107 lines
3 KiB
C++
107 lines
3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "xyzzy/xyzzy.h"
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#include "xyzzy/detection.h"
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#include "xyzzy/console.h"
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#include "common/scummsys.h"
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#include "common/config-manager.h"
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#include "common/debug-channels.h"
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#include "common/events.h"
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#include "common/system.h"
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#include "engines/util.h"
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#include "graphics/palette.h"
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namespace Xyzzy {
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XyzzyEngine *g_engine;
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XyzzyEngine::XyzzyEngine(OSystem *syst, const ADGameDescription *gameDesc) : Engine(syst),
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_gameDescription(gameDesc), _randomSource("Xyzzy") {
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g_engine = this;
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}
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XyzzyEngine::~XyzzyEngine() {
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delete _screen;
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}
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uint32 XyzzyEngine::getFeatures() const {
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return _gameDescription->flags;
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}
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Common::String XyzzyEngine::getGameId() const {
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return _gameDescription->gameId;
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}
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Common::Error XyzzyEngine::run() {
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// Initialize 320x200 paletted graphics mode
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initGraphics(320, 200);
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_screen = new Graphics::Screen();
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// Set the engine's debugger console
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setDebugger(new Console());
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// If a savegame was selected from the launcher, load it
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int saveSlot = ConfMan.getInt("save_slot");
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if (saveSlot != -1)
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(void)loadGameState(saveSlot);
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// Draw a series of boxes on screen as a sample
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for (int i = 0; i < 100; ++i)
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_screen->frameRect(Common::Rect(i, i, 320 - i, 200 - i), i);
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_screen->update();
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// Simple event handling loop
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byte pal[256 * 3] = { 0 };
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Common::Event e;
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int offset = 0;
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while (!shouldQuit()) {
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while (g_system->getEventManager()->pollEvent(e)) {
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}
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// Cycle through a simple palette
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++offset;
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for (int i = 0; i < 256; ++i)
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pal[i * 3 + 1] = (i + offset) % 256;
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g_system->getPaletteManager()->setPalette(pal, 0, 256);
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_screen->update();
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// Delay for a bit. All events loops should have a delay
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// to prevent the system being unduly loaded
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g_system->delayMillis(10);
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}
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return Common::kNoError;
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}
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Common::Error XyzzyEngine::syncGame(Common::Serializer &s) {
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// The Serializer has methods isLoading() and isSaving()
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// if you need to specific steps; for example setting
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// an array size after reading it's length, whereas
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// for saving it would write the existing array's length
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int dummy = 0;
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s.syncAsUint32LE(dummy);
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return Common::kNoError;
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}
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} // namespace Xyzzy
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