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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/stddefines.h"
#include "lab/labfun.h"
namespace Lab {
LargeSet::LargeSet(uint16 last) {
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) {
byte *file;
uint16 many, set;
char temp[5];
if ((file = g_music->newOpen(fileName)) != NULL) {
memcpy(&temp, file, 4); file += 4;
temp[4] = '\0';
if (strcmp(temp, "CON0") != 0)
return false;
memcpy(&many, file, 2); file += 2;
swapUShortPtr(&many, 1);
for (int counter = 0; counter < many; counter++) {
memcpy(&set, file, 2); file += 2;
swapUShortPtr(&set, 1);
inclElement(set);
}
} else
return false;
return true;
}
} // End of namespace Lab
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