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scummvm/sky/sky.cpp
Jonathan Gray 4e3bfc6a66 Implement pausing using the 'p' key like the original did. 
Feature request #1145781.

Convert key handling from if statements to a case statement
while here.

svn-id: r17321
2005-04-01 07:33:39 +00:00

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14 KiB
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003-2005 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include "stdafx.h"
#include "backends/fs/fs.h"
#include "base/gameDetector.h"
#include "base/plugins.h"
#include "common/config-manager.h"
#include "common/file.h"
#include "common/system.h"
#include "common/timer.h"
#include "sky/control.h"
#include "sky/debug.h"
#include "sky/disk.h"
#include "sky/grid.h"
#include "sky/intro.h"
#include "sky/logic.h"
#include "sky/mouse.h"
#include "sky/music/adlibmusic.h"
#include "sky/music/gmmusic.h"
#include "sky/music/mt32music.h"
#include "sky/music/musicbase.h"
#include "sky/screen.h"
#include "sky/sky.h"
#include "sky/skydefs.h"
#include "sky/sound.h"
#include "sky/text.h"
#include "sky/compact.h"
#include "sound/mididrv.h"
#include "sound/mixer.h"
#ifdef _WIN32_WCE
extern bool toolbar_drawn;
extern bool draw_keyboard;
#endif
/*
At the beginning the reverse engineers were happy, and did rejoice at
their task, for the engine before them did shineth and was full of
promise. But then they did look closer and see'th the aweful truth;
it's code was assembly and messy (rareth was its comments). And so large
were it's includes that did at first seem small; queereth also was its
compact(s). Then they did findeth another version, and this was slightly
different from the first. Then a third, and this was different again.
All different, but not really better, for all were not really compatible.
But, eventually, it did come to pass that Steel Sky was implemented on
a modern platform. And the programmers looked and saw that it was indeed a
miracle. But they were not joyous and instead did weep for nobody knew
just what had been done. Except people who read the source. Hello.
With apologies to the CD32 SteelSky file.
*/
static const GameSettings skySetting =
{"sky", "Beneath a Steel Sky", 0 };
GameList Engine_SKY_gameList() {
GameList games;
games.push_back(skySetting);
return games;
}
DetectedGameList Engine_SKY_detectGames(const FSList &fslist) {
DetectedGameList detectedGames;
// Iterate over all files in the given directory
for (FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
if (!file->isDirectory()) {
const char *fileName = file->displayName().c_str();
if (0 == scumm_stricmp("sky.dsk", fileName)) {
// Match found, add to list of candidates, then abort inner loop.
detectedGames.push_back(skySetting);
break;
}
}
}
return detectedGames;
}
Engine *Engine_SKY_create(GameDetector *detector, OSystem *syst) {
return new Sky::SkyEngine(detector, syst);
}
REGISTER_PLUGIN(SKY, "Beneath a Steel Sky")
namespace Sky {
void *SkyEngine::_itemList[300];
SystemVars SkyEngine::_systemVars = {0, 0, 0, 0, 4316, 0, 0, false, false, false };
SkyEngine::SkyEngine(GameDetector *detector, OSystem *syst)
: Engine(syst), _fastMode(0) {
}
SkyEngine::~SkyEngine() {
delete _skyLogic;
delete _skySound;
delete _skyMusic;
delete _skyText;
delete _skyMouse;
delete _skyScreen;
delete _debugger;
}
void SkyEngine::errorString(const char *buf1, char *buf2) {
strcpy(buf2, buf1);
}
void SkyEngine::initVirgin() {
_skyScreen->setPalette(60111);
_skyScreen->showScreen(60110);
}
void SkyEngine::handleKey(void) {
if (_keyPressed && _systemVars.paused) {
_skySound->fnUnPauseFx();
_systemVars.paused = false;
_skyScreen->setPaletteEndian((uint8 *)_skyCompact->fetchCpt(SkyEngine::_systemVars.currentPalette));
_keyFlags = _keyPressed = 0;
return;
}
if (_keyFlags == OSystem::KBD_CTRL) {
if (_keyPressed == 'f')
_fastMode ^= 1;
else if (_keyPressed == 'g')
_fastMode ^= 2;
else if (_keyPressed == 'd')
_debugger->attach();
} else {
switch (_keyPressed) {
case '`':
case '~':
case '#':
_debugger->attach();
break;
case 63:
_skyControl->doControlPanel();
break;
case 27:
if (!_systemVars.pastIntro)
_skyControl->restartGame();
break;
case '.':
_skyMouse->logicClick();
break;
case 'p':
_skyScreen->halvePalette();
_skySound->fnPauseFx();
_systemVars.paused = true;
break;
}
}
_keyFlags = _keyPressed = 0;
}
int SkyEngine::go() {
_mouseX = GAME_SCREEN_WIDTH / 2;
_mouseY = GAME_SCREEN_HEIGHT / 2;
_keyFlags = _keyPressed = 0;
uint16 result = 0;
if (ConfMan.hasKey("save_slot") && ConfMan.getInt("save_slot") >= 0)
result = _skyControl->quickXRestore(ConfMan.getInt("save_slot"));
if (result != GAME_RESTORED) {
bool introSkipped = false;
if (_systemVars.gameVersion > 267) {// don't do intro for floppydemos
_skyIntro = new Intro(_skyDisk, _skyScreen, _skyMusic, _skySound, _skyText, _mixer, _system);
introSkipped = !_skyIntro->doIntro(_floppyIntro);
if (_skyIntro->_quitProg) {
delete _skyIntro;
_skyControl->showGameQuitMsg();
}
delete _skyIntro;
}
_skyLogic->initScreen0();
if (introSkipped)
_skyControl->restartGame();
}
_lastSaveTime = _system->getMillis();
while (1) {
if (_debugger->isAttached())
_debugger->onFrame();
int32 frameTime = (int32)_system->getMillis();
if (_system->getMillis() - _lastSaveTime > 5 * 60 * 1000) {
if (_skyControl->loadSaveAllowed()) {
_lastSaveTime = _system->getMillis();
_skyControl->doAutoSave();
} else
_lastSaveTime += 30 * 1000; // try again in 30 secs
}
_skySound->checkFxQueue();
_skyMouse->mouseEngine((uint16)_mouseX, (uint16)_mouseY);
handleKey();
while (_systemVars.paused) {
_system->updateScreen();
delay(300);
handleKey();
}
_skyLogic->engine();
_skyScreen->recreate();
_skyScreen->spriteEngine();
if (_debugger->showGrid()) {
_skyScreen->showGrid(_skyLogic->_skyGrid->giveGrid(Logic::_scriptVariables[SCREEN]));
_skyScreen->forceRefresh();
}
_skyScreen->flip();
if (_fastMode & 2)
delay(0);
else if (_fastMode & 1)
delay(10);
else
delay((frameTime + _systemVars.gameSpeed) - _system->getMillis());
}
return 0;
}
int SkyEngine::init(GameDetector &detector) {
_system->beginGFXTransaction();
initCommonGFX(detector);
_system->initSize(320, 200);
_system->endGFXTransaction();
if (!_mixer->isReady())
warning("Sound initialisation failed");
_mixer->setVolumeForSoundType(SoundMixer::kSFXSoundType, ConfMan.getInt("sfx_volume"));
_mixer->setVolumeForSoundType(SoundMixer::kMusicSoundType, ConfMan.getInt("music_volume"));
_floppyIntro = ConfMan.getBool("alt_intro");
_skyDisk = new Disk(_gameDataPath);
_skySound = new Sound(_mixer, _skyDisk, ConfMan.getInt("sfx_volume"));
_systemVars.gameVersion = _skyDisk->determineGameVersion();
int midiDriver = MidiDriver::detectMusicDriver(MDT_ADLIB | MDT_NATIVE | MDT_PREFER_NATIVE);
if (midiDriver == MD_ADLIB) {
_systemVars.systemFlags |= SF_SBLASTER;
_skyMusic = new AdlibMusic(_mixer, _skyDisk);
} else {
_systemVars.systemFlags |= SF_ROLAND;
if (ConfMan.getBool("native_mt32") || (midiDriver == MD_MT32))
_skyMusic = new MT32Music(MidiDriver::createMidi(midiDriver), _skyDisk);
else
_skyMusic = new GmMusic(MidiDriver::createMidi(midiDriver), _skyDisk);
}
if (isCDVersion()) {
_systemVars.systemFlags |= SF_ALLOW_SPEECH;
if (ConfMan.hasKey("nosubtitles")) {
warning("Configuration key 'nosubtitles' is deprecated. Use 'subtitles' instead");
if (!ConfMan.getBool("nosubtitles"))
_systemVars.systemFlags |= SF_ALLOW_TEXT;
}
if (ConfMan.getBool("subtitles"))
_systemVars.systemFlags |= SF_ALLOW_TEXT;
} else
_systemVars.systemFlags |= SF_ALLOW_TEXT;
_systemVars.systemFlags |= SF_PLAY_VOCS;
_systemVars.gameSpeed = 50;
_skyCompact = new SkyCompact();
_skyText = new Text(_skyDisk, _skyCompact);
_skyMouse = new Mouse(_system, _skyDisk, _skyCompact);
_skyScreen = new Screen(_system, _skyDisk, _skyCompact);
initVirgin();
initItemList();
loadFixedItems();
_skyLogic = new Logic(_skyCompact, _skyScreen, _skyDisk, _skyText, _skyMusic, _skyMouse, _skySound);
_skyMouse->useLogicInstance(_skyLogic);
// initialize timer *after* _skyScreen has been initialized.
_timer->installTimerProc(&timerHandler, 1000000 / 50, this); //call 50 times per second
_skyControl = new Control(_saveFileMan, _skyScreen, _skyDisk, _skyMouse, _skyText, _skyMusic, _skyLogic, _skySound, _skyCompact, _system);
_skyLogic->useControlInstance(_skyControl);
switch (Common::parseLanguage(ConfMan.get("language"))) {
case Common::DE_DEU:
_systemVars.language = SKY_GERMAN;
break;
case Common::FR_FRA:
_systemVars.language = SKY_FRENCH;
break;
case Common::IT_ITA:
_systemVars.language = SKY_ITALIAN;
break;
case Common::PT_BRA:
_systemVars.language = SKY_PORTUGUESE;
break;
case Common::ES_ESP:
_systemVars.language = SKY_SPANISH;
break;
case Common::SE_SWE:
_systemVars.language = SKY_SWEDISH;
break;
case Common::EN_GRB:
_systemVars.language = SKY_ENGLISH;
break;
default:
_systemVars.language = SKY_USA;
break;
}
if (!_skyDisk->fileExists(60600 + SkyEngine::_systemVars.language * 8)) {
warning("The language you selected does not exist in your BASS version.");
if (_skyDisk->fileExists(60600))
SkyEngine::_systemVars.language = SKY_ENGLISH;
else if (_skyDisk->fileExists(60600 + SKY_USA * 8))
SkyEngine::_systemVars.language = SKY_USA;
else
for (uint8 cnt = SKY_ENGLISH; cnt <= SKY_SPANISH; cnt++)
if (_skyDisk->fileExists(60600 + cnt * 8)) {
SkyEngine::_systemVars.language = cnt;
break;
}
}
_skyMusic->setVolume(ConfMan.getInt("music_volume") >> 1);
_debugger = new Debugger(_skyLogic, _skyMouse, _skyScreen, _skyCompact);
return 0;
}
void SkyEngine::initItemList() {
//See List.asm for (cryptic) item # descriptions
for (int i = 0; i < 300; i++)
_itemList[i] = NULL;
//init the non-null items
// I don't see where the script could possible access this.. so it should be safe to
// leave these as NULL.
/*_itemList[119] = (void **)SkyCompact::data_0; // Compacts - Section 0
_itemList[120] = (void **)SkyCompact::data_1; // Compacts - Section 1
if (isDemo()) {
_itemList[121] = _itemList[122] = _itemList[123] = _itemList[124] = _itemList[125] = (void **)SkyCompact::data_0;
} else {
_itemList[121] = (void **)SkyCompact::data_2; // Compacts - Section 2
_itemList[122] = (void **)SkyCompact::data_3; // Compacts - Section 3
_itemList[123] = (void **)SkyCompact::data_4; // Compacts - Section 4
_itemList[124] = (void **)SkyCompact::data_5; // Compacts - Section 5
_itemList[125] = (void **)SkyCompact::data_6; // Compacts - Section 6
}*/
}
void SkyEngine::loadFixedItems(void) {
_itemList[49] = _skyDisk->loadFile(49);
_itemList[50] = _skyDisk->loadFile(50);
_itemList[73] = _skyDisk->loadFile(73);
_itemList[262] = _skyDisk->loadFile(262);
if (!isDemo()) {
_itemList[36] = _skyDisk->loadFile(36);
_itemList[263] = _skyDisk->loadFile(263);
_itemList[264] = _skyDisk->loadFile(264);
_itemList[265] = _skyDisk->loadFile(265);
_itemList[266] = _skyDisk->loadFile(266);
_itemList[267] = _skyDisk->loadFile(267);
_itemList[269] = _skyDisk->loadFile(269);
_itemList[271] = _skyDisk->loadFile(271);
_itemList[272] = _skyDisk->loadFile(272);
}
}
void *SkyEngine::fetchItem(uint32 num) {
return _itemList[num];
}
void SkyEngine::timerHandler(void *refCon) {
((SkyEngine *)refCon)->gotTimerTick();
}
void SkyEngine::gotTimerTick(void) {
_skyScreen->handleTimer();
}
void SkyEngine::delay(int32 amount) {
OSystem::Event event;
uint32 start = _system->getMillis();
_keyFlags = _keyPressed = 0; //reset
if (amount < 0)
amount = 0;
do {
while (_system->pollEvent(event)) {
switch (event.type) {
case OSystem::EVENT_KEYDOWN:
_keyFlags = event.kbd.flags;
_keyPressed = (byte)event.kbd.ascii;
break;
case OSystem::EVENT_MOUSEMOVE:
if (!(_systemVars.systemFlags & SF_MOUSE_LOCKED)) {
_mouseX = event.mouse.x;
_mouseY = event.mouse.y;
}
break;
case OSystem::EVENT_LBUTTONDOWN:
#ifdef __PALM_OS__
_mouseX = event.mouse.x;
_mouseY = event.mouse.y;
#endif
_skyMouse->buttonPressed(2);
break;
case OSystem::EVENT_RBUTTONDOWN:
#ifdef __PALM_OS__
_mouseX = event.mouse.x;
_mouseY = event.mouse.y;
#endif
_skyMouse->buttonPressed(1);
break;
case OSystem::EVENT_QUIT:
if (!SkyEngine::_systemVars.quitting)
_skyControl->showGameQuitMsg(); // will call _system->quit()
break;
default:
break;
}
}
if (amount > 0)
_system->delayMillis((amount > 10) ? 10 : amount);
} while (_system->getMillis() < start + amount);
}
bool SkyEngine::isDemo(void) {
switch (_systemVars.gameVersion) {
case 109: // pc gamer demo
case 267: // floppy demo
case 365: // cd demo
return true;
case 288:
case 303:
case 331:
case 348:
case 368:
case 372:
return false;
default:
error("Unknown game version %d", _systemVars.gameVersion);
}
}
bool SkyEngine::isCDVersion(void) {
switch (_systemVars.gameVersion) {
case 109:
case 267:
case 288:
case 303:
case 331:
case 348:
return false;
case 365:
case 368:
case 372:
return true;
default:
error("Unknown game version %d", _systemVars.gameVersion);
}
}
} // End of namespace Sky
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