CWE-ou-minkata/Sources/Plasma/PubUtilLib/plScene/plVisRegion.cpp

/*==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);
}