C++ OgreWorldPtr::OgreSceneManager方法代码示例

void EC_Mesh::RemoveMesh()
{
    OgreWorldPtr world = world_.lock();

    if (entity_)
    {
        emit MeshAboutToBeDestroyed();
        
        RemoveAllAttachments();
        DetachEntity();
        
        Ogre::SceneManager* sceneMgr = world->OgreSceneManager();
        sceneMgr->destroyEntity(entity_);
        
        entity_ = 0;
    }
    
    if (!cloned_mesh_name_.empty())
    {
        try
        {
            Ogre::MeshManager::getSingleton().remove(cloned_mesh_name_);
        }
        catch(Ogre::Exception& e)
        {
            LogWarning("EC_Mesh::RemoveMesh: Could not remove cloned mesh:" + std::string(e.what()));
        }
        
        cloned_mesh_name_ = std::string();
    }
}

EC_Mesh::EC_Mesh(Scene* scene) :
    IComponent(scene),
    nodeTransformation(this, "Transform", Transform(float3(0,0,0),float3(0,0,0),float3(1,1,1))),
    meshRef(this, "Mesh ref", AssetReference("", "OgreMesh")),
    skeletonRef(this, "Skeleton ref", AssetReference("", "OgreSkeleton")),
    meshMaterial(this, "Mesh materials", AssetReferenceList("OgreMaterial")),
    drawDistance(this, "Draw distance", 0.0f),
    castShadows(this, "Cast shadows", false),
    entity_(0),
    attached_(false)
{
    if (scene)
        world_ = scene->GetWorld<OgreWorld>();

    static AttributeMetadata drawDistanceData("", "0", "10000");
    drawDistance.SetMetadata(&drawDistanceData);

    static AttributeMetadata materialMetadata;
    materialMetadata.elementType = "assetreference";
    meshMaterial.SetMetadata(&materialMetadata);

    meshAsset = AssetRefListenerPtr(new AssetRefListener());
    skeletonAsset = AssetRefListenerPtr(new AssetRefListener());
    
    OgreWorldPtr world = world_.lock();
    if (world)
    {
        Ogre::SceneManager* sceneMgr = world->OgreSceneManager();
        adjustment_node_ = sceneMgr->createSceneNode(world->GetUniqueObjectName("EC_Mesh_adjustment_node"));

        connect(this, SIGNAL(ParentEntitySet()), SLOT(UpdateSignals()));
        connect(meshAsset.get(), SIGNAL(Loaded(AssetPtr)), this, SLOT(OnMeshAssetLoaded(AssetPtr)), Qt::UniqueConnection);
        connect(skeletonAsset.get(), SIGNAL(Loaded(AssetPtr)), this, SLOT(OnSkeletonAssetLoaded(AssetPtr)), Qt::UniqueConnection);
    }
}

void EC_Hydrax::Create()
{
    PROFILE(EC_Hydrax_Create);
    SAFE_DELETE(impl);

    if (!framework || framework->IsHeadless())
        return;

    try
    {
        if (!ParentScene())
        {
            LogError("EC_Hydrax: no parent scene. Cannot be created.");
            return;
        }

        OgreWorldPtr w = ParentScene()->Subsystem<OgreWorld>();
        assert(w);

        connect(w->Renderer(), SIGNAL(MainCameraChanged(Entity *)), SLOT(OnActiveCameraChanged(Entity *)), Qt::UniqueConnection);
        Entity *mainCamera = w->Renderer()->MainCamera();
        if (!mainCamera)
        {
            // Can't create Hydrax just yet, no main camera set (Hydrax needs a valid camera to initialize).
            // This error is benign, and Hydrax will now postpone its initialization to until a camera is set.
            // (see OnActiveCameraChanged()).
            LogDebug("Cannot create EC_Hydrax: No main camera set!");
            return;
        }

        Ogre::Camera *cam = mainCamera->GetComponent<EC_Camera>()->GetCamera();
        impl = new EC_HydraxImpl();
        impl->hydrax = new Hydrax::Hydrax(w->OgreSceneManager(), cam, w->Renderer()->MainViewport());

        // Using projected grid module by default
        Hydrax::Module::ProjectedGrid *module = new Hydrax::Module::ProjectedGrid(impl->hydrax, new Hydrax::Noise::Perlin(),
            Ogre::Plane(Ogre::Vector3::UNIT_Y, Ogre::Vector3::ZERO), Hydrax::MaterialManager::NM_VERTEX);
        impl->hydrax->setModule(module);
        impl->module = module;

        // Load all parameters from config file, but position attribute is always authoritative for the position.
        RequestConfigAsset();

        connect(framework->Frame(), SIGNAL(PostFrameUpdate(float)), SLOT(Update(float)), Qt::UniqueConnection);
    }
    catch(const Ogre::Exception &e)
    {
        // Currently if we try to create more than one Hydrax component we end up here due to Ogre internal name collision.
        LogError("Could not create EC_Hydrax: " + std::string(e.what()));
    }
}

void EC_HoveringText::ShowMessage(const QString &text)
{
    if (!ViewEnabled())
        return;
    if (world_.expired())
        return;
    
    OgreWorldPtr world = world_.lock();
    Ogre::SceneManager *scene = world->OgreSceneManager();
    assert(scene);
    if (!scene)
        return;

    Entity* entity = ParentEntity();
    assert(entity);
    if (!entity)
        return;

    EC_Placeable *node = entity->GetComponent<EC_Placeable>().get();
    if (!node)
        return;

    Ogre::SceneNode *sceneNode = node->GetSceneNode();
    assert(sceneNode);
    if (!sceneNode)
        return;

    // Create billboard if it doesn't exist.
    if (!billboardSet_)
    {
        billboardSet_ = scene->createBillboardSet(world->GetUniqueObjectName("EC_HoveringText"), 1);
        assert(billboardSet_);
        billboardSet_->Ogre::MovableObject::setUserAny(Ogre::Any(static_cast<IComponent *>(this)));
        billboardSet_->Ogre::Renderable::setUserAny(Ogre::Any(static_cast<IComponent *>(this)));
        sceneNode->attachObject(billboardSet_);
    }

    if (billboardSet_ && !billboard_)
    {
        billboard_ = billboardSet_->createBillboard(Ogre::Vector3(0, 0, 0.7f));

        SetBillboardSize(width.Get(), height.Get());
        SetPosition(position.Get());
    }

    Redraw();
}

EC_Mesh::~EC_Mesh()
{
    if (world_.expired())
    {
        // Log error only if there was an Ogre object to be destroyed
        if (entity_)
            LogError("EC_Mesh: World has expired, skipping uninitialization!");
        return;
    }
    OgreWorldPtr world = world_.lock();

    RemoveMesh();

    if (adjustment_node_)
    {
        Ogre::SceneManager* sceneMgr = world->OgreSceneManager();
        sceneMgr->destroySceneNode(adjustment_node_);
        adjustment_node_ = 0;
    }
}

void EC_Mesh::RemoveAttachmentMesh(uint index)
{
    OgreWorldPtr world = world_.lock();
    
    if (!entity_)
        return;
        
    if (index >= attachment_entities_.size())
        return;
    
    Ogre::SceneManager* sceneMgr = world->OgreSceneManager();
    
    if (attachment_entities_[index] && attachment_nodes_[index])
    {
        // See if attached to a tagpoint or an ordinary node
        Ogre::TagPoint* tag = dynamic_cast<Ogre::TagPoint*>(attachment_nodes_[index]);
        if (tag)
        {
            entity_->detachObjectFromBone(attachment_entities_[index]);
        }
        else
        {
            Ogre::SceneNode* scenenode = dynamic_cast<Ogre::SceneNode*>(attachment_nodes_[index]);
            if (scenenode)
            {
                scenenode->detachObject(attachment_entities_[index]);
                sceneMgr->destroySceneNode(scenenode);
            }
        }
        
        attachment_nodes_[index] = 0;
    }
    if (attachment_entities_[index])
    {
        if (attachment_entities_[index]->sharesSkeletonInstance())
            attachment_entities_[index]->stopSharingSkeletonInstance();
        sceneMgr->destroyEntity(attachment_entities_[index]);
        attachment_entities_[index] = 0;
    }
}

bool EC_Mesh::SetAttachmentMesh(uint index, const std::string& mesh_name, const std::string& attach_point, bool share_skeleton)
{
    if (!ViewEnabled())
        return false;
    OgreWorldPtr world = world_.lock();

    if (!entity_)
    {
        LogError("EC_Mesh::SetAttachmentMesh: No mesh entity created yet, can not create attachments!");
        return false;
    }
    
    Ogre::SceneManager* sceneMgr = world->OgreSceneManager();
    
    size_t oldsize = attachment_entities_.size();
    size_t newsize = index + 1;
    
    if (oldsize < newsize)
    {
        attachment_entities_.resize(newsize);
        attachment_nodes_.resize(newsize);
        for(uint i = oldsize; i < newsize; ++i)
        {
            attachment_entities_[i] = 0;
            attachment_nodes_[i] = 0;
        }
    }
    
    RemoveAttachmentMesh(index);
    
    Ogre::Mesh* mesh = PrepareMesh(mesh_name, false);
    if (!mesh)
        return false;

    if (share_skeleton)
    {
        // If sharing a skeleton, force the attachment mesh to use the same skeleton
        // This is theoretically quite a scary operation, for there is possibility for things to go wrong
        Ogre::SkeletonPtr entity_skel = entity_->getMesh()->getSkeleton();
        if (entity_skel.isNull())
        {
            LogError("EC_Mesh::SetAttachmentMesh: Cannot share skeleton for attachment, not found");
            return false;
        }
        try
        {
            mesh->_notifySkeleton(entity_skel);
        }
        catch(const Ogre::Exception &/*e*/)
        {
            LogError("EC_Mesh::SetAttachmentMesh: Could not set shared skeleton for attachment");
            return false;
        }
    }

    try
    {
        QString entityName = QString("EC_Mesh_attach") + QString::number(index);
        attachment_entities_[index] = sceneMgr->createEntity(world->GetUniqueObjectName(entityName.toStdString()), mesh->getName());
        if (!attachment_entities_[index])
        {
            LogError("EC_Mesh::SetAttachmentMesh: Could not set attachment mesh " + mesh_name);
            return false;
        }

        attachment_entities_[index]->setRenderingDistance(drawDistance.Get());
        attachment_entities_[index]->setCastShadows(castShadows.Get());
        attachment_entities_[index]->setUserAny(entity_->getUserAny());
        // Set UserAny also on subentities
        for(uint i = 0; i < attachment_entities_[index]->getNumSubEntities(); ++i)
            attachment_entities_[index]->getSubEntity(i)->setUserAny(entity_->getUserAny());

        Ogre::Bone* attach_bone = 0;
        if (!attach_point.empty())
        {
            Ogre::Skeleton* skel = entity_->getSkeleton();
            if (skel && skel->hasBone(attach_point))
                attach_bone = skel->getBone(attach_point);
        }
        if (attach_bone)
        {
            Ogre::TagPoint* tag = entity_->attachObjectToBone(attach_point, attachment_entities_[index]);
            attachment_nodes_[index] = tag;
        }
        else
        {
            QString nodeName = QString("EC_Mesh_attachment_") + QString::number(index);
            Ogre::SceneNode* node = sceneMgr->createSceneNode(world->GetUniqueObjectName(nodeName.toStdString()));
            node->attachObject(attachment_entities_[index]);
            adjustment_node_->addChild(node);
            attachment_nodes_[index] = node;
        }
        
        if (share_skeleton && entity_->hasSkeleton() && attachment_entities_[index]->hasSkeleton())
        {
            attachment_entities_[index]->shareSkeletonInstanceWith(entity_);
        }
    }
    catch(Ogre::Exception& e)
    {
//.........这里部分代码省略.........

bool EC_Mesh::SetMeshWithSkeleton(const std::string& mesh_name, const std::string& skeleton_name, bool clone)
{
    if (!ViewEnabled())
        return false;
    OgreWorldPtr world = world_.lock();

    Ogre::SkeletonPtr skel = Ogre::SkeletonManager::getSingleton().getByName(AssetAPI::SanitateAssetRef(skeleton_name));
    if (skel.isNull())
    {
        LogError("EC_Mesh::SetMeshWithSkeleton: Could not set skeleton " + skeleton_name + " to mesh " + mesh_name + ": not found");
        return false;
    }
    
    RemoveMesh();

    Ogre::SceneManager* sceneMgr = world->OgreSceneManager();
    
    Ogre::Mesh* mesh = PrepareMesh(mesh_name, clone);
    if (!mesh)
        return false;
    
    try
    {
        mesh->_notifySkeleton(skel);
//        LogDebug("Set skeleton " + skeleton_name + " to mesh " + mesh_name);
    }
    catch(Ogre::Exception& e)
    {
        LogError("EC_Mesh::SetMeshWithSkeleton: Could not set skeleton " + skeleton_name + " to mesh " + mesh_name + ": " + std::string(e.what()));
        return false;
    }
    
    try
    {
        entity_ = sceneMgr->createEntity(world->GetUniqueObjectName("EC_Mesh_entwithskel"), mesh->getName());
        if (!entity_)
        {
            LogError("EC_Mesh::SetMeshWithSkeleton: Could not set mesh " + mesh_name);
            return false;
        }
        
        entity_->setRenderingDistance(drawDistance.Get());
        entity_->setCastShadows(castShadows.Get());
        entity_->setUserAny(Ogre::Any(static_cast<IComponent *>(this)));
        // Set UserAny also on subentities
        for(uint i = 0; i < entity_->getNumSubEntities(); ++i)
            entity_->getSubEntity(i)->setUserAny(entity_->getUserAny());
        
        if (entity_->hasSkeleton())
        {
            Ogre::SkeletonInstance* skel = entity_->getSkeleton();
            // Enable cumulative mode on skeletal animations
            if (skel)
                skel->setBlendMode(Ogre::ANIMBLEND_CUMULATIVE);
        }
    }
    catch(Ogre::Exception& e)
    {
        LogError("EC_Mesh::SetMeshWithSkeleton: Could not set mesh " + mesh_name + ": " + std::string(e.what()));
        return false;
    }
    
    AttachEntity();
    
    emit MeshChanged();
    
    return true;
}

bool EC_Mesh::SetMesh(QString meshResourceName, bool clone)
{
    if (!ViewEnabled())
        return false;
    
    OgreWorldPtr world = world_.lock();

    std::string mesh_name = meshResourceName.trimmed().toStdString();

    RemoveMesh();

    // If placeable is not set yet, set it manually by searching it from the parent entity
    if (!placeable_)
    {
        Entity* entity = ParentEntity();
        if (entity)
        {
            ComponentPtr placeable = entity->GetComponent(EC_Placeable::TypeNameStatic());
            if (placeable)
                placeable_ = placeable;
        }
    }
    
    Ogre::SceneManager* sceneMgr = world->OgreSceneManager();
    
    Ogre::Mesh* mesh = PrepareMesh(mesh_name, clone);
    if (!mesh)
        return false;
    
    try
    {
        entity_ = sceneMgr->createEntity(world->GetUniqueObjectName("EC_Mesh_entity"), mesh->getName());
        if (!entity_)
        {
            LogError("EC_Mesh::SetMesh: Could not set mesh " + mesh_name);
            return false;
        }
        
        entity_->setRenderingDistance(drawDistance.Get());
        entity_->setCastShadows(castShadows.Get());
        entity_->setUserAny(Ogre::Any(static_cast<IComponent *>(this)));
        // Set UserAny also on subentities
        for(uint i = 0; i < entity_->getNumSubEntities(); ++i)
            entity_->getSubEntity(i)->setUserAny(entity_->getUserAny());

        if (entity_->hasSkeleton())
        {
            Ogre::SkeletonInstance* skel = entity_->getSkeleton();
            // Enable cumulative mode on skeletal animations
            if (skel)
                skel->setBlendMode(Ogre::ANIMBLEND_CUMULATIVE);
        }
        
        // Make sure adjustment node is uptodate
        Transform newTransform = nodeTransformation.Get();
        adjustment_node_->setPosition(newTransform.pos);
        adjustment_node_->setOrientation(newTransform.Orientation());
        
        // Prevent Ogre exception from zero scale
        adjustment_node_->setScale(Max(newTransform.scale, float3::FromScalar(0.0000001f)));
            
        // Force a re-apply of all materials to this new mesh.
        ApplyMaterial();
    }
    catch(Ogre::Exception& e)
    {
        LogError("EC_Mesh::SetMesh: Could not set mesh " + mesh_name + ": " + std::string(e.what()));
        return false;
    }
    
    AttachEntity();
    emit MeshChanged();
    
    return true;
}