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
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
|
/* 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.
*
* $URL$
* $Id$
*
*/
// Event management module
#include "saga/saga.h"
#include "saga/gfx.h"
#include "saga/animation.h"
#include "saga/console.h"
#include "saga/scene.h"
#include "saga/interface.h"
#include "saga/palanim.h"
#include "saga/render.h"
#include "saga/sndres.h"
#include "saga/rscfile.h"
#include "saga/music.h"
#include "saga/actor.h"
#include "saga/events.h"
namespace Saga {
Events::Events(SagaEngine *vm) : _vm(vm) {
debug(8, "Initializing event subsystem...");
}
Events::~Events(void) {
debug(8, "Shutting down event subsystem...");
freeList();
}
// Function to process event list once per frame.
// First advances event times, then processes each event with the appropriate
// handler depending on the type of event.
int Events::handleEvents(long msec) {
Event *event_p;
long delta_time;
int result;
// Advance event times
processEventTime(msec);
// Process each event in list
for (EventList::iterator eventi = _eventList.begin(); eventi != _eventList.end(); ++eventi) {
event_p = (Event *)eventi.operator->();
// Call the appropriate event handler for the specific event type
switch (event_p->type) {
case kEvTOneshot:
result = handleOneShot(event_p);
break;
case kEvTContinuous:
result = handleContinuous(event_p);
break;
case kEvTInterval:
result = handleInterval(event_p);
break;
case kEvTImmediate:
result = handleImmediate(event_p);
break;
default:
result = kEvStInvalidCode;
warning("Invalid event code encountered");
break;
}
// Process the event appropriately based on result code from
// handler
if ((result == kEvStDelete) || (result == kEvStInvalidCode)) {
// If there is no event chain, delete the base event.
if (event_p->chain == NULL) {
eventi = _eventList.eraseAndPrev(eventi);
} else {
// If there is an event chain present, move the next event
// in the chain up, adjust it by the previous delta time,
// and reprocess the event
delta_time = event_p->time;
Event *from_chain = event_p->chain;
memcpy(event_p, from_chain, sizeof(*event_p));
free(from_chain);
event_p->time += delta_time;
--eventi;
}
} else if (result == kEvStBreak) {
break;
}
}
return SUCCESS;
}
int Events::handleContinuous(Event *event) {
double event_pc = 0.0; // Event completion percentage
int event_done = 0;
Surface *backGroundSurface;
BGInfo bgInfo;
Rect rect;
if (event->duration != 0) {
event_pc = ((double)event->duration - event->time) / event->duration;
} else {
event_pc = 1.0;
}
if (event_pc >= 1.0) {
// Cap percentage to 100
event_pc = 1.0;
event_done = 1;
}
if (event_pc < 0.0) {
// Event not signaled, skip it
return kEvStContinue;
} else if (!(event->code & kEvFSignaled)) {
// Signal event
event->code |= kEvFSignaled;
event_pc = 0.0;
}
switch (event->code & EVENT_MASK) {
case kPalEvent:
switch (event->op) {
case kEventBlackToPal:
_vm->_gfx->blackToPal((PalEntry *)event->data, event_pc);
break;
case kEventPalToBlack:
_vm->_gfx->palToBlack((PalEntry *)event->data, event_pc);
break;
case kEventPalFade:
_vm->_gfx->palFade((PalEntry *)event->data, event->param, event->param2, event->param3, event->param4, event_pc);
break;
default:
break;
}
break;
case kTransitionEvent:
switch (event->op) {
case kEventDissolve:
backGroundSurface = _vm->_render->getBackGroundSurface();
_vm->_scene->getBGInfo(bgInfo);
rect.left = rect.top = 0;
rect.right = bgInfo.bounds.width();
rect.bottom = bgInfo.bounds.height();
backGroundSurface->transitionDissolve(bgInfo.buffer, rect, 0, event_pc);
break;
case kEventDissolveBGMask:
// we dissolve it centered.
// set flag of Dissolve to 1. It is a hack to simulate zero masking.
int w, h;
byte *maskBuffer;
size_t len;
backGroundSurface = _vm->_render->getBackGroundSurface();
_vm->_scene->getBGMaskInfo(w, h, maskBuffer, len);
rect.left = (_vm->getDisplayWidth() - w) / 2;
rect.top = (_vm->getDisplayHeight() - h) / 2;
rect.setWidth(w);
rect.setHeight(h);
backGroundSurface->transitionDissolve( maskBuffer, rect, 1, event_pc);
break;
default:
break;
}
break;
default:
break;
}
if (event_done) {
return kEvStDelete;
}
return kEvStContinue;
}
int Events::handleImmediate(Event *event) {
double event_pc = 0.0; // Event completion percentage
bool event_done = false;
// Duration might be 0 so dont do division then
if (event->duration != 0) {
event_pc = ((double)event->duration - event->time) / event->duration;
} else {
// Just make sure that event_pc is 1.0 so event_done is true
event_pc = 1.0;
}
if (event_pc >= 1.0) {
// Cap percentage to 100
event_pc = 1.0;
event_done = true;
}
if (event_pc < 0.0) {
// Event not signaled, skip it
return kEvStBreak;
} else if (!(event->code & kEvFSignaled)) {
// Signal event
event->code |= kEvFSignaled;
event_pc = 0.0;
}
switch (event->code & EVENT_MASK) {
case kPalEvent:
switch (event->op) {
case kEventBlackToPal:
_vm->_gfx->blackToPal((PalEntry *)event->data, event_pc);
break;
case kEventPalToBlack:
_vm->_gfx->palToBlack((PalEntry *)event->data, event_pc);
break;
case kEventPalFade:
_vm->_gfx->palFade((PalEntry *)event->data, event->param, event->param2, event->param3, event->param4, event_pc);
break;
default:
break;
}
break;
case kScriptEvent:
case kBgEvent:
case kInterfaceEvent:
case kSceneEvent:
case kAnimEvent:
case kCutawayEvent:
case kActorEvent:
handleOneShot(event);
event_done = true;
break;
default:
warning("Unhandled Immediate event type (%d)", event->code & EVENT_MASK);
break;
}
if (event_done) {
return kEvStDelete;
}
return kEvStBreak;
}
int Events::handleOneShot(Event *event) {
Surface *backBuffer;
ScriptThread *sthread;
Rect rect;
if (event->time > 0) {
return kEvStContinue;
}
// Event has been signaled
switch (event->code & EVENT_MASK) {
case kTextEvent:
switch (event->op) {
case kEventDisplay:
((TextListEntry *)event->data)->display = true;
break;
case kEventRemove:
_vm->_scene->_textList.remove((TextListEntry *)event->data);
break;
default:
break;
}
break;
case kSoundEvent:
_vm->_sound->stopSound();
if (event->op == kEventPlay)
_vm->_sndRes->playSound(event->param, event->param2, event->param3 != 0);
break;
case kVoiceEvent:
_vm->_sndRes->playVoice(event->param);
break;
case kMusicEvent:
_vm->_music->stop();
if (event->op == kEventPlay)
_vm->_music->play(event->param, (MusicFlags)event->param2);
break;
case kBgEvent:
{
Surface *backGroundSurface;
BGInfo bgInfo;
if (!(_vm->_scene->getFlags() & kSceneFlagISO)) {
backBuffer = _vm->_gfx->getBackBuffer();
backGroundSurface = _vm->_render->getBackGroundSurface();
_vm->_scene->getBGInfo(bgInfo);
backGroundSurface->blit(bgInfo.bounds, bgInfo.buffer);
// If it is inset scene then draw black border
if (bgInfo.bounds.width() < _vm->getDisplayWidth() || bgInfo.bounds.height() < _vm->_scene->getHeight()) {
Common::Rect rect1(2, bgInfo.bounds.height() + 4);
Common::Rect rect2(bgInfo.bounds.width() + 4, 2);
Common::Rect rect3(2, bgInfo.bounds.height() + 4);
Common::Rect rect4(bgInfo.bounds.width() + 4, 2);
rect1.moveTo(bgInfo.bounds.left - 2, bgInfo.bounds.top - 2);
rect2.moveTo(bgInfo.bounds.left - 2, bgInfo.bounds.top - 2);
rect3.moveTo(bgInfo.bounds.right, bgInfo.bounds.top - 2);
rect4.moveTo(bgInfo.bounds.left - 2, bgInfo.bounds.bottom);
backGroundSurface->drawRect(rect1, kITEColorBlack);
backGroundSurface->drawRect(rect2, kITEColorBlack);
backGroundSurface->drawRect(rect3, kITEColorBlack);
backGroundSurface->drawRect(rect4, kITEColorBlack);
}
if (event->param == kEvPSetPalette) {
PalEntry *palPointer;
if (_vm->getGameType() == GType_IHNM) {
if (_vm->_spiritualBarometer > 255)
_vm->_gfx->setPaletteColor(kIHNMColorPortrait, 0xff, 0xff, 0xff);
else
_vm->_gfx->setPaletteColor(kIHNMColorPortrait,
_vm->_spiritualBarometer * _vm->_interface->_portraitBgColor.red / 256,
_vm->_spiritualBarometer * _vm->_interface->_portraitBgColor.green / 256,
_vm->_spiritualBarometer * _vm->_interface->_portraitBgColor.blue / 256);
}
_vm->_scene->getBGPal(palPointer);
_vm->_gfx->setPalette(palPointer);
}
}
_vm->_render->clearFlag(RF_DISABLE_ACTORS);
}
break;
case kPsychicProfileBgEvent:
{
ResourceContext *context = _vm->_resource->getContext(GAME_RESOURCEFILE);
byte *resourceData;
size_t resourceDataLength;
_vm->_resource->loadResource(context, _vm->getResourceDescription()->psychicProfileResourceId, resourceData, resourceDataLength);
byte *buf;
size_t buflen;
int width;
int height;
_vm->decodeBGImage(resourceData, resourceDataLength, &buf, &buflen, &width, &height);
const PalEntry *palette = (const PalEntry *)_vm->getImagePal(resourceData, resourceDataLength);
Surface *bgSurface = _vm->_render->getBackGroundSurface();
const Rect profileRect(width, height);
bgSurface->blit(profileRect, buf);
_vm->_frameCount++;
_vm->_gfx->setPalette(palette);
free(buf);
free(resourceData);
// Draw the scene. It won't be drawn by Render::drawScene(), as a placard is up
_vm->_scene->draw();
}
break;
case kAnimEvent:
switch (event->op) {
case kEventPlay:
_vm->_anim->play(event->param, event->time, true);
break;
case kEventStop:
_vm->_anim->stop(event->param);
break;
case kEventFrame:
_vm->_anim->play(event->param, event->time, false);
break;
case kEventSetFlag:
_vm->_anim->setFlag(event->param, event->param2);
break;
case kEventClearFlag:
_vm->_anim->clearFlag(event->param, event->param2);
break;
case kEventResumeAll:
_vm->_anim->resumeAll();
break;
default:
break;
}
break;
case kSceneEvent:
switch (event->op) {
case kEventDraw:
{
Surface *backGroundSurface;
BGInfo bgInfo;
backBuffer = _vm->_gfx->getBackBuffer();
backGroundSurface = _vm->_render->getBackGroundSurface();
_vm->_scene->getBGInfo(bgInfo);
backGroundSurface->blit(bgInfo.bounds, bgInfo.buffer);
_vm->_scene->draw();
}
break;
case kEventEnd:
_vm->_scene->nextScene();
return kEvStBreak;
default:
break;
}
break;
case kPalAnimEvent:
switch (event->op) {
case kEventCycleStart:
_vm->_palanim->cycleStart();
break;
case kEventCycleStep:
_vm->_palanim->cycleStep(event->time);
break;
default:
break;
}
break;
case kInterfaceEvent:
switch (event->op) {
case kEventActivate:
_vm->_interface->activate();
break;
case kEventDeactivate:
_vm->_interface->deactivate();
break;
case kEventSetStatus:
_vm->_interface->setStatusText((const char*)event->data);
_vm->_interface->drawStatusBar();
break;
case kEventClearStatus:
_vm->_interface->setStatusText("");
_vm->_interface->drawStatusBar();
break;
case kEventSetFadeMode:
_vm->_interface->setFadeMode(event->param);
break;
case kEventRestoreMode:
_vm->_interface->restoreMode();
break;
case kEventSetMode:
_vm->_interface->setMode(event->param);
break;
default:
break;
}
break;
case kScriptEvent:
switch (event->op) {
case kEventExecBlocking:
case kEventExecNonBlocking:
debug(6, "Exec module number %ld script entry number %ld", event->param, event->param2);
sthread = _vm->_script->createThread(event->param, event->param2);
if (sthread == NULL) {
_vm->_console->DebugPrintf("Thread creation failed.\n");
break;
}
sthread->_threadVars[kThreadVarAction] = event->param3;
sthread->_threadVars[kThreadVarObject] = event->param4;
sthread->_threadVars[kThreadVarWithObject] = event->param5;
sthread->_threadVars[kThreadVarActor] = event->param6;
if (event->op == kEventExecBlocking)
_vm->_script->completeThread();
break;
case kEventThreadWake:
_vm->_script->wakeUpThreads(event->param);
break;
}
break;
case kCursorEvent:
switch (event->op) {
case kEventShow:
_vm->_gfx->showCursor(true);
break;
case kEventHide:
_vm->_gfx->showCursor(false);
break;
case kEventSetNormalCursor:
// in ITE and IHNM demo there is just one cursor
if (_vm->getGameType() == GType_IHNM && _vm->getGameId() != GID_IHNM_DEMO)
_vm->_gfx->setCursor(kCursorNormal);
break;
case kEventSetBusyCursor:
// in ITE and IHNM demo there is just one cursor
if (_vm->getGameType() == GType_IHNM && _vm->getGameId() != GID_IHNM_DEMO)
_vm->_gfx->setCursor(kCursorBusy);
break;
default:
break;
}
break;
case kGraphicsEvent:
switch (event->op) {
case kEventFillRect:
rect.top = event->param2;
rect.bottom = event->param3;
rect.left = event->param4;
rect.right = event->param5;
((Surface *)event->data)->drawRect(rect, event->param);
break;
case kEventSetFlag:
_vm->_render->setFlag(event->param);
break;
case kEventClearFlag:
_vm->_render->clearFlag(event->param);
break;
default:
break;
}
case kCutawayEvent:
switch (event->op) {
case kEventClear:
_vm->_anim->clearCutaway();
break;
case kEventShowCutawayBg:
_vm->_anim->showCutawayBg(event->param);
break;
default:
break;
}
case kActorEvent:
switch (event->op) {
case kEventMove:
// TODO (check Actor::direct)
break;
default:
break;
}
default:
break;
}
return kEvStDelete;
}
int Events::handleInterval(Event *event) {
return kEvStDelete;
}
// Schedules an event in the event list; returns a pointer to the scheduled
// event suitable for chaining if desired.
Event *Events::queue(Event *event) {
Event *queuedEvent;
queuedEvent = _eventList.pushBack(*event).operator->();
initializeEvent(queuedEvent);
return queuedEvent;
}
// Places a 'add_event' on the end of an event chain given by 'head_event'
// (head_event may be in any position in the event chain)
Event *Events::chain(Event *headEvent, Event *addEvent) {
if (headEvent == NULL) {
return queue(addEvent);
}
Event *walkEvent;
for (walkEvent = headEvent; walkEvent->chain != NULL; walkEvent = walkEvent->chain) {
continue;
}
walkEvent->chain = (Event *)malloc(sizeof(*walkEvent->chain));
*walkEvent->chain = *addEvent;
initializeEvent(walkEvent->chain);
return walkEvent->chain;
}
int Events::initializeEvent(Event *event) {
event->chain = NULL;
switch (event->type) {
case kEvTOneshot:
break;
case kEvTContinuous:
case kEvTImmediate:
event->time += event->duration;
break;
case kEvTInterval:
break;
default:
return FAILURE;
}
return SUCCESS;
}
int Events::clearList() {
Event *chain_walk;
Event *next_chain;
Event *event_p;
// Walk down event list
for (EventList::iterator eventi = _eventList.begin(); eventi != _eventList.end(); ++eventi) {
event_p = (Event *)eventi.operator->();
// Only remove events not marked kEvFNoDestory (engine events)
if (!(event_p->code & kEvFNoDestory)) {
// Remove any events chained off this one */
for (chain_walk = event_p->chain; chain_walk != NULL; chain_walk = next_chain) {
next_chain = chain_walk->chain;
free(chain_walk);
}
eventi = _eventList.eraseAndPrev(eventi);
}
}
return SUCCESS;
}
// Removes all events from the list (even kEvFNoDestory)
int Events::freeList() {
Event *chain_walk;
Event *next_chain;
Event *event_p;
// Walk down event list
EventList::iterator eventi = _eventList.begin();
while (eventi != _eventList.end()) {
event_p = (Event *)eventi.operator->();
// Remove any events chained off this one */
for (chain_walk = event_p->chain; chain_walk != NULL; chain_walk = next_chain) {
next_chain = chain_walk->chain;
free(chain_walk);
}
eventi=_eventList.erase(eventi);
}
return SUCCESS;
}
// Walks down the event list, updating event times by 'msec'.
int Events::processEventTime(long msec) {
Event *event_p;
uint16 event_count = 0;
for (EventList::iterator eventi = _eventList.begin(); eventi != _eventList.end(); ++eventi) {
event_p = (Event *)eventi.operator->();
event_p->time -= msec;
event_count++;
if (event_p->type == kEvTImmediate)
break;
if (event_count > EVENT_WARNINGCOUNT) {
warning("Event list exceeds %u", EVENT_WARNINGCOUNT);
}
}
return SUCCESS;
}
} // End of namespace Saga
|