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78 lines
2.1 KiB
C++
78 lines
2.1 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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/*
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* This code is based on Labyrinth of Time code with assistance of
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*
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* Copyright (c) 1993 Terra Nova Development
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* Copyright (c) 2004 The Wyrmkeep Entertainment Co.
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*
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*/
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#include "common/file.h"
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#include "lab/lab.h"
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#include "lab/labsets.h"
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#include "lab/resource.h"
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namespace Lab {
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LargeSet::LargeSet(uint16 last, LabEngine *vm) : _vm(vm) {
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last = (((last + 15) >> 4) << 4);
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_array = new uint16[last >> 3];
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memset(_array, 0, last >> 3);
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_lastElement = last;
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}
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LargeSet::~LargeSet() {
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delete[] _array;
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}
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bool LargeSet::in(uint16 element) {
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return ((1 << ((element - 1) % 16)) & (_array[(element - 1) >> 4])) > 0;
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}
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void LargeSet::inclElement(uint16 element) {
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_array[(element - 1) >> 4] |= 1 << ((element - 1) % 16);
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}
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void LargeSet::exclElement(uint16 element) {
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_array[(element - 1) >> 4] &= ~(1 << ((element - 1) % 16));
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}
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bool LargeSet::readInitialConditions(const Common::String fileName) {
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Common::File *file = _vm->_resource->openDataFile(fileName, MKTAG('C', 'O', 'N', '0'));
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uint16 conditions = file->readUint16LE();
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for (int i = 0; i < conditions; i++) {
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inclElement(file->readUint16LE());
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}
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delete file;
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return true;
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}
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} // End of namespace Lab
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