExitJoin(entry->hotspotId);
				if ((rec) && (!rec->blocked))
					// Hotspot is over a room exit, and it's not blocked, so don't 
					// register it as an active hotspot
					skipFlag = true;
			}

			if (!skipFlag) {
				// Check for a hotspot override
				HotspotOverrideData *hsEntry = res.getHotspotOverride(entry->hotspotId);

				if (hsEntry) {
					// Check whether cursor is in override hotspot area
					if ((currentX >= hsEntry->xs) && (currentX <= hsEntry->xe) &&
						(currentY >= hsEntry->ys) && (currentY <= hsEntry->ye))
						// Found to be in hotspot entry
						break;
				} else {
					// Check whether cursor is in default hospot area
					if ((currentX >= entry->startX) && (currentY >= entry->startY) &&
						(currentX < entry->startX + entry->widthCopy) && 
						(currentY < entry->startY + entry->height)) 
						// Found hotspot entry
						break;
				}
			}
		}

		if (i != list.end()) 
			break;
	}

	if (i == list.end()) {
		_hotspotId = 0;
		_hotspotNameId = 0;
		_hotspot = NULL;
		_destRoomNumber = 0;
	} else {
		_hotspotNameId = entry->nameId;
		_hotspot = entry;
		_hotspotId = entry->hotspotId;
		_isExit = false;
		entry->flags |= HOTSPOTFLAG_FOUND;
	}
}

uint8 Room::checkRoomExits() {
	Mouse &m = Mouse::getReference();
	Resources &res = Resources::getReference();
	_destRoomNumber = 0;

	RoomExitHotspotList &exits = _roomData->exitHotspots;
	if (exits.empty()) return CURSOR_ARROW;
	RoomExitJoinData *join;
	bool skipFlag;

	RoomExitHotspotList::iterator i;
	for (i = exits.begin(); i != exits.end(); ++i) {
		RoomExitHotspotData *rec = *i;
		skipFlag = false;

		if (rec->hotspotId != 0) {
			join = res.getExitJoin(rec->hotspotId);
			if ((join) && (join->blocked != 0))
				skipFlag = true;
		}

		if (!skipFlag && (m.x() >= rec->xs) && (m.x() <= rec->xe) &&
			(m.y() >= rec->ys) && (m.y() <= rec->ye)) {
			// Cursor is within exit area
			uint8 cursorNum = rec->cursorNum;
			_destRoomNumber = rec->destRoomNumber;

			// If it's a hotspotted exit, change arrow to the + arrow
			if (rec->hotspotId != 0) {
				_hotspotId = rec->hotspotId;
				_hotspot = res.getHotspot(_hotspotId);
				_hotspotNameId = _hotspot->nameId;
				_isExit = true;
				cursorNum += 7;
			}

			return cursorNum;
		}
	}

	// No room exits found
	return CURSOR_ARROW;
}

void Room::flagCoveredCells(Hotspot &h) {
	int16 yStart = (h.y() - MENUBAR_Y_SIZE) / RECT_SIZE;
	int16 yEnd = (h.y() + h.heightCopy() - 1 - MENUBAR_Y_SIZE) / RECT_SIZE;
	int16 numY = yEnd - yStart + 1;
	int16 xStart = h.x() / RECT_SIZE;
	int16 xEnd = (h.x() + h.width() - 1) / RECT_SIZE;
	int16 numX = xEnd - xStart + 1;

	int index = yStart * NUM_HORIZ_RECTS + xStart;

	for (int16 yP = 0; yP < numY; ++yP) {
		for (int16 xP = 0; xP < numX; ++xP) {
			int indexPos = index + xP;
			if ((indexPos < 0) || (indexPos >= NUM_HORIZ_RECTS*NUM_VERT_RECTS)) 
				continue;
			_cells[index+xP] = true;
		}
		index += NUM_HORIZ_RECTS;
	}
}

void Room::addAnimation(Hotspot &h) {
	Surface &s = _screen.screen();
	char buffer[10];
	h.copyTo(&s);

	if (_showInfo) {
		int16 x = h.x();
		int16 y = h.y();
		if ((x >= 0) && (x < FULL_SCREEN_WIDTH) && (y >= 0) && (y < FULL_SCREEN_HEIGHT)) 
			sprintf(buffer, "%xh", h.hotspotId());
		
	}
}

void Room::addLayers(Hotspot &h) {
	int16 hsX = h.x() + (4 * RECT_SIZE);
	int16 hsY = h.y() + (4 * RECT_SIZE) - MENUBAR_Y_SIZE;

	int16 xStart = hsX / RECT_SIZE;
	int16 xEnd = (hsX + h.width()) / RECT_SIZE;
	int16 numX = xEnd - xStart + 1;
	int16 yStart = hsY / RECT_SIZE;
	int16 yEnd = (hsY + h.heightCopy() - 1) / RECT_SIZE;
	int16 numY = yEnd - yStart + 1;
	
	for (int16 xCtr = 0; xCtr < numX; ++xCtr, ++xStart) {
		int16 xs = xStart - 4;
		if (xs < 0) continue;

		// Check foreground layers for an occupied one

		int layerNum = _numLayers - 1;
		while ((layerNum > 0) && !_layers[layerNum]->isOccupied(xStart, yEnd)) 
			--layerNum;
		if (layerNum == 0) continue;

		int16 ye = yEnd - 4;
		for (int16 yCtr = 0; yCtr < numY; ++yCtr, --ye) {
			if (ye < 0) break;
			addCell(xs, ye, layerNum);
		}
	}
}

void Room::addCell(int16 xp, int16 yp, int layerNum) {
	Surface &s = _screen.screen();

	while ((layerNum > 0) && !_layers[layerNum]->isOccupied(xp+4, yp+4))
		--layerNum;
	if (layerNum == 0) return;

	RoomLayer *layer = _layers[layerNum];

	int index = ((yp * RECT_SIZE + 8) * FULL_SCREEN_WIDTH) + (xp * RECT_SIZE);
	byte *srcPos = layer->data().data() + index;
	byte *destPos = s.data().data() + index;

	for (int yCtr = 0; yCtr < RECT_SIZE; ++yCtr) {
		for (int xCtr = 0; xCtr < RECT_SIZE; ++xCtr, ++destPos) {
			byte pixel = *srcPos++;
			if (pixel) *destPos = pixel;
		}

		// Move to start of next cell line
		srcPos += FULL_SCREEN_WIDTH - RECT_SIZE;
		destPos += FULL_SCREEN_WIDTH - RECT_SIZE;
	}
}

void Room::update() {
	Surface &s = _screen.screen();
	Resources &res = Resources::getReference();
	HotspotList &hotspots = res.activeHotspots();
	HotspotList::iterator i;

	memset(_cells, false, NUM_HORIZ_RECTS*NUM_VERT_RECTS);

	// Copy the background to the temporary srceen surface
	_layers[0]->copyTo(&s);

	// Handle first layer (layer 3)
	for (i = hotspots.begin(); i != hotspots.end(); ++i) {
		Hotspot &h = *i.operator*();

		if ((h.roomNumber() == _roomNumber) && h.isActiveAnimation() && (h.layer() == 3)) {
			flagCoveredCells(h);
			addAnimation(h);
			addLayers(h);
		}
	}

	// Handle second layer (layer 1) - do in order of Y axis
	List<Hotspot *> tempList;
	List<Hotspot *>::iterator iTemp;
	for (i = hotspots.begin(); i != hotspots.end(); ++i) {
		Hotspot *h = i.operator*();
		if ((h->layer() != 1) || (h->roomNumber() != _roomNumber) || 
			h->skipFlag() || !h->isActiveAnimation())
			continue;
		int16 endY = h->y() + h->heightCopy();

		for (iTemp = tempList.begin(); iTemp != tempList.end(); ++iTemp) {
			Hotspot *hTemp = iTemp.operator*();
			int16 tempY = hTemp->y() + hTemp->heightCopy();
			if (endY < tempY) break; 
		}
		tempList.insert(iTemp, h);
	}
	for (iTemp = tempList.begin(); iTemp != tempList.end(); ++iTemp) {
		Hotspot &h = *iTemp.operator*();
		flagCoveredCells(h);
		addAnimation(h);
		addLayers(h);
	}

	// Handle third layer (layer 2)
	for (i = hotspots.begin(); i != hotspots.end(); ++i) {
		Hotspot &h = *i.operator*();

		if ((h.roomNumber() == _roomNumber) && h.isActiveAnimation() && (h.layer() == 2)) {
			flagCoveredCells(h);
			addAnimation(h);
		}
	}

	// Loop to add in any remaining cells
	for (int yp = 0; yp < NUM_VERT_RECTS; ++yp) {
		for (int xp = 0; xp < NUM_HORIZ_RECTS; ++xp) {
			if (_cells[yp*NUM_HORIZ_RECTS+xp]) continue;

			int layerNum = _numLayers - 1;
			while ((layerNum > 0) && !_layers[layerNum]->isOccupied(xp+4, yp+4))
				--layerNum;
			if (layerNum != 0) 
				// Add in the cell
				addCell(xp, yp, layerNum);
		}
	}

	// Show any active talk dialog 
	if (_talkDialog)  {
		// Make sure the character is still active and in the viewing room
		Hotspot *talkCharacter = res.getActiveHotspot(res.getTalkingCharacter());
		if ((talkCharacter != NULL) && (talkCharacter->roomNumber() == _roomNumber)) 
			_talkDialog->surface().copyTo(&s, _talkDialogX, _talkDialogY);
	}

	// Handle showing the status line
	if (!*_statusLine) {
		// No current status action being display
		if (_hotspotId != 0) 
			s.writeString(0, 0, _hotspotName, false, DIALOG_TEXT_COLOUR);
	} else {
		// Word wrap (if necessary) the status line and dispaly it
		char *statusLineCopy = strdup(_statusLine);
		char **lines;
		uint8 numLines;
		int16 yPos = 0;
		s.wordWrap(statusLineCopy, s.width(), lines, numLines);
		for (int lineNum = 0; lineNum < numLines; ++lineNum) {
			s.writeString(0, yPos, lines[lineNum], false, DIALOG_WHITE_COLOUR);
			yPos += FONT_HEIGHT;
		}
		Memory::dealloc(lines);
		Memory::dealloc(statusLineCopy);
	}

	// If show information is turned on, show extra debugging information
	if (_showInfo) {
		char buffer[64];

		// Temporary display of pathfinding data
		for (int yctr = 0; yctr < ROOM_PATHS_HEIGHT; ++yctr) {
			for (int xctr = 0; xctr < ROOM_PATHS_WIDTH; ++xctr) {
/*
				if (_roomData->paths.isOccupied(xctr, yctr)) 
					s.fillRect(Rect(xctr * 8, yctr * 8 + 8, xctr * 8 + 7, yctr * 8 + 15), 255);
*/
				uint16 v = tempLayer[(yctr + 1) * DECODED_PATHS_WIDTH + xctr + 1];
				if ((v != 0) && (v < 100)) {
					sprintf(buffer, "%d", v % 10);
					s.writeString(xctr * 8, yctr * 8 + 8, buffer, true);
//				} else if (v == 0xffff) {
				} else if (_roomData->paths.isOccupied(xctr, yctr)) {
					s.fillRect(Rect(xctr * 8, yctr * 8 + 8, xctr * 8 + 7, yctr * 8 + 15), 255);
				}
			}
		}

		Mouse &m = Mouse::getReference();
		sprintf(buffer, "Room %d Pos (%d,%d)", _roomNumber, m.x(), m.y());
		s.writeString(FULL_SCREEN_WIDTH / 2, 0, buffer, false, DIALOG_TEXT_COLOUR);
	}
}

void Room::setRoomNumber(uint16 newRoomNumber, bool showOverlay) {
	Resources &r = Resources::getReference();
	_roomData = r.getRoom(newRoomNumber);
	if (!_roomData)
		error("Tried to change to non-existant room: %d", newRoomNumber);

	_roomNumber = _roomData->roomNumber;
	_descId = _roomData->descId;

	_screen.empty();
	_screen.resetPalette();

	if (_layers[0]) leaveRoom();
	_numLayers = _roomData->numLayers;
	if (showOverlay) ++_numLayers;

	uint16 paletteId = (_roomData->layers[0] & 0xffe0) - 1;
	for (uint8 layerNum = 0; layerNum < _numLayers; ++layerNum) 
		_layers[layerNum] = new RoomLayer(_roomData->layers[layerNum],
			layerNum == 0);

	// Load in the palette, add in the two replacements segments, and then
	// set to the system palette
	Palette p(228, NULL, RGB64);
	Palette tempPalette(paletteId);
	p.copyFrom(&tempPalette);
	r.insertPaletteSubset(p);
	_screen.setPalette(&p);

	// Set the new room number
	r.fieldList().setField(ROOM_NUMBER, newRoomNumber);

	if (_roomData->sequenceOffset != 0xffff)
		Script::execute(_roomData->sequenceOffset);

	loadRoomHotspots();
	checkCursor();
	update();
}

// checkCursor
// Called repeatedly to check if any changes to the cursor are required

void Room::checkCursor() {
	Mouse &mouse = Mouse::getReference();
	Resources &res = Resources::getReference();
	uint16 oldHotspotId = _hotspotId;
	uint16 currentCursor = mouse.getCursorNum();
	uint16 newCursor = currentCursor;
	CurrentAction playerAction = res.getActiveHotspot(PLAYER_ID)->currentActions().action();
	uint16 oldRoomNumber = res.fieldList().getField(OLD_ROOM_NUMBER);

	if ((currentCursor >= CURSOR_TIME_START) && (currentCursor <= CURSOR_TIME_END) &&
		((playerAction == START_WALKING) || (playerAction == PROCESSING_PATH))) {
		// Animate the clock when processing the player path
		++newCursor;
		if (newCursor == CURSOR_CROSS) newCursor = CURSOR_TIME_START;
	} else if (checkInTalkDialog() && (oldRoomNumber == 0)) {
		newCursor = CURSOR_TALK;
	} else if (res.getTalkData()) {
		newCursor = CURSOR_ARROW;
	} else if (_cursorState == CS_BUMPED) {
		newCursor = CURSOR_CAMERA;
	} else if (_cursorState == CS_TALKING) {
		newCursor = CURSOR_ARROW;
	} else if (mouse.y() < MENUBAR_Y_SIZE) {
		// If viewing a room remotely, then don't change to the menu cursor
		if (oldRoomNumber != 0) return;
		
		newCursor = CURSOR_MENUBAR;
	} else if (_cursorState != CS_NONE) {
		// Currently in a special mode
		checkRoomHotspots();
		newCursor = CURSOR_CAMERA;
	} else {
		// Check for a highlighted hotspot
		checkRoomHotspots();
		
		if (_hotspotId != 0) {
			newCursor = CURSOR_CROSS;
		} else {
			newCursor = checkRoomExits();
		}

		if (oldHotspotId != _hotspotId) 
			StringData::getReference().getString(_hotspotNameId, _hotspotName);
	}

	if (mouse.getCursorNum() != newCursor) 
		mouse.setCursorNum(newCursor);
}

void Room::setTalkDialog(uint16 srcCharacterId, uint16 destCharacterId, uint16 usedId, uint16 stringId) {
	debugC(ERROR_DETAILED, kLureDebugAnimations, "Room::setTalkDialog - char=%xh string=%d",
		srcCharacterId, stringId);

	if (_talkDialog) {
		delete _talkDialog;
		_talkDialog = NULL;
	}

	Resources &res = Resources::getReference();
	res.setTalkingCharacter(srcCharacterId);

	if (srcCharacterId == 0)
		return;

	HotspotData *character = res.getHotspot(srcCharacterId);
	if (character->roomNumber != _roomNumber)
		return;

	_talkDialog = new TalkDialog(srcCharacterId, destCharacterId, usedId, stringId);
	_talkDialogX = character->startX + (character->width / 2) - (TALK_DIALOG_WIDTH / 2);

	if (_talkDialogX < 0) _talkDialogX = 0;
	if (_talkDialogX + TALK_DIALOG_WIDTH >= FULL_SCREEN_WIDTH - 10)
		_talkDialogX = FULL_SCREEN_WIDTH - 10 - TALK_DIALOG_WIDTH; 

	_talkDialogY = TALK_DIALOG_Y;
}

// Checks to see if a talk dialog is active, and if so if the mouse is in
// within it

bool Room::checkInTalkDialog() {
	// Make sure there is a talk dialog active
	if (!_talkDialog) return false;

	// Check boundaries
	Mouse &mouse = Mouse::getReference();
	return ((mouse.x() >= _talkDialogX) && (mouse.y() >= _talkDialogY) &&
		(mouse.x() < _talkDialogX + _talkDialog->surface().width()) &&
		(mouse.y() < _talkDialogY + _talkDialog->surface().height()));
}

void Room::saveToStream(Common::WriteStream *stream) {
	stream->writeUint16LE(_roomNumber);
	stream->writeUint16LE(_destRoomNumber);
	stream->writeByte(_showInfo);
	stream->writeUint16LE(_cursorState);
}

void Room::loadFromStream(Common::ReadStream *stream) {
	int roomNum = stream->readUint16LE();
	setRoomNumber(roomNum, false);

	_destRoomNumber = stream->readUint16LE();
	_showInfo = stream->readByte() != 0;
	_cursorState = (CursorState) stream->readUint16LE();
}

} // end of namespace Lure