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 © 2000-2002 The OGRE Team 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 */ 00025 #ifndef _Node_H__ 00026 #define _Node_H__ 00027 00028 #include "OgrePrerequisites.h" 00029 00030 #include "OgreMatrix3.h" 00031 #include "OgreMatrix4.h" 00032 #include "OgreQuaternion.h" 00033 #include "OgreAxisAlignedBox.h" 00034 #include "OgreString.h" 00035 #include "OgreRenderable.h" 00036 #include "OgreIteratorWrappers.h" 00037 00038 namespace Ogre { 00039 00050 class _OgreExport Node : public Renderable 00051 { 00052 public: 00053 typedef HashMap<String, Node*, _StringHash> ChildNodeMap; 00054 typedef MapIterator<ChildNodeMap> ChildNodeIterator; 00055 00056 protected: 00058 Node* mParent; 00060 ChildNodeMap mChildren; 00061 00062 typedef std::set<Node*> ChildUpdateSet; 00064 mutable ChildUpdateSet mChildrenToUpdate; 00066 mutable bool mNeedParentUpdate; 00068 mutable bool mNeedChildUpdate; 00070 mutable bool mParentNotified ; 00071 00073 String mName; 00074 00076 static unsigned long msNextGeneratedNameExt; 00077 00079 Quaternion mOrientation; 00080 00082 Vector3 mPosition; 00083 00085 Vector3 mScale; 00086 00088 bool mInheritScale; 00089 00091 void setParent(Node* parent); 00092 00100 mutable Quaternion mDerivedOrientation; 00101 00109 mutable Vector3 mDerivedPosition; 00110 00118 mutable Vector3 mDerivedScale; 00119 00126 virtual void _updateFromParent(void) const; 00127 00129 virtual Node* createChildImpl(void) = 0; 00130 00132 virtual Node* createChildImpl(const String& name) = 0; 00133 00140 void makeTransform( 00141 const Vector3& position, 00142 const Vector3& scale, 00143 const Quaternion& orientation, 00144 Matrix4& destMatrix ) const; 00145 00151 void makeInverseTransform( 00152 const Vector3& position, 00153 const Vector3& scale, 00154 const Quaternion& orientation, 00155 Matrix4& destMatrix ); 00156 00158 Vector3 mInitialPosition; 00160 Quaternion mInitialOrientation; 00162 Vector3 mInitialScale; 00163 00164 // Weight of applied animations so far, used for blending 00165 Real mAccumAnimWeight; 00166 // The total weighted translation from the initial state so far 00167 Vector3 mTransFromInitial; 00168 // The total weighted rotation from the initial state so far 00169 Quaternion mRotFromInitial; 00170 // The total weighted scale from the initial state so far 00171 Vector3 mScaleFromInitial; 00172 00174 mutable Matrix4 mCachedTransform; 00175 mutable bool mCachedTransformOutOfDate; 00176 00177 00178 public: 00183 Node(); 00188 Node(const String& name); 00189 00190 virtual ~Node(); 00191 00193 const String& getName(void) const; 00194 00197 virtual Node* getParent(void) const; 00198 00201 virtual const Quaternion & getOrientation() const; 00202 00205 virtual void setOrientation( const Quaternion& q ); 00206 00209 virtual void setOrientation( Real w, Real x, Real y, Real z); 00210 00213 virtual void resetOrientation(void); 00214 00217 virtual void setPosition(const Vector3& pos); 00218 00221 virtual void setPosition(Real x, Real y, Real z); 00222 00225 virtual const Vector3 & getPosition(void) const; 00226 00240 virtual void setScale(const Vector3& scale); 00241 00255 virtual void setScale(Real x, Real y, Real z); 00256 00259 virtual const Vector3 & getScale(void) const; 00260 00274 virtual void setInheritScale(bool inherit); 00275 00280 virtual bool getInheritScale(void) const; 00281 00291 virtual void scale(const Vector3& scale); 00292 00302 virtual void scale(Real x, Real y, Real z); 00303 00311 virtual void translate(const Vector3& d); 00323 virtual void translate(Real x, Real y, Real z); 00341 virtual void translate(const Matrix3& axes, const Vector3& move); 00359 virtual void translate(const Matrix3& axes, Real x, Real y, Real z); 00360 00363 virtual void roll(Real degrees); 00364 00367 virtual void pitch(Real degrees); 00368 00371 virtual void yaw(Real degrees); 00372 00375 virtual void rotate(const Vector3& axis, Real degrees); 00376 00379 virtual void rotate(const Quaternion& q); 00380 00383 virtual Matrix3 getLocalAxes(void) const; 00384 00391 virtual Node* createChild( 00392 const Vector3& translate = Vector3::ZERO, 00393 const Quaternion& rotate = Quaternion::IDENTITY ); 00394 00404 virtual Node* createChild(const String& name, const Vector3& translate = Vector3::ZERO, const Quaternion& rotate = Quaternion::IDENTITY); 00405 00408 virtual void addChild(Node* child); 00409 00412 virtual unsigned short numChildren(void) const; 00413 00418 virtual Node* getChild(unsigned short index) const; 00419 00422 virtual Node* getChild(const String& name) const; 00423 00434 virtual ChildNodeIterator getChildIterator(void); 00435 00443 virtual Node* removeChild(unsigned short index); 00444 00450 virtual Node* removeChild(const String& name); 00454 virtual void removeAllChildren(void); 00455 00458 virtual const Quaternion & _getDerivedOrientation(void) const; 00459 00462 virtual const Vector3 & _getDerivedPosition(void) const; 00463 00466 virtual const Vector3 & _getDerivedScale(void) const; 00467 00477 virtual Matrix4 _getFullTransform(void) const; 00478 00491 virtual void _update(bool updateChildren, bool parentHasChanged); 00492 00499 Material* getMaterial(void) const; 00506 void getRenderOperation(RenderOperation& op); 00513 void getWorldTransforms(Matrix4* xform) const; 00515 const Quaternion& getWorldOrientation(void) const; 00517 const Vector3& getWorldPosition(void) const; 00518 00529 virtual void setInitialState(void); 00530 00532 virtual void resetToInitialState(void); 00533 00538 virtual const Vector3& getInitialPosition(void) const; 00539 00541 virtual const Quaternion& getInitialOrientation(void) const; 00542 00544 virtual const Vector3& getInitialScale(void) const; 00545 00554 virtual void _weightedTransform(Real weight, const Vector3& translate, 00555 const Quaternion& rotate, const Vector3& scale); 00556 00558 Real getSquaredViewDepth(const Camera* cam) const; 00559 00565 virtual void needUpdate(); 00567 virtual void requestUpdate(Node* child); 00569 virtual void cancelUpdate(Node* child); 00570 00572 const LightList& getLights(void) const 00573 { 00574 // Nodes should not be lit by the scene, this will not get called 00575 static LightList ll; 00576 return ll; 00577 } 00578 00579 00580 00581 }; 00582 00583 } //namespace 00584 00585 #endif
Copyright © 2002-2003 by The OGRE Team
Last modified Wed Jan 21 00:10:19 2004