// Meshes
Mesh* ResourceManager::getSpriteMesh(int width, int height, float pivotx, float pivoty, float uvwidth, float uvheight, int circle, int which)
{
	char buf[64]; // should be big enough: "1024x1024_0.50000x0.50000_1.00000x1.00000_0_60"
	sprintf(buf, "%dx%d_%.5fx%.5f_%.5fx%.5f_%d_%d", width, height, pivotx, pivoty, uvwidth, uvheight, circle, which);
	std::string meshname(buf);

	if (_meshes[meshname] != NULL) {
		//std::cout << "return existing resource: " << meshname << " (mesh)" << std::endl;
		return _meshes[meshname];
	} else {
		Mesh* m = new Mesh();
		if (circle != 0) {
			if (which >= 0) {
				m->generateSegmentMesh(width/2, circle, which);
			} else {
				m->generateCircleMesh(width/2, circle, uvwidth, uvheight);
			}
		} else {
			m->generateSpriteMesh(width, height, pivotx, pivoty, uvwidth, uvheight);
		}
		_meshes[meshname] = m;

		std::cout << "return new resource: " << meshname << " (mesh)" << std::endl;
		return m;
	}

	return NULL;
}
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bool CMainFrame::_CreateMeshPanel( CImageList& imageList, Ogre::StringVectorPtr& meshNames )
{
	if (!m_resourceSelector.Create(WS_CHILD|WS_VISIBLE, CRect(200,100,400,300), this, IDS_ResourceSelector))
		return false;

	m_resourceSelector.SetOwner(this);
	m_resourceSelector.SetIconSize(CSize(MESH_ICON_SIZE, MESH_ICON_SIZE));
	CXTPTaskPanelGroup* pGroup = m_resourceSelector.AddGroup(IDS_ResourceSelector_Mesh);

	int itemCount = imageList.GetImageCount();
 	m_resourceSelector.GetImageManager()->SetImageList(imageList.Detach(), 0);
	
	for (int i=0; i<itemCount; ++i)
	{
		std::wstring meshname(Utility::EngineToUnicode(meshNames->at(i)));
		meshname.erase(meshname.length()-5);
		// Add folder entries
		CXTPTaskPanelGroupItem* pItem = pGroup->AddLinkItem(i, 0);
		pItem->SetIconIndex(i);
		pItem->SetCaption(meshname.c_str());
	}
					
	m_resourceSelector.SetBehaviour(xtpTaskPanelBehaviourList);
	m_resourceSelector.SetSelectItemOnFocus(TRUE);
	m_resourceSelector.SetMultiColumn(TRUE);
	m_resourceSelector.SetColumnWidth(RES_SELECTOR_COLUMN_WIDTH);
	m_resourceSelector.GetAt(0)->SetExpanded(TRUE);
	//拖拽支持
	m_resourceSelector.AllowDrag(xtpTaskItemAllowDragCopyOutsideControl);

	return true;
}
  /** \brief Processes a single URDF link, creates renderable for it */
  void URDFRenderer::process_link (boost::shared_ptr<urdf::Link> link)
  {
    for(std::vector<boost::shared_ptr<urdf::Visual> >::iterator it=link->visual_array.begin();
        it != link->visual_array.end();
        ++it)
    {
      boost::shared_ptr<urdf::Visual> visual = *it;

      if (visual.get() == NULL || visual->geometry.get() == NULL)
        continue;

      ROS_DEBUG_STREAM("Processing link: "<<link->name);

      boost::shared_ptr<Renderable> r;
      if (visual->geometry->type == urdf::Geometry::BOX)
      {
        boost::shared_ptr<urdf::Box> box = boost::dynamic_pointer_cast<urdf::Box> (visual->geometry);
        r.reset (new RenderableBox (box->dim.x, box->dim.y, box->dim.z));
      }
      else if (visual->geometry->type == urdf::Geometry::CYLINDER)
      {
        boost::shared_ptr<urdf::Cylinder> cylinder = boost::dynamic_pointer_cast<urdf::Cylinder> (visual->geometry);
        r.reset (new RenderableCylinder (cylinder->radius, cylinder->length));
      }
      else if (visual->geometry->type == urdf::Geometry::SPHERE)
      {
        boost::shared_ptr<urdf::Sphere> sphere = boost::dynamic_pointer_cast<urdf::Sphere> (visual->geometry);
        r.reset (new RenderableSphere (sphere->radius));
      }
      else if (visual->geometry->type == urdf::Geometry::MESH)
      {
        boost::shared_ptr<urdf::Mesh> mesh = boost::dynamic_pointer_cast<urdf::Mesh> (visual->geometry);
        std::string meshname (mesh->filename);
        RenderableMesh* rm = new RenderableMesh (meshname);
        rm->setScale (mesh->scale.x, mesh->scale.y, mesh->scale.z);
        r.reset (rm);
      }
      r->setLinkName (tf_prefix_+ "/" + link->name);
      urdf::Vector3 origin = visual->origin.position;
      urdf::Rotation rotation = visual->origin.rotation;
      r->link_offset = tf::Transform (
          tf::Quaternion (rotation.x, rotation.y, rotation.z, rotation.w).normalize (),
          tf::Vector3 (origin.x, origin.y, origin.z));
      if (visual && (visual->material))
        r->color  = visual->material->color;
      renderables_.push_back (r); 
    }
  }
void PhysicsSim::drawVector(Vector3D init, Vector3D end, Color c)
{
	Vector3D vec = end-init;
	float length = vec.getLength();

	stringw meshname("ArrowMesh");
	meshname += (int)arrows.size();
	IAnimatedMesh* arrow = smgr->addArrowMesh (meshname, c, c, 4, 8, length, (length - 0.4 < 0.0) ? length*0.4 : (length-0.4));
	IAnimatedMeshSceneNode *arrownode =	smgr->addAnimatedMeshSceneNode(arrow);

	arrownode->setPosition(init);

	//arrownode->setScale(vector3df(1.0, length, 1.0));

	vec.normalize();
	quaternion q;
	q.rotationFromTo(vector3df(0,1,0), vec);
	vector3df rot;
	q.toEuler(rot);

	arrownode->setRotation(vector3df(rot.X*180.0/M_PI, rot.Y*180.0/M_PI, rot.Z*180.0/M_PI));

	arrows.push_back(arrownode);
}
bool PhysicsSim::loadPhysicalObjects(PhysicalStructure &structure, stringc mesh_filename, Vector3D position, bool lock2d)
{

	stringc physics_filename = mesh_filename;
	physics_filename.remove(".dae");
	physics_filename.append(".bullet");
	physics_filename = mediaDirectory + physics_filename;

	if(smgr->getFileSystem()->existFile(physics_filename))
	{
		stringw collada_filename = smgr->getFileSystem()->getAbsolutePath(mediaDirectory) + mesh_filename;

		if(smgr->getFileSystem()->existFile(collada_filename))
		{
			btBlenderImporter* fileLoader = new btBlenderImporter(position);
			fileLoader->loadFile(physics_filename.c_str());

			smgr->getMesh(collada_filename);

			for(int i = 0; i < fileLoader->getNumRigidBodies(); i++)
			{
				btRigidBody* rb = (btRigidBody*)fileLoader->getRigidBodyByIndex(i);

				if(lock2d)
				{
					rb->setLinearFactor(btVector3(1,0,1));
					rb->setAngularFactor(btVector3(0,1,0));
				}

				stringc meshname(fileLoader->getNameForPointer(rb));

				stringc bodyname = meshname;
				stringc tex_file = meshname;

				s32 underline = tex_file.findFirst('_');
				if(underline < 0)
					underline = tex_file.findFirst('.');
				if(underline > -1)
					tex_file = tex_file.subString(0, underline+1);

				tex_file = mediaDirectory + tex_file + ".jpg";

				if(fileLoader->getNumRigidBodies() > 1)
					meshname = collada_filename + "#" + meshname + "-mesh";
				else
					meshname = collada_filename;
				IAnimatedMesh *mesh = smgr->getMeshCache()->getMeshByName(meshname);

				if(mesh){
					IAnimatedMeshSceneNode* node = smgr->addAnimatedMeshSceneNode(mesh, smgr->getRootSceneNode());
					node->setMaterialFlag(EMF_LIGHTING, true);
					node->setMaterialFlag(EMF_TEXTURE_WRAP, false);
					node->setMaterialFlag(EMF_BACK_FACE_CULLING, false);
					node->addShadowVolumeSceneNode(0,-1,false);

					if(smgr->getFileSystem()->existFile(tex_file))
					{
						node->setMaterialTexture(0, driver->getTexture(tex_file));
					}

					PhysicalObject* pobj = new PhysicalObject(node, rb, bodyname);
					objects_list.push_back(pobj);
					structure.bodies.push_back(pobj);
					dynamicsWorld->addRigidBody(pobj->getRigidBody());

				}

			}


			for(int i = 0; i < fileLoader->getNumConstraints(); i++)
			{
				Joint* jt = new Joint(fileLoader->getConstraintByIndex(i));
				joints_list.push_back(jt);
				structure.joints.push_back(jt);
				btTypedConstraint* constr = jt->getConstraint();
				dynamicsWorld->addConstraint(constr, true);
			}

			delete fileLoader;

			updateObjects();
			return true;
		}
	}

	return false;

}