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81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
/*
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===========================================================================
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Doom 3 GPL Source Code
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Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
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Doom 3 Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Doom 3 Source Code 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 Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
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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.
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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.
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===========================================================================
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*/
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#ifndef __PLANESET_H__
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#define __PLANESET_H__
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/*
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===============================================================================
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Plane Set
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===============================================================================
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*/
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class idPlaneSet : public idList<idPlane> {
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public:
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void Clear( void ) { idList<idPlane>::Clear(); hash.Free(); }
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int FindPlane( const idPlane &plane, const float normalEps, const float distEps );
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private:
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idHashIndex hash;
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};
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ID_INLINE int idPlaneSet::FindPlane( const idPlane &plane, const float normalEps, const float distEps ) {
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int i, border, hashKey;
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assert( distEps <= 0.125f );
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hashKey = (int)( idMath::Fabs( plane.Dist() ) * 0.125f );
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for ( border = -1; border <= 1; border++ ) {
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for ( i = hash.First( hashKey + border ); i >= 0; i = hash.Next( i ) ) {
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if ( (*this)[i].Compare( plane, normalEps, distEps ) ) {
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return i;
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}
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}
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}
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if ( plane.Type() >= PLANETYPE_NEGX && plane.Type() < PLANETYPE_TRUEAXIAL ) {
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Append( -plane );
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hash.Add( hashKey, Num()-1 );
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Append( plane );
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hash.Add( hashKey, Num()-1 );
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return ( Num() - 1 );
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}
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else {
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Append( plane );
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hash.Add( hashKey, Num()-1 );
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Append( -plane );
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hash.Add( hashKey, Num()-1 );
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return ( Num() - 2 );
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}
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}
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#endif /* !__PLANESET_H__ */
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