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Brian Harris
2012-11-26 12:58:24 -06:00
parent a5214f79ef
commit 5016f605b8
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neo/idlib/containers/PlaneSet.h Normal file
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/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
Doom 3 BFG Edition 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 BFG Edition 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 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 BFG Edition 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 BFG Edition 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.
===========================================================================
*/
#ifndef __PLANESET_H__
#define __PLANESET_H__
/*
===============================================================================
Plane Set
===============================================================================
*/
class idPlaneSet : public idList<idPlane> {
public:
void Clear() { idList<idPlane>::Clear(); hash.Free(); }
int FindPlane( const idPlane &plane, const float normalEps, const float distEps );
private:
idHashIndex hash;
};
ID_INLINE int idPlaneSet::FindPlane( const idPlane &plane, const float normalEps, const float distEps ) {
int i, border, hashKey;
assert( distEps <= 0.125f );
hashKey = (int)( idMath::Fabs( plane.Dist() ) * 0.125f );
for ( border = -1; border <= 1; border++ ) {
for ( i = hash.First( hashKey + border ); i >= 0; i = hash.Next( i ) ) {
if ( (*this)[i].Compare( plane, normalEps, distEps ) ) {
return i;
}
}
}
if ( plane.Type() >= PLANETYPE_NEGX && plane.Type() < PLANETYPE_TRUEAXIAL ) {
Append( -plane );
hash.Add( hashKey, Num()-1 );
Append( plane );
hash.Add( hashKey, Num()-1 );
return ( Num() - 1 );
}
else {
Append( plane );
hash.Add( hashKey, Num()-1 );
Append( -plane );
hash.Add( hashKey, Num()-1 );
return ( Num() - 2 );
}
}
#endif /* !__PLANESET_H__ */