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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/scummsys.h"
#include "common/config-manager.h"
#include "mads/mads.h"
#include "mads/graphics.h"
#include "mads/msurface.h"
#include "mads/nebular/dialogs_nebular.h"
namespace MADS {
namespace Nebular {
bool CopyProtectionDialog::show(MADSEngine *vm) {
CopyProtectionDialog *dlg = new CopyProtectionDialog(vm);
delete dlg;
return true;
}
CopyProtectionDialog::CopyProtectionDialog(MADSEngine *vm): _vm(vm) {
getHogAnusEntry(_hogEntry);
}
bool CopyProtectionDialog::getHogAnusEntry(HOGANUS &entry) {
File f;
f.open("*HOGANUS.DAT");
// Read in the total number of entries, and randomly pick an entry to use
int numEntries = f.readUint16LE();
int entryIndex = _vm->getRandomNumber(numEntries - 2) + 1;
// Read in the encrypted entry
f.seek(28 * entryIndex + 2);
byte entryData[28];
f.read(entryData, 28);
// Decrypt it
for (int i = 0; i < 28; ++i)
entryData[i] = ~entryData[i];
// Fill out the fields
entry._bookId = entryData[0];
entry._pageNum = READ_LE_UINT16(&entryData[2]);
entry._lineNum = READ_LE_UINT16(&entryData[4]);
entry._wordNum = READ_LE_UINT16(&entryData[6]);
entry._word = Common::String((char *)&entryData[8]);
f.close();
return true;
}
} // End of namespace Nebular
} // End of namespace MADS
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