leakfile.cpp

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/*
===========================================================================

Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company. 

This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).  

Doom 3 Source Code 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 3 of the License, or
(at your option) any later version.

Doom 3 Source Code 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 Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

===========================================================================
*/

#include "../../../idlib/precompiled.h"
#pragma hdrstop

#include "dmap.h"

/*
==============================================================================

LEAF FILE GENERATION

Save out name.line for qe3 to read
==============================================================================
*/


/*
=============
LeakFile

Finds the shortest possible chain of portals
that leads from the outside leaf to a specifically
occupied leaf
=============
*/
void LeakFile (tree_t *tree)
{
        idVec3  mid;
        FILE    *linefile;
        idStr   filename;
        idStr   ospath;
        node_t  *node;
        int             count;

        if (!tree->outside_node.occupied)
                return;

        common->Printf ("--- LeakFile ---\n");

        //
        // write the points to the file
        //
        sprintf( filename, "%s.lin", dmapGlobals.mapFileBase );
        ospath = fileSystem->RelativePathToOSPath( filename );
        linefile = fopen( ospath, "w" );
        if ( !linefile ) {
                common->Error( "Couldn't open %s\n", filename.c_str() );
        }

        count = 0;
        node = &tree->outside_node;
        while (node->occupied > 1)
        {
                int                     next;
                uPortal_t       *p, *nextportal;
                node_t          *nextnode;
                int                     s;

                // find the best portal exit
                next = node->occupied;
                for (p=node->portals ; p ; p = p->next[!s])
                {
                        s = (p->nodes[0] == node);
                        if (p->nodes[s]->occupied
                                && p->nodes[s]->occupied < next)
                        {
                                nextportal = p;
                                nextnode = p->nodes[s];
                                next = nextnode->occupied;
                        }
                }
                node = nextnode;
                mid = nextportal->winding->GetCenter();
                fprintf (linefile, "%f %f %f\n", mid[0], mid[1], mid[2]);
                count++;
        }
        // add the occupant center
        node->occupant->mapEntity->epairs.GetVector( "origin", "", mid );

        fprintf (linefile, "%f %f %f\n", mid[0], mid[1], mid[2]);
        common->Printf ("%5i point linefile\n", count+1);

        fclose (linefile);
}