mirror of
https://github.com/dhewm/dhewm3.git
synced 2024-11-30 16:11:11 +00:00
233 lines
9.8 KiB
C++
233 lines
9.8 KiB
C++
/*
|
|
===========================================================================
|
|
|
|
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.
|
|
|
|
===========================================================================
|
|
*/
|
|
|
|
#ifndef __BRUSHBSP_H__
|
|
#define __BRUSHBSP_H__
|
|
|
|
/*
|
|
===============================================================================
|
|
|
|
BrushBSP
|
|
|
|
===============================================================================
|
|
*/
|
|
|
|
class idBrushBSP;
|
|
class idBrushBSPNode;
|
|
class idBrushBSPPortal;
|
|
|
|
|
|
//===============================================================
|
|
//
|
|
// idBrushBSPPortal
|
|
//
|
|
//===============================================================
|
|
|
|
class idBrushBSPPortal {
|
|
|
|
friend class idBrushBSP;
|
|
friend class idBrushBSPNode;
|
|
|
|
public:
|
|
idBrushBSPPortal( void );
|
|
~idBrushBSPPortal( void );
|
|
void AddToNodes( idBrushBSPNode *front, idBrushBSPNode *back );
|
|
void RemoveFromNode( idBrushBSPNode *l );
|
|
void Flip( void );
|
|
int Split( const idPlane &splitPlane, idBrushBSPPortal **front, idBrushBSPPortal **back );
|
|
idWinding * GetWinding( void ) const { return winding; }
|
|
const idPlane & GetPlane( void ) const { return plane; }
|
|
void SetFaceNum( int num ) { faceNum = num; }
|
|
int GetFaceNum( void ) const { return faceNum; }
|
|
int GetFlags( void ) const { return flags; }
|
|
void SetFlag( int flag ) { flags |= flag; }
|
|
void RemoveFlag( int flag ) { flags &= ~flag; }
|
|
idBrushBSPPortal * Next( int side ) const { return next[side]; }
|
|
idBrushBSPNode * GetNode( int side ) const { return nodes[side]; }
|
|
|
|
private:
|
|
idPlane plane; // portal plane
|
|
int planeNum; // number of plane this portal is on
|
|
idWinding * winding; // portal winding
|
|
idBrushBSPNode * nodes[2]; // nodes this portal seperates
|
|
idBrushBSPPortal * next[2]; // next portal in list for both nodes
|
|
int flags; // portal flags
|
|
int faceNum; // number of the face created for this portal
|
|
};
|
|
|
|
|
|
//===============================================================
|
|
//
|
|
// idBrushBSPNode
|
|
//
|
|
//===============================================================
|
|
|
|
#define NODE_VISITED BIT(30)
|
|
#define NODE_DONE BIT(31)
|
|
|
|
class idBrushBSPNode {
|
|
|
|
friend class idBrushBSP;
|
|
friend class idBrushBSPPortal;
|
|
|
|
public:
|
|
idBrushBSPNode( void );
|
|
~idBrushBSPNode( void );
|
|
void SetContentsFromBrushes( void );
|
|
idBounds GetPortalBounds( void );
|
|
idBrushBSPNode * GetChild( int index ) const { return children[index]; }
|
|
idBrushBSPNode * GetParent( void ) const { return parent; }
|
|
void SetContents( int contents ) { this->contents = contents; }
|
|
int GetContents( void ) const { return contents; }
|
|
const idPlane & GetPlane( void ) const { return plane; }
|
|
idBrushBSPPortal * GetPortals( void ) const { return portals; }
|
|
void SetAreaNum( int num ) { areaNum = num; }
|
|
int GetAreaNum( void ) const { return areaNum; }
|
|
int GetFlags( void ) const { return flags; }
|
|
void SetFlag( int flag ) { flags |= flag; }
|
|
void RemoveFlag( int flag ) { flags &= ~flag; }
|
|
bool TestLeafNode( void );
|
|
// remove the flag from nodes found by flooding through portals to nodes with the flag set
|
|
void RemoveFlagFlood( int flag );
|
|
// recurse down the tree and remove the flag from all visited nodes
|
|
void RemoveFlagRecurse( int flag );
|
|
// first recurse down the tree and flood from there
|
|
void RemoveFlagRecurseFlood( int flag );
|
|
// returns side of the plane the node is on
|
|
int PlaneSide( const idPlane &plane, float epsilon = ON_EPSILON ) const;
|
|
// split the leaf node with a plane
|
|
bool Split( const idPlane &splitPlane, int splitPlaneNum );
|
|
|
|
|
|
private:
|
|
idPlane plane; // split plane if this is not a leaf node
|
|
idBrush * volume; // node volume
|
|
int contents; // node contents
|
|
idBrushList brushList; // list with brushes for this node
|
|
idBrushBSPNode * parent; // parent of this node
|
|
idBrushBSPNode * children[2]; // both are NULL if this is a leaf node
|
|
idBrushBSPPortal * portals; // portals of this node
|
|
int flags; // node flags
|
|
int areaNum; // number of the area created for this node
|
|
int occupied; // true when portal is occupied
|
|
};
|
|
|
|
|
|
//===============================================================
|
|
//
|
|
// idBrushBSP
|
|
//
|
|
//===============================================================
|
|
|
|
class idBrushBSP {
|
|
|
|
public:
|
|
idBrushBSP( void );
|
|
~idBrushBSP( void );
|
|
// build a bsp tree from a set of brushes
|
|
void Build( idBrushList brushList, int skipContents,
|
|
bool (*ChopAllowed)( idBrush *b1, idBrush *b2 ),
|
|
bool (*MergeAllowed)( idBrush *b1, idBrush *b2 ) );
|
|
// remove splits in subspaces with the given contents
|
|
void PruneTree( int contents );
|
|
// portalize the bsp tree
|
|
void Portalize( void );
|
|
// remove subspaces outside the map not reachable by entities
|
|
bool RemoveOutside( const idMapFile *mapFile, int contents, const idStrList &classNames );
|
|
// write file with a trace going through a leak
|
|
void LeakFile( const idStr &fileName );
|
|
// try to merge portals
|
|
void MergePortals( int skipContents );
|
|
// try to merge the two leaf nodes at either side of the portal
|
|
bool TryMergeLeafNodes( idBrushBSPPortal *portal, int side );
|
|
void PruneMergedTree_r( idBrushBSPNode *node );
|
|
// melt portal windings
|
|
void MeltPortals( int skipContents );
|
|
// write a map file with a brush for every leaf node that has the given contents
|
|
void WriteBrushMap( const idStr &fileName, const idStr &ext, int contents );
|
|
// bounds for the whole tree
|
|
const idBounds & GetTreeBounds( void ) const { return treeBounds; }
|
|
// root node of the tree
|
|
idBrushBSPNode * GetRootNode( void ) const { return root; }
|
|
|
|
private:
|
|
idBrushBSPNode * root;
|
|
idBrushBSPNode * outside;
|
|
idBounds treeBounds;
|
|
idPlaneSet portalPlanes;
|
|
int numGridCells;
|
|
int numSplits;
|
|
int numGridCellSplits;
|
|
int numPrunedSplits;
|
|
int numPortals;
|
|
int solidLeafNodes;
|
|
int outsideLeafNodes;
|
|
int insideLeafNodes;
|
|
int numMergedPortals;
|
|
int numInsertedPoints;
|
|
idVec3 leakOrigin;
|
|
int brushMapContents;
|
|
idBrushMap * brushMap;
|
|
|
|
bool (*BrushChopAllowed)( idBrush *b1, idBrush *b2 );
|
|
bool (*BrushMergeAllowed)( idBrush *b1, idBrush *b2 );
|
|
|
|
private:
|
|
void RemoveMultipleLeafNodeReferences_r( idBrushBSPNode *node );
|
|
void Free_r( idBrushBSPNode *node );
|
|
void IncreaseNumSplits( void );
|
|
bool IsValidSplitter( const idBrushSide *side );
|
|
int BrushSplitterStats( const idBrush *brush, int planeNum, const idPlaneSet &planeList, bool *testedPlanes, struct splitterStats_s &stats );
|
|
int FindSplitter( idBrushBSPNode *node, const idPlaneSet &planeList, bool *testedPlanes, struct splitterStats_s &bestStats );
|
|
void SetSplitterUsed( idBrushBSPNode *node, int planeNum );
|
|
idBrushBSPNode * BuildBrushBSP_r( idBrushBSPNode *node, const idPlaneSet &planeList, bool *testedPlanes, int skipContents );
|
|
idBrushBSPNode * ProcessGridCell( idBrushBSPNode *node, int skipContents );
|
|
void BuildGrid_r( idList<idBrushBSPNode *> &gridCells, idBrushBSPNode *node );
|
|
void PruneTree_r( idBrushBSPNode *node, int contents );
|
|
void MakeOutsidePortals( void );
|
|
idWinding * BaseWindingForNode( idBrushBSPNode *node );
|
|
void MakeNodePortal( idBrushBSPNode *node );
|
|
void SplitNodePortals( idBrushBSPNode *node );
|
|
void MakeTreePortals_r( idBrushBSPNode *node );
|
|
void FloodThroughPortals_r( idBrushBSPNode *node, int contents, int depth );
|
|
bool FloodFromOrigin( const idVec3 &origin, int contents );
|
|
bool FloodFromEntities( const idMapFile *mapFile, int contents, const idStrList &classNames );
|
|
void RemoveOutside_r( idBrushBSPNode *node, int contents );
|
|
void SetPortalPlanes_r( idBrushBSPNode *node, idPlaneSet &planeList );
|
|
void SetPortalPlanes( void );
|
|
void MergePortals_r( idBrushBSPNode *node, int skipContents );
|
|
void MergeLeafNodePortals( idBrushBSPNode *node, int skipContents );
|
|
void UpdateTreeAfterMerge_r( idBrushBSPNode *node, const idBounds &bounds, idBrushBSPNode *oldNode, idBrushBSPNode *newNode );
|
|
void RemoveLeafNodeColinearPoints( idBrushBSPNode *node );
|
|
void RemoveColinearPoints_r( idBrushBSPNode *node, int skipContents );
|
|
void MeltFlood_r( idBrushBSPNode *node, int skipContents, idBounds &bounds, idVectorSet<idVec3,3> &vertexList );
|
|
void MeltLeafNodePortals( idBrushBSPNode *node, int skipContents, idVectorSet<idVec3,3> &vertexList );
|
|
void MeltPortals_r( idBrushBSPNode *node, int skipContents, idVectorSet<idVec3,3> &vertexList );
|
|
};
|
|
|
|
#endif /* !__BRUSHBSP_H__ */
|