/////////////////////////////////////////////////////
/////////////////////////////////////////////////////
//
//		            Update Nodal Path
//
/////////////////////////////////////////////////////
////////////////////////////////////////////////////

#include "CKAll.h"
#include "N3dGraph.h"


CKObjectDeclaration	*FillBehaviorUpdateNodalPathDecl();
CKERROR CreateUpdateNodalPathProto(CKBehaviorPrototype **);
int UpdateNodalPath(const CKBehaviorContext& behcontext);


CKObjectDeclaration	*FillBehaviorUpdateNodalPathDecl()
{
	CKObjectDeclaration *od = CreateCKObjectDeclaration("Update Nodal Path");	
	od->SetDescription("Reevaluates the nodes distance of the given nodal path.");
	/* rem:
	<SPAN CLASS=in>In: </SPAN>triggers the process.<BR>
	<SPAN CLASS=out>Out: </SPAN>is activated when the process is completed.<BR>
	<BR>
	<SPAN CLASS=pin>Nodal Path: </SPAN>the nodal path.<BR>
	<BR>
	This building block must be used if you move in real time the nodes 
	of a nodal path, to reevaluate the distance between nodes. 
	If you don't, you'll not be sure to always get the shortest path using the "GoToNode" building block.
	*/
	od->SetCategory("3D Transformations/Nodal Path");
	od->SetType( CKDLL_BEHAVIORPROTOTYPE);
	od->SetGuid(CKGUID(0x21647449,0x51126c00));
	od->SetAuthorGuid(VIRTOOLS_GUID);
	od->SetAuthorName("Virtools");
	od->SetVersion(0x00010000);
	od->SetCreationFunction(CreateUpdateNodalPathProto);
	od->SetCompatibleClassId(CKCID_BEOBJECT);
	return od;
}


CKERROR CreateUpdateNodalPathProto(CKBehaviorPrototype **pproto)
{
	CKBehaviorPrototype *proto = CreateCKBehaviorPrototype("Update Nodal Path");
	if(!proto) return CKERR_OUTOFMEMORY;

	proto->DeclareInput("In");
	proto->DeclareOutput("Out");

	proto->DeclareInParameter("Nodal Path",CKPGUID_GROUP);
	
	proto->SetFlags(CK_BEHAVIORPROTOTYPE_NORMAL);
	proto->SetFunction(UpdateNodalPath);

	*pproto = proto;
	return CK_OK;
}


int UpdateNodalPath(const CKBehaviorContext& behcontext)
{
	CKBehavior* beh = behcontext.Behavior;
	CKContext* ctx = behcontext.Context;
	CKAttributeManager* attman = ctx->GetAttributeManager();

	beh->ActivateInput(0,FALSE);
	beh->ActivateOutput(0);

	CKGroup* group = (CKGroup*)beh->GetInputParameterObject(0);
	if(!group) VXTHROW "No group given";
	CKParameterOut* param = group->GetAttributeParameter(attman->GetAttributeTypeByName(Network3dName));
	if(!param) VXTHROW "Given Group isn't a Network";
	N3DGraph* graph;
	param->GetValue(&graph);
	if(!graph) VXTHROW "There is no Graph attached";

	graph->UpdateDistance();
	
	return CKBR_OK;
}