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//
//		            ActivateLink
//
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#include "CKAll.h"


#include "N3dGraph.h"

CKObjectDeclaration	*FillBehaviorActivateLinkDecl();
CKERROR CreateActivateLinkProto(CKBehaviorPrototype **);
int ActivateLink(const CKBehaviorContext& behcontext);

CKObjectDeclaration	*FillBehaviorActivateLinkDecl()
{                          
	CKObjectDeclaration *od = CreateCKObjectDeclaration("Activate Link");	
	od->SetDescription("Activates or deactivates a link between two nodes of a 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>nodal path to which the link belongs.<BR>
	<SPAN CLASS=pin>Start Node: </SPAN>link's starting point (node).<BR>
	<SPAN CLASS=pin>End Node: </SPAN>link's ending point (node).<BR>
	<SPAN CLASS=pin>Activate: </SPAN>link will be activated if TRUE, otherwise link will be deactivated.<BR>
	<SPAN CLASS=pin>TwoWay: </SPAN>building block will be applied to both directions if TRUE and if link is two way.<BR>
	<BR>
	<a href="nodal.htm">More information on Nodal Paths.</a><BR>
	See also: other Nodal related building blocks in the Nodal Path folder of 3D Transformations.<BR>
	*/
	/* warning:
	- If the two nodes aren't directly linked together, the "Activate Link" building block won't activate all the links that lead from one to another.<BR>
	*/
	od->SetType( CKDLL_BEHAVIORPROTOTYPE);
	od->SetGuid(CKGUID(0x51df79d8,0x294163a3));
	od->SetAuthorGuid(VIRTOOLS_GUID);
	od->SetAuthorName("Virtools");
	od->SetVersion(0x00010000);
	od->SetCreationFunction(CreateActivateLinkProto);
	od->SetCompatibleClassId(CKCID_BEOBJECT);
	od->SetCategory("3D Transformations/Nodal Path");
	return od;
}


CKERROR CreateActivateLinkProto(CKBehaviorPrototype **pproto)
{
	CKBehaviorPrototype *proto = NULL;
	proto = CreateCKBehaviorPrototype("Activate Link");
	if(!proto) return CKERR_OUTOFMEMORY;
	
	proto->DeclareInput("In");
	proto->DeclareOutput("Out");

	proto->DeclareInParameter("Nodal Path",CKPGUID_GROUP);
	proto->DeclareInParameter("Start Node",CKPGUID_3DENTITY);
	proto->DeclareInParameter("End Node",CKPGUID_3DENTITY);
	proto->DeclareInParameter("Activate",CKPGUID_BOOL,"FALSE");
	proto->DeclareInParameter("Two Way",CKPGUID_BOOL,"FALSE");

	proto->SetFlags(CK_BEHAVIORPROTOTYPE_NORMAL);
	proto->SetFunction( ActivateLink );
	
	*pproto = proto;
	return CK_OK;
	
}


int ActivateLink(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);			
	CKParameterOut* param = group->GetAttributeParameter(attman->GetAttributeTypeByName(Network3dName));
	if(!param) VXTHROW "Given Group isn't a Network";
	N3DGraph* graph;
	param->GetValue(&graph);

	CK3dEntity* s = (CK3dEntity*)beh->GetInputParameterObject(1);
	CK3dEntity* e = (CK3dEntity*)beh->GetInputParameterObject(2);
	BOOL b = FALSE;
	beh->GetInputParameterValue(3,&b);

	// the core code
	graph->ActivateEdge(s,e,b);
	BOOL tw = FALSE;
	beh->GetInputParameterValue(4,&tw);
	if(tw) 	graph->ActivateEdge(e,s,b);

	return CKBR_OK;
}