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# ISceneNode.h

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    00001 // Copyright (C) 2002-2009 Nikolaus Gebhardt
    00002 // This file is part of the "Irrlicht Engine".
    00003 // For conditions of distribution and use, see copyright notice in irrlicht.h
    00004
    00005 #ifndef __I_SCENE_NODE_H_INCLUDED__
    00006 #define __I_SCENE_NODE_H_INCLUDED__
    00007
    00008 #include "IAttributeExchangingObject.h"
    00009 #include "ESceneNodeTypes.h"
    00010 #include "ECullingTypes.h"
    00011 #include "EDebugSceneTypes.h"
    00012 #include "ISceneNodeAnimator.h"
    00013 #include "ITriangleSelector.h"
    00014 #include "SMaterial.h"
    00015 #include "irrString.h"
    00016 #include "aabbox3d.h"
    00017 #include "matrix4.h"
    00018 #include "irrList.h"
    00019 #include "IAttributes.h"
    00020
    00021 namespace irr
    00022 {
    00023 namespace scene
    00024 {
    00025         class ISceneManager;
    00026
    00028         typedef core::list<ISceneNode*> ISceneNodeList;
    00030         typedef core::list<ISceneNodeAnimator*> ISceneNodeAnimatorList;
    00031
    00033
    00040         class ISceneNode : virtual public io::IAttributeExchangingObject
    00041         {
    00042         public:
    00043
    00045                 ISceneNode(ISceneNode* parent, ISceneManager* mgr, s32 id=-1,
    00046                                 const core::vector3df& position = core::vector3df(0,0,0),
    00047                                 const core::vector3df& rotation = core::vector3df(0,0,0),
    00048                                 const core::vector3df& scale = core::vector3df(1.0f, 1.0f, 1.0f))
    00049                         : RelativeTranslation(position), RelativeRotation(rotation), RelativeScale(scale),
    00050                                 Parent(0), SceneManager(mgr), TriangleSelector(0), ID(id),
    00051                                 AutomaticCullingState(EAC_BOX), DebugDataVisible(EDS_OFF),
    00052                                 IsVisible(true), IsDebugObject(false)
    00053                 {
    00054                         if (parent)
    00055                                 parent->addChild(this);
    00056
    00057                         updateAbsolutePosition();
    00058                 }
    00059
    00060
    00062                 virtual ~ISceneNode()
    00063                 {
    00064                         // delete all children
    00065                         removeAll();
    00066
    00067                         // delete all animators
    00068                         ISceneNodeAnimatorList::Iterator ait = Animators.begin();
    00069                         for (; ait != Animators.end(); ++ait)
    00070                                 (*ait)->drop();
    00071
    00072                         if (TriangleSelector)
    00073                                 TriangleSelector->drop();
    00074                 }
    00075
    00076
    00078
    00091                 virtual void OnRegisterSceneNode()
    00092                 {
    00093                         if (IsVisible)
    00094                         {
    00095                                 ISceneNodeList::Iterator it = Children.begin();
    00096                                 for (; it != Children.end(); ++it)
    00097                                         (*it)->OnRegisterSceneNode();
    00098                         }
    00099                 }
    00100
    00101
    00103
    00108                 virtual void OnAnimate(u32 timeMs)
    00109                 {
    00110                         if (IsVisible)
    00111                         {
    00112                                 // animate this node with all animators
    00113
    00114                                 ISceneNodeAnimatorList::Iterator ait = Animators.begin();
    00115                                 while (ait != Animators.end())
    00116                                         {
    00117                                         // continue to the next node before calling animateNode()
    00118                                         // so that the animator may remove itself from the scene
    00119                                         // node without the iterator becoming invalid
    00120                                         ISceneNodeAnimator* anim = *ait;
    00121                                         ++ait;
    00122                                         anim->animateNode(this, timeMs);
    00123                                 }
    00124
    00125                                 // update absolute position
    00126                                 updateAbsolutePosition();
    00127
    00128                                 // perform the post render process on all children
    00129
    00130                                 ISceneNodeList::Iterator it = Children.begin();
    00131                                 for (; it != Children.end(); ++it)
    00132                                         (*it)->OnAnimate(timeMs);
    00133                         }
    00134                 }
    00135
    00136
    00138                 virtual void render() = 0;
    00139
    00140
    00142
    00143                 virtual const c8* getName() const
    00144                 {
    00145                         return Name.c_str();
    00146                 }
    00147
    00148
    00150
    00151                 virtual void setName(const c8* name)
    00152                 {
    00153                         Name = name;
    00154                 }
    00155
    00156
    00158
    00159                 virtual void setName(const core::stringc& name)
    00160                 {
    00161                         Name = name;
    00162                 }
    00163
    00164
    00166
    00173                 virtual const core::aabbox3d<f32>& getBoundingBox() const = 0;
    00174
    00175
    00177
    00178                 virtual const core::aabbox3d<f32> getTransformedBoundingBox() const
    00179                 {
    00180                         core::aabbox3d<f32> box = getBoundingBox();
    00181                         AbsoluteTransformation.transformBoxEx(box);
    00182                         return box;
    00183                 }
    00184
    00185
    00188                 virtual const core::matrix4& getAbsoluteTransformation() const
    00189                 {
    00190                         return AbsoluteTransformation;
    00191                 }
    00192
    00193
    00195
    00199                 virtual core::matrix4 getRelativeTransformation() const
    00200                 {
    00201                         core::matrix4 mat;
    00202                         mat.setRotationDegrees(RelativeRotation);
    00203                         mat.setTranslation(RelativeTranslation);
    00204
    00205                         if (RelativeScale != core::vector3df(1.f,1.f,1.f))
    00206                         {
    00207                                 core::matrix4 smat;
    00208                                 smat.setScale(RelativeScale);
    00209                                 mat *= smat;
    00210                         }
    00211
    00212                         return mat;
    00213                 }
    00214
    00215
    00217
    00221                 virtual bool isVisible() const
    00222                 {
    00223                         _IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
    00224                         return IsVisible;
    00225                 }
    00226
    00228
    00230                 virtual bool isTrulyVisible() const
    00231                 {
    00232                         _IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
    00233                         if(!IsVisible)
    00234                                 return false;
    00235
    00236                         if(!Parent)
    00237                                 return true;
    00238
    00239                         return Parent->isTrulyVisible();
    00240                 }
    00241
    00243
    00247                 virtual void setVisible(bool isVisible)
    00248                 {
    00249                         IsVisible = isVisible;
    00250                 }
    00251
    00252
    00254
    00256                 virtual s32 getID() const
    00257                 {
    00258                         return ID;
    00259                 }
    00260
    00261
    00263
    00265                 virtual void setID(s32 id)
    00266                 {
    00267                         ID = id;
    00268                 }
    00269
    00270
    00272
    00275                 virtual void addChild(ISceneNode* child)
    00276                 {
    00277                         if (child && (child != this))
    00278                         {
    00279                                 // Change scene manager?
    00280                                 if (SceneManager != child->SceneManager)
    00281                                         child->setSceneManager(SceneManager);
    00282
    00283                                 child->grab();
    00284                                 child->remove(); // remove from old parent
    00285                                 Children.push_back(child);
    00286                                 child->Parent = this;
    00287                         }
    00288                 }
    00289
    00290
    00292
    00297                 virtual bool removeChild(ISceneNode* child)
    00298                 {
    00299                         ISceneNodeList::Iterator it = Children.begin();
    00300                         for (; it != Children.end(); ++it)
    00301                                 if ((*it) == child)
    00302                                 {
    00303                                         (*it)->Parent = 0;
    00304                                         (*it)->drop();
    00305                                         Children.erase(it);
    00306                                         return true;
    00307                                 }
    00308
    00309                         _IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
    00310                         return false;
    00311                 }
    00312
    00313
    00315
    00318                 virtual void removeAll()
    00319                 {
    00320                         ISceneNodeList::Iterator it = Children.begin();
    00321                         for (; it != Children.end(); ++it)
    00322                         {
    00323                                 (*it)->Parent = 0;
    00324                                 (*it)->drop();
    00325                         }
    00326
    00327                         Children.clear();
    00328                 }
    00329
    00330
    00332
    00334                 virtual void remove()
    00335                 {
    00336                         if (Parent)
    00337                                 Parent->removeChild(this);
    00338                 }
    00339
    00340
    00342
    00343                 virtual void addAnimator(ISceneNodeAnimator* animator)
    00344                 {
    00345                         if (animator)
    00346                         {
    00347                                 Animators.push_back(animator);
    00348                                 animator->grab();
    00349                         }
    00350                 }
    00351
    00352
    00354
    00355                 const core::list<ISceneNodeAnimator*>& getAnimators() const
    00356                 {
    00357                         return Animators;
    00358                 }
    00359
    00360
    00362
    00365                 virtual void removeAnimator(ISceneNodeAnimator* animator)
    00366                 {
    00367                         ISceneNodeAnimatorList::Iterator it = Animators.begin();
    00368                         for (; it != Animators.end(); ++it)
    00369                         {
    00370                                 if ((*it) == animator)
    00371                                 {
    00372                                         (*it)->drop();
    00373                                         Animators.erase(it);
    00374                                         return;
    00375                                 }
    00376                         }
    00377                 }
    00378
    00379
    00381
    00383                 virtual void removeAnimators()
    00384                 {
    00385                         ISceneNodeAnimatorList::Iterator it = Animators.begin();
    00386                         for (; it != Animators.end(); ++it)
    00387                                 (*it)->drop();
    00388
    00389                         Animators.clear();
    00390                 }
    00391
    00392
    00394
    00401                 virtual video::SMaterial& getMaterial(u32 num)
    00402                 {
    00403                         return video::IdentityMaterial;
    00404                 }
    00405
    00406
    00408
    00409                 virtual u32 getMaterialCount() const
    00410                 {
    00411                         return 0;
    00412                 }
    00413
    00414
    00416
    00420                 void setMaterialFlag(video::E_MATERIAL_FLAG flag, bool newvalue)
    00421                 {
    00422                         for (u32 i=0; i<getMaterialCount(); ++i)
    00423                                 getMaterial(i).setFlag(flag, newvalue);
    00424                 }
    00425
    00426
    00428
    00431                 void setMaterialTexture(u32 textureLayer, video::ITexture* texture)
    00432                 {
    00433                         if (textureLayer >= video::MATERIAL_MAX_TEXTURES)
    00434                                 return;
    00435
    00436                         for (u32 i=0; i<getMaterialCount(); ++i)
    00437                                 getMaterial(i).setTexture(textureLayer, texture);
    00438                 }
    00439
    00440
    00442
    00443                 void setMaterialType(video::E_MATERIAL_TYPE newType)
    00444                 {
    00445                         for (u32 i=0; i<getMaterialCount(); ++i)
    00446                                 getMaterial(i).MaterialType = newType;
    00447                 }
    00448
    00449
    00451
    00455                 virtual const core::vector3df& getScale() const
    00456                 {
    00457                         return RelativeScale;
    00458                 }
    00459
    00460
    00462
    00463                 virtual void setScale(const core::vector3df& scale)
    00464                 {
    00465                         RelativeScale = scale;
    00466                 }
    00467
    00468
    00470
    00474                 virtual const core::vector3df& getRotation() const
    00475                 {
    00476                         return RelativeRotation;
    00477                 }
    00478
    00479
    00481
    00483                 virtual void setRotation(const core::vector3df& rotation)
    00484                 {
    00485                         RelativeRotation = rotation;
    00486                 }
    00487
    00488
    00490
    00493                 virtual const core::vector3df& getPosition() const
    00494                 {
    00495                         return RelativeTranslation;
    00496                 }
    00497
    00498
    00500
    00502                 virtual void setPosition(const core::vector3df& newpos)
    00503                 {
    00504                         RelativeTranslation = newpos;
    00505                 }
    00506
    00507
    00509
    00512                 virtual core::vector3df getAbsolutePosition() const
    00513                 {
    00514                         return AbsoluteTransformation.getTranslation();
    00515                 }
    00516
    00517
    00519
    00524                 void setAutomaticCulling( E_CULLING_TYPE state)
    00525                 {
    00526                         AutomaticCullingState = state;
    00527                 }
    00528
    00529
    00531
    00532                 E_CULLING_TYPE getAutomaticCulling() const
    00533                 {
    00534                         _IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
    00535                         return AutomaticCullingState;
    00536                 }
    00537
    00538
    00540
    00543                 virtual void setDebugDataVisible(s32 state)
    00544                 {
    00545                         DebugDataVisible = state;
    00546                 }
    00547
    00549
    00551                 s32 isDebugDataVisible() const
    00552                 {
    00553                         return DebugDataVisible;
    00554                 }
    00555
    00556
    00558
    00560                 void setIsDebugObject(bool debugObject)
    00561                 {
    00562                         IsDebugObject = debugObject;
    00563                 }
    00564
    00565
    00567
    00570                 bool isDebugObject() const
    00571                 {
    00572                         _IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX;
    00573                         return IsDebugObject;
    00574                 }
    00575
    00576
    00578
    00579                 const core::list<ISceneNode*>& getChildren() const
    00580                 {
    00581                         return Children;
    00582                 }
    00583
    00584
    00586
    00587                 virtual void setParent(ISceneNode* newParent)
    00588                 {
    00589                         grab();
    00590                         remove();
    00591
    00592                         Parent = newParent;
    00593
    00594                         if (Parent)
    00595                                 Parent->addChild(this);
    00596
    00597                         drop();
    00598                 }
    00599
    00600
    00602
    00611                 virtual ITriangleSelector* getTriangleSelector() const
    00612                 {
    00613                         return TriangleSelector;
    00614                 }
    00615
    00616
    00618
    00626                 virtual void setTriangleSelector(ITriangleSelector* selector)
    00627                 {
    00628                         if (TriangleSelector != selector)
    00629                         {
    00630                                 if (TriangleSelector)
    00631                                         TriangleSelector->drop();
    00632
    00633                                 TriangleSelector = selector;
    00634                                 if (TriangleSelector)
    00635                                         TriangleSelector->grab();
    00636                         }
    00637                 }
    00638
    00639
    00641
    00643                 virtual void updateAbsolutePosition()
    00644                 {
    00645                         if (Parent)
    00646                         {
    00647                                 AbsoluteTransformation =
    00648                                         Parent->getAbsoluteTransformation() * getRelativeTransformation();
    00649                         }
    00650                         else
    00651                                 AbsoluteTransformation = getRelativeTransformation();
    00652                 }
    00653
    00654
    00656
    00657                 scene::ISceneNode* getParent() const
    00658                 {
    00659                         return Parent;
    00660                 }
    00661
    00662
    00664
    00665                 virtual ESCENE_NODE_TYPE getType() const
    00666                 {
    00667                         return ESNT_UNKNOWN;
    00668                 }
    00669
    00670
    00672
    00678                 virtual void serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0) const
    00679                 {
    00680                         if (!out)
    00681                                 return;
    00682                         out->addString  ("Name", Name.c_str());
    00683                         out->addInt     ("Id", ID );
    00684
    00685                         out->addVector3d("Position", getPosition() );
    00686                         out->addVector3d("Rotation", getRotation() );
    00687                         out->addVector3d("Scale", getScale() );
    00688
    00689                         out->addBool    ("Visible", IsVisible );
    00690                         out->addEnum    ("AutomaticCulling", AutomaticCullingState, AutomaticCullingNames);
    00691                         out->addInt     ("DebugDataVisible", DebugDataVisible );
    00692                         out->addBool    ("IsDebugObject", IsDebugObject );
    00693                 }
    00694
    00695
    00697
    00703                 virtual void deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0)
    00704                 {
    00705                         if (!in)
    00706                                 return;
    00707                         Name = in->getAttributeAsString("Name");
    00708                         ID = in->getAttributeAsInt("Id");
    00709
    00710                         setPosition(in->getAttributeAsVector3d("Position"));
    00711                         setRotation(in->getAttributeAsVector3d("Rotation"));
    00712                         setScale(in->getAttributeAsVector3d("Scale"));
    00713
    00714                         IsVisible = in->getAttributeAsBool("Visible");
    00715                         AutomaticCullingState = (scene::E_CULLING_TYPE) in->getAttributeAsEnumeration("AutomaticCulling",
    00716                                         scene::AutomaticCullingNames);
    00717
    00718                         DebugDataVisible = in->getAttributeAsInt("DebugDataVisible");
    00719                         IsDebugObject = in->getAttributeAsBool("IsDebugObject");
    00720
    00721                         updateAbsolutePosition();
    00722                 }
    00723
    00725
    00728                 virtual ISceneNode* clone(ISceneNode* newParent=0, ISceneManager* newManager=0)
    00729                 {
    00730                         return 0; // to be implemented by derived classes
    00731                 }
    00732
    00734
    00735                 virtual ISceneManager* getSceneManager(void) const { return SceneManager; }
    00736
    00737         protected:
    00738
    00740
    00744                 void cloneMembers(ISceneNode* toCopyFrom, ISceneManager* newManager)
    00745                 {
    00746                         Name = toCopyFrom->Name;
    00747                         AbsoluteTransformation = toCopyFrom->AbsoluteTransformation;
    00748                         RelativeTranslation = toCopyFrom->RelativeTranslation;
    00749                         RelativeRotation = toCopyFrom->RelativeRotation;
    00750                         RelativeScale = toCopyFrom->RelativeScale;
    00751                         ID = toCopyFrom->ID;
    00752                         setTriangleSelector(toCopyFrom->TriangleSelector);
    00753                         AutomaticCullingState = toCopyFrom->AutomaticCullingState;
    00754                         DebugDataVisible = toCopyFrom->DebugDataVisible;
    00755                         IsVisible = toCopyFrom->IsVisible;
    00756                         IsDebugObject = toCopyFrom->IsDebugObject;
    00757
    00758                         if (newManager)
    00759                                 SceneManager = newManager;
    00760                         else
    00761                                 SceneManager = toCopyFrom->SceneManager;
    00762
    00763                         // clone children
    00764
    00765                         ISceneNodeList::Iterator it = toCopyFrom->Children.begin();
    00766                         for (; it != toCopyFrom->Children.end(); ++it)
    00767                                 (*it)->clone(this, newManager);
    00768
    00769                         // clone animators
    00770
    00771                         ISceneNodeAnimatorList::Iterator ait = toCopyFrom->Animators.begin();
    00772                         for (; ait != toCopyFrom->Animators.end(); ++ait)
    00773                         {
    00774                                 ISceneNodeAnimator* anim = (*ait)->createClone(this, SceneManager);
    00775                                 if (anim)
    00776                                 {
    00777                                         addAnimator(anim);
    00778                                         anim->drop();
    00779                                 }
    00780                         }
    00781                 }
    00782
    00785                 void setSceneManager(ISceneManager* newManager)
    00786                 {
    00787                         SceneManager = newManager;
    00788
    00789                         ISceneNodeList::Iterator it = Children.begin();
    00790                         for (; it != Children.end(); ++it)
    00791                                 (*it)->setSceneManager(newManager);
    00792                 }
    00793
    00795                 core::stringc Name;
    00796
    00798                 core::matrix4 AbsoluteTransformation;
    00799
    00801                 core::vector3df RelativeTranslation;
    00802
    00804                 core::vector3df RelativeRotation;
    00805
    00807                 core::vector3df RelativeScale;
    00808
    00810                 ISceneNode* Parent;
    00811
    00813                 core::list<ISceneNode*> Children;
    00814
    00816                 core::list<ISceneNodeAnimator*> Animators;
    00817
    00819                 ISceneManager* SceneManager;
    00820
    00822                 ITriangleSelector* TriangleSelector;
    00823
    00825                 s32 ID;
    00826
    00828                 E_CULLING_TYPE AutomaticCullingState;
    00829
    00831                 s32 DebugDataVisible;
    00832
    00834                 bool IsVisible;
    00835
    00837                 bool IsDebugObject;
    00838         };
    00839
    00840
    00841 } // end namespace scene
    00842 } // end namespace irr
    00843
    00844 #endif
    00845

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