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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 "xeen/dialogs/dialogs_copy_protection.h"
#include "xeen/dialogs/dialogs_input.h"
#include "xeen/resources.h"
#include "xeen/xeen.h"
namespace Xeen {
bool CopyProtection::show(XeenEngine *vm) {
CopyProtection *dlg = new CopyProtection(vm);
int result = dlg->execute();
delete dlg;
return result;
}
CopyProtection::CopyProtection(XeenEngine *vm) : Input(vm, &(*vm->_windows)[11]) {
loadEntries();
}
bool CopyProtection::execute() {
EventsManager &events = *_vm->_events;
Sound &sound = *_vm->_sound;
Window &w = *_window;
bool result = false;
Common::String line;
// Choose a random entry
ProtectionEntry &protEntry = _entries[_vm->getRandomNumber(_entries.size() - 1)];
Common::String msg = Common::String::format(Res.WHATS_THE_PASSWORD,
protEntry._pageNum, protEntry._lineNum, protEntry._wordNum);
w.open();
w.writeString(msg);
w.update();
for (int tryNum = 0; tryNum < 3 && !_vm->shouldExit(); ++tryNum) {
line.clear();
if (getString(line, 20, 200, false) && !line.compareToIgnoreCase(protEntry._text)) {
sound.playFX(20);
result = true;
break;
}
sound.playFX(21);
w.writeString("\x3l\v040\n\x4""200");
w.writeString(Res.PASSWORD_INCORRECT);
w.update();
events.updateGameCounter();
events.wait(50, false);
}
w.close();
return result;
}
void CopyProtection::loadEntries() {
FileManager &files = *g_vm->_files;
File f(files._ccNum ? "timer.drv" : "cpstruct");
ProtectionEntry pe;
byte seed = 0;
char text[13];
while (f.pos() < f.size()) {
pe._pageNum = f.readByte() ^ seed++;
pe._lineNum = f.readByte() ^ seed++;
pe._wordNum = f.readByte() ^ seed++;
for (int idx = 0; idx < 13; ++idx)
text[idx] = f.readByte() ^ seed++;
text[12] = '\0';
pe._text = Common::String(text);
_entries.push_back(pe);
}
}
} // End of namespace Xeen
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