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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.
*
*/
/*
* This code is based on Labyrinth of Time code with assistance of
*
* Copyright (c) 1993 Terra Nova Development
* Copyright (c) 2004 The Wyrmkeep Entertainment Co.
*
*/
#include "lab/lab.h"
#include "lab/labfun.h"
#include "lab/resource.h"
namespace Lab {
LargeSet::LargeSet(uint16 last, LabEngine *vm) : _vm(vm) {
last = (((last + 15) >> 4) << 4);
_array = (uint16 *)calloc(last >> 3, 2);
_lastElement = last;
}
LargeSet::~LargeSet() {
free(_array);
}
bool LargeSet::in(uint16 element) {
return ((1 << ((element - 1) % 16)) & (_array[(element - 1) >> 4])) > 0;
}
void LargeSet::inclElement(uint16 element) {
_array[(element - 1) >> 4] |= 1 << ((element - 1) % 16);
}
void LargeSet::exclElement(uint16 element) {
_array[(element - 1) >> 4] &= ~(1 << ((element - 1) % 16));
}
bool LargeSet::readInitialConditions(const char *fileName) {
Common::File *file;
if ((file = _vm->_resource->openDataFile(fileName, MKTAG('C', 'O', 'N', '0')))) {
uint16 conditions = file->readUint16LE();
for (int i = 0; i < conditions; i++) {
inclElement(file->readUint16LE());
}
delete file;
return true;
}
return false;
}
} // End of namespace Lab
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