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110 lines
3.1 KiB
C++
110 lines
3.1 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 "common/file.h"
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#include "common/memstream.h"
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#include "freescape/freescape.h"
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namespace Freescape {
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CastleEngine::CastleEngine(OSystem *syst, const ADGameDescription *gd) : FreescapeEngine(syst, gd) {
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_playerHeightNumber = 1;
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_playerHeights.push_back(16);
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_playerHeights.push_back(48);
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_playerHeight = _playerHeights[_playerHeightNumber];
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_playerWidth = 8;
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_playerDepth = 8;
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}
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Common::SeekableReadStream *CastleEngine::decryptFile(const Common::String filename) {
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Common::File file;
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file.open(filename);
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if (!file.isOpen())
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error("Failed to open %s", filename.c_str());
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int size = file.size();
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byte *encryptedBuffer = (byte *)malloc(size);
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file.read(encryptedBuffer, size);
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file.close();
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int seed = 24;
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for (int i = 0; i < size; i++) {
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encryptedBuffer[i] ^= seed;
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seed = (seed + 1) & 0xff;
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}
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return (new Common::MemoryReadStream(encryptedBuffer, size));
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}
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void CastleEngine::loadAssets() {
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Common::SeekableReadStream *stream = nullptr;
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stream = decryptFile("CMLE");
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loadMessagesVariableSize(stream, 0x11, 164);
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delete stream;
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stream = decryptFile("CMEDF");
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load8bitBinary(stream, 0, 16);
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for (auto &it : _areaMap)
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it._value->addStructure(_areaMap[255]);
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delete stream;
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// CPC
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// file = gameDir.createReadStreamForMember("cm.bin");
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// if (file == nullptr)
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// error("Failed to open cm.bin");
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// load8bitBinary(file, 0x791a, 16);
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}
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void CastleEngine::gotoArea(uint16 areaID, int entranceID) {
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debugC(1, kFreescapeDebugMove, "Jumping to area: %d, entrance: %d", areaID, entranceID);
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if (!_gameStateBits.contains(areaID))
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_gameStateBits[areaID] = 0;
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assert(_areaMap.contains(areaID));
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_currentArea = _areaMap[areaID];
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_currentArea->show();
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if (entranceID > 0)
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traverseEntrance(entranceID);
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playSound(5, false);
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_lastPosition = _position;
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if (_currentArea->_skyColor > 0 && _currentArea->_skyColor != 255) {
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_gfx->_keyColor = 0;
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_gfx->clear(_currentArea->_skyColor);
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} else
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_gfx->_keyColor = 255;
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}
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Common::Error CastleEngine::saveGameStreamExtended(Common::WriteStream *stream, bool isAutosave) {
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return Common::kNoError;
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}
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Common::Error CastleEngine::loadGameStreamExtended(Common::SeekableReadStream *stream) {
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return Common::kNoError;
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}
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} // End of namespace Freescape
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