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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "xyzzy/xyzzy.h"
#include "graphics/framelimiter.h"
#include "xyzzy/detection.h"
#include "xyzzy/console.h"
#include "common/scummsys.h"
#include "common/config-manager.h"
#include "common/debug-channels.h"
#include "common/events.h"
#include "common/system.h"
#include "engines/util.h"
#include "graphics/paletteman.h"
namespace Xyzzy {
XyzzyEngine *g_engine;
XyzzyEngine::XyzzyEngine(OSystem *syst, const ADGameDescription *gameDesc) : Engine(syst),
_gameDescription(gameDesc), _randomSource("Xyzzy") {
g_engine = this;
}
XyzzyEngine::~XyzzyEngine() {
delete _screen;
}
uint32 XyzzyEngine::getFeatures() const {
return _gameDescription->flags;
}
Common::String XyzzyEngine::getGameId() const {
return _gameDescription->gameId;
}
Common::Error XyzzyEngine::run() {
// Initialize 320x200 paletted graphics mode
initGraphics(320, 200);
_screen = new Graphics::Screen();
// Set the engine's debugger console
setDebugger(new Console());
// If a savegame was selected from the launcher, load it
int saveSlot = ConfMan.getInt("save_slot");
if (saveSlot != -1)
(void)loadGameState(saveSlot);
// Draw a series of boxes on screen as a sample
for (int i = 0; i < 100; ++i)
_screen->frameRect(Common::Rect(i, i, 320 - i, 200 - i), i);
_screen->update();
// Simple event handling loop
byte pal[256 * 3] = { 0 };
Common::Event e;
int offset = 0;
Graphics::FrameLimiter limiter(g_system, 60);
while (!shouldQuit()) {
while (g_system->getEventManager()->pollEvent(e)) {
}
// Cycle through a simple palette
++offset;
for (int i = 0; i < 256; ++i)
pal[i * 3 + 1] = (i + offset) % 256;
g_system->getPaletteManager()->setPalette(pal, 0, 256);
// Delay for a bit. All events loops should have a delay
// to prevent the system being unduly loaded
limiter.delayBeforeSwap();
_screen->update();
limiter.startFrame();
}
return Common::kNoError;
}
Common::Error XyzzyEngine::syncGame(Common::Serializer &s) {
// The Serializer has methods isLoading() and isSaving()
// if you need to specific steps; for example setting
// an array size after reading it's length, whereas
// for saving it would write the existing array's length
int dummy = 0;
s.syncAsUint32LE(dummy);
return Common::kNoError;
}
} // End of namespace Xyzzy
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