95 lines
3.2 KiB
C++
95 lines
3.2 KiB
C++
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/* 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 "lab/stddefines.h"
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#include "lab/labfun.h"
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#include "lab/storage.h"
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namespace Lab {
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const uint32 LargeSetSIZE = sizeof(LargeSetRecord) - 2;
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/*****************************************************************************/
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/* Creates a large set. */
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/*****************************************************************************/
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bool createSet(LargeSet *set, uint16 last) {
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last = (((last + 15) >> 4) << 4);
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if (allocate((void **) set, (last >> 3) + LargeSetSIZE)) {
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(*set)->lastElement = last;
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return true;
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} else /* Not Enough Memory! */
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return false;
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}
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/*****************************************************************************/
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/* Deletes a large set. */
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/*****************************************************************************/
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void deleteSet(LargeSet set) {
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if (set != NULL)
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deallocate(set, (set->lastElement >> 3) + LargeSetSIZE);
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}
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/*****************************************************************************/
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/* Tests if an element is in the set. */
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/*****************************************************************************/
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bool In(LargeSet set, uint16 element) {
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return ((1 << ((element - 1) % 16)) & (set->array[(element - 1) >> 4])) > 0;
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}
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/*****************************************************************************/
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/* Sets an element in the Large set. */
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/*****************************************************************************/
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void inclElement(LargeSet set, uint16 element) {
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INCL((set->array[(element - 1) >> 4]), (1 << ((element - 1) % 16)));
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}
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/*****************************************************************************/
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/* Removes an element in the Large set. */
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/*****************************************************************************/
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void exclElement(LargeSet set, uint16 element) {
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EXCL((set->array[(element - 1) >> 4]), (1 << ((element - 1) % 16)));
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}
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} // End of namespace Lab
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