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/* 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/config-manager.h"
#include "common/debug-channels.h"
#include "common/events.h"
#include "common/EventRecorder.h"
#include "common/file.h"
#include "common/func.h"
#include "common/system.h"
#include "common/timer.h"
#include "common/util.h"
#include "graphics/palette.h"
#include "graphics/surface.h"
#include "dreamweb/dreamweb.h"
#include "dreamweb/dreamgen.h"
namespace DreamWeb {
DreamWebEngine::DreamWebEngine(OSystem *syst, const DreamWebGameDescription *gameDesc) :
Engine(syst), _gameDescription(gameDesc), _rnd("dreamweb"), _context(this), _base(_context) {
// Setup mixer
_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, ConfMan.getInt("sfx_volume"));
_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, ConfMan.getInt("music_volume"));
_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, ConfMan.getInt("speech_volume"));
_vSyncInterrupt = false;
_console = 0;
DebugMan.addDebugChannel(kDebugAnimation, "Animation", "Animation Debug Flag");
DebugMan.addDebugChannel(kDebugSaveLoad, "SaveLoad", "Track Save/Load Function");
_inSaveFile = 0;
_speed = 1;
_turbo = false;
_oldMouseState = 0;
_channel0 = 0;
_channel1 = 0;
_language = gameDesc->desc.language;
}
DreamWebEngine::~DreamWebEngine() {
DebugMan.clearAllDebugChannels();
delete _console;
}
static void vSyncInterrupt(void *refCon) {
DreamWebEngine *vm = (DreamWebEngine *)refCon;
if (!vm->isPaused()) {
vm->setVSyncInterrupt(true);
}
}
void DreamWebEngine::setVSyncInterrupt(bool flag) {
_vSyncInterrupt = flag;
}
void DreamWebEngine::waitForVSync() {
processEvents();
if (!_turbo) {
while (!_vSyncInterrupt) {
_system->delayMillis(10);
}
setVSyncInterrupt(false);
}
_base.doShake();
_base.doFade();
_system->updateScreen();
}
void DreamWebEngine::quit() {
_base._quitRequested = true;
_base.data.byte(DreamGen::kLasthardkey) = 1;
}
void DreamWebEngine::processEvents() {
if (_eventMan->shouldQuit()) {
quit();
return;
}
soundHandler();
Common::Event event;
int softKey, hardKey;
while (_eventMan->pollEvent(event)) {
switch(event.type) {
case Common::EVENT_RTL:
quit();
break;
case Common::EVENT_KEYDOWN:
if (event.kbd.flags & Common::KBD_CTRL) {
switch (event.kbd.keycode) {
case Common::KEYCODE_d:
_console->attach();
_console->onFrame();
break;
case Common::KEYCODE_f:
setSpeed(_speed != 20? 20: 1);
break;
case Common::KEYCODE_g:
_turbo = !_turbo;
break;
case Common::KEYCODE_c: //skip statue puzzle
_base.data.byte(DreamGen::kSymbolbotnum) = 3;
_base.data.byte(DreamGen::kSymboltopnum) = 5;
break;
default:
break;
}
return; //do not pass ctrl + key to the engine
}
// Some parts of the ASM code uses the hardware key
// code directly. We don't have that code, so we fake
// it for the keys where it's needed and assume it's
// 0 (which is actually an invalid value, as far as I
// know) otherwise.
hardKey = 0;
switch (event.kbd.keycode) {
case Common::KEYCODE_ESCAPE:
hardKey = 1;
break;
case Common::KEYCODE_SPACE:
hardKey = 57;
break;
default:
hardKey = 0;
break;
}
_base.data.byte(DreamGen::kLasthardkey) = hardKey;
// The rest of the keys are converted to ASCII. This
// is fairly restrictive, and eventually we may want
// to let through more keys. I think this is mostly to
// keep weird glyphs out of savegame names.
softKey = 0;
if (event.kbd.keycode >= Common::KEYCODE_a && event.kbd.keycode <= Common::KEYCODE_z) {
softKey = event.kbd.ascii & ~0x20;
} else if (event.kbd.keycode == Common::KEYCODE_MINUS ||
event.kbd.keycode == Common::KEYCODE_SPACE ||
(event.kbd.keycode >= Common::KEYCODE_0 && event.kbd.keycode <= Common::KEYCODE_9)) {
softKey = event.kbd.ascii;
} else if (event.kbd.keycode >= Common::KEYCODE_KP0 && event.kbd.keycode <= Common::KEYCODE_KP9) {
softKey = event.kbd.keycode - Common::KEYCODE_KP0 + '0';
} else if (event.kbd.keycode == Common::KEYCODE_KP_MINUS) {
softKey = '-';
} else if (event.kbd.keycode == Common::KEYCODE_BACKSPACE ||
event.kbd.keycode == Common::KEYCODE_DELETE) {
softKey = 8;
} else if (event.kbd.keycode == Common::KEYCODE_RETURN
|| event.kbd.keycode == Common::KEYCODE_KP_ENTER) {
softKey = 13;
}
if (softKey)
keyPressed(softKey);
break;
default:
break;
}
}
}
Common::Error DreamWebEngine::run() {
syncSoundSettings();
_console = new DreamWebConsole(this);
ConfMan.registerDefault("dreamweb_originalsaveload", "false");
_timer->installTimerProc(vSyncInterrupt, 1000000 / 70, this, "dreamwebVSync");
_context.__start();
_base._quitRequested = false;
_timer->removeTimerProc(vSyncInterrupt);
return Common::kNoError;
}
void DreamWebEngine::setSpeed(uint speed) {
debug(0, "setting speed %u", speed);
_speed = speed;
_timer->removeTimerProc(vSyncInterrupt);
_timer->installTimerProc(vSyncInterrupt, 1000000 / 70 / speed, this, "dreamwebVSync");
}
void DreamWebEngine::openFile(const Common::String &name) {
processEvents();
closeFile();
if (_file.open(name))
return;
// File not found? See if there is a save state with this name
// FIXME: Is this really needed? If yes, document why; if not,
// remove all traces of _inSaveFile.
_inSaveFile = _saveFileMan->openForLoading(name);
if (_inSaveFile)
return;
error("cannot open file %s", name.c_str());
}
uint32 DreamWebEngine::skipBytes(uint32 bytes) {
if (!_file.seek(bytes, SEEK_CUR))
error("seek failed");
return _file.pos();
}
uint32 DreamWebEngine::readFromFile(uint8 *dst, unsigned size) {
processEvents();
if (_file.isOpen())
return _file.read(dst, size);
if (_inSaveFile)
return _inSaveFile->read(dst, size);
error("file was not opened (read before open)");
}
void DreamWebEngine::closeFile() {
processEvents();
if (_file.isOpen())
_file.close();
delete _inSaveFile;
_inSaveFile = 0;
}
Common::String DreamWebEngine::getSavegameFilename(int slot) const {
// TODO: Are saves from all versions of Dreamweb compatible with each other?
// Then we can can consider keeping the filenames as DREAMWEB.Dnn.
// Otherwise, this must be changed to be target dependent.
//Common::String filename = _targetName + Common::String::format(".d%02d", savegameId);
Common::String filename = Common::String::format("DREAMWEB.D%02d", slot);
return filename;
}
void DreamWebEngine::keyPressed(uint16 ascii) {
debug(2, "key pressed = %04x", ascii);
uint16 in = (_base.data.word(DreamGen::kBufferin) + 1) & 0x0f;
uint16 out = _base.data.word(DreamGen::kBufferout);
if (in == out) {
warning("keyboard buffer is full");
return;
}
_base.data.word(DreamGen::kBufferin) = in;
DreamGen::g_keyBuffer[in] = ascii;
}
void DreamWebEngine::mouseCall(uint16 *x, uint16 *y, uint16 *state) {
processEvents();
Common::Point pos = _eventMan->getMousePos();
if (pos.x > 298)
pos.x = 298;
if (pos.x < 15)
pos.x = 15;
if (pos.y < 15)
pos.y = 15;
if (pos.y > 184)
pos.y = 184;
*x = pos.x;
*y = pos.y;
unsigned newState = _eventMan->getButtonState();
*state = (newState == _oldMouseState? 0 : newState);
_oldMouseState = newState;
}
void DreamWebEngine::getPalette(uint8 *data, uint start, uint count) {
_system->getPaletteManager()->grabPalette(data, start, count);
while (count--)
*data++ >>= 2;
}
void DreamWebEngine::setPalette(const uint8 *data, uint start, uint count) {
assert(start + count <= 256);
uint8 fixed[768];
for (uint i = 0; i < count * 3; ++i) {
fixed[i] = data[i] << 2;
}
_system->getPaletteManager()->setPalette(fixed, start, count);
}
void DreamWebEngine::blit(const uint8 *src, int pitch, int x, int y, int w, int h) {
if (y + h > 200)
h = 200 - y;
if (x + w > 320)
w = 320 - x;
if (h <= 0 || w <= 0)
return;
_system->copyRectToScreen(src, pitch, x, y, w, h);
}
void DreamWebEngine::printUnderMonitor() {
uint8 *dst = _base.workspace() + DreamGen::kScreenwidth * 43 + 76;
Graphics::Surface *s = _system->lockScreen();
if (!s)
error("lockScreen failed");
for (uint y = 0; y < 104; ++y) {
uint8 *src = (uint8 *)s->getBasePtr(76, 43 + 8 + y);
for (uint x = 0; x < 170; ++x) {
if (*src < 231)
*dst++ = *src++;
else {
++dst; ++src;
}
}
dst += DreamGen::kScreenwidth - 170;
}
_system->unlockScreen();
}
void DreamWebEngine::cls() {
_system->fillScreen(0);
}
uint8 DreamWebEngine::modifyChar(uint8 c) const {
if (c < 128)
return c;
switch(_language) {
case Common::DE_DEU:
switch(c)
{
case 129:
return 'Z' + 3;
case 132:
return 'Z' + 1;
case 142:
return 'Z' + 4;
case 154:
return 'Z' + 6;
case 225:
return 'A' - 1;
case 153:
return 'Z' + 5;
case 148:
return 'Z' + 2;
default:
return c;
}
case Common::ES_ESP:
switch(c) {
case 160:
return 'Z' + 1;
case 130:
return 'Z' + 2;
case 161:
return 'Z' + 3;
case 162:
return 'Z' + 4;
case 163:
return 'Z' + 5;
case 164:
return 'Z' + 6;
case 165:
return ',' - 1;
case 168:
return 'A' - 1;
case 173:
return 'A' - 4;
case 129:
return 'A' - 5;
default:
return c;
}
default:
return c;
}
}
} // End of namespace DreamWeb
namespace DreamGen {
// FIXME/TODO: Move this to a better place.
DreamBase::DreamBase(DreamWeb::DreamWebEngine *en) :
engine(en), _exText(kNumExObjects+2),
_setDesc(130), _blockDesc(98), _roomDesc(38), _freeDesc(82), _personText(1026) {
_openChangeSize = kInventx+(4*kItempicsize);
_quitRequested = false;
_currentSample = 0xff;
_channel0Playing = 0;
_channel0Repeat = 0;
_channel1Playing = 0xff;
_speechLoaded = false;
_backdropBlocks = 0;
_reelList = 0;
_oldSubject._type = 0;
_oldSubject._index = 0;
}
} // End of namespace DreamGen
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