OgreNode.h

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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004     (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://www.ogre3d.org/
00006 
00007 Copyright (c) 2000-2006 Torus Knot Software Ltd
00008 Also see acknowledgements in Readme.html
00009 
00010 This program is free software; you can redistribute it and/or modify it under
00011 the terms of the GNU Lesser General Public License as published by the Free Software
00012 Foundation; either version 2 of the License, or (at your option) any later
00013 version.
00014 
00015 This program is distributed in the hope that it will be useful, but WITHOUT
00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
00018 
00019 You should have received a copy of the GNU Lesser General Public License along with
00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
00022 http://www.gnu.org/copyleft/lesser.txt.
00023 
00024 You may alternatively use this source under the terms of a specific version of
00025 the OGRE Unrestricted License provided you have obtained such a license from
00026 Torus Knot Software Ltd.
00027 -----------------------------------------------------------------------------
00028 */
00029 #ifndef _Node_H__
00030 #define _Node_H__
00031 
00032 #include "OgrePrerequisites.h"
00033 
00034 #include "OgreMatrix3.h"
00035 #include "OgreMatrix4.h"
00036 #include "OgreQuaternion.h"
00037 #include "OgreString.h"
00038 #include "OgreRenderable.h"
00039 #include "OgreIteratorWrappers.h"
00040 
00041 namespace Ogre {
00042 
00043 
00054     class _OgreExport Node : public Renderable, public NodeAlloc
00055     {
00056     public:
00059         enum TransformSpace
00060         {
00062             TS_LOCAL,
00064             TS_PARENT,
00066             TS_WORLD
00067         };
00068         typedef HashMap<String, Node*> ChildNodeMap;
00069         typedef MapIterator<ChildNodeMap> ChildNodeIterator;
00070         typedef ConstMapIterator<ChildNodeMap> ConstChildNodeIterator;
00071 
00074         class _OgreExport Listener
00075         {
00076         public:
00077             Listener() {}
00078             virtual ~Listener() {}
00086             virtual void nodeUpdated(const Node*) {}
00088             virtual void nodeDestroyed(const Node*) {};
00090             virtual void nodeAttached(const Node*) {};
00092             virtual void nodeDetached(const Node*) {};
00093         };
00094 
00095     protected:
00097         Node* mParent;
00099         ChildNodeMap mChildren;
00100 
00101         typedef std::set<Node*> ChildUpdateSet;
00103         mutable ChildUpdateSet mChildrenToUpdate;
00105         mutable bool mNeedParentUpdate;
00107         mutable bool mNeedChildUpdate;
00109         mutable bool mParentNotified ;
00111         mutable bool mQueuedForUpdate;
00112 
00114         String mName;
00115 
00117         static unsigned long msNextGeneratedNameExt;
00118 
00120         Quaternion mOrientation;
00121 
00123         Vector3 mPosition;
00124 
00126         Vector3 mScale;
00127 
00129         bool mInheritOrientation;
00130 
00132         bool mInheritScale;
00133 
00135         mutable MaterialPtr mpMaterial;
00136 
00138         virtual void setParent(Node* parent);
00139 
00147         mutable Quaternion mDerivedOrientation;
00148 
00156         mutable Vector3 mDerivedPosition;
00157 
00165         mutable Vector3 mDerivedScale;
00166 
00173         virtual void _updateFromParent(void) const;
00174 
00181         virtual void updateFromParentImpl(void) const;
00182 
00183 
00185         virtual Node* createChildImpl(void) = 0;
00186 
00188         virtual Node* createChildImpl(const String& name) = 0;
00189 
00191         Vector3 mInitialPosition;
00193         Quaternion mInitialOrientation;
00195         Vector3 mInitialScale;
00196 
00198         mutable Matrix4 mCachedTransform;
00199         mutable bool mCachedTransformOutOfDate;
00200 
00202         Listener* mListener;
00203 
00204         typedef std::vector<Node*> QueuedUpdates;
00205         static QueuedUpdates msQueuedUpdates;
00206 
00207 
00208     public:
00213         Node();
00218         Node(const String& name);
00219 
00220         virtual ~Node();  
00221 
00223         const String& getName(void) const;
00224 
00227         virtual Node* getParent(void) const;
00228 
00231         virtual const Quaternion & getOrientation() const;
00232 
00246         virtual void setOrientation( const Quaternion& q );
00247 
00261         virtual void setOrientation( Real w, Real x, Real y, Real z);
00262 
00276         virtual void resetOrientation(void);
00277 
00280         virtual void setPosition(const Vector3& pos);
00281 
00284         virtual void setPosition(Real x, Real y, Real z);
00285 
00288         virtual const Vector3 & getPosition(void) const;
00289 
00302         virtual void setScale(const Vector3& scale);
00303 
00316         virtual void setScale(Real x, Real y, Real z);
00317 
00320         virtual const Vector3 & getScale(void) const;
00321 
00335         virtual void setInheritOrientation(bool inherit);
00336 
00350         virtual bool getInheritOrientation(void) const;
00351 
00364         virtual void setInheritScale(bool inherit);
00365 
00370         virtual bool getInheritScale(void) const;
00371 
00381         virtual void scale(const Vector3& scale);
00382 
00392         virtual void scale(Real x, Real y, Real z);
00393 
00403         virtual void translate(const Vector3& d, TransformSpace relativeTo = TS_PARENT);
00417         virtual void translate(Real x, Real y, Real z, TransformSpace relativeTo = TS_PARENT);
00437         virtual void translate(const Matrix3& axes, const Vector3& move, TransformSpace relativeTo = TS_PARENT);
00457         virtual void translate(const Matrix3& axes, Real x, Real y, Real z, TransformSpace relativeTo = TS_PARENT);
00458 
00461         virtual void roll(const Radian& angle, TransformSpace relativeTo = TS_LOCAL);
00462 
00465         virtual void pitch(const Radian& angle, TransformSpace relativeTo = TS_LOCAL);
00466 
00469         virtual void yaw(const Radian& angle, TransformSpace relativeTo = TS_LOCAL);
00470 
00473         virtual void rotate(const Vector3& axis, const Radian& angle, TransformSpace relativeTo = TS_LOCAL);
00474 
00477         virtual void rotate(const Quaternion& q, TransformSpace relativeTo = TS_LOCAL);
00478 
00481         virtual Matrix3 getLocalAxes(void) const;
00482 
00489         virtual Node* createChild(
00490             const Vector3& translate = Vector3::ZERO, 
00491             const Quaternion& rotate = Quaternion::IDENTITY );
00492 
00502         virtual Node* createChild(const String& name, const Vector3& translate = Vector3::ZERO, const Quaternion& rotate = Quaternion::IDENTITY);
00503 
00508         virtual void addChild(Node* child);
00509 
00512         virtual unsigned short numChildren(void) const;
00513 
00518         virtual Node* getChild(unsigned short index) const;    
00519 
00522         virtual Node* getChild(const String& name) const;
00523 
00534         virtual ChildNodeIterator getChildIterator(void);
00535 
00546         virtual ConstChildNodeIterator getChildIterator(void) const;
00547 
00555         virtual Node* removeChild(unsigned short index);
00563         virtual Node* removeChild(Node* child);
00564 
00570         virtual Node* removeChild(const String& name);
00574         virtual void removeAllChildren(void);
00575 
00578         virtual const Quaternion & _getDerivedOrientation(void) const;
00579 
00582         virtual const Vector3 & _getDerivedPosition(void) const;
00583 
00586         virtual const Vector3 & _getDerivedScale(void) const;
00587 
00597         virtual const Matrix4& _getFullTransform(void) const;
00598 
00611         virtual void _update(bool updateChildren, bool parentHasChanged);
00612 
00618         virtual void setListener(Listener* listener) { mListener = listener; }
00619         
00622         virtual Listener* getListener(void) const { return mListener; }
00623         
00630         const MaterialPtr& getMaterial(void) const;
00637         void getRenderOperation(RenderOperation& op);
00644         void getWorldTransforms(Matrix4* xform) const;
00645 
00656         virtual void setInitialState(void);
00657 
00659         virtual void resetToInitialState(void);
00660 
00665         virtual const Vector3& getInitialPosition(void) const;
00666 
00668         virtual const Quaternion& getInitialOrientation(void) const;
00669 
00671         virtual const Vector3& getInitialScale(void) const;
00672 
00674         Real getSquaredViewDepth(const Camera* cam) const;
00675 
00683         virtual void needUpdate(bool forceParentUpdate = false);
00688         virtual void requestUpdate(Node* child, bool forceParentUpdate = false);
00690         virtual void cancelUpdate(Node* child);
00691 
00699         static void queueNeedUpdate(Node* n);
00701         static void processQueuedUpdates(void);
00702 
00704         const LightList& getLights(void) const;
00705 
00706 
00707 
00708     };
00709 
00710 } //namespace
00711 
00712 #endif

Copyright © 2008 Torus Knot Software Ltd
Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Sep 27 22:02:24 2009