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Source release of Wolfenstein 3D Classic Platinum for iOS, 1.0
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170
wolf3d/newCode/wolf/wolf_areas.c
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170
wolf3d/newCode/wolf/wolf_areas.c
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/*
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Copyright (C) 2004 Michael Liebscher
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Copyright (C) 2000-2002 by DarkOne the Hacker
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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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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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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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* wolf_areas.c: Wolfenstein3-D area management.
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*
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* Author: Michael Liebscher <johnnycanuck@users.sourceforge.net>
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* Date: 2004
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*
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* Acknowledgement:
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* Portion of this code was derived from NewWolf, and was originally
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* written by DarkOne the Hacker.
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*
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* Acknowledgement:
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* Portion of this code was derived from Wolfenstein3-D, and was originally
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* written by Id Software, Inc.
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*
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*/
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/*
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Notes:
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Open doors connect two areas, so sounds will travel between them and sight
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will be checked when the player is in a connected area.
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Areaconnect is incremented/decremented by each door. If >0 they connect.
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Every time a door opens or closes the areabyplayer matrix gets recalculated.
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An area is true if it connects with the player's current spor.
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*/
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#include "../wolfiphone.h"
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W8 areaconnect[ NUMAREAS ][ NUMAREAS ];
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_boolean areabyplayer[ NUMAREAS ];
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/*
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-----------------------------------------------------------------------------
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Function: Areas_RecursiveConnect() -Scans outward from playerarea,
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marking all connected areas.
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Parameters: areanumber -[in] area.
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Returns: Nothing.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PRIVATE void Areas_RecursiveConnect( int areanumber )
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{
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int i;
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for( i = 0 ; i < NUMAREAS ; ++i )
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{
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if( areaconnect[ areanumber ][ i ] && ! areabyplayer[ i ] )
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{
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areabyplayer[ i ] = true;
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Areas_RecursiveConnect( i );
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}
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}
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}
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/*
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-----------------------------------------------------------------------------
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Function: Areas_ConnectAreas() -Connect area.
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Parameters: areanumber -[in] area.
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Returns: Nothing.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC void Areas_ConnectAreas( int areanumber )
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{
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int c = 0;
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int i;
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assert( areanumber < NUMAREAS );
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memset( areabyplayer, 0, sizeof( areabyplayer ) );
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areabyplayer[ areanumber ] = true;
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Areas_RecursiveConnect( areanumber );
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for ( i = 0 ; i < NUMAREAS ; i++ ) {
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if ( areabyplayer[i] ) {
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c++;
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}
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}
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}
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/*
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-----------------------------------------------------------------------------
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Function:
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Parameters:
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Returns:
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC void Areas_InitAreas( int areanumber )
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{
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memset( areaconnect, 0, sizeof( areaconnect ) );
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memset( areabyplayer, 0, sizeof( areabyplayer ) );
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areabyplayer[ areanumber ] = true;
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}
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/*
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-----------------------------------------------------------------------------
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Function:
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Parameters:
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Returns:
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC void Areas_JoinAreas( int area1, int area2 )
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{// FIXME: check for overflow!
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areaconnect[ area1 ][ area2 ]++;
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areaconnect[ area2 ][ area1 ]++;
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}
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/*
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-----------------------------------------------------------------------------
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Function:
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Parameters:
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Returns:
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC void Areas_DisconnectAreas( int area1, int area2 )
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{// FIXME: check for underflow!
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areaconnect[ area1 ][ area2 ]--;
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areaconnect[ area2 ][ area1 ]--;
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}
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