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bspbbox.h /* Copyright (C) 1998-2001 by Jorrit Tyberghein This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __CS_BSPBBOX_H__ #define __CS_BSPBBOX_H__ #include "csgeom/math3d.h" #include "csgeom/polyidx.h" #include "csgeom/poly3d.h" #include "csgeom/transfrm.h" #include "csengine/polyint.h" #include "csengine/pol2d.h" #include "csengine/treeobj.h" #include "csutil/csobject.h" class csPolyTreeBBox; class csPolygonTree; class csTransform; class csBox3; struct iVisibilityObject; struct iShadowCaster; class csBspPolygonFactory : public csPolygonIntFactory { virtual csPolygonInt* Create (); virtual void Init (csPolygonInt* pi); }; struct csVisObjInfo { iVisibilityObject* visobj; iShadowCaster* shadcast; csPolyTreeBBox* bbox; long last_movablenr; long last_shapenr; }; class csBspPolygon : public csPolygonInt { friend class csBspPolygonFactory; private: csPolyIndexed polygon; csPlane3 plane; csPolyTreeBBox* parent; csVisObjInfo* originator; public: CS_DECLARE_STATIC_CLASSVAR(poly_fact,GetPolygonFact,csBspPolygonFactory) CS_DECLARE_STATIC_CLASSVAR_REF(poly_pool,GetPolygonPool,csPolygonIntPool) void Dump(); private: csBspPolygon () { } public: virtual ~csBspPolygon () { } csPolyTreeBBox* GetParent () { return parent; } void SetParent (csPolyTreeBBox* par) { parent = par; } csVisObjInfo* GetOriginator () { return originator; } void SetOriginator (csVisObjInfo* org) { originator = org; } csPolyIndexed& GetPolygon () { return polygon; } virtual int GetVertexCount () { return polygon.GetVertexCount (); } virtual int* GetVertexIndices () { return polygon.GetVertexIndices (); } virtual csPolygonInt* GetUnsplitPolygon () { return NULL; } void SetPolyPlane (const csPlane3& pl) { plane = pl; } csPlane3* GetPolyPlane () { return &plane; } int Classify (const csPlane3& pl); int ClassifyX (float x); int ClassifyY (float y); int ClassifyZ (float z); void SplitWithPlane (csPolygonInt** front, csPolygonInt** back, const csPlane3& split_plane); void SplitWithPlaneX (csPolygonInt** front, csPolygonInt** back, float x); void SplitWithPlaneY (csPolygonInt** front, csPolygonInt** back, float y); void SplitWithPlaneZ (csPolygonInt** front, csPolygonInt** back, float z); int GetType () { return 3; } void Transform (const csTransform& trans); bool ClipToPlane (csPlane3* portal_plane, const csVector3& v_w2c, csVector3*& pverts, int& num_verts, bool cw = true); bool DoPerspective (const csTransform& trans, csVector3* source, int num_verts, csPolygon2D* dest, bool mirror); bool Overlaps (csPolygonInt* /*overlapped*/) { return false; } bool IntersectSegment (const csVector3& start, const csVector3& end, csVector3& isect, float* pr = NULL); }; class csPolyTreeBBox { private: csPolygonStub* first_stub; csVector3Array vertices; csVector3Array cam_vertices; csPolygonStub* base_stub; int camera_nr; csBox3 world_bbox; public: csPolyTreeBBox (); ~csPolyTreeBBox (); CS_DECLARE_STATIC_CLASSVAR(stub_pool,GetPolyStubPool,csPolygonStubPool) CS_DECLARE_STATIC_CLASSVAR(stub_fact,GetPolyStubFactory,csPolygonStubFactory) void RemoveFromTree (); void UnlinkStub (csPolygonStub* ps); void LinkStub (csPolygonStub* ps); const csBox3& GetWorldBoundingBox () { return world_bbox; } csPolygonStub* GetBaseStub () { return base_stub; } csVector3Array& GetVertices () { return vertices; } csVector3Array& GetCameraVertices () { return cam_vertices; } void Update (const csBox3& object_bbox, const csTransform& o2w, csVisObjInfo* vinf); void Update (const csBox3& world_bbox, csVisObjInfo* vinf); void AddPolygon (csPolygonInt* poly) { base_stub->GetPolygonArray ().AddPolygon (poly); ((csBspPolygon*)poly)->SetParent (this); } int GetPolygonCount () { return base_stub->GetPolygonCount (); } csPolygonInt* GetPolygon (int idx) { return base_stub->GetPolygonArray ().GetPolygon (idx); } csPolygonInt** GetPolygons () { return base_stub->GetPolygons (); } void World2Camera (const csTransform& trans, int cur_camera_nr); bool IsTransformed (int cur_camera_nr) { if (cur_camera_nr != camera_nr) return false; return (cam_vertices.GetVertexCount () == vertices.GetVertexCount ()); } void ClearTransform () { camera_nr = -1; } void SplitWithPlane (csPolygonStub* stub, csPolygonStub** stub_on, csPolygonStub** stub_front, csPolygonStub** stub_back, const csPlane3& plane); void SplitWithPlaneX (csPolygonStub* stub, csPolygonStub** stub_on, csPolygonStub** stub_front, csPolygonStub** stub_back, float x); void SplitWithPlaneY (csPolygonStub* stub, csPolygonStub** stub_on, csPolygonStub** stub_front, csPolygonStub** stub_back, float y); void SplitWithPlaneZ (csPolygonStub* stub, csPolygonStub** stub_on, csPolygonStub** stub_front, csPolygonStub** stub_back, float z); }; #endif // __CS_BSPBBOX_H__ Generated for Crystal Space by doxygen 1.2.5 written by Dimitri van Heesch, ©1997-2000