/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/

#include "hsTypes.h"
#include "plVisRegion.h"

#include "hsStream.h"
#include "hsResMgr.h"

#include "plVisMgr.h"

#include "../pnMessage/plEnableMsg.h"
#include "../plIntersect/plRegionBase.h"

plVisRegion::plVisRegion()
:	fIndex(0),
	fRegion(nil),
	fMgr(nil)
{
	fMgr = plGlobalVisMgr::Instance();

	SetProperty(kReplaceNormal, true);
}

plVisRegion::~plVisRegion()
{
	if( fMgr )
		fMgr->UnRegister(this, GetProperty(kIsNot));
}

hsBool plVisRegion::Eval(const hsPoint3& pos) const
{
	if( GetProperty(kDisable) )
		return false;

	if( !fRegion )
		return true;

	return fRegion->IsInside(pos);
}

hsBool plVisRegion::MsgReceive(plMessage* msg)
{
	plEnableMsg* enaMsg = plEnableMsg::ConvertNoRef(msg);
	if( enaMsg )
	{
		SetProperty(kDisable, enaMsg->Cmd(plEnableMsg::kDisable));
		return true;
	}
	plGenRefMsg* refMsg = plGenRefMsg::ConvertNoRef(msg);
	if( refMsg )
	{
		switch( refMsg->fType )
		{
		case kRefRegion:
			if( refMsg->GetContext() & (plRefMsg::kOnCreate|plRefMsg::kOnRequest|plRefMsg::kOnReplace) )
			{
				fRegion = plRegionBase::ConvertNoRef(refMsg->GetRef());
			}
			else
			{
				fRegion = nil;
			}
			return true;
		case kRefVisMgr:
			if( refMsg->GetContext() & (plRefMsg::kOnCreate|plRefMsg::kOnRequest|plRefMsg::kOnReplace) )
			{
				if( fMgr )
					fMgr->UnRegister(this, GetProperty(kIsNot));
				fMgr = plVisMgr::ConvertNoRef(refMsg->GetRef());
				hsAssert(fMgr, "Just set my manager to nil.");
				fMgr->Register(this, GetProperty(kIsNot));
			}
			else
			{
				fMgr = nil;
			}
			return true;

		default:
			break;
		}
	}
	return plObjInterface::MsgReceive(msg);
}

void plVisRegion::Read(hsStream* s, hsResMgr* mgr)
{
	plObjInterface::Read(s, mgr);

	mgr->ReadKeyNotifyMe(s, TRACKED_NEW plGenRefMsg(GetKey(), plRefMsg::kOnCreate, 0, kRefRegion), plRefFlags::kActiveRef);
	mgr->ReadKeyNotifyMe(s, TRACKED_NEW plGenRefMsg(GetKey(), plRefMsg::kOnCreate, 0, kRefVisMgr), plRefFlags::kActiveRef);

	if( fMgr )
		fMgr->Register(this, GetProperty(kIsNot));
}

void plVisRegion::Write(hsStream* s, hsResMgr* mgr)
{
	plObjInterface::Write(s, mgr);

	mgr->WriteKey(s, fRegion);

	mgr->WriteKey(s, fMgr);
}