aboutsummaryrefslogtreecommitdiff
path: root/engines/queen/walk.cpp
blob: b5c9b97ce088dc7395ab834c365e750e20261392 (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
/* 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/textconsole.h"

#include "queen/walk.h"

#include "queen/bankman.h"
#include "queen/input.h"
#include "queen/logic.h"
#include "queen/graphics.h"
#include "queen/grid.h"
#include "queen/queen.h"

namespace Queen {

const MovePersonData Walk::_moveData[] = {
	{ "COMPY",       -1,  -6,  1,  6,  0,  0,  0,  0, 12, 12, 1, 14 },
	{ "DEINO",       -1,  -8,  1,  8,  0,  0,  0,  0, 11, 11, 1, 10 },
	{ "FAYE",        -1,  -6,  1,  6, 13, 18,  7, 12, 19, 22, 2,  5 },
	{ "GUARDS",      -1,  -6,  1,  6,  0,  0,  0,  0,  7,  7, 2,  5 },
	{ "PRINCESS1",   -1,  -6,  1,  6, 13, 18,  7, 12, 19, 21, 2,  5 },
	{ "PRINCESS2",   -1,  -6,  1,  6, 13, 18,  7, 12, 19, 21, 2,  5 },
	{ "AMGUARD",     -1,  -6,  1,  6, 13, 18,  7, 12, 19, 21, 2,  5 },
	{ "SPARKY",      -1,  -6,  1,  6, 13, 18,  7, 12, 21, 20, 2,  5 },
	{ "LOLA_SHOWER", -1,  -6, 55, 60,  0,  0,  0,  0,  7,  7, 2,  5 },
	{ "LOLA",       -24, -29, 24, 29,  0,  0,  0,  0, 30, 30, 2,  5 },
	{ "BOB",        -15, -20, 15, 20, 21, 26,  0,  0, 27, 29, 2,  5 },
	{ "CHEF",        -1,  -4,  1,  4,  0,  0,  0,  0,  1,  5, 2,  4 },
	{ "HENRY",       -1,  -6,  1,  6,  0,  0,  0,  0,  7,  7, 2,  6 },
	{ "ANDERSON",    -1,  -6,  1,  6,  0,  0,  0,  0,  7,  7, 2,  5 },
	{ "JASPAR",      -4,  -9,  4,  9, 16, 21, 10, 15,  1,  3, 1, 10 },
	{ "PYGMY",       -7, -12,  7, 12,  0,  0,  0,  0, 27, 27, 2,  5 },
	{ "FRANK",        7,  12,  1,  6,  0,  0,  0,  0, 13, 13, 2,  4 },
	{ "WEDGEWOOD",  -20, -25, 20, 25,  0,  0,  0,  0,  1,  1, 1,  5 },
	{ "TMPD",        -1,  -6,  1,  6, 13, 18,  7, 12, 19, 21, 2,  5 },
	{ "IAN",         -1,  -6,  1,  6,  0,  0,  0,  0,  7,  7, 2,  6 },
	{ "*",            0,   0,  0,  0,  0,  0,  0,  0,  0,  0, 0,  0 }
};

Walk::Walk(QueenEngine *vm)
	: _vm(vm) {
}

void Walk::animateJoePrepare() {
	// queen.c l.2748-2788
	uint16 i;
	for (i = 1; i <= _walkDataCount; ++i) {

		WalkData *pwd = &_walkData[i];

		if (pwd->dx < 0) {
			pwd->anim.set(11, 18, DIR_LEFT);
		} else {
			pwd->anim.set(11, 18, DIR_RIGHT);
		}

		int16 k = ABS(pwd->dy);
		int16 ds = pwd->area->scaleDiff();
		if (ds > 0) {
			k *= ((k * ds) / pwd->area->box.yDiff()) / 2;
		}

		if (ABS(pwd->dx) < k) {
			if (pwd->dy < 0) {
				if (ds < 0) {
					pwd->anim.set(19, 24, DIR_FRONT);
				} else {
					pwd->anim.set(25, 30, DIR_BACK);
				}
			} else if (pwd->dy > 0) {
				if (ds < 0) {
					pwd->anim.set(25, 30, DIR_BACK);
				} else {
					pwd->anim.set(19, 24, DIR_FRONT);
				}
			}
		}
	}
}

void Walk::animateJoe() {
	// queen.c l.2789-2835
	uint16 lastDirection = 0;
	uint16 i;
	BobSlot *pbs = _vm->graphics()->bob(0);
	_vm->logic()->joeFacing(_walkData[1].anim.facing);
	_vm->logic()->joeScale(_walkData[1].area->calcScale(pbs->y));
	_vm->logic()->joeFace();
	for (i = 1; i <= _walkDataCount && !_joeInterrupted; ++i) {

		WalkData *pwd = &_walkData[i];

		// area has been turned off, see if we should execute a cutaway
		if (pwd->area->mapNeighbors < 0) {
			// queen.c l.2838-2911
			_vm->logic()->handleSpecialArea(pwd->anim.facing, pwd->areaNum, i);
			_joeMoveBlock = true;
			return;
		}
		if (lastDirection != pwd->anim.facing) {
			pbs->animNormal(pwd->anim.firstFrame, pwd->anim.lastFrame, 1, false, false);
		}

		uint16 moveSpeed = _vm->grid()->findScale(pbs->x, pbs->y) * 6 / 100;
		pbs->move(pbs->x + pwd->dx, pbs->y + pwd->dy, moveSpeed);
		pbs->xflip = (pbs->xdir < 0);
		while (pbs->moving) {
			// adjust Joe's movespeed according to scale
			pbs->scale = pwd->area->calcScale(pbs->y);
			_vm->logic()->joeScale(pbs->scale);
			pbs->scaleWalkSpeed(6);
			_vm->update(true);
			if (_vm->input()->cutawayQuit() || _vm->logic()->joeWalk() == JWM_EXECUTE) {
				stopJoe();
				break;
			}
		}
		lastDirection = pwd->anim.facing;
	}
	_vm->logic()->joeFacing(lastDirection);
}

void Walk::animatePersonPrepare(const MovePersonData *mpd, int direction) {
	// queen.c l.2469-2572
	int i;
	for (i = 1; i <= _walkDataCount; ++i) {

		WalkData *pwd = &_walkData[i];

		if (pwd->dx < 0) {
			pwd->anim.set(mpd->walkLeft1, mpd->walkLeft2, DIR_LEFT);
		} else if (pwd->dx > 0) {
			pwd->anim.set(mpd->walkRight1, mpd->walkRight2, DIR_RIGHT);
		} else {
			if (ABS(mpd->walkLeft1) == ABS(mpd->walkRight1)) {
				pwd->anim.set(mpd->walkRight1, mpd->walkRight2, DIR_RIGHT);
			} else {
				// we have specific moves for this actor, see what direction they were last facing
				if (direction == -3) {
					// previously facing right
					pwd->anim.set(mpd->walkLeft1, mpd->walkLeft2, DIR_LEFT);
				} else {
					// previously facing left
					pwd->anim.set(mpd->walkRight1, mpd->walkRight2, DIR_RIGHT);
				}
			}
		}

		int16 k = ABS(pwd->dy);
		int16 ds = pwd->area->scaleDiff();
		if (ds > 0) {
			k *= ((k * ds) / pwd->area->box.yDiff()) / 2;
		}

		if (ABS(pwd->dx) < k) {
			if (pwd->dy < 0) {
				if (mpd->walkBack1 > 0) {
					pwd->anim.set(mpd->walkBack1, mpd->walkBack2, DIR_BACK);
				} else if (pwd->dx < 0) {
					pwd->anim.set(mpd->walkLeft1, mpd->walkLeft2, DIR_BACK);
				} else {
					pwd->anim.set(mpd->walkRight1, mpd->walkRight2, DIR_BACK);
				}
			} else if (pwd->dy > 0) {
				if (mpd->walkFront1 > 0) {
					pwd->anim.set(mpd->walkFront1, mpd->walkFront2, DIR_FRONT);
				} else if (ABS(mpd->walkLeft1) == ABS(mpd->walkRight1)) {
					if (pwd->dx < 0) {
						pwd->anim.set(mpd->walkLeft1, mpd->walkLeft2, DIR_FRONT);
					} else {
						pwd->anim.set(mpd->walkRight1, mpd->walkRight2, DIR_FRONT);
					}
				} else {
					// we have a special move for left/right, so select that instead!
					if (direction == -3) {
						// previously facing right
						pwd->anim.set(mpd->walkLeft1, mpd->walkLeft2, DIR_FRONT);
					} else {
						// previously facing left
						pwd->anim.set(mpd->walkRight1, mpd->walkRight2, DIR_FRONT);
					}
				}
			}
		}
	}
}

void Walk::animatePerson(const MovePersonData *mpd, uint16 image, uint16 bobNum, uint16 bankNum, int direction) {
	// queen.c l.2572-2651
	BobSlot *pbs = _vm->graphics()->bob(bobNum);

	// check to see which way person should be facing
	if (mpd->walkLeft1 == mpd->walkRight1) {
		pbs->xflip = (direction == -3);
	} else {
		// they have special walk for left and right, so don't flip
		pbs->xflip = false;
	}

	uint16 i;
	for (i = 1; i <= _walkDataCount; ++i) {
		WalkData *pwd = &_walkData[i];

		// unpack necessary frames for bob animation
		uint16 dstFrame = image;
		uint16 srcFrame = ABS(pwd->anim.firstFrame);
		while (srcFrame <= ABS(pwd->anim.lastFrame)) {
			_vm->bankMan()->unpack(srcFrame, dstFrame, bankNum);
			++dstFrame;
			++srcFrame;
		}
		// pass across bobs direction ONLY if walk is a mirror flip!
		if (ABS(mpd->walkLeft1) == ABS(mpd->walkRight1)) {
			pbs->animNormal(image, dstFrame - 1, mpd->animSpeed, false, pbs->xflip);
		} else {
			pbs->animNormal(image, dstFrame - 1, mpd->animSpeed, false, false);
		}

		// move other actors at correct speed relative to scale
		uint16 moveSpeed = _vm->grid()->findScale(pbs->x, pbs->y) * mpd->moveSpeed / 100;
		pbs->move(pbs->x + pwd->dx, pbs->y + pwd->dy, moveSpeed);

		// flip if one set of frames for actor
		if (mpd->walkLeft1 < 0 || ABS(mpd->walkLeft1) == ABS(mpd->walkRight1)) {
			pbs->xflip = pwd->dx < 0;
		}

		while (pbs->moving) {
			_vm->update();
			pbs->scale = pwd->area->calcScale(pbs->y);
			pbs->scaleWalkSpeed(mpd->moveSpeed);
			if (_vm->input()->cutawayQuit()) {
				stopPerson(bobNum);
				break;
			}
		}
	}
}

int16 Walk::moveJoe(int direction, int16 endx, int16 endy, bool inCutaway) {
	_joeInterrupted = false;
	_joeMoveBlock = false;
	int16 can = 0;
	initWalkData();

	uint16 oldx = _vm->graphics()->bob(0)->x;
	uint16 oldy = _vm->graphics()->bob(0)->y;

	_vm->logic()->joeWalk(JWM_MOVE);

	uint16 oldPos = _vm->grid()->findAreaForPos(GS_ROOM, oldx, oldy);
	uint16 newPos = _vm->grid()->findAreaForPos(GS_ROOM, endx, endy);

	debug(9, "Walk::moveJoe(%d, %d, %d, %d, %d) - old = %d, new = %d", direction, oldx, oldy, endx, endy, oldPos, newPos);

	// if in cutaway, allow Joe to walk anywhere
	if (newPos == 0 && inCutaway) {
		incWalkData(oldx, oldy, endx, endy, oldPos);
	} else {
		if (calc(oldPos, newPos, oldx, oldy, endx, endy)) {
			if (_walkDataCount > 0) {
				animateJoePrepare();
				animateJoe();
				if (_joeInterrupted) {
					can = -1;
				}
			}
		} else {
			// path has been blocked, make Joe say so
			_vm->logic()->makeJoeSpeak(4);
			can = -1;
		}
	}

	_vm->graphics()->bob(0)->animating = false;
	if (_joeMoveBlock) {
		can = -2;
		_joeMoveBlock = false;
	} else if (direction > 0) {
		_vm->logic()->joeFacing(direction);
	}
	_vm->logic()->joePrevFacing(_vm->logic()->joeFacing());
	_vm->logic()->joeFace();
	return can;
}

int16 Walk::movePerson(const Person *pp, int16 endx, int16 endy, uint16 curImage, int direction) {
	if (endx == 0 && endy == 0) {
		warning("Walk::movePerson() - endx == 0 && endy == 0");
		return 0;
	}

	int16 can = 0;
	initWalkData();

	uint16 bobNum = pp->actor->bobNum;
	uint16 bankNum = pp->actor->bankNum;

	uint16 oldx = _vm->graphics()->bob(bobNum)->x;
	uint16 oldy = _vm->graphics()->bob(bobNum)->y;

	uint16 oldPos = _vm->grid()->findAreaForPos(GS_ROOM, oldx, oldy);
	uint16 newPos = _vm->grid()->findAreaForPos(GS_ROOM, endx, endy);

	debug(9, "Walk::movePerson(%d, %d, %d, %d, %d) - old = %d, new = %d", direction, oldx, oldy, endx, endy, oldPos, newPos);

	// find MovePersonData associated to Person
	const MovePersonData *mpd = _moveData;
	while (mpd->name[0] != '*') {
		if (scumm_stricmp(mpd->name, pp->name) == 0) {
			break;
		}
		++mpd;
	}

	if (calc(oldPos, newPos, oldx, oldy, endx, endy)) {
		if (_walkDataCount > 0) {
			animatePersonPrepare(mpd, direction);
			animatePerson(mpd, curImage, bobNum, bankNum, direction);
		}
	} else {
		can = -1;
	}

	uint16 standingFrame = 31 + bobNum;

	// make other person face the right direction
	BobSlot *pbs = _vm->graphics()->bob(bobNum);
	pbs->endx = endx;
	pbs->endy = endy;
	pbs->animating = false;
	pbs->scale = _walkData[_walkDataCount].area->calcScale(endy);
	if (_walkData[_walkDataCount].anim.facing == DIR_BACK) {
		_vm->bankMan()->unpack(mpd->backStandingFrame, standingFrame, bankNum);
	} else {
		_vm->bankMan()->unpack(mpd->frontStandingFrame, standingFrame, bankNum);
	}
	uint16 obj = _vm->logic()->objectForPerson(bobNum);
	if (_walkData[_walkDataCount].dx < 0) {
		_vm->logic()->objectData(obj)->image = -3;
		pbs->xflip = true;
	} else {
		_vm->logic()->objectData(obj)->image = -4;
		pbs->xflip = false;
	}
	pbs->frameNum = standingFrame;
	return can;
}

void Walk::stopJoe() {
	BobSlot *pbs = _vm->graphics()->bob(0);
	pbs->moving = false;
	_joeInterrupted = true;
}

void Walk::stopPerson(uint16 bobNum) {
	BobSlot *pbs = _vm->graphics()->bob(bobNum);
	pbs->x = pbs->endx;
	pbs->y = pbs->endy;
	pbs->moving = false;
}

bool Walk::calc(uint16 oldPos, uint16 newPos, int16 oldx, int16 oldy, int16 x, int16 y) {
	// if newPos is outside of an AREA then traverse Y axis until an AREA is found
	if (newPos == 0) {
		newPos = findAreaPosition(&x, &y, true);
	}

	// do the same for oldPos in case Joe somehow sits on the border of an AREA
	// and does not register
	if (oldPos == 0) {
		oldPos = findAreaPosition(&oldx, &oldy, false);
	}

	if (oldPos == newPos) {
		incWalkData(oldx, oldy, x, y, newPos);
		return true;
	} else if (calcPath(oldPos, newPos)) {
		uint16 i;
		int16 px = oldx;
		int16 py = oldy;
		for (i = 2; i <= _areaListCount; ++i) {
			uint16 a1 = _areaList[i - 1];
			uint16 a2 = _areaList[i];
			const Area *pa1 = &_roomArea[a1];
			const Area *pa2 = &_roomArea[a2];
			uint16 x1 = calcC(pa1->box.x1, pa1->box.x2, pa2->box.x1, pa2->box.x2, px);
			uint16 y1 = calcC(pa1->box.y1, pa1->box.y2, pa2->box.y1, pa2->box.y2, py);
			incWalkData(px, py, x1, y1, a1);
			px = x1;
			py = y1;
		}
		incWalkData(px, py, x, y, newPos);
		return true;
	}
	return false;
}

int16 Walk::calcC(int16 c1, int16 c2, int16 c3, int16 c4, int16 lastc) {
	int16 s1 = MAX(c1, c3);
	int16 s2 = MIN(c2, c4);
	int16 c;
	if ((lastc >= s1 && lastc <= s2) || (lastc >= s2 && lastc <= s1)) {
		c = lastc;
	} else {
		c = (s1 + s2) / 2;
	}
	return c;
}

int16 Walk::findAreaPosition(int16 *x, int16 *y, bool recalibrate) {
	// In order to locate the nearest available area, the original algorithm
	// computes the horizontal and vertical distances for each available area.
	// Unlike the original, we also compute the diagonal distance.
	// To get an example of this in action, in the room D1, make Joe walking
	// to the wall at the right of the window (just above the radiator). On the
	// original game, Joe will go to the left door...
	uint16 i;
	uint16 pos = 1;
	uint32 minDist = (uint32)~0;
	const Box *b = &_roomArea[1].box;
	for (i = 1; i <= _roomAreaCount; ++i) {

		b = &_roomArea[i].box;

		uint16 dx1 = ABS(b->x1 - *x);
		uint16 dx2 = ABS(b->x2 - *x);
		uint16 dy1 = ABS(b->y1 - *y);
		uint16 dy2 = ABS(b->y2 - *y);
		uint16 csx = MIN(dx1, dx2);
		uint16 csy = MIN(dy1, dy2);

		bool inX = (*x >= b->x1) && (*x <= b->x2);
		bool inY = (*y >= b->y1) && (*y <= b->y2);

		uint32 dist = minDist;
		if (!inX && !inY) {
			dist = csx * csx + csy * csy;
		} else if (inX) {
			dist = csy * csy;
		} else if (inY) {
			dist = csx * csx;
		}

		if (dist < minDist) {
			minDist = dist;
			pos = i;
		}
	}
	// we now have the closest area near X,Y, so we can recalibrate
	// the X,Y coord to be in this area
	if (recalibrate) {
		b = &_roomArea[pos].box;
		if (*x < b->x1) *x = b->x1;
		if (*x > b->x2) *x = b->x2;
		if (*y < b->y1) *y = b->y1;
		if (*y > b->y2) *y = b->y2;
	}
	return pos;
}

uint16 Walk::findFreeArea(uint16 area) const {
	uint16 testArea;
	uint16 freeArea = 0;
	uint16 map = ABS(_roomArea[area].mapNeighbors);
	for (testArea = 1; testArea <= _roomAreaCount; ++testArea) {
		int b = _roomAreaCount - testArea;
		if (map & (1 << b)) {
			// connecting area, check if it's been struck off
			if (!isAreaStruck(testArea)) {
				// legitimate connecting area, keep it
				freeArea = testArea;
				break;
			}
		}
	}
	return freeArea;
}

bool Walk::isAreaStruck(uint16 area) const {
	uint16 i;
	bool found = false;
	for (i = 1; i <= _areaStrikeCount; ++i) {
		if (_areaStrike[i] == area) {
			found = true;
			break;
		}
	}
	return found;
}

bool Walk::calcPath(uint16 oldArea, uint16 newArea) {
	debug(9, "Walk::calcPath(%d, %d)", oldArea, newArea);
	_areaList[1] = _areaStrike[1] = oldArea;
	_areaListCount = _areaStrikeCount = 1;
	uint16 area = oldArea;
	while (_areaListCount > 0 && area != newArea) {
		area = findFreeArea(area);
		if (!area) {
			// wrong path, rolling back
			_areaList[_areaListCount] = 0;
			--_areaListCount;
			area = _areaList[_areaListCount];
		} else {
			++_areaListCount;
			assert(_areaListCount < MAX_WALK_DATA);
			_areaList[_areaListCount] = area;
			if (!isAreaStruck(area)) {
				++_areaStrikeCount;
				assert(_areaStrikeCount < MAX_WALK_DATA);
				_areaStrike[_areaStrikeCount] = area;
			}
		}
	}
	return _areaList[1] != 0;
}

void Walk::initWalkData() {
	uint16 curRoom = _vm->logic()->currentRoom();
	_roomArea = _vm->grid()->area(curRoom, 0);
	_roomAreaCount = _vm->grid()->areaMax(curRoom);

	_walkDataCount = 0;
	memset(_walkData, 0, sizeof(_walkData));
	_areaStrikeCount = 0;
	memset(_areaStrike, 0, sizeof(_areaStrike));
	_areaListCount = 0;
	memset(_areaList, 0, sizeof(_areaList));
}

void Walk::incWalkData(int16 px, int16 py, int16 x, int16 y, uint16 areaNum) {
	debug(9, "Walk::incWalkData(%d, %d, %d)", (x - px), (y - py), areaNum);
	if (px != x || py != y) {
		++_walkDataCount;
		assert(_walkDataCount < MAX_WALK_DATA);
		WalkData *pwd = &_walkData[_walkDataCount];
		pwd->dx = x - px;
		pwd->dy = y - py;
		pwd->area = &_roomArea[areaNum];
		pwd->areaNum = areaNum;
	}
}

} // End of namespace Queen