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https://github.com/dhewm/dhewm3.git
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736ec20d4d
Don't include the lazy precompiled.h everywhere, only what's required for the compilation unit. platform.h needs to be included instead to provide all essential defines and types. All includes use the relative path to the neo or the game specific root. Move all idlib related includes from idlib/Lib.h to precompiled.h. precompiled.h still exists for the MFC stuff in tools/. Add some missing header guards.
239 lines
10 KiB
C++
239 lines
10 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 __BRUSHBSP_H__
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#define __BRUSHBSP_H__
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#include "idlib/containers/VectorSet.h"
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#include "idlib/containers/StrList.h"
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#include "idlib/geometry/Winding.h"
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#include "idlib/MapFile.h"
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#include "tools/compilers/aas/Brush.h"
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/*
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===============================================================================
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BrushBSP
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===============================================================================
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*/
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class idBrushBSP;
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class idBrushBSPNode;
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class idBrushBSPPortal;
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//===============================================================
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//
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// idBrushBSPPortal
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//
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//===============================================================
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class idBrushBSPPortal {
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friend class idBrushBSP;
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friend class idBrushBSPNode;
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public:
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idBrushBSPPortal( void );
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~idBrushBSPPortal( void );
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void AddToNodes( idBrushBSPNode *front, idBrushBSPNode *back );
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void RemoveFromNode( idBrushBSPNode *l );
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void Flip( void );
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int Split( const idPlane &splitPlane, idBrushBSPPortal **front, idBrushBSPPortal **back );
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idWinding * GetWinding( void ) const { return winding; }
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const idPlane & GetPlane( void ) const { return plane; }
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void SetFaceNum( int num ) { faceNum = num; }
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int GetFaceNum( void ) const { return faceNum; }
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int GetFlags( void ) const { return flags; }
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void SetFlag( int flag ) { flags |= flag; }
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void RemoveFlag( int flag ) { flags &= ~flag; }
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idBrushBSPPortal * Next( int side ) const { return next[side]; }
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idBrushBSPNode * GetNode( int side ) const { return nodes[side]; }
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private:
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idPlane plane; // portal plane
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int planeNum; // number of plane this portal is on
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idWinding * winding; // portal winding
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idBrushBSPNode * nodes[2]; // nodes this portal seperates
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idBrushBSPPortal * next[2]; // next portal in list for both nodes
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int flags; // portal flags
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int faceNum; // number of the face created for this portal
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};
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//===============================================================
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//
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// idBrushBSPNode
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//
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//===============================================================
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#define NODE_VISITED BIT(30)
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#define NODE_DONE BIT(31)
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class idBrushBSPNode {
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friend class idBrushBSP;
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friend class idBrushBSPPortal;
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public:
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idBrushBSPNode( void );
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~idBrushBSPNode( void );
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void SetContentsFromBrushes( void );
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idBounds GetPortalBounds( void );
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idBrushBSPNode * GetChild( int index ) const { return children[index]; }
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idBrushBSPNode * GetParent( void ) const { return parent; }
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void SetContents( int contents ) { this->contents = contents; }
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int GetContents( void ) const { return contents; }
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const idPlane & GetPlane( void ) const { return plane; }
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idBrushBSPPortal * GetPortals( void ) const { return portals; }
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void SetAreaNum( int num ) { areaNum = num; }
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int GetAreaNum( void ) const { return areaNum; }
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int GetFlags( void ) const { return flags; }
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void SetFlag( int flag ) { flags |= flag; }
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void RemoveFlag( int flag ) { flags &= ~flag; }
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bool TestLeafNode( void );
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// remove the flag from nodes found by flooding through portals to nodes with the flag set
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void RemoveFlagFlood( int flag );
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// recurse down the tree and remove the flag from all visited nodes
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void RemoveFlagRecurse( int flag );
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// first recurse down the tree and flood from there
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void RemoveFlagRecurseFlood( int flag );
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// returns side of the plane the node is on
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int PlaneSide( const idPlane &plane, float epsilon = ON_EPSILON ) const;
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// split the leaf node with a plane
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bool Split( const idPlane &splitPlane, int splitPlaneNum );
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private:
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idPlane plane; // split plane if this is not a leaf node
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idBrush * volume; // node volume
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int contents; // node contents
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idBrushList brushList; // list with brushes for this node
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idBrushBSPNode * parent; // parent of this node
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idBrushBSPNode * children[2]; // both are NULL if this is a leaf node
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idBrushBSPPortal * portals; // portals of this node
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int flags; // node flags
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int areaNum; // number of the area created for this node
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int occupied; // true when portal is occupied
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};
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//===============================================================
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//
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// idBrushBSP
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//
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//===============================================================
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class idBrushBSP {
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public:
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idBrushBSP( void );
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~idBrushBSP( void );
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// build a bsp tree from a set of brushes
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void Build( idBrushList brushList, int skipContents,
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bool (*ChopAllowed)( idBrush *b1, idBrush *b2 ),
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bool (*MergeAllowed)( idBrush *b1, idBrush *b2 ) );
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// remove splits in subspaces with the given contents
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void PruneTree( int contents );
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// portalize the bsp tree
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void Portalize( void );
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// remove subspaces outside the map not reachable by entities
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bool RemoveOutside( const idMapFile *mapFile, int contents, const idStrList &classNames );
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// write file with a trace going through a leak
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void LeakFile( const idStr &fileName );
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// try to merge portals
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void MergePortals( int skipContents );
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// try to merge the two leaf nodes at either side of the portal
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bool TryMergeLeafNodes( idBrushBSPPortal *portal, int side );
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void PruneMergedTree_r( idBrushBSPNode *node );
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// melt portal windings
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void MeltPortals( int skipContents );
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// write a map file with a brush for every leaf node that has the given contents
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void WriteBrushMap( const idStr &fileName, const idStr &ext, int contents );
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// bounds for the whole tree
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const idBounds & GetTreeBounds( void ) const { return treeBounds; }
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// root node of the tree
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idBrushBSPNode * GetRootNode( void ) const { return root; }
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private:
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idBrushBSPNode * root;
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idBrushBSPNode * outside;
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idBounds treeBounds;
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idPlaneSet portalPlanes;
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int numGridCells;
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int numSplits;
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int numGridCellSplits;
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int numPrunedSplits;
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int numPortals;
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int solidLeafNodes;
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int outsideLeafNodes;
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int insideLeafNodes;
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int numMergedPortals;
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int numInsertedPoints;
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idVec3 leakOrigin;
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int brushMapContents;
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idBrushMap * brushMap;
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bool (*BrushChopAllowed)( idBrush *b1, idBrush *b2 );
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bool (*BrushMergeAllowed)( idBrush *b1, idBrush *b2 );
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private:
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void RemoveMultipleLeafNodeReferences_r( idBrushBSPNode *node );
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void Free_r( idBrushBSPNode *node );
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void IncreaseNumSplits( void );
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bool IsValidSplitter( const idBrushSide *side );
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int BrushSplitterStats( const idBrush *brush, int planeNum, const idPlaneSet &planeList, bool *testedPlanes, struct splitterStats_s &stats );
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int FindSplitter( idBrushBSPNode *node, const idPlaneSet &planeList, bool *testedPlanes, struct splitterStats_s &bestStats );
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void SetSplitterUsed( idBrushBSPNode *node, int planeNum );
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idBrushBSPNode * BuildBrushBSP_r( idBrushBSPNode *node, const idPlaneSet &planeList, bool *testedPlanes, int skipContents );
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idBrushBSPNode * ProcessGridCell( idBrushBSPNode *node, int skipContents );
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void BuildGrid_r( idList<idBrushBSPNode *> &gridCells, idBrushBSPNode *node );
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void PruneTree_r( idBrushBSPNode *node, int contents );
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void MakeOutsidePortals( void );
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idWinding * BaseWindingForNode( idBrushBSPNode *node );
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void MakeNodePortal( idBrushBSPNode *node );
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void SplitNodePortals( idBrushBSPNode *node );
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void MakeTreePortals_r( idBrushBSPNode *node );
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void FloodThroughPortals_r( idBrushBSPNode *node, int contents, int depth );
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bool FloodFromOrigin( const idVec3 &origin, int contents );
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bool FloodFromEntities( const idMapFile *mapFile, int contents, const idStrList &classNames );
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void RemoveOutside_r( idBrushBSPNode *node, int contents );
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void SetPortalPlanes_r( idBrushBSPNode *node, idPlaneSet &planeList );
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void SetPortalPlanes( void );
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void MergePortals_r( idBrushBSPNode *node, int skipContents );
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void MergeLeafNodePortals( idBrushBSPNode *node, int skipContents );
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void UpdateTreeAfterMerge_r( idBrushBSPNode *node, const idBounds &bounds, idBrushBSPNode *oldNode, idBrushBSPNode *newNode );
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void RemoveLeafNodeColinearPoints( idBrushBSPNode *node );
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void RemoveColinearPoints_r( idBrushBSPNode *node, int skipContents );
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void MeltFlood_r( idBrushBSPNode *node, int skipContents, idBounds &bounds, idVectorSet<idVec3,3> &vertexList );
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void MeltLeafNodePortals( idBrushBSPNode *node, int skipContents, idVectorSet<idVec3,3> &vertexList );
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void MeltPortals_r( idBrushBSPNode *node, int skipContents, idVectorSet<idVec3,3> &vertexList );
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};
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#endif /* !__BRUSHBSP_H__ */
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