/* ----------------------------------------------------------------------------- This source file is part of OGRE (Object-oriented Graphics Rendering Engine) For the latest info, see http://www.ogre3d.org Copyright (c) 2000-2013 Torus Knot Software Ltd Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------------- */ #ifndef __Entity_H__ #define __Entity_H__ #include "OgrePrerequisites.h" #include "OgreCommon.h" #include "OgreString.h" #include "OgreMovableObject.h" #include "OgreQuaternion.h" #include "OgreVector3.h" #include "OgreHardwareBufferManager.h" #include "OgreMesh.h" #include "OgreRenderable.h" #include "OgreResourceGroupManager.h" #include "OgreHeaderPrefix.h" namespace Ogre { /** \addtogroup Core * @{ */ /** \addtogroup Scene * @{ */ /** Defines an instance of a discrete, movable object based on a Mesh. @remarks Ogre generally divides renderable objects into 2 groups, discrete (separate) and relatively small objects which move around the world, and large, sprawling geometry which makes up generally immovable scenery, aka 'level geometry'. @par The Mesh and SubMesh classes deal with the definition of the geometry used by discrete movable objects. Entities are actual instances of objects based on this geometry in the world. Therefore there is usually a single set Mesh for a car, but there may be multiple entities based on it in the world. Entities are able to override aspects of the Mesh it is defined by, such as changing material properties per instance (so you can have many cars using the same geometry but different textures for example). Because a Mesh is split into SubMeshes for this purpose, the Entity class is a grouping class (much like the Mesh class) and much of the detail regarding individual changes is kept in the SubEntity class. There is a 1:1 relationship between SubEntity instances and the SubMesh instances associated with the Mesh the Entity is based on. @par Entity and SubEntity classes are never created directly. Use the createEntity method of the SceneManager (passing a model name) to create one. @par Entities are included in the scene by associating them with a SceneNode, using the attachEntity method. See the SceneNode class for full information. @note No functions were declared virtual to improve performance. */ class _OgreExport Entity: public MovableObject, public Resource::Listener { // Allow EntityFactory full access friend class EntityFactory; friend class SubEntity; public: typedef set::type EntitySet; typedef map::type SchemeHardwareAnimMap; protected: /** Private constructor (instances cannot be created directly). */ Entity(); /** Private constructor - specify name (the usual constructor used). */ Entity( const String& name, const MeshPtr& mesh); /** The Mesh that this Entity is based on. */ MeshPtr mMesh; /** List of SubEntities (point to SubMeshes). */ typedef vector::type SubEntityList; SubEntityList mSubEntityList; /// State of animation for animable meshes AnimationStateSet* mAnimationState; /// Temp buffer details for software skeletal anim of shared geometry TempBlendedBufferInfo mTempSkelAnimInfo; /// Vertex data details for software skeletal anim of shared geometry VertexData* mSkelAnimVertexData; /// Temp buffer details for software vertex anim of shared geometry TempBlendedBufferInfo mTempVertexAnimInfo; /// Vertex data details for software vertex anim of shared geometry VertexData* mSoftwareVertexAnimVertexData; /// Vertex data details for hardware vertex anim of shared geometry /// - separate since we need to s/w anim for shadows whilst still altering /// the vertex data for hardware morphing (pos2 binding) VertexData* mHardwareVertexAnimVertexData; /// Have we applied any vertex animation to shared geometry? bool mVertexAnimationAppliedThisFrame; /// Have the temp buffers already had their geometry prepared for use in rendering shadow volumes? bool mPreparedForShadowVolumes; /** Internal method - given vertex data which could be from the Mesh or any submesh, finds the temporary blend copy. */ const VertexData* findBlendedVertexData(const VertexData* orig); /** Internal method - given vertex data which could be from the Mesh or any SubMesh, finds the corresponding SubEntity. */ SubEntity* findSubEntityForVertexData(const VertexData* orig); /** Internal method for extracting metadata out of source vertex data for fast assignment of temporary buffers later. */ void extractTempBufferInfo(VertexData* sourceData, TempBlendedBufferInfo* info); /** Internal method to clone vertex data definitions but to remove blend buffers. */ VertexData* cloneVertexDataRemoveBlendInfo(const VertexData* source); /** Internal method for preparing this Entity for use in animation. */ void prepareTempBlendBuffers(void); /** Mark all vertex data as so far unanimated. */ void markBuffersUnusedForAnimation(void); /** Internal method to restore original vertex data where we didn't perform any vertex animation this frame. */ void restoreBuffersForUnusedAnimation(bool hardwareAnimation); /** Ensure that any unbound pose animation buffers are bound to a safe default. @param srcData Original vertex data containing original positions. @param destData Hardware animation vertex data to be checked. */ void bindMissingHardwarePoseBuffers(const VertexData* srcData, VertexData* destData); /** When performing software pose animation, initialise software copy of vertex data. */ void initialisePoseVertexData(const VertexData* srcData, VertexData* destData, bool animateNormals); /** When animating normals for pose animation, finalise normals by filling in with the reference mesh normal where applied normal weights < 1. */ void finalisePoseNormals(const VertexData* srcData, VertexData* destData); /// Cached bone matrices, including any world transform. Matrix4 *mBoneWorldMatrices; /// Cached bone matrices in skeleton local space, might shares with other entity instances. Matrix4 *mBoneMatrices; unsigned short mNumBoneMatrices; /// Records the last frame in which animation was updated. unsigned long mFrameAnimationLastUpdated; /// Perform all the updates required for an animated entity. void updateAnimation(void); /// Records the last frame in which the bones was updated. /// It's a pointer because it can be shared between different entities with /// a shared skeleton. unsigned long *mFrameBonesLastUpdated; /** A set of all the entities which shares a single SkeletonInstance. This is only created if the entity is in fact sharing it's SkeletonInstance with other Entities. */ EntitySet* mSharedSkeletonEntities; /** Private method to cache bone matrices from skeleton. @return True if the bone matrices cache has been updated. False if note. */ bool cacheBoneMatrices(void); /// Flag determines whether or not to display skeleton. bool mDisplaySkeleton; /** Flag indicating whether hardware animation is supported by this entities materials data is saved per scehme number. */ SchemeHardwareAnimMap mSchemeHardwareAnim; /// Current state of the hardware animation as represented by the entities parameters. bool mCurrentHWAnimationState; /// Number of hardware poses supported by materials. ushort mHardwarePoseCount; /// Flag indicating whether we have a vertex program in use on any of our subentities. bool mVertexProgramInUse; /// Counter indicating number of requests for software animation. int mSoftwareAnimationRequests; /// Counter indicating number of requests for software blended normals. int mSoftwareAnimationNormalsRequests; /// Flag indicating whether to skip automatic updating of the Skeleton's AnimationState. bool mSkipAnimStateUpdates; /// Flag indicating whether to update the main entity skeleton even when an LOD is displayed. bool mAlwaysUpdateMainSkeleton; /// The LOD number of the mesh to use, calculated by _notifyCurrentCamera. ushort mMeshLodIndex; /// LOD bias factor, transformed for optimisation when calculating adjusted LOD value. Real mMeshLodFactorTransformed; /// Index of minimum detail LOD (NB higher index is lower detail). ushort mMinMeshLodIndex; /// Index of maximum detail LOD (NB lower index is higher detail). ushort mMaxMeshLodIndex; /// LOD bias factor, not transformed. Real mMaterialLodFactor; /// LOD bias factor, transformed for optimisation when calculating adjusted LOD value. Real mMaterialLodFactorTransformed; /// Index of minimum detail LOD (NB higher index is lower detail). ushort mMinMaterialLodIndex; /// Index of maximum detail LOD (NB lower index is higher detail). ushort mMaxMaterialLodIndex; /** List of LOD Entity instances (for manual LODs). We don't know when the mesh is using manual LODs whether one LOD to the next will have the same number of SubMeshes, therefore we have to allow a separate Entity list with each alternate one. */ typedef vector::type LODEntityList; LODEntityList mLodEntityList; /** This Entity's personal copy of the skeleton, if skeletally animated. */ SkeletonInstance* mSkeletonInstance; /// Has this entity been initialised yet? bool mInitialised; /// Last parent transform. Matrix4 mLastParentXform; /// Mesh state count, used to detect differences. size_t mMeshStateCount; /** Builds a list of SubEntities based on the SubMeshes contained in the Mesh. */ void buildSubEntityList(MeshPtr& mesh, SubEntityList* sublist); /// Internal implementation of attaching a 'child' object to this entity and assign the parent node to the child entity. void attachObjectImpl(MovableObject *pMovable, TagPoint *pAttachingPoint); /// Internal implementation of detaching a 'child' object of this entity and clear the parent node of the child entity. void detachObjectImpl(MovableObject* pObject); /// Internal implementation of detaching all 'child' objects of this entity. void detachAllObjectsImpl(void); /// Ensures reevaluation of the vertex processing usage. void reevaluateVertexProcessing(void); /** Calculates the kind of vertex processing in use. @remarks This function's return value is calculated according to the current active scheme. This is due to the fact that RTSS schemes may be different in their handling of hardware animation. */ bool calcVertexProcessing(void); /// Apply vertex animation. void applyVertexAnimation(bool hardwareAnimation, bool stencilShadows); /// Initialise the hardware animation elements for given vertex data. ushort initHardwareAnimationElements(VertexData* vdata, ushort numberOfElements, bool animateNormals); /// Are software vertex animation temp buffers bound? bool tempVertexAnimBuffersBound(void) const; /// Are software skeleton animation temp buffers bound? bool tempSkelAnimBuffersBound(bool requestNormals) const; public: /// Contains the child objects (attached to bones) indexed by name. typedef map::type ChildObjectList; protected: ChildObjectList mChildObjectList; /// Bounding box that 'contains' all the mesh of each child entity. mutable AxisAlignedBox mFullBoundingBox; ShadowRenderableList mShadowRenderables; /** Nested class to allow entity shadows. */ class _OgreExport EntityShadowRenderable : public ShadowRenderable { protected: Entity* mParent; /// Shared link to position buffer. HardwareVertexBufferSharedPtr mPositionBuffer; /// Shared link to w-coord buffer (optional). HardwareVertexBufferSharedPtr mWBuffer; /// Link to current vertex data used to bind (maybe changes). const VertexData* mCurrentVertexData; /// Original position buffer source binding. unsigned short mOriginalPosBufferBinding; /// Link to SubEntity, only present if SubEntity has it's own geometry. SubEntity* mSubEntity; public: EntityShadowRenderable(Entity* parent, HardwareIndexBufferSharedPtr* indexBuffer, const VertexData* vertexData, bool createSeparateLightCap, SubEntity* subent, bool isLightCap = false); ~EntityShadowRenderable(); /// Create the separate light cap if it doesn't already exists. void _createSeparateLightCap(); /// @copydoc ShadowRenderable::getWorldTransforms. void getWorldTransforms(Matrix4* xform) const; HardwareVertexBufferSharedPtr getPositionBuffer(void) { return mPositionBuffer; } HardwareVertexBufferSharedPtr getWBuffer(void) { return mWBuffer; } /// Rebind the source positions (for temp buffer users). void rebindPositionBuffer(const VertexData* vertexData, bool force); /// @copydoc ShadowRenderable::isVisible. bool isVisible(void) const; /// @copydoc ShadowRenderable::rebindIndexBuffer. virtual void rebindIndexBuffer(const HardwareIndexBufferSharedPtr& indexBuffer); }; public: /** Default destructor. */ ~Entity(); /** Gets the Mesh that this Entity is based on. */ const MeshPtr& getMesh(void) const; /** Gets a pointer to a SubEntity, ie a part of an Entity. */ SubEntity* getSubEntity(unsigned int index) const; /** Gets a pointer to a SubEntity by name @remarks Names should be initialized during a Mesh creation. */ SubEntity* getSubEntity( const String& name ) const; /** Retrieves the number of SubEntity objects making up this entity. */ unsigned int getNumSubEntities(void) const; /** Clones this entity and returns a pointer to the clone. @remarks Useful method for duplicating an entity. The new entity must be given a unique name, and is not attached to the scene in any way so must be attached to a SceneNode to be visible (exactly as entities returned from SceneManager::createEntity). @param newName Name for the new entity. */ Entity* clone( const String& newName ) const; /** Sets the material to use for the whole of this entity. @remarks This is a shortcut method to set all the materials for all subentities of this entity. Only use this method is you want to set the same material for all subentities or if you know there is only one. Otherwise call getSubEntity() and call the same method on the individual SubEntity. */ void setMaterialName( const String& name, const String& groupName = ResourceGroupManager::AUTODETECT_RESOURCE_GROUP_NAME ); /** Sets the material to use for the whole of this entity. @remarks This is a shortcut method to set all the materials for all subentities of this entity. Only use this method is you want to set the same material for all subentities or if you know there is only one. Otherwise call getSubEntity() and call the same method on the individual SubEntity. */ void setMaterial(const MaterialPtr& material); /** @copydoc MovableObject::_notifyCurrentCamera. */ void _notifyCurrentCamera(Camera* cam); /// @copydoc MovableObject::setRenderQueueGroup. void setRenderQueueGroup(uint8 queueID); /// @copydoc MovableObject::setRenderQueueGroupAndPriority. void setRenderQueueGroupAndPriority(uint8 queueID, ushort priority); /** @copydoc MovableObject::getBoundingBox. */ const AxisAlignedBox& getBoundingBox(void) const; /// Merge all the child object Bounds a return it. AxisAlignedBox getChildObjectsBoundingBox(void) const; /** @copydoc MovableObject::_updateRenderQueue. */ void _updateRenderQueue(RenderQueue* queue); /** @copydoc MovableObject::getMovableType */ const String& getMovableType(void) const; /** For entities based on animated meshes, gets the AnimationState object for a single animation. @remarks You animate an entity by updating the animation state objects. Each of these represents the current state of each animation available to the entity. The AnimationState objects are initialised from the Mesh object. */ AnimationState* getAnimationState(const String& name) const; /** Returns whether the AnimationState with the given name exists. */ bool hasAnimationState(const String& name) const; /** For entities based on animated meshes, gets the AnimationState objects for all animations. @return In case the entity is animated, this functions returns the pointer to a AnimationStateSet containing all animations of the entries. If the entity is not animated, it returns 0. @remarks You animate an entity by updating the animation state objects. Each of these represents the current state of each animation available to the entity. The AnimationState objects are initialised from the Mesh object. */ AnimationStateSet* getAllAnimationStates(void) const; /** Tells the Entity whether or not it should display it's skeleton, if it has one. */ void setDisplaySkeleton(bool display); /** Returns whether or not the entity is currently displaying its skeleton. */ bool getDisplaySkeleton(void) const; /** Gets a pointer to the entity representing the numbered manual level of detail. @remarks The zero-based index never includes the original entity, unlike Mesh::getLodLevel. */ Entity* getManualLodLevel(size_t index) const; /** Returns the number of manual levels of detail that this entity supports. @remarks This number never includes the original entity, it is difference with Mesh::getNumLodLevels. */ size_t getNumManualLodLevels(void) const; /** Returns the current LOD used to render */ ushort getCurrentLodIndex() { return mMeshLodIndex; } /** Sets a level-of-detail bias for the mesh detail of this entity. @remarks Level of detail reduction is normally applied automatically based on the Mesh settings. However, it is possible to influence this behaviour for this entity by adjusting the LOD bias. This 'nudges' the mesh level of detail used for this entity up or down depending on your requirements. You might want to use this if there was a particularly important entity in your scene which you wanted to detail better than the others, such as a player model. @par There are three parameters to this method; the first is a factor to apply; it defaults to 1.0 (no change), by increasing this to say 2.0, this model would take twice as long to reduce in detail, whilst at 0.5 this entity would use lower detail versions twice as quickly. The other 2 parameters are hard limits which let you set the maximum and minimum level-of-detail version to use, after all other calculations have been made. This lets you say that this entity should never be simplified, or that it can only use LODs below a certain level even when right next to the camera. @param factor Proportional factor to apply to the distance at which LOD is changed. Higher values increase the distance at which higher LODs are displayed (2.0 is twice the normal distance, 0.5 is half). @param maxDetailIndex The index of the maximum LOD this entity is allowed to use (lower indexes are higher detail: index 0 is the original full detail model). @param minDetailIndex The index of the minimum LOD this entity is allowed to use (higher indexes are lower detail). Use something like 99 if you want unlimited LODs (the actual LOD will be limited by the number in the Mesh). */ void setMeshLodBias(Real factor, ushort maxDetailIndex = 0, ushort minDetailIndex = 99); /** Sets a level-of-detail bias for the material detail of this entity. @remarks Level of detail reduction is normally applied automatically based on the Material settings. However, it is possible to influence this behaviour for this entity by adjusting the LOD bias. This 'nudges' the material level of detail used for this entity up or down depending on your requirements. You might want to use this if there was a particularly important entity in your scene which you wanted to detail better than the others, such as a player model. @par There are three parameters to this method; the first is a factor to apply; it defaults to 1.0 (no change), by increasing this to say 2.0, this entity would take twice as long to use a lower detail material, whilst at 0.5 this entity would use lower detail versions twice as quickly. The other 2 parameters are hard limits which let you set the maximum and minimum level-of-detail index to use, after all other calculations have been made. This lets you say that this entity should never be simplified, or that it can only use LODs below a certain level even when right next to the camera. @param factor Proportional factor to apply to the distance at which LOD is changed. Higher values increase the distance at which higher LODs are displayed (2.0 is twice the normal distance, 0.5 is half). @param maxDetailIndex The index of the maximum LOD this entity is allowed to use (lower indexes are higher detail: index 0 is the original full detail model). @param minDetailIndex The index of the minimum LOD this entity is allowed to use (higher indexes are lower detail. Use something like 99 if you want unlimited LODs (the actual LOD will be limited by the number of LOD indexes used in the Material). */ void setMaterialLodBias(Real factor, ushort maxDetailIndex = 0, ushort minDetailIndex = 99); /** Sets whether the polygon mode of this entire entity may be overridden by the camera detail settings. */ void setPolygonModeOverrideable(bool PolygonModeOverrideable); /** Attaches another object to a certain bone of the skeleton which this entity uses. @remarks This method can be used to attach another object to an animated part of this entity, by attaching it to a bone in the skeleton (with an offset if required). As this entity is animated, the attached object will move relative to the bone to which it is attached. @par An exception is thrown if the movable object is already attached to the bone, another bone or scenenode. If the entity has no skeleton or the bone name cannot be found then an exception is thrown. @param boneName The name of the bone (in the skeleton) to attach this object @param pMovable Pointer to the object to attach @param offsetOrientation An adjustment to the orientation of the attached object, relative to the bone. @param offsetPosition An adjustment to the position of the attached object, relative to the bone. @return The TagPoint to which the object has been attached */ TagPoint* attachObjectToBone(const String &boneName, MovableObject *pMovable, const Quaternion &offsetOrientation = Quaternion::IDENTITY, const Vector3 &offsetPosition = Vector3::ZERO); /** Detach a MovableObject previously attached using attachObjectToBone. If the movable object name is not found then an exception is raised. @param movableName The name of the movable object to be detached. */ MovableObject* detachObjectFromBone(const String &movableName); /** Detaches an object by pointer. @remarks Use this method to destroy a MovableObject which is attached to a bone of belonging this entity. But sometimes the object may be not in the child object list because it is a LOD entity, this method can safely detect and ignore in this case and won't raise an exception. */ void detachObjectFromBone(MovableObject* obj); /// Detach all MovableObjects previously attached using attachObjectToBone void detachAllObjectsFromBone(void); typedef MapIterator ChildObjectListIterator; /** Gets an iterator to the list of objects attached to bones on this entity. */ ChildObjectListIterator getAttachedObjectIterator(void); /** @copydoc MovableObject::getBoundingRadius */ Real getBoundingRadius(void) const; /** @copydoc MovableObject::getWorldBoundingBox */ const AxisAlignedBox& getWorldBoundingBox(bool derive = false) const; /** @copydoc MovableObject::getWorldBoundingSphere */ const Sphere& getWorldBoundingSphere(bool derive = false) const; /** @copydoc ShadowCaster::getEdgeList. */ EdgeData* getEdgeList(void); /** @copydoc ShadowCaster::hasEdgeList. */ bool hasEdgeList(void); /** @copydoc ShadowCaster::getShadowVolumeRenderableIterator. */ ShadowRenderableListIterator getShadowVolumeRenderableIterator( ShadowTechnique shadowTechnique, const Light* light, HardwareIndexBufferSharedPtr* indexBuffer, size_t* indexBufferUsedSize, bool extrudeVertices, Real extrusionDistance, unsigned long flags = 0 ); /** Internal method for retrieving bone matrix information. */ const Matrix4* _getBoneMatrices(void) const { return mBoneMatrices;} /** Internal method for retrieving bone matrix information. */ unsigned short _getNumBoneMatrices(void) const { return mNumBoneMatrices; } /** Returns whether or not this entity is skeletally animated. */ bool hasSkeleton(void) const { return mSkeletonInstance != 0; } /** Get this Entity's personal skeleton instance. */ SkeletonInstance* getSkeleton(void) const { return mSkeletonInstance; } /** Returns whether or not hardware animation is enabled. @remarks Because fixed-function indexed vertex blending is rarely supported by existing graphics cards, hardware animation can only be done if the vertex programs in the materials used to render an entity support it. Therefore, this method will only return true if all the materials assigned to this entity have vertex programs assigned, and all those vertex programs must support 'includes_morph_animation true' if using morph animation, 'includes_pose_animation true' if using pose animation and 'includes_skeletal_animation true' if using skeletal animation. Also note the the function returns value according to the current active scheme. This is due to the fact that RTSS schemes may be different in their handling of hardware animation. */ bool isHardwareAnimationEnabled(void); /** @copydoc MovableObject::_notifyAttached */ void _notifyAttached(Node* parent, bool isTagPoint = false); /** Returns the number of requests that have been made for software animation @remarks If non-zero then software animation will be performed in updateAnimation regardless of the current setting of isHardwareAnimationEnabled or any internal optimise for eliminate software animation. Requests for software animation are made by calling the addSoftwareAnimationRequest() method. */ int getSoftwareAnimationRequests(void) const { return mSoftwareAnimationRequests; } /** Returns the number of requests that have been made for software animation of normals @remarks If non-zero, and getSoftwareAnimationRequests() also returns non-zero, then software animation of normals will be performed in updateAnimation regardless of the current setting of isHardwareAnimationEnabled or any internal optimise for eliminate software animation. Currently it is not possible to force software animation of only normals. Consequently this value is always less than or equal to that returned by getSoftwareAnimationRequests(). Requests for software animation of normals are made by calling the addSoftwareAnimationRequest() method with 'true' as the parameter. */ int getSoftwareAnimationNormalsRequests(void) const { return mSoftwareAnimationNormalsRequests; } /** Add a request for software animation @remarks Tells the entity to perform animation calculations for skeletal/vertex animations in software, regardless of the current setting of isHardwareAnimationEnabled(). Software animation will be performed any time one or more requests have been made. If 'normalsAlso' is 'true', then the entity will also do software blending on normal vectors, in addition to positions. This advanced method useful for situations in which access to actual mesh vertices is required, such as accurate collision detection or certain advanced shading techniques. When software animation is no longer needed, the caller of this method should always remove the request by calling removeSoftwareAnimationRequest(), passing the same value for 'normalsAlso'. */ void addSoftwareAnimationRequest(bool normalsAlso); /** Removes a request for software animation @remarks Calling this decrements the entity's internal counter of the number of requests for software animation. If the counter is already zero then calling this method throws an exception. The 'normalsAlso' flag if set to 'true' will also decrement the internal counter of number of requests for software animation of normals. */ void removeSoftwareAnimationRequest(bool normalsAlso); /** Shares the SkeletonInstance with the supplied entity. Note that in order for this to work, both entities must have the same Skeleton. */ void shareSkeletonInstanceWith(Entity* entity); /** Returns whether or not this entity is either morph or pose animated. */ bool hasVertexAnimation(void) const; /** Stops sharing the SkeletonInstance with other entities. */ void stopSharingSkeletonInstance(); /** Returns whether this entity shares it's SkeltonInstance with other entity instances. */ inline bool sharesSkeletonInstance() const { return mSharedSkeletonEntities != NULL; } /** Returns a pointer to the set of entities which share a SkeletonInstance. If this instance does not share it's SkeletonInstance with other instances @c NULL will be returned */ inline const EntitySet* getSkeletonInstanceSharingSet() const { return mSharedSkeletonEntities; } /** Updates the internal animation state set to include the latest available animations from the attached skeleton. @remarks Use this method if you manually add animations to a skeleton, or have linked the skeleton to another for animation purposes since creating this entity. @note If you have called getAnimationState prior to calling this method, the pointers will still remain valid. */ void refreshAvailableAnimationState(void); /** Advanced method to perform all the updates required for an animated entity. @remarks You don't normally need to call this, but it's here in case you wish to manually update the animation of an Entity at a specific point in time. Animation will not be updated more than once a frame no matter how many times you call this method. */ void _updateAnimation(void); /** Tests if any animation applied to this entity. @remarks An entity is animated if any animation state is enabled, or any manual bone applied to the skeleton. */ bool _isAnimated(void) const; /** Tests if skeleton was animated. */ bool _isSkeletonAnimated(void) const; /** Advanced method to get the temporarily blended skeletal vertex information for entities which are software skinned. @remarks Internal engine will eliminate software animation if possible, this information is unreliable unless added request for software animation via addSoftwareAnimationRequest. @note The positions/normals of the returned vertex data is in object space. */ VertexData* _getSkelAnimVertexData(void) const; /** Advanced method to get the temporarily blended software vertex animation information @remarks Internal engine will eliminate software animation if possible, this information is unreliable unless added request for software animation via addSoftwareAnimationRequest. @note The positions/normals of the returned vertex data is in object space. */ VertexData* _getSoftwareVertexAnimVertexData(void) const; /** Advanced method to get the hardware morph vertex information @note The positions/normals of the returned vertex data is in object space. */ VertexData* _getHardwareVertexAnimVertexData(void) const; /** Advanced method to get the temp buffer information for software skeletal animation. */ TempBlendedBufferInfo* _getSkelAnimTempBufferInfo(void); /** Advanced method to get the temp buffer information for software morph animation. */ TempBlendedBufferInfo* _getVertexAnimTempBufferInfo(void); /// Override to return specific type flag. uint32 getTypeFlags(void) const; /// Retrieve the VertexData which should be used for GPU binding. VertexData* getVertexDataForBinding(void); /// Identify which vertex data we should be sending to the renderer. enum VertexDataBindChoice { BIND_ORIGINAL, BIND_SOFTWARE_SKELETAL, BIND_SOFTWARE_MORPH, BIND_HARDWARE_MORPH }; /// Choose which vertex data to bind to the renderer. VertexDataBindChoice chooseVertexDataForBinding(bool hasVertexAnim); /** Are buffers already marked as vertex animated? */ bool _getBuffersMarkedForAnimation(void) const { return mVertexAnimationAppliedThisFrame; } /** Mark just this vertex data as animated. */ void _markBuffersUsedForAnimation(void); /** Has this Entity been initialised yet? @remarks If this returns false, it means this Entity hasn't been completely constructed yet from the underlying resources (Mesh, Skeleton), which probably means they were delay-loaded and aren't available yet. This Entity won't render until it has been successfully initialised, nor will many of the manipulation methods function. */ bool isInitialised(void) const { return mInitialised; } /** Try to initialise the Entity from the underlying resources. @remarks This method builds the internal structures of the Entity based on it resources (Mesh, Skeleton). This may or may not succeed if the resources it references have been earmarked for background loading, so you should check isInitialised afterwards to see if it was successful. @param forceReinitialise If @c true, this forces the Entity to tear down it's internal structures and try to rebuild them. Useful if you changed the content of a Mesh or Skeleton at runtime. */ void _initialise(bool forceReinitialise = false); /** Tear down the internal structures of this Entity, rendering it uninitialised. */ void _deinitialise(void); /** Resource::Listener hook to notify Entity that a delay-loaded Mesh is complete. */ void backgroundLoadingComplete(Resource* res); /// @copydoc MovableObject::visitRenderables void visitRenderables(Renderable::Visitor* visitor, bool debugRenderables = false); /** Get the LOD strategy transformation of the mesh LOD factor. */ Real _getMeshLodFactorTransformed() const; /** Entity's skeleton's AnimationState will not be automatically updated when set to true. Useful if you wish to handle AnimationState updates manually. */ void setSkipAnimationStateUpdate(bool skip) { mSkipAnimStateUpdates = skip; } /** Entity's skeleton's AnimationState will not be automatically updated when set to true. Useful if you wish to handle AnimationState updates manually. */ bool getSkipAnimationStateUpdate() const { return mSkipAnimStateUpdates; } /** The skeleton of the main entity will be updated even if the an LOD entity is being displayed. useful if you have entities attached to the main entity. Otherwise position of attached entities will not be updated. */ void setAlwaysUpdateMainSkeleton(bool update) { mAlwaysUpdateMainSkeleton = update; } /** The skeleton of the main entity will be updated even if the an LOD entity is being displayed. useful if you have entities attached to the main entity. Otherwise position of attached entities will not be updated. */ bool getAlwaysUpdateMainSkeleton() const { return mAlwaysUpdateMainSkeleton; } }; /** Factory object for creating Entity instances */ class _OgreExport EntityFactory : public MovableObjectFactory { protected: MovableObject* createInstanceImpl( const String& name, const NameValuePairList* params); public: EntityFactory() {} ~EntityFactory() {} static String FACTORY_TYPE_NAME; const String& getType(void) const; void destroyInstance( MovableObject* obj); }; /** @} */ /** @} */ } // namespace Ogre #include "OgreHeaderSuffix.h" #endif // __Entity_H__