bool ParticleChannelInt::Append(IObject* channel)
{
	IParticleChannelAmountR* iAmount = GetParticleChannelAmountRInterface(channel);
	DbgAssert(iAmount);
	if (iAmount == NULL) return false;
	int num = iAmount->Count();
	if (num <= 0) return true;

	IParticleChannelIntR* iInt = (IParticleChannelIntR*)(channel->GetInterface(GetReadID()));
	DbgAssert(iInt);
	if (iInt == NULL) return false;

	int oldCount = Count();
	if (!AppendNum(num)) return false;

	for(int i=0; i<num; i++)
		SetValue(oldCount + i, iInt->GetValue(i));

	return true;
}
void AlembicPoints::ReadShapeFromOperator( IParticleGroup *particleGroup, PFSimpleOperator *pSimpleOperator, int particleId, TimeValue ticks, ShapeType &type, Abc::uint16_t &instanceId, float &animationTime)
{
	if(!pSimpleOperator){
		return;
	}

	if (pSimpleOperator->ClassID() == PFOperatorSimpleShape_Class_ID)
    {
        IParamBlock2 *pblock = pSimpleOperator->GetParamBlockByID(0);
        int nShapeId = pblock->GetInt(PFlow_kSimpleShape_shape, ticks);

        switch(nShapeId)
        {
        case PFlow_kSimpleShape_shape_pyramid:
            type = ShapeType_Cone;
            break;
        case PFlow_kSimpleShape_shape_cube:
            type = ShapeType_Box;
            break;
        case PFlow_kSimpleShape_shape_sphere:
            type = ShapeType_Sphere;
            break;
        case PFlow_kSimpleShape_shape_vertex:
            type = ShapeType_Point;
            break;
		default:
			type = ShapeType_Point;
        }
    }
	else if (pSimpleOperator->ClassID() == PFOperatorShapeLib_Class_ID)
	{
        IParamBlock2 *pblock = pSimpleOperator->GetParamBlockByID(0);
		int nDimension = pblock->GetInt(PFlow_kShapeLibary_dimensionType, ticks);
		if(nDimension == PFlow_kShapeLibrary_dimensionType_2D){
			int n2DShapeId = pblock->GetInt(PFlow_kShapeLibary_2DType, ticks);
			if( n2DShapeId == PFlow_kShapeLibrary_dimensionType_2D_square){
				type = ShapeType_Rectangle;
			}
			else{
				ESS_LOG_INFO("Unsupported shape type.");
				type = ShapeType_Point;
			}
		}
		else if(nDimension == PFlow_kShapeLibrary_dimensionType_3D){
			int n3DShapeId = pblock->GetInt(PFlow_kShapeLibary_3DType, ticks);
			if(n3DShapeId == PFlow_kShapeLibary_3DType_cube){
				type = ShapeType_Box;
			}
			else if(n3DShapeId == PFlow_kShapeLibary_3DType_Sphere20sides ||
					n3DShapeId == PFlow_kShapeLibary_3DType_Sphere80sides){
				type = ShapeType_Sphere;
			}
			else{
				ESS_LOG_INFO("Unsupported shape type.");
				type = ShapeType_Point;
			}
		
			//ShapeType_Cylinder unsupported
			//ShapeType_Cone unsupported
			//ShapeType_Disc unsupported
			//ShapeType_NbElements unsupported
		}
		else{
			ESS_LOG_INFO("Unknown dimension.");
			type = ShapeType_Point;
		}
			
		//int nNumParams = pblock->NumParams();

		//for(int i=0; i<nNumParams; i++){
	
		//	ParamID id = pblock->IndextoID(i);
		//	MSTR paramStr = pblock->GetLocalName(id, 0);
		//	int n = 0;
		//
		//}

	}
    else if (pSimpleOperator->ClassID() == PFOperatorInstanceShape_Class_ID)
    {
        // Assign animation time and shape here
        IParamBlock2 *pblock = pSimpleOperator->GetParamBlockByID(0);
        INode *pNode = pblock->GetINode(PFlow_kInstanceShape_objectMaxscript, ticks);
        if (pNode == NULL || pNode->GetName() == NULL)
        {
            return;
        }
        
        type = ShapeType_Instance;

		bool bFlatten = GetCurrentJob()->GetOption("flattenHierarchy");
		std::string nodePath = getNodeAlembicPath( EC_MCHAR_to_UTF8( pNode->GetName() ), bFlatten);

        // Find if the name is alerady registered, otherwise add it to the list
   //     instanceId = FindInstanceName(nodePath);
   //     if (instanceId == USHRT_MAX)
   //     {
			//mInstanceNames.push_back(nodePath);
   //         instanceId = (Abc::uint16_t)mInstanceNames.size()-1;
   //     }

        // Determine if we have an animated shape
        BOOL animatedShape = pblock->GetInt(PFlow_kInstanceShape_animatedShape);
	    BOOL acquireShape = pblock->GetInt(PFlow_kInstanceShape_acquireShape);

        if (!animatedShape && !acquireShape)
        {
            return;
        }

        // Get the necesary particle channels to grab the current time values
        ::IObject *pCont = particleGroup->GetParticleContainer();
        if (!pCont)
        {
            return;
        }

        // Get synch values that we are interested in fromt the param block
        int syncType = pblock->GetInt(PFlow_kInstanceShape_syncType);
        BOOL syncRandom = pblock->GetInt(PFlow_kInstanceShape_syncRandom);

        IParticleChannelPTVR* chTime = GetParticleChannelTimeRInterface(pCont);
        if (chTime == NULL) 
        {
            return; // can't find particle times in the container
        }

        IChannelContainer* chCont = GetChannelContainerInterface(pCont);
        if (chCont == NULL) 
        {
            return;  // can't get access to ChannelContainer interface
        }

        IParticleChannelPTVR* chBirthTime = NULL;
        IParticleChannelPTVR* chEventStartR = NULL;
        bool initEventStart = false;

        if (syncType == PFlow_kInstanceShape_syncBy_particleAge) 
        {
            chBirthTime = GetParticleChannelBirthTimeRInterface(pCont);
            if (chBirthTime == NULL) 
            {
                return; // can't read particle age
            }
        }
        else if (syncType == PFlow_kInstanceShape_syncBy_eventStart) 
        {
            chEventStartR = GetParticleChannelEventStartRInterface(pCont);
             
            if (chEventStartR == NULL) 
            {
                return; // can't read event start time
            }
        }

        IParticleChannelIntR* chLocalOffR = NULL;
        bool initLocalOff = false;

        // acquire LocalOffset particle channel; if not present then create it.
        if (syncRandom) 
        {
            chLocalOffR =  (IParticleChannelIntR*)chCont->GetPrivateInterface(PARTICLECHANNELLOCALOFFSETR_INTERFACE, pSimpleOperator);
        }

        // get new shape from the source
        PreciseTimeValue time = chTime->GetValue(particleId);
        switch(syncType)
        {
        case PFlow_kInstanceShape_syncBy_absoluteTime:
            break;
        case PFlow_kInstanceShape_syncBy_particleAge:
            time -= chBirthTime->GetValue(particleId);
            break;
        case PFlow_kInstanceShape_syncBy_eventStart:
            time -= chEventStartR->GetValue(particleId);
            break;
        default:
            break;
        }

        if (syncRandom) 
        {
            if (chLocalOffR != NULL)
                time += chLocalOffR->GetValue(particleId);
        }
		
		//timeValueMap::iterator it = mTimeValueMap.find(time);
		//if( it != mTimeValueMap.end() ){
		//	ESS_LOG_WARNING("sampleTime already seen.");
		//}
		//else{
		//	mTimeValueMap[time] = true;
		//	mTimeSamplesCount++;
		//	ESS_LOG_WARNING("sampleTime: "<<(float)time<<" totalSamples: "<<mTimeSamplesCount);
		//}

        TimeValue t = TimeValue(time);
        animationTime = (float)GetSecondsFromTimeValue(t);
    }
	else if (pSimpleOperator->ClassID() == PFOperatorMarkShape_Class_ID)
	{
		ESS_LOG_INFO("Shape Mark operator not supported.");
	}
	else if (pSimpleOperator->ClassID() == PFOperatorFacingShape_Class_ID)
	{
		ESS_LOG_INFO("Shape Facing operator not supported.");
	}

}