153 lines
4.6 KiB
C
153 lines
4.6 KiB
C
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/****************************************************************************
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Copyright (c) 2010,Radon Labs GmbH
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __viscell_H__
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#define __viscell_H__
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#include "core/refcounted.h"
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#include "math/bbox.h"
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#include "vis/visentity.h"
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#include "vis/observercontext.h"
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#include "util/stl.h"
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//------------------------------------------------------------------------------
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namespace Vis
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{
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class VisCell : public Core::RefCounted
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{
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__DeclareClass(VisCell);
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public:
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/// constructor
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VisCell();
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/// destructor
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virtual ~VisCell();
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/// called when attached to visibility system
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virtual void OnAttach();
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/// called when removed visibility system
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virtual void OnRemove();
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/// set the VisCell's world space bounding box
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void SetBoundingBox(const Math::bbox& box);
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/// get the VisCell's world space transform
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const Math::bbox& GetBoundingBox() const;
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/// add a child cell (only during setup phase)
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void AttachChildCell(const GPtr<VisCell>& cell);
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/// get pointer to parent cell (returns invalid pointer if this is root cell)
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const GPtr<VisCell>& GetParentCell() const;
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/// get current child cells
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const Util::Array<GPtr<VisCell> >& GetChildCells() const;
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/// insert an entity into the VisCell hierarchy, return found child cell
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VisCell* InsertEntity(const GPtr<VisEntity>& ent);
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/// attach a visibility entity to this VisCell
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void AttachEntity(const GPtr<VisEntity>& ent);
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/// remove a visibility entity from this VisCell
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void RemoveEntity(const GPtr<VisEntity>& ent);
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/// starting from this cell, find smallest containment cell in cell tree
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VisCell* FindEntityContainmentCell(const GPtr<VisEntity>& entity);
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// <20>õ<EFBFBD><C3B5><EFBFBD>cell<6C><6C>childcell<6C><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>entity<74><79><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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SizeT GetNumEntitiesInHierarchy(void) const;
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/// recursively collect all visible entity
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void QueryVisibleEntities(const GPtr<ObserverContext>& observerContext, Util::Array<GPtr<VisEntity> >& visibilityEntities ) const;
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protected:
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/// create links between visible entities
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void RecurseCollectVisibleEntities(const GPtr<ObserverContext>& observerContext, Util::Array<GPtr<VisEntity> >& visibilityEntities, Math::ClipStatus::Type clipStatus) const;
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void UpdateNumEntitiesInHierarchy(int num);
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GPtr<VisCell> mParentCell;
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Math::bbox mBoundingBox;
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Util::Array<GPtr<VisCell> > mChildCells;
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typedef Util::STL_list< GPtr<VisEntity> >::type EntityList;
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EntityList mEntities;
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SizeT mNumEntitiesInHierarchy; // in clude child cell.
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};
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//------------------------------------------------------------------------------
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/**
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*/
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inline
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void
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VisCell::SetBoundingBox(const Math::bbox& box)
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{
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this->mBoundingBox = box;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline
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const Math::bbox&
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VisCell::GetBoundingBox() const
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{
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return this->mBoundingBox;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline
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const GPtr<VisCell>&
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VisCell::GetParentCell() const
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{
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return this->mParentCell;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline
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const Util::Array<GPtr<VisCell> >&
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VisCell::GetChildCells() const
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{
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return this->mChildCells;
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}
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//------------------------------------------------------------------------
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inline
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SizeT
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VisCell::GetNumEntitiesInHierarchy(void) const
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{
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return mNumEntitiesInHierarchy;
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}
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} // namespace InternalGraphics
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//------------------------------------------------------------------------------
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#endif // __viscell_H__
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