bool Intro::doIntro(bool floppyIntro) {
if (!SkyEngine::isCDVersion())
floppyIntro = true;
_skyMusic->loadSection(0);
_skySound->loadSection(0);
if (!escDelay(3000))
return false;
if (floppyIntro)
_skyMusic->startMusic(1);
uint16 *seqData = _mainIntroSeq;
while (*seqData != SEQEND) {
if (!nextPart(seqData))
return false;
}
if (floppyIntro)
seqData = _floppyIntroSeq;
else
seqData = _cdIntroSeq;
while (*seqData != SEQEND) {
if (!nextPart(seqData))
return false;
}
return true;
}
bool Intro::floppyScrollFlirt(void) {
uint8 *scrollScreen = (uint8*)malloc(FRAME_SIZE * 2);
memset(scrollScreen, 0, FRAME_SIZE);
memcpy(scrollScreen + FRAME_SIZE, _skyScreen->giveCurrent(), FRAME_SIZE);
uint8 *scrollPos = scrollScreen + FRAME_SIZE;
uint8 *vgaData = _skyDisk->loadFile(60100);
uint8 *diffData = _skyDisk->loadFile(60101);
uint16 frameNum = READ_LE_UINT16(diffData);
uint8 *diffPtr = diffData + 2;
uint8 *vgaPtr = vgaData;
bool doContinue = true;
for (uint16 frameCnt = 1; (frameCnt < frameNum) && doContinue; frameCnt++) {
uint8 scrollVal = *diffPtr++;
if (scrollVal)
scrollPos -= scrollVal * GAME_SCREEN_WIDTH;
uint16 scrPos = 0;
while (scrPos < FRAME_SIZE) {
uint8 nrToDo, nrToSkip;
do {
nrToSkip = *diffPtr++;
scrPos += nrToSkip;
} while (nrToSkip == 255);
do {
nrToDo = *diffPtr++;
memcpy(scrollPos + scrPos, vgaPtr, nrToDo);
scrPos += nrToDo;
vgaPtr += nrToDo;
} while (nrToDo == 255);
}
_system->copyRectToScreen(scrollPos, GAME_SCREEN_WIDTH, 0, 0, GAME_SCREEN_WIDTH, GAME_SCREEN_HEIGHT);
_system->updateScreen();
if (!escDelay(60))
doContinue = false;
}
memcpy(_skyScreen->giveCurrent(), scrollPos, FRAME_SIZE);
free(diffData);
free(vgaData);
free(scrollScreen);
return doContinue;
}
bool Intro::commandFlirt(uint16 *&data) {
_skyScreen->startSequence(*data++);
while ((*data != COMMANDEND) || _skyScreen->sequenceRunning()) {
while ((_skyScreen->seqFramesLeft() < *data)) {
data++;
uint16 command = *data++;
switch (command) {
case IC_PREPARE_TEXT:
_skyText->displayText(*data++, _textBuf, true, INTRO_TEXT_WIDTH, 255);
break;
case IC_SHOW_TEXT:
((DataFileHeader *)_textBuf)->s_x = *data++;
((DataFileHeader *)_textBuf)->s_y = *data++;
showTextBuf();
break;
case IC_REMOVE_TEXT:
restoreScreen();
break;
case IC_MAKE_SOUND:
_skySound->playSound(data[0], data[1], 0);
data += 2;
break;
case IC_FX_VOLUME:
_skySound->playSound(1, *data++, 0);
break;
default:
error("Unknown FLIRT command %X", command);
}
}
if (!escDelay(50)) {
_skyScreen->stopSequence();
return false;
}
}
data++; // move pointer over "COMMANDEND"
return true;
}
bool Intro::nextPart(uint16 *&data) {
uint8 *vData = NULL;
// return false means cancel intro
uint16 command = *data++;
switch (command) {
case SHOWSCREEN:
_skyScreen->showScreen(*data++);
return true;
case FADEUP:
_skyScreen->paletteFadeUp(*data++);
_relDelay += 32 * 20; // hack: the screen uses a seperate delay function for the
// blocking fadeups. So add 32*20 msecs to out delay counter.
return true;
case FADEDOWN:
_skyScreen->fnFadeDown(0);
_relDelay += 32 * 20; // hack: see above.
return true;
case DELAY:
if (!escDelay(*data++))
return false;
return true;
case DOFLIRT:
_skyScreen->startSequence(*data++);
while (_skyScreen->sequenceRunning())
if (!escDelay(50))
return false;
return true;
case SCROLLFLIRT:
return floppyScrollFlirt();
case COMMANDFLIRT:
return commandFlirt(data);
case STOPFLIRT:
_skyScreen->stopSequence();
return true;
case STARTMUSIC:
_skyMusic->startMusic(*data++);
return true;
case WAITMUSIC:
while (_skyMusic->musicIsPlaying())
if (!escDelay(50))
return false;
return true;
case BGFLIRT:
_skyScreen->startSequence(*data++);
return true;
case WAITFLIRT:
while (_skyScreen->sequenceRunning())
if (!escDelay(50))
return false;
return true;
case PLAYVOICE:
if (!escDelay(200))
return false;
vData = _skyDisk->loadFile(*data++);
// HACK: Fill the header with silence. We should
// probably use _skySound instead of calling playRaw()
// directly, but this will have to do for now.
memset(vData, 127, sizeof(struct dataFileHeader));
_mixer->playRaw(&_voice, vData, _skyDisk->_lastLoadedFileSize, 11025,
Audio::Mixer::FLAG_AUTOFREE | Audio::Mixer::FLAG_UNSIGNED, SOUND_VOICE);
return true;
case WAITVOICE:
while (_mixer->isSoundHandleActive(_voice))
if (!escDelay(50))
return false;
return true;
case LOADBG:
_mixer->stopID(SOUND_BG);
if (_bgBuf)
free(_bgBuf);
_bgBuf = _skyDisk->loadFile(*data++);
_bgSize = _skyDisk->_lastLoadedFileSize;
return true;
case LOOPBG:
_mixer->stopID(SOUND_BG);
_mixer->playRaw(&_bgSfx, _bgBuf + 256, _bgSize - 768, 11025,
Audio::Mixer::FLAG_UNSIGNED | Audio::Mixer::FLAG_LOOP, SOUND_BG);
return true;
case PLAYBG:
_mixer->stopID(SOUND_BG);
_mixer->playRaw(&_bgSfx, _bgBuf + 256, _bgSize - 768, 11025,
Audio::Mixer::FLAG_UNSIGNED, SOUND_BG);
return true;
case STOPBG:
_mixer->stopID(SOUND_BG);
return true;
default:
error("Unknown intro command %X", command);
}
return true;
}
