/*==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/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

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 "HeadSpin.h"
#include "plVirtualCamNeu.h"
#include "plCameraModifier.h"
#include "plCameraBrain.h"
#include "plPipeline.h"
#include "pfCameraProxy.h"
#include "plgDispatch.h"
#include "pnKeyedObject/plKey.h"
#include "pnKeyedObject/plFixedKey.h"
#include "hsMatrix44.h"
#include "pnSceneObject/plSceneObject.h"
#include "hsResMgr.h"
#include "hsTimer.h"
#include "plAudio/plAudioSystem.h"
#include "plInputCore/plInputDevice.h"
#include "plInputCore/plInputManager.h"
#include "pnInputCore/plKeyDef.h"
#include "plScene/plSceneNode.h"
#include "plMessage/plAvatarMsg.h"
#include "pnMessage/plWarpMsg.h"
#include "pnMessage/plCameraMsg.h"
#include "pnMessage/plEnableMsg.h"
#include "pnMessage/plTimeMsg.h"
#include "pnMessage/plObjRefMsg.h"
#include "pnMessage/plCmdIfaceModMsg.h"
#include "pnMessage/plPlayerPageMsg.h"
#include "plMessage/plInputEventMsg.h"
#include "pnSceneObject/plCoordinateInterface.h"
#include "plDrawable/plDrawableGenerator.h"
#include "plScene/plSceneNode.h"
#include "plInputCore/plDebugInputInterface.h"
#include "plInputCore/plAvatarInputInterface.h"
#include "plMessage/plInputIfaceMgrMsg.h"
#include "plStatusLog/plStatusLog.h"
#include "plPipeline/plPlates.h"
#include "plGImage/plMipmap.h"
#include "plSurface/plLayer.h"
#include "plSurface/hsGMaterial.h"
#include "pnNetCommon/plNetApp.h"
#include "plNetClient/plNetClientMgr.h"
#include "plAvatar/plAvBrainHuman.h"
#include "plAvatar/plAvatarMgr.h"

#include "hsGeometry3.h"
#include "hsQuat.h"

float plVirtualCam1::fFOVw           =  45.0f;
float plVirtualCam1::fFOVh           =  33.75f;
float plVirtualCam1::fHither         =   0.3f;
float plVirtualCam1::fYon            = 500.0f;
hsBool   plVirtualCam1::printFOV        = false;
hsBool   plVirtualCam1::fUseAccelOverride   = 1;
hsBool   plVirtualCam1::freeze  = 0;
//float plVirtualCam1::fAccel            = 5.0f;
//float plVirtualCam1::fDecel            = 5.0f;
//float plVirtualCam1::fVel          = 10.0f;
float plVirtualCam1::fAccel          = 50.0f;
float plVirtualCam1::fDecel          = 50.0f;
float plVirtualCam1::fVel            = 100.0f;
float plVirtualCam1::fPanResponseTime    = 3.0f;
float plVirtualCam1::fFallTimerDelay = 0.25f;
hsBool   plVirtualCam1::alwaysCutForColin = false;
hsBool   plVirtualCam1::WalkPan3rdPerson = false;
hsBool     plVirtualCam1::StayInFirstPersonForever = false;
float    plVirtualCam1::fAspectRatio = fFOVw / fFOVh;

// #define STATUS_LOG

#ifdef STATUS_LOG
static plStatusLog *camLog = nil;
#endif

// static functions
void plVirtualCam1::AddMsgToLog(const char* msg)
{
#ifdef STATUS_LOG
    if (camLog)
        camLog->AddLine(msg);
#endif
}

hsBool plVirtualCam1::IsCurrentCamera(const plCameraModifier1* mod)
{
    if (plVirtualCam1::Instance())
    {
        if (plVirtualCam1::Instance()->InTransition())
            return(plVirtualCam1::Instance()->GetTransitionCamera() == mod);
        
        return (plVirtualCam1::Instance()->GetCurrentCamera() == mod);
    }
    return false;
}

plVirtualCam1* plVirtualCam1::fInstance = nil;

void plVirtualCam1::Deactivate() 
{ 
}


plVirtualCam1::plVirtualCam1() 
{
    fFlags.Clear();
    fPythonOverride = nil;
    fFirstPersonOverride = nil;
    fThirdPersonCam = nil;
    fTransPos = POS_TRANS_OFF;
    fPrevCam = nil;
    fTransitionCamera = new plCameraModifier1;
    fTransitionCamera->RegisterAs(kTransitionCamera_KEY);
    // set initial view position
    fOutputPos.Set(100,100,100);
    fOutputPOA.Set(0,0,0);
    fEffectPlate = nil;
    fFreezeCounter = 0;
    fFadeCounter = 0;
    fX = fY = 0.5f;
    fXPanLimit = 0;
    fZPanLimit = 0;
    fRetainedFY = 0.5f;
    // create built-in drive mode camera
    fCameraDriveInterface = plDebugInputInterface::GetInstance();
    hsRefCnt_SafeRef( fCameraDriveInterface );

    fDriveCamera = new plCameraModifier1;
    plCameraBrain1* pDriveBrain = new plCameraBrain1_Drive(fDriveCamera);

    PushCamera(fDriveCamera);
    fForceCutOnce=false;

    // static accessor hack
    plVirtualCam1::fInstance = this;
    
    #ifdef STATUS_LOG
    if (!camLog)
        camLog = plStatusLogMgr::GetInstance().CreateStatusLog(40, "Camera.log", plStatusLog::kFilledBackground | plStatusLog::kDeleteForMe | plStatusLog::kAlignToTop);
//      camLog = plStatusLogMgr::GetInstance().CreateStatusLog(40, "Camera", plStatusLog::kFilledBackground | plStatusLog::kDeleteForMe | plStatusLog::kDontWriteFile | plStatusLog::kAlignToTop);
    #endif

    ICreatePlate();

    foutLog = nil;
#ifndef PLASMA_EXTERNAL_RELEASE
    // only open log file if logging is on
    if ( !plStatusLog::fLoggingOff )
    {
        wchar_t fileAndPath[MAX_PATH];
        PathGetLogDirectory(fileAndPath, arrsize(fileAndPath));
        PathAddFilename(fileAndPath, fileAndPath, L"camLog.txt", arrsize(fileAndPath));
        foutLog = hsWFopen( fileAndPath, L"wt" );
    }
#endif

    SetFlags(kFirstPersonEnabled);

}

plVirtualCam1::~plVirtualCam1()
{
    if(fTransitionCamera->GetBrain())
    {   
        delete(fTransitionCamera->GetBrain());
    }
    fTransitionCamera->UnRegisterAs(kTransitionCamera_KEY);
    delete(fDriveCamera->GetBrain());
    delete(fDriveCamera);
    hsRefCnt_SafeUnRef( fCameraDriveInterface );

    if(fThirdPersonCam)
    {   
        delete(fThirdPersonCam->GetBrain());
        fThirdPersonCam->UnRegisterAs(kBuiltIn3rdPersonCamera_KEY);
    }
    plUoid U(kDefaultCameraMod1_KEY);
    plKey pKey = hsgResMgr::ResMgr()->FindKey(U);
    if (pKey)
    {   
        delete((plCameraModifier1*)pKey->GetObjectPtr())->GetBrain();
        pKey->GetObjectPtr()->UnRegisterAs(kDefaultCameraMod1_KEY); 
    }
    if (fEffectPlate)
        plPlateManager::Instance().DestroyPlate(fEffectPlate);
}

// for saving camera stack
plCameraModifier1* plVirtualCam1::GetCameraNumber(int camNumber)
{ 
    return (fCameraStack[camNumber]); 
}
// for rebuilding camera stack
void plVirtualCam1::RebuildStack(const plKey& key)
{
    if (fCameraStack.Count() == 1)
    {
        plUoid U(kDefaultCameraMod1_KEY);
        plKey pKey = hsgResMgr::ResMgr()->FindKey(U);
        if (pKey)
        {
            if (fCameraStack[0]->GetKey() == pKey)
                fCameraStack.SetCountAndZero(0);
        }
    }
    plSceneObject* pObj = plSceneObject::ConvertNoRef(key->GetObjectPtr());
    if (pObj)
    {
        
        plCameraModifier1* pMod = (plCameraModifier1*)pObj->GetModifierByType(plCameraModifier1::Index());
        if (pMod)
            AddCameraToStack(pMod);
        else
            PushThirdPerson();
    }
    else
    {
        plCameraModifier1* pMod = plCameraModifier1::ConvertNoRef(key->GetObjectPtr());
        if (pMod)
            AddCameraToStack(pMod);
        else
            PushThirdPerson();
    }
    if (!HasFlags(kFirstPersonAtLinkOut))
    {
        plEnableMsg* pMsg = new plEnableMsg;
        pMsg->SetSender(GetKey());
        pMsg->SetCmd(plEnableMsg::kEnable);
        pMsg->AddType(plEnableMsg::kDrawable);
        pMsg->SetBCastFlag(plMessage::kPropagateToModifiers);
        pMsg->AddReceiver(plNetClientMgr::GetInstance()->GetLocalPlayerKey());
        plgDispatch::MsgSend(pMsg);
    }
    
    fForceCutOnce=true;
    
}

// hack for console command to force offset 
void plVirtualCam1::SetOffset(float x, float y, float z)
{
    plCameraModifier1* pCam = plVirtualCam1::Instance()->GetCurrentCamera();
    if (!pCam)
        return;
    hsVector3 pt(x,y,z);
    if (plCameraBrain1_Avatar::ConvertNoRef(pCam->GetBrain()))
        ((plCameraBrain1_Avatar*)(pCam->GetBrain()))->SetOffset(pt);
}

// static function
void plVirtualCam1::SetFOV(float x, float y)
{

    float fovW = y * fAspectRatio;

    fFOVw = fovW;
    fFOVh = y;

    if (! plVirtualCam1::Instance()->fPipe) 
        return;

    plVirtualCam1::Instance()->SetFlags(plVirtualCam1::kSetFOV);

    #ifdef STATUS_LOG
if (printFOV)
        camLog->AddLineF("FOV changed by console command to %f", fFOVw);
#endif

}
// static function
void plVirtualCam1::SetFOV(float x, float y, plCameraModifier1* pCam)
{
    if (plVirtualCam1::Instance()->GetCurrentCamera() != pCam)
        return;

    float diff = hsABS(fFOVw - x);
    if (diff > 10.0f)
    {
#ifdef STATUS_LOG
        camLog->AddLineF("Radical FOV change of %f", diff);
#endif

    }

    float fovW = y * fAspectRatio;

    fFOVw = fovW;
    fFOVh = y;

    if (! plVirtualCam1::Instance()->fPipe) 
        return;
    
    plVirtualCam1::Instance()->SetFlags(plVirtualCam1::kSetFOV);
    
#ifdef STATUS_LOG
    if (printFOV)
        camLog->AddLineF("FOV changed to %f", fFOVw);
#endif
}

// static function

void plVirtualCam1::SetDepth(float h, float y)
{
    return;
    fHither = h;
    fYon = y;
    if (! plVirtualCam1::Instance()->fPipe)
        return;
    plVirtualCam1::Instance()->fPipe->SetDepth(fHither, fYon);
    plVirtualCam1::Instance()->fPipe->RefreshMatrices();
    #ifdef STATUS_LOG
    camLog->AddLineF("Hither, Yon changed to %f %f", fHither, fYon);
    #endif
}

// force drive mode from console
void plVirtualCam1::Drive()
{
    if (GetCurrentCamera() == fDriveCamera)
    {   
        fCameraDriveInterface->SetEnabled( false );
        PopCamera(fDriveCamera);

        #ifdef STATUS_LOG
        camLog->AddLineF("Camera Drive Mode Disabled");
        #endif
    }
    else
    {
        // set it to the current camera position -
        fDriveCamera->GetBrain()->SetGoal(GetCurrentCamera()->GetTargetPos());
        fDriveCamera->GetBrain()->SetPOAGoal(GetCurrentCamera()->GetTargetPOA());
        fDriveCamera->SetTargetPos(GetCurrentCamera()->GetTargetPos());
        fDriveCamera->SetTargetPOA(GetCurrentCamera()->GetTargetPOA());

        PushCamera(fDriveCamera);
    
        // push the interface on
        fCameraDriveInterface->SetEnabled( true );

        #ifdef STATUS_LOG
        camLog->AddLineF("Camera Drive Mode Enabled");
        #endif
    }
}


void plVirtualCam1::SetPipeline(plPipeline* p)
{ 
    fPipe = p; 
    SetFOV(plVirtualCam1::fFOVw, plVirtualCam1::fFOVh);
    SetRender(false);
}

void  plVirtualCam1::Reset(hsBool bRender)
{
    if (fPythonOverride)
        fPythonOverride = nil;
    if (fFirstPersonOverride)
        fFirstPersonOverride = nil;
    fCamerasLoaded.SetCountAndZero(0);
    fCameraStack.SetCountAndZero(0);
    fCameraStack.Append(fDriveCamera);
    plUoid U(kDefaultCameraMod1_KEY);
    plKey pKey = hsgResMgr::ResMgr()->FindKey(U);
    if (pKey)
        PushCamera((plCameraModifier1*)pKey->GetObjectPtr());
        //fCameraStack.Append((plCameraModifier1*)pKey->GetObjectPtr());
    
    if (fThirdPersonCam)
        PushCamera(fThirdPersonCam);
    SetRender(bRender);
    
    fX = fY = 0.5f;
    fRetainedFY = 0.5f;
    ClearFlags(kAvatarWalking);
    ClearFlags(kUnPanCamera);
    ClearFlags(kInterpPanLimits);
    ClearFlags(kResponderForced3rd);
    ClearFlags(kScriptsDisabled1st);
    ClearFlags(kFalling);
    ClearFlags(kFirstPersonEnabled);
    
    #ifdef STATUS_LOG
    camLog->AddLineF("Virtual Camera Reset");
    #endif

}

void  plVirtualCam1::ClearStack()
{
    fCameraStack.SetCountAndZero(0);
    plUoid U(kDefaultCameraMod1_KEY);
    plKey pKey = hsgResMgr::ResMgr()->FindKey(U);
    if (pKey)
        PushCamera((plCameraModifier1*)pKey->GetObjectPtr());

    #ifdef STATUS_LOG
    camLog->AddLineF("Camera Stack Cleared");
    #endif

}

plCameraModifier1* plVirtualCam1::GetCurrentCamera()
{
    if (GetCurrentStackCamera() == fDriveCamera)
        return fDriveCamera;
    if (fPythonOverride)
        return (fPythonOverride);
    if (fFirstPersonOverride)
        return(fFirstPersonOverride);
    if (fTransPos == POS_TRANS_FOLLOW)
        return(fTransitionCamera);

    if (fCameraStack.Count())
        return fCameraStack[fCameraStack.Count() - 1];
    else return nil;
}

hsBool plVirtualCam1::Is1stPersonCamera()
{
    if (GetCurrentStackCamera() == fDriveCamera)
        return false;
    if (fPythonOverride)
        return false;
    if (fFirstPersonOverride)
        return true;

    else return false;
}

plCameraModifier1* plVirtualCam1::GetCurrentStackCamera()
{
    if (fCameraStack.Count())
        return fCameraStack[fCameraStack.Count() - 1];
    else return nil;
}

void plVirtualCam1::ICreatePlate()
{
    int     x, y;


    fEffectPlate = nil;

    // +0.01 to deal with the half-pixel antialiasing stuff
    plPlateManager::Instance().CreatePlate( &fEffectPlate, 0, 0, 2.01, 2.01 );

    // hack for now--create a black layer that we will animate the opacity on
    plMipmap *ourMip = fEffectPlate->CreateMaterial( 16, 16, true );
    for( y = 0; y < ourMip->GetHeight(); y++ )
    {
        uint32_t  *pixels = ourMip->GetAddr32( 0, y );
        for( x = 0; x < ourMip->GetWidth(); x++ )
            pixels[ x ] = 0xff000000;
    }
    if( fEffectPlate == nil )
        ICreatePlate();
    fEffectPlate->SetVisible( false );
}


void plVirtualCam1::SetCutNextTrans()
{
    SetFlags(kCutNextTrans);
    SetRender(true);
#ifdef STATUS_LOG
        camLog->AddLineF("Set Camera to cut on next transition");
#endif
}

void plVirtualCam1::SetRender(hsBool render)
{
    fFlags.SetBit(kRender,render);
    if (render)
    {
        #ifdef STATUS_LOG
        camLog->AddLineF("Virtual Camera Render Updates Enabled");
        if (fEffectPlate)
            fEffectPlate->SetVisible(false);
        #endif
    }
    else
    {   
        #ifdef STATUS_LOG
        camLog->AddLineF("Virtual Camera Render Updates Disabled");
        if (fEffectPlate)
            fEffectPlate->SetVisible(true);
        #endif
    }


}

// hack, hack, hack
hsBool plVirtualCam1::RestoreFromName(const plString& name)
{
    for(int i = 0; i < fCamerasLoaded.Count(); i++)
    {
        if (name.Compare(fCamerasLoaded[i]->GetKeyName()) == 0)
        {
            RebuildStack(fCamerasLoaded[i]->GetKey());
            return true;
        }
    }
    return false;
}
void plVirtualCam1::Next()
{
}

void plVirtualCam1::Prev()
{
}

void plVirtualCam1::PushThirdPerson()
{
    if (fThirdPersonCam)
    {
#ifdef STATUS_LOG
        camLog->AddLineF("Restore failed, forcing built-in 3rd person camera");
#endif
        ClearStack();
        SetCutNextTrans();
        PushCamera(fThirdPersonCam);
        return;
    }
#ifdef STATUS_LOG
        camLog->AddLineF("Restore failed, 3rd person camera not available for switch: attempting to force 1st person");
#endif
    FirstPersonOverride();

}


//
// Make adjustments to camera position based on 
// user input - NOTE this is for mouse-cursor based adjustment
//
void plVirtualCam1::StartInterpPanLimits()
{
    plCameraBrain1* pBrain = 0;
    if (fPythonOverride && fPythonOverride->GetBrain())
        pBrain = fPythonOverride->GetBrain();
    if (pBrain == 0 && GetCurrentStackCamera() && GetCurrentStackCamera()->GetBrain())
        pBrain = GetCurrentStackCamera()->GetBrain();

    if (pBrain)
    {
        if (pBrain->GetXPanLimit() == fXPanLimit &&
            pBrain->GetZPanLimit() == fZPanLimit )
        {   
            ClearFlags(kInterpPanLimits);
            return;
        }
        fXPanLimitGoal = pBrain->GetXPanLimit();
        fZPanLimitGoal = pBrain->GetZPanLimit();
        fXPanInterpRate = fXPanLimitGoal - fXPanLimit;
        fZPanInterpRate = fZPanLimitGoal - fZPanLimit;
        SetFlags(kInterpPanLimits);
        fInterpPanLimitTime = hsTimer::GetSysSeconds() + 1.0f;
    }
}

void plVirtualCam1::InterpPanLimits()
{
    if (fXPanLimitGoal == fXPanLimit && fZPanLimitGoal == fZPanLimit)
    {
        ClearFlags(kInterpPanLimits);
        return;
    }
    fXPanLimit += fXPanInterpRate * hsTimer::GetDelSysSeconds();
    fZPanLimit += fZPanInterpRate * hsTimer::GetDelSysSeconds();
    if ((fZPanInterpRate > 0 && fZPanLimit >= fZPanLimitGoal) ||
        (fZPanInterpRate < 0 && fZPanLimit <= fZPanLimitGoal) )
    {
        fZPanLimit = fZPanLimitGoal;
        fZPanInterpRate = 0;
    }
    if ((fXPanInterpRate > 0 && fXPanLimit >= fXPanLimitGoal) ||
        (fXPanInterpRate < 0 && fXPanLimit <= fXPanLimitGoal) )
    {
        fXPanLimit = fXPanLimitGoal;
        fXPanInterpRate = 0;
    }
    if (fXPanInterpRate == 0)
        fXPanLimit = fXPanLimitGoal;
    if (fZPanInterpRate == 0)
        fZPanLimit = fZPanLimitGoal;
}

void plVirtualCam1::StartUnPan()
{
    if (!HasFlags(kUnPanCamera))
    {
        SetFlags(kUnPanCamera);
        if (HasFlags(kFalling))
        {
            fUnPanEndTime = hsTimer::GetSysSeconds() + 0.5;
            fXUnPanRate = (0.5f - fX) / 0.5f; 
            fZUnPanRate = (0.5f - fY) / 0.5f; 
        
        }
        else
        {
            fUnPanEndTime = hsTimer::GetSysSeconds() + fPanResponseTime;
            fXUnPanRate = (0.5f - fX) / fPanResponseTime; 
            fZUnPanRate = (0.5f - fY) / fPanResponseTime; 
        }   
    }
}

void plVirtualCam1::UnPanIfNeeded()
{
    if (HasFlags(kUnPanCamera))
    {
        if (fX == 0.5f && fY == 0.5f)
        {
            ClearFlags(kUnPanCamera);
            return;
        }
        fX += fXUnPanRate * hsTimer::GetDelSysSeconds();
        fY += fZUnPanRate * hsTimer::GetDelSysSeconds();
        if ((fXUnPanRate > 0 && fX >= 0.5f) || (fXUnPanRate < 0 && fX <= 0.5f))
        {
            fX = 0.5f;
            fXUnPanRate = 0;
        }
        if ((fZUnPanRate > 0 && fY >= 0.5f) || (fZUnPanRate < 0 && fY <= 0.5f))
        {
            fY = 0.5f;
            fZUnPanRate = 0;
        }
    }
}


void plVirtualCam1::AdjustForInput()
{
    if (!fFirstPersonOverride)
    {   
        if (HasFlags(kInterpPanLimits))
            InterpPanLimits();

        UnPanIfNeeded();

        float panSpeed = 0.5f;
        double secs = hsTimer::GetDelSysSeconds();
        
        if (HasMovementFlag(B_CAMERA_PAN_UP))
            fY -= (float)(panSpeed * secs);
        if (HasMovementFlag(B_CAMERA_PAN_DOWN))
            fY += (float)(panSpeed * secs);  
        if (HasMovementFlag(B_CAMERA_PAN_LEFT))
            fX -= (float)(panSpeed * secs);
        if (HasMovementFlag(B_CAMERA_PAN_RIGHT))
            fX += (float)(panSpeed * secs);
    }
    if ((fY == 0.5f && fX == 0.5f) &&
        fFirstPersonOverride == nil) 
        return;
    
    if (fY > 1.0f)
        fY = 1.0f;
    if (fY < 0.0f)
        fY = 0.0f;
    if (fX > 1.0f)
        fX = 1.0f;
    if (fX < 0.0f)
        fX = 0.0f;

    if ((fXPanLimit == 0.0f && fZPanLimit == 0.0f) &&
        fFirstPersonOverride == nil) 
        return;

    hsMatrix44 m;
    
    hsVector3 v1(fOutputPOA - fOutputPos);
    hsVector3 v2(0,0,1);
    v1.Normalize();
    hsVector3 up = (v2 % v1) % v1;

    m.Make(&fOutputPos, &fOutputPOA, &up);


    // scale maximum angle by % mouse input

    float scaledX;
    if (fFirstPersonOverride)
        scaledX = 3.14159;
    else
        scaledX = (float)(3.14159 - (fXPanLimit * ( (fX - 0.5f) / 0.5f)));

    float scaledZ; 
    if (fFirstPersonOverride)
        scaledZ = (float)(3.14159 - (0.872f * ( (fY - 0.5f) / 0.5f)));
    else
        scaledZ = (float)(3.14159 - (fZPanLimit * ( (fY - 0.5f) / 0.5f)));

    hsMatrix44 mX;
    hsMatrix44 mZ;

    hsVector3 right = m.GetAxis(hsMatrix44::kRight);
    up = m.GetAxis(hsMatrix44::kUp);
    up *= -1;
    hsQuat qX(scaledX, &up);
    hsQuat qZ(scaledZ, &right);
    
    qX.MakeMatrix(&mX);
    qZ.MakeMatrix(&mZ);

    m = mX * m;
    m = mZ * m;

    hsVector3 view = m.GetAxis(hsMatrix44::kView);
    fOutputPOA = fOutputPos + (view * 15);

}


void plVirtualCam1::IUpdate()
{
    if (!HasFlags(kRender))
        return;

    
    if (fDriveCamera)
        fDriveCamera->Update();
    if (fPythonOverride)
        fPythonOverride->Update();
    if (fFirstPersonOverride)
        fFirstPersonOverride->Update();
    if (fTransitionCamera)
        fTransitionCamera->Update();

    RunTransition();
    
    for (int i=0; i < fCameraStack.Count(); i++)
    {   
        hsBool update = true;
        for (int j=i+1; j<fCameraStack.Count(); j++)
        {
            if (fCameraStack[i] == fCameraStack[j])
            {
                update = false;
                break;
            }
        }
        if ((fCameraStack[i] == GetCurrentStackCamera()) && fTransPos != POS_TRANS_OFF)
            update = false;
        if(update)
        {
            // eek...
            if(alwaysCutForColin && fCameraStack[i]->GetBrain())
            {
                fCameraStack[i]->GetBrain()->SetFlags(plCameraBrain1::kCutPos);
                fCameraStack[i]->GetBrain()->SetFlags(plCameraBrain1::kCutPOA);
            }
            if(fForceCutOnce)
            {
                fCameraStack[i]->GetBrain()->SetFlags(plCameraBrain1::kCutPosOnce);
                fCameraStack[i]->GetBrain()->SetFlags(plCameraBrain1::kCutPOAOnce);
            }
            fCameraStack[i]->Update();
        }
    }
    if(fForceCutOnce)fForceCutOnce=false;
    
    Output();
}


void plVirtualCam1::Output()
{
    if (fFreezeCounter)
    {
        fFreezeCounter-=1;
        GetCurrentCamera()->GetBrain()->SetFlags(plCameraBrain1::kCutPOAOnce);
        GetCurrentCamera()->GetBrain()->SetFlags(plCameraBrain1::kCutPosOnce);
        return;
    }
    if (fFadeCounter)
    {
        fFadeCounter-=1;
        if (fFadeCounter == 0 && fFirstPersonOverride == nil)
        {
            plEnableMsg* pMsg = new plEnableMsg;
            pMsg->SetSender(GetKey());
            pMsg->SetCmd(plEnableMsg::kEnable);
            pMsg->AddType(plEnableMsg::kDrawable);
            pMsg->SetBCastFlag(plMessage::kPropagateToModifiers);
            pMsg->AddReceiver(plNetClientMgr::GetInstance()->GetLocalPlayerKey());
            plgDispatch::MsgSend(pMsg);
        }
    }
    hsMatrix44 targetMatrix;
    hsMatrix44 inverse;
    if (GetCurrentCamera())
    {   
        fOutputPos = GetCurrentCamera()->GetTargetPos();
        fOutputPOA = GetCurrentCamera()->GetTargetPOA();
        AdjustForInput();
    }
    else
    {
        return;
    }
    // construct output matrix
    hsVector3 abUp(0,0,1);
    hsVector3 view(fOutputPos - fOutputPOA);
    view.Normalize();
    // Now passing in Up for up parameter to MakeCamera. Negates sense of up. mf_flip_up - mf
    hsVector3 up = (view % abUp) % view;
    if (GetCurrentCamera()->IsAnimated())
        up = -GetCurrentCamera()->GetTarget()->GetCoordinateInterface()->GetLocalToWorld().GetAxis(hsMatrix44::kView);
    
    fOutputUp = up;
    targetMatrix.MakeCamera(&fOutputPos,&fOutputPOA, &up);
    targetMatrix.GetInverse(&inverse);
    fPipe->SetWorldToCamera( targetMatrix, inverse );
    if (HasFlags(kSetFOV)) // are we changing the field of view?
    {
        ClearFlags(kSetFOV);
        fPipe->SetFOV(fFOVw,fFOVh);
        fPipe->RefreshMatrices();
        if (foutLog)
        {
            fprintf(foutLog, "****************************************************************\n");
            fprintf(foutLog, "FOV changed to %f %f\n",fFOVh, fFOVw);
            fprintf(foutLog, "****************************************************************\n");
        }   

    }
/*  if (foutLog)
    {
        fprintf(foutLog, "output pos %f %f %f\n", fOutputPos.fX,fOutputPos.fY,fOutputPos.fZ);
        fprintf(foutLog, "output poa %f %f %f\n", fOutputPOA.fX,fOutputPOA.fY,fOutputPOA.fZ);
        fprintf(foutLog, "\n");
    }   */
}

void plVirtualCam1::Init()
{
    plgDispatch::Dispatch()->RegisterForExactType(plEvalMsg::Index(), GetKey());
    plgDispatch::Dispatch()->RegisterForExactType(plCameraMsg::Index(), GetKey());
    plgDispatch::Dispatch()->RegisterForExactType(plMouseEventMsg::Index(), GetKey());
    plgDispatch::Dispatch()->RegisterForExactType(plIfaceFadeAvatarMsg::Index(), GetKey());
    plgDispatch::Dispatch()->RegisterForExactType(plPlayerPageMsg::Index(), GetKey());

    // register for control messages
    plCmdIfaceModMsg* pModMsg = new plCmdIfaceModMsg;
    pModMsg->SetBCastFlag(plMessage::kBCastByExactType);
    pModMsg->SetSender(GetKey());
    pModMsg->SetCmd(plCmdIfaceModMsg::kAdd);
    plgDispatch::MsgSend(pModMsg);
}

//
// toggle between player-enforced 1st person mode and back
//
void plVirtualCam1::FirstPersonOverride()
{
    if (!HasFlags(kRender))
        return;
    
    if (fFirstPersonOverride)
    {
        fFirstPersonOverride->Pop();
        GetCurrentStackCamera()->Push(!HasFlags(kAvatarWalking));
        GetCurrentStackCamera()->GetBrain()->SetFlags(plCameraBrain1::kCutPosOnce);
        GetCurrentStackCamera()->GetBrain()->SetFlags(plCameraBrain1::kCutPOAOnce);
        fFirstPersonOverride = nil;
#ifdef STATUS_LOG
        camLog->AddLineF("Built-In First Person Camera Disabled");
#endif
        SetFOV(GetCurrentStackCamera()->GetFOVw(), GetCurrentStackCamera()->GetFOVh(), GetCurrentStackCamera()); 
        GetCurrentStackCamera()->Push(!HasFlags(kAvatarWalking));
        plAvatarInputInterface::GetInstance()->CameraInThirdPerson(true);
        FreezeOutput(2);    
        UnFadeAvatarIn(1);
        fRetainedFY = fY;
        fX = fY = 0.5f;
    }
    else
    if (HasFlags(kFirstPersonEnabled))
    {
//      plCameraBrain1* pBrain = nil;
//      if (GetCurrentStackCamera() && GetCurrentStackCamera()->GetBrain())
//      {
//          pBrain = plCameraBrain1_FirstPerson::ConvertNoRef(GetCurrentStackCamera()->GetBrain());
//          if (pBrain) // already in 1st person mode, don't use override
//              return;
//      }
        plUoid U(kDefaultCameraMod1_KEY);
        plKey pKey = hsgResMgr::ResMgr()->FindKey(U);
        if (pKey)
        {
            fFirstPersonOverride = (plCameraModifier1*)pKey->GetObjectPtr();
            GetCurrentStackCamera()->Pop();
            fFirstPersonOverride->Push(!HasFlags(kAvatarWalking));
            SetFOV(fFirstPersonOverride->GetFOVw(), fFirstPersonOverride->GetFOVh(), fFirstPersonOverride); 
            plAvatarInputInterface::GetInstance()->CameraInThirdPerson(false);
            // no need to keep transitioning if we are currently...
            if (fTransPos == POS_TRANS_FOLLOW)
                FinishTransition();
            fY = fRetainedFY;
        

#ifdef STATUS_LOG
            camLog->AddLineF("Built-In First Person Camera Enabled");
#endif
        }
    }
}

hsBool plVirtualCam1::MsgReceive(plMessage* msg)
{
    plPlayerPageMsg* pPMsg = plPlayerPageMsg::ConvertNoRef(msg);
    if (pPMsg)
    {
        if (!pPMsg->fUnload && pPMsg->fPlayer == plNetClientMgr::GetInstance()->GetLocalPlayerKey())
        {
            /*if (HasFlags(kRegisteredForBehaviors))
                return true;*/ // not reliable anymore since we have a dummy avatar in the startup age
            plSceneObject* avSO = plSceneObject::ConvertNoRef(plNetClientMgr::GetInstance()->GetLocalPlayer());
            if (avSO)
            {

                plArmatureMod* avMod = plAvatarMgr::GetInstance()->GetLocalAvatar();
                if (avMod)
                {   
                    avMod->RegisterForBehaviorNotify(GetKey());
                    // SetFlags(kRegisteredForBehaviors); // not reliable anymore since we have a dummy avatar in the startup age       
                }
            }
        }
        return true;
    }
    plAvatarBehaviorNotifyMsg *behNotifymsg = plAvatarBehaviorNotifyMsg::ConvertNoRef(msg);
    if (behNotifymsg)
    {
        if (behNotifymsg->fType == plHBehavior::kBehaviorTypeLinkIn && behNotifymsg->state == true)
        {
            if (!HasFlags(kScriptsForced3rd) && !HasFlags(kScriptsDisabled1st))
                SetFlags(kFirstPersonEnabled);
            
            if (HasFlags(kFirstPersonUserSelected))
            {
                ClearFlags(kFirstPersonAtLinkOut);
                ClearFlags(kScriptsForced3rd);
                if (!HasFlags(kScriptsForced3rd))
                {   
                    FirstPersonOverride();
                    //SetFlags(kJustLinkedIn);
                }
                else
                    plAvatarInputInterface::GetInstance()->CameraInThirdPerson(true);
            }
            else
            if (fFirstPersonOverride == nil)
            {
                plAvatarInputInterface::GetInstance()->CameraInThirdPerson(true);
            }
        }
        else
        if (behNotifymsg->fType == plHBehavior::kBehaviorTypeLinkOut && behNotifymsg->state == true)
        {
            ClearFlags(kFirstPersonEnabled);
            if (fFirstPersonOverride || HasFlags(kResponderForced3rd))
                SetFlags(kFirstPersonAtLinkOut);
        }
        return true;
    }
    plControlEventMsg* pCtrlMsg = plControlEventMsg::ConvertNoRef(msg);
    if (pCtrlMsg)
    {
        SetMovementFlag(pCtrlMsg->GetControlCode(), pCtrlMsg->ControlActivated());
        
        if (pCtrlMsg->GetControlCode() == S_SET_FREELOOK && pCtrlMsg->ControlActivated())
            ClearFlags(kUnPanCamera);

        if (pCtrlMsg->GetControlCode() == B_CONTROL_MOVE_FORWARD ||
            pCtrlMsg->GetControlCode() == B_CONTROL_MOVE_BACKWARD ||
            pCtrlMsg->GetControlCode() == B_CONTROL_ROTATE_RIGHT ||
            pCtrlMsg->GetControlCode() == B_CONTROL_ROTATE_LEFT )
        {
            if (!HasMovementFlag(S_SET_FREELOOK))
                StartUnPan();
        }

        if (pCtrlMsg->GetControlCode() == B_CONTROL_MOVE_FORWARD || pCtrlMsg->GetControlCode() == B_CONTROL_MOVE_BACKWARD)
        {
            fFlags.SetBit(kAvatarWalking, pCtrlMsg->ControlActivated());    
        }
        else
        if (pCtrlMsg->GetControlCode() == S_SET_FIRST_PERSON_MODE && pCtrlMsg->ControlActivated())
        {
            if (HasFlags(kFirstPersonEnabled))
            {
                if (HasFlags(kFirstPersonUserSelected))
                    ClearFlags(kFirstPersonUserSelected);
                else
                    SetFlags(kFirstPersonUserSelected);
            }
            FirstPersonOverride();  
            return true;
        }
        else
        if (pCtrlMsg->GetControlCode() == B_CAMERA_RECENTER && pCtrlMsg->ControlActivated())
        {
            fX = fY = fRetainedFY = 0.5f;
        }
        if (pCtrlMsg->GetControlCode() == B_TOGGLE_DRIVE_MODE && pCtrlMsg->ControlActivated())
            Drive();
        else
        {   
            if (fPythonOverride)
                fPythonOverride->MsgReceive(msg);
            else
            if (fFirstPersonOverride)
                fFirstPersonOverride->MsgReceive(msg);
            GetCurrentStackCamera()->MsgReceive(msg);   
        }
        return true;
    }
    plMouseEventMsg* pMouseMsg = plMouseEventMsg::ConvertNoRef(msg);
    if( pMouseMsg )
    {
        if (!HasFlags(kFalling))
        {
            float dX = pMouseMsg->GetDX();
            float dY = pMouseMsg->GetDY();
            if (plMouseDevice::GetInverted())
            {
                dX *= -1.f;
                dY *= -1.f;
            }
            if (HasMovementFlag(S_SET_FREELOOK))
            {
                if (pMouseMsg->GetDX() < 0.4 && pMouseMsg->GetDX() > -0.4)
                {   
                    fX -= dX;
                }
                if (pMouseMsg->GetDY() < 0.4 && pMouseMsg->GetDY() > -0.4)
                {   
                    fY -= dY;
                }
            }
            if ((HasMovementFlag(B_CONTROL_CAMERA_WALK_PAN)) &&
                (fFirstPersonOverride || WalkPan3rdPerson == true)) 
            {
                if (pMouseMsg->GetDY() < 0.4 && pMouseMsg->GetDY() > -0.4)
                {   
                    fY -= dY;
                }
            }
        }
        fDriveCamera->MsgReceive(msg);  
        return true;
    }
    plWarpMsg* pWarpMsg = plWarpMsg::ConvertNoRef(msg);
    if (pWarpMsg)
    {
        SetCutNextTrans();
        return true;
    }

    plCameraMsg* pCam = plCameraMsg::ConvertNoRef(msg);
    if (pCam)
    {   
        if (pCam->Cmd(plCameraMsg::kResetPanning))
        {
            fX = fY = fRetainedFY = 0.5f;
            return true;
        }
        else
        if (pCam->Cmd(plCameraMsg::kUpdateCameras))
        {
            IUpdate();
            return true;
        }
        else
        if (pCam->Cmd(plCameraMsg::kResetOnEnter))
        {
            // don't send this message to the virtual camera!
            Reset(false);
            // this only happens when the player links into the world
            return true;
        }
        else
        if (pCam->Cmd(plCameraMsg::kResetOnExit))
        {
            /*
            Kind of an ugly hack, but it works.  The avatar is being loaded/unloaded when
            the player enters/leaves the age, and the following Reset starts a camera transition
            which may reference the avatar's sceneobject and crash the client when the next
            update happens.  With the kCutNextTrans flag set it doesn't bother with the
            transition so there isn't any reading of invalid memory.
            */
            SetFlags(kCutNextTrans);

            // don't send this message to the virtual camera!
            Reset(false);
            // this only happens when the player links out of the world
            return true;
        }
        else
        if (pCam->Cmd(plCameraMsg::kCreateNewDefaultCam))
        {
            if (pCam->GetSubject() == plNetClientMgr::GetInstance()->GetLocalPlayer())
                CreateDefaultCamera(pCam->GetSubject());
            return true;
        }
        else
        if (pCam->Cmd(plCameraMsg::kPythonOverridePop))
        {
            if (pCam->GetTriggerer() && pCam->GetTriggerer() != plNetClientApp::GetInstance()->GetLocalPlayerKey())
                return true;
            {
                if (fPythonOverride)
                {   
                    fPythonOverride->Pop();
                    FinishTransition();
                    if (plCameraBrain1_FirstPerson::ConvertNoRef(fPythonOverride->GetBrain()) &&
                        !fFirstPersonOverride)
                    {
                        FreezeOutput(2);    
                        UnFadeAvatarIn(1);
                    }
                    GetCurrentStackCamera()->GetBrain()->SetFlags(plCameraBrain1::kCutPosOnce);
                    GetCurrentStackCamera()->GetBrain()->SetFlags(plCameraBrain1::kCutPOAOnce);
                    fX = fY = 0.5f;
                }
                fPythonOverride = nil;
                SetFlags(kFirstPersonEnabled);
#ifdef STATUS_LOG
                camLog->AddLineF("Override Python Camera Disabled");
#endif
                if (fFirstPersonOverride)
                {
                    SetFOV(fFirstPersonOverride->GetFOVw(), fFirstPersonOverride->GetFOVh(), fFirstPersonOverride);
                    fFirstPersonOverride->Push(!HasFlags(kAvatarWalking));
                }
                else
                {
                    SetFOV(GetCurrentStackCamera()->GetFOVw(), GetCurrentStackCamera()->GetFOVh(), GetCurrentStackCamera()); 
                    GetCurrentStackCamera()->Push(!HasFlags(kAvatarWalking));
                }
                
                StartInterpPanLimits();
                if (fFirstPersonOverride)
                    plAvatarInputInterface::GetInstance()->CameraInThirdPerson(false);
                
                if (foutLog)
                {
                    fprintf(foutLog, "********************************************\n");
                    fprintf(foutLog, "popped python camera\n");
                    fprintf(foutLog, "********************************************\n");
                }   

            }
        }
        else
        if (pCam->Cmd(plCameraMsg::kPythonOverridePush) || pCam->Cmd(plCameraMsg::kPythonOverridePushCut))
        {
            if (pCam->GetTriggerer() && pCam->GetTriggerer() != plNetClientApp::GetInstance()->GetLocalPlayerKey())
                return true;
            {
                plCameraModifier1* pCamMod = plCameraModifier1::ConvertNoRef(pCam->GetNewCam()->GetObjectPtr());
                if (pCamMod)
                {
                    
                    if (fPythonOverride)
                    {
                        fPythonOverride->Pop();
                        if (plCameraBrain1_FirstPerson::ConvertNoRef(fPythonOverride->GetBrain()))
                        {
                            FreezeOutput(2);    
                            UnFadeAvatarIn(1);
                        }
                        
#ifdef STATUS_LOG
                        camLog->AddLineF("Override Python Camera Popped because new one coming in");
#endif
                    }
                    fPythonOverride = pCamMod;
#ifdef STATUS_LOG
                    camLog->AddLineF("Override Python Camera Pushing onto stack");
#endif
                    if (foutLog)
                    {
                        fprintf(foutLog, "********************************************\n");
                        fprintf(foutLog, "changed to new camera\n");
                        fprintf(foutLog, "********************************************\n");
                    }   
                    if (fFirstPersonOverride)
                        plAvatarInputInterface::GetInstance()->CameraInThirdPerson(true);
                
                    fPythonOverride->Push(!HasFlags(kAvatarWalking));
                    
                    CamTrans* pTrans = new CamTrans(fPythonOverride->GetKey());
                    if (pCam->Cmd(plCameraMsg::kPythonOverridePushCut))
                        pTrans->fCutPOA = pTrans->fCutPos = true; 
                    StartTransition(pTrans);
                    delete(pTrans);
                    SetFOV(fPythonOverride->GetFOVw(), fPythonOverride->GetFOVh(), fPythonOverride);
                    ClearFlags(kFirstPersonEnabled);
                }
            }
        }
        else
        if ( pCam->Cmd(plCameraMsg::kPythonSetFirstPersonOverrideEnable))
        {
            if (!pCam->HasBCastFlag(plMessage::kNetNonLocal))
            {
                // make sure it was locally sent
                if (pCam->GetActivated())
                {
                    SetFlags(kFirstPersonEnabled);
                    ClearFlags(kScriptsDisabled1st);
                    if (HasFlags(kScriptsForced3rd))
                    {
                        ClearFlags(kScriptsForced3rd);
                        FirstPersonOverride();
                    }
                }
                else
                {
                    ClearFlags(kFirstPersonEnabled);
                    SetFlags(kScriptsDisabled1st);
                }
            }
        }
        else
        if ( pCam->Cmd(plCameraMsg::kPythonUndoFirstPerson))
        {
            if (!pCam->HasBCastFlag(plMessage::kNetNonLocal))
            {
                // make sure it was locally sent
                if (HasFlags(kFirstPersonAtLinkOut))
                {
                    SetFlags(kScriptsForced3rd);
                }
                else
                if (fFirstPersonOverride)
                {
                    SetFlags(kScriptsForced3rd);
                    FirstPersonOverride();
#ifdef STATUS_LOG
                    camLog->AddLineF("Forcing 3rd Person from scripts");
#endif
                    SetFOV(GetCurrentStackCamera()->GetFOVw(), GetCurrentStackCamera()->GetFOVh(), GetCurrentStackCamera()); 
                }
            }
        }
        else
        if ( pCam->Cmd(plCameraMsg::kResponderSetThirdPerson))
        {
            if (plVirtualCam1::StayInFirstPersonForever)
                return true;
            
            if (HasFlags(kJustLinkedIn))
            {
                ClearFlags(kJustLinkedIn);
                plCameraTargetFadeMsg* pMsg = new plCameraTargetFadeMsg;
                pMsg->SetFadeOut(true);
                pMsg->SetSubjectKey(plNetClientMgr::GetInstance()->GetLocalPlayerKey());
                pMsg->SetBCastFlag(plMessage::kBCastByExactType);
                pMsg->SetBCastFlag(plMessage::kNetPropagate, false);
                pMsg->AddReceiver(plNetClientMgr::GetInstance()->GetLocalPlayerKey());
                plgDispatch::MsgSend(pMsg);
                return true;
            }
            if (HasFlags(kScriptsForced3rd))
                return true;
            if (fFirstPersonOverride)
            {
                SetFlags(kResponderForced3rd);
                FirstPersonOverride();
#ifdef STATUS_LOG
                camLog->AddLineF("Forcing 3rd Person from code");
#endif
                SetFOV(GetCurrentStackCamera()->GetFOVw(), GetCurrentStackCamera()->GetFOVh(), GetCurrentStackCamera());
            }
            ClearFlags(kFirstPersonEnabled);
#ifdef STATUS_LOG
            camLog->AddLineF("1st person override disabled");
#endif
        }
        else
        if ( pCam->Cmd(plCameraMsg::kResponderUndoThirdPerson))
        {
            if (HasFlags(kScriptsForced3rd) || HasFlags(kScriptsDisabled1st))
                return true;
            SetFlags(kFirstPersonEnabled);
#ifdef STATUS_LOG
            camLog->AddLineF("1st person override enabled");
#endif

            if (HasFlags(kResponderForced3rd))
            {
                FirstPersonOverride();
                ClearFlags(kResponderForced3rd);
#ifdef STATUS_LOG
                camLog->AddLineF("Restoring 1st Person from code");
#endif
            }
            
        }
        else
        if (pCam->Cmd(plCameraMsg::kRegionPushCamera))
        {
            if (HasFlags(kRegionIgnore))
                return true;
            if (pCam->GetTriggerer() && pCam->GetTriggerer() != plNetClientApp::GetInstance()->GetLocalPlayerKey())
                return true;
            {
                hsBool bDef = pCam->Cmd(plCameraMsg::kSetAsPrimary);
                plKey pCamKey = pCam->GetNewCam();
                if (pCamKey)
                {
                    plCameraModifier1* pCamMod = plCameraModifier1::ConvertNoRef(pCamKey->GetObjectPtr());
                    if (!pCamMod)
                    {
                        plSceneObject* pObj = plSceneObject::ConvertNoRef( pCamKey->GetObjectPtr() );
                        if (!pObj)
                            return true;
                        for (int i = 0; i < pObj->GetNumModifiers(); i++)
                        {
                            plKey pModKey = pObj->GetModifier(i)->GetKey();
                            pCamMod = plCameraModifier1::ConvertNoRef( pModKey->GetObjectPtr() );
                            if ( pCamMod )
                                break;
                        }
                    }
                    if (!pCamMod)
                        return true;
                    if (pCam->Cmd(plCameraMsg::kEntering) || pCam->Cmd(plCameraMsg::kResponderTrigger))
                        PushCamera(pCamMod, bDef);
                    else
                        PopCamera(pCamMod);
                    if (pCam->Cmd(plCameraMsg::kCut))
                        SetFlags(kCutNextTrans);
                }
            }
        }
    }
    plGenRefMsg* pRefMsg = plGenRefMsg::ConvertNoRef(msg);
    if (pRefMsg )
    {
        if( pRefMsg->GetContext() & (plRefMsg::kOnDestroy | plRefMsg::kOnRemove) )
        {
            // unfortunately we cannot rely on the ref message to point at a valid camera
            // (the pointer will match our stack, but it might not be pointing at a valid
            // chunk of memory). Therefore, we cannot use the ConvertNoRef() call, and we
            // cannot call PopCamera. We simply have to settle for removing it from our
            // array. Since this message indicates it was destroyed anyway, this should be
            // ok.
            plCameraModifier1* pMod = (plCameraModifier1*)(pRefMsg->GetRef());
            // we go in reverse so that removes don't mess up our index
            for (int i = fCameraStack.Count() - 1; i >= 0; --i)
            {
                if (fCameraStack[i] == pMod)
                    fCameraStack.Remove(i);
            }
        }
        return true;
    }
    return hsKeyedObject::MsgReceive(msg);
}

void plVirtualCam1::CreateDefaultCamera(plSceneObject* subject)
{
    // If a default cam already exists, we just want to replace the subject (unless it's the same)
    plUoid U(kDefaultCameraMod1_KEY);
    plKey pKey = hsgResMgr::ResMgr()->FindKey(U);
    if (pKey)
    {
        plCameraModifier1* mod = plCameraModifier1::ConvertNoRef(pKey->GetObjectPtr());
        if (mod->GetSubject() == subject)
            return;

        plGenRefMsg* msg = new plGenRefMsg(mod->GetKey(), plRefMsg::kOnReplace, 0, plCameraBrain1::kSubject );
        msg->SetOldRef(mod->GetSubject());
        hsgResMgr::ResMgr()->AddViaNotify(subject->GetKey(), msg, plRefFlags::kPassiveRef);
    }
    else
    {
        plCameraModifier1* pMod = new plCameraModifier1;
        plCameraBrain1_FirstPerson* pBrain = new plCameraBrain1_FirstPerson(pMod);
        pMod->RegisterAs( kDefaultCameraMod1_KEY );
        //pBrain->SetSubject(subject);
        plGenRefMsg* msg = new plGenRefMsg(pMod->GetKey(), plRefMsg::kOnCreate, 0, plCameraBrain1::kSubject ); // SceneObject
        hsgResMgr::ResMgr()->AddViaNotify(subject->GetKey(), msg, plRefFlags::kPassiveRef);
        
        plgDispatch::Dispatch()->RegisterForExactType(plEvalMsg::Index(), pMod->GetKey());
        plgDispatch::Dispatch()->RegisterForExactType(plCameraMsg::Index(), pMod->GetKey());
        
        pMod->SetFOVw(90.0f);
        pMod->SetFOVh(66.7f);
        // set up the brain and to be first-person 
        hsVector3 pt(0,0.0f,5.5);
        pBrain->SetOffset(pt);
        pt.Set(0,-10,5.5);
        pBrain->SetPOAOffset(pt);
        pBrain->SetZPanLimit(0.872f); //radians, == 50 degrees as Decreed By Rand!
        pBrain->SetXPanLimit(0.872f);
        pBrain->SetFlags(plCameraBrain1::kCutPOA);
        pBrain->SetFlags(plCameraBrain1::kCutPos);
        PushCamera(pMod);
    }
    // now deal with the third person camera
    // If a default 3rd person cam already exists, we just want to replace the subject (unless it's the same)
    plUoid Ux(kBuiltIn3rdPersonCamera_KEY);
    plKey pKeyx = hsgResMgr::ResMgr()->FindKey(Ux);
    if (pKeyx)
    {
        plCameraModifier1* mod = plCameraModifier1::ConvertNoRef(pKeyx->GetObjectPtr());
        if (mod->GetSubject() == subject)
            return;

        plGenRefMsg* msg = new plGenRefMsg(mod->GetKey(), plRefMsg::kOnReplace, 0, plCameraBrain1::kSubject );
        msg->SetOldRef(mod->GetSubject());
        hsgResMgr::ResMgr()->AddViaNotify(subject->GetKey(), msg, plRefFlags::kPassiveRef);
    }
    else
    {
        plCameraModifier1* pModx = new plCameraModifier1;
        plCameraBrain1_Avatar* pBrainx = new plCameraBrain1_Avatar(pModx);
        pModx->RegisterAs( kBuiltIn3rdPersonCamera_KEY );
        plGenRefMsg* msgx = new plGenRefMsg(pModx->GetKey(), plRefMsg::kOnCreate, 0, plCameraBrain1::kSubject ); // SceneObject
        hsgResMgr::ResMgr()->AddViaNotify(subject->GetKey(), msgx, plRefFlags::kPassiveRef);

        plgDispatch::Dispatch()->RegisterForExactType(plEvalMsg::Index(), pModx->GetKey());
        plgDispatch::Dispatch()->RegisterForExactType(plCameraMsg::Index(), pModx->GetKey());

        pModx->SetFOVw(90.0f);
        pModx->SetFOVh(66.7f);
        // set up the brain and to be third-person 
        hsVector3 ptx(0, 15, 10);
        pBrainx->SetOffset(ptx);
        ptx.Set(0,0,5.5);
        pBrainx->SetPOAOffset(ptx);
        pBrainx->SetZPanLimit(0.872f);
        pBrainx->SetXPanLimit(0.872f);
        pBrainx->SetVelocity(20.0f);
        pBrainx->SetDecel(10.0f);
        pBrainx->SetAccel(5.0f);
        pBrainx->SetFlags(plCameraBrain1::kCutPOA);
        pBrainx->SetFlags(plCameraBrain1::kMaintainLOS);
        PushCamera(pModx);
        fThirdPersonCam = pModx;
    }
}

void plVirtualCam1::AddCameraToStack(plCameraModifier1* pCam)
{
    fCameraStack.Append(pCam);
    if (pCam->GetBrain())
    {
        if (HasMovementFlag(B_CONTROL_CAMERA_WALK_PAN))
            pCam->GetBrain()->SetMovementFlag(B_CONTROL_CAMERA_WALK_PAN);
    }

    if (pCam->GetKey())
        hsgResMgr::ResMgr()->AddViaNotify(pCam->GetKey(), new plGenRefMsg(GetKey(), plRefMsg::kOnCreate, 0, kRefCamera), plRefFlags::kPassiveRef);
}

void plVirtualCam1::PushCamera(plCameraModifier1* pCam, hsBool bDefault)
{
    // pushing the same camera, folks?
    if (pCam == GetCurrentStackCamera())
    {
        AddCameraToStack(pCam);
        return;
    }
    // make sure that we don't keep adding the default camera if we're already in it
    if (bDefault && pCam == GetCurrentStackCamera())
        return;
    
    // look up whatever transition we might have specified
    CamTrans* pTrans = nil;
    if (pCam->GetNumTrans())
    {
        for (int i = 0; i < pCam->GetNumTrans(); i++)
        {
            if (pCam->GetTrans(i)->fTransTo == GetCurrentStackCamera()->GetKey())
            {   // if it is specifically for this camera, this is the one to use    
                pTrans = pCam->GetTrans(i);
                break;
            }
            else // if it's generic, assign it but keep looking for a specific one...
            if (pCam->GetTrans(i)->fTransTo == nil)
                pTrans = pCam->GetTrans(i);
        }
    }
    // bail out if we are supposed to be ignoring this camera
    if (pTrans && pTrans->fIgnore)
        return;

    // lose the drive camera if that's where we are at
    if (GetCurrentStackCamera() == fDriveCamera)
        PopCamera(fDriveCamera);

    if (plCameraBrain1_Drive::ConvertNoRef(pCam->GetBrain()) ||
        !GetCurrentStackCamera())
    {
        // special camera mode (like drive) just add it
        if (GetCurrentStackCamera())
            GetCurrentStackCamera()->Pop();
        pCam->Push(!HasFlags(kAvatarWalking));
        AddCameraToStack(pCam);
        return;
    }
    
#ifdef STATUS_LOG
    IHandleCameraStatusLog(pCam, kPush);
#endif

    // are we mouse-looking?
    if (GetCurrentStackCamera() && GetCurrentStackCamera()->GetBrain() && GetCurrentStackCamera()->GetBrain()->HasMovementFlag(S_SET_FREELOOK))
        pCam->GetBrain()->SetMovementFlag(S_SET_FREELOOK);

    // do anything special upon activating this camera
    if (GetCurrentStackCamera())
    {
        // is the avatar faded out?
        if (GetCurrentStackCamera()->GetFaded() &&!fFirstPersonOverride)
        {
            if (!pCam->SetFaded(true))
            {
                // new camera doesn't support fading, fade him back in
                plCameraTargetFadeMsg* pMsg = new plCameraTargetFadeMsg;
                pMsg->SetFadeOut(false);
                pMsg->SetSubjectKey(GetCurrentStackCamera()->GetBrain()->GetSubject()->GetKey());
                pMsg->SetBCastFlag(plMessage::kBCastByExactType);
                plgDispatch::MsgSend(pMsg);
            }
        }
        else
        {
            // check the rare instance that maybe we have fallen down to the bottom of the stack and hit the 
            // built-in first person cam, and are now pushing something on top of it...
            plUoid U(kDefaultCameraMod1_KEY);
            plKey pKey = hsgResMgr::ResMgr()->FindKey(U);
            if ( (pKey && pKey == GetCurrentStackCamera()->GetKey()) ||
                 (plCameraBrain1_FirstPerson::ConvertNoRef(GetCurrentStackCamera()->GetBrain())) )
            {
                FreezeOutput(2);    
                UnFadeAvatarIn(1);
            }

        }
        GetCurrentStackCamera()->Pop();
    }
    pCam->Push(!HasFlags(kAvatarWalking));

    // handle transition between the cameras
    
    // if the player is warping, just cut
    plUoid U(kDefaultCameraMod1_KEY);
    plKey pDefKey = hsgResMgr::ResMgr()->FindKey(U);
    
    if (HasFlags(kCutNextTrans))
    {
        if (fTransPos == POS_TRANS_FOLLOW)
            FinishTransition();
        if (pCam->GetKey() != pDefKey)
            ClearFlags(kCutNextTrans);
        AddCameraToStack(pCam);
        if (pCam->GetBrain())
        {
            pCam->GetBrain()->SetFlags(plCameraBrain1::kCutPosOnce);
            pCam->GetBrain()->SetFlags(plCameraBrain1::kCutPOAOnce);
        }
        StartInterpPanLimits();
    }
    else
    if (!fPythonOverride)
    {
        // check to see if the new camera has a transition override for the current camera
        if (!pTrans)
        {
            // do a stock transition
            if (plCameraBrain1_Avatar::ConvertNoRef(GetCurrentStackCamera()->GetBrain()) ||
                plCameraBrain1_Avatar::ConvertNoRef(pCam->GetBrain()) )
            {
                // do a track transition here;
                fPrevCam = GetCurrentStackCamera();
                AddCameraToStack(pCam);
                pTrans = new CamTrans(pCam->GetKey());
                StartTransition(pTrans);
                delete(pTrans);
#ifdef STATUS_LOG
                camLog->AddLineF("Performing stock track transition between %s and %s",fPrevCam->GetKeyName(), pCam->GetKeyName());
#endif
            }
            else
            {
                // both fixed brains, cut between them
                AddCameraToStack(pCam);
                pTrans = new CamTrans(pCam->GetKey());
                pTrans->fCutPOA = true;
                pTrans->fCutPos = true;
                StartTransition(pTrans);
                delete(pTrans);
#ifdef STATUS_LOG
                camLog->AddLineF("Performing stock cut transition between %s and %s",fPrevCam->GetKeyName(), pCam->GetKeyName());
#endif
            }
        }
        else
        {
            // do the specified transition
            fPrevCam = GetCurrentStackCamera();
            AddCameraToStack(pCam);
            StartTransition(pTrans);
#ifdef STATUS_LOG
            camLog->AddLineF("Performing custom transition between %s and %s",fPrevCam->GetKeyName(), pCam->GetKeyName());
#endif

        }
    }
    else
    {
        // just push it on, since we have a python camera present.
        AddCameraToStack(pCam);
#ifdef STATUS_LOG
        camLog->AddLineF("No transition between %s and %s, python camera is currently displaying",fPrevCam->GetKeyName(), pCam->GetKeyName());
#endif
    }
    // make this the default camera if that's what we want...
    if (fCameraStack.Count() > 0 && bDefault)
    {   
        fCameraStack.SetCountAndZero(0);
        AddCameraToStack(pCam);
#ifdef STATUS_LOG   
        camLog->AddLineF("Camera %s is now the DEFAULT camera for this age", pCam->GetKeyName());
#endif  
    }
    SetFOV(GetCurrentStackCamera()->GetFOVw(), GetCurrentStackCamera()->GetFOVh(), GetCurrentStackCamera()); 
}

void plVirtualCam1::PopCamera(plCameraModifier1* pCam)
{
        // sanity / new default camera check
    if (fCameraStack.Count() <= 1)
        return;
    
    // is it the current camera AND the same camera we would otherwise switch to?
    if (pCam==GetCurrentStackCamera() && pCam == fCameraStack[fCameraStack.Count() - 2])
    {
        // pop but don't transition to a new camera
        // or do anything else:
        fCameraStack.Remove(fCameraStack.Count() - 1);
        return;
    }

    // are we mouse-looking?
    hsBool mLook = false;
    if (pCam->GetBrain() && pCam->GetBrain()->HasMovementFlag(S_SET_FREELOOK))
        mLook = true;

    // do anything special upon de-activating this camera
    pCam->Pop();
    
    if (plCameraBrain1_FirstPerson::ConvertNoRef(pCam->GetBrain()))
    {
        FreezeOutput(2);    
        UnFadeAvatarIn(1);
    }
    else
    if (plCameraBrain1_Drive::ConvertNoRef(pCam->GetBrain()) ||
        !GetCurrentStackCamera())
    {
        // special camera mode (like drive) just pop it
        fCameraStack.Remove(fCameraStack.Count() - 1);
        GetCurrentStackCamera()->Push(!HasFlags(kAvatarWalking));       
        return;
    }

    if (pCam == GetCurrentStackCamera())
    {
#ifdef STATUS_LOG
    IHandleCameraStatusLog(pCam, kPop);
#endif

        // pop and actually transition to a new camera
        fCameraStack.Remove(fCameraStack.Count() - 1);
        
        if (GetCurrentStackCamera())
        {   
            // update this camera
            GetCurrentStackCamera()->Push(!HasFlags(kAvatarWalking));


#ifdef STATUS_LOG
    IHandleCameraStatusLog(GetCurrentStackCamera(), kReplacement);
#endif
            
            if (mLook)
                GetCurrentStackCamera()->GetBrain()->SetMovementFlag(S_SET_FREELOOK);

            // is the avatar faded out?
            if (pCam->GetFaded())
            {
                if (!GetCurrentStackCamera()->SetFaded(true))
                {
                    // new camera doesn't support fading, fade him back in
                    plCameraTargetFadeMsg* pMsg = new plCameraTargetFadeMsg;
                    pMsg->SetFadeOut(false);
                    pMsg->SetSubjectKey(pCam->GetBrain()->GetSubject()->GetKey());
                    pMsg->SetBCastFlag(plMessage::kBCastByExactType);
                    plgDispatch::MsgSend(pMsg);
                }
            }


            // handle transition between the cameras
            // check to see if the new camera has a transition override for the current camera
            CamTrans* pTrans = nil;
            if (GetCurrentStackCamera()->GetNumTrans())
            {
                for (int i = 0; i < GetCurrentStackCamera()->GetNumTrans(); i++)
                {
                    if (GetCurrentStackCamera()->GetTrans(i)->fTransTo == pCam->GetKey())
                    {   
                        pTrans = GetCurrentStackCamera()->GetTrans(i);
                        break;
                    }
                    else
                    if (GetCurrentStackCamera()->GetTrans(i)->fTransTo == nil)
                        pTrans = GetCurrentStackCamera()->GetTrans(i);
                }
            }
            if (!pTrans)
            {
                // do a stock transition
                if (plCameraBrain1_Avatar::ConvertNoRef(GetCurrentStackCamera()->GetBrain()) ||
                    plCameraBrain1_Avatar::ConvertNoRef(pCam->GetBrain()) )
                {
                    // do a track transition here;
                    fPrevCam = pCam;
                    pTrans = new CamTrans(GetCurrentStackCamera()->GetKey());
                    StartTransition(pTrans);
                    delete(pTrans);
                }
                else
                {
                    fPrevCam = pCam;
                    pTrans = new CamTrans(GetCurrentStackCamera()->GetKey());
                    pTrans->fCutPOA = true;
                    pTrans->fCutPos = true;
                    StartTransition(pTrans);
                    delete(pTrans);
                }
            }
            else
            {
                // do the specified transition
                fPrevCam = pCam;
                StartTransition(pTrans);
            }
        }
    }
    else
    {
#ifdef STATUS_LOG
    IHandleCameraStatusLog(pCam, kBackgroundPop);
#endif
        // just remove this from the stack
        for (int i = 0; i < fCameraStack.Count(); i++)
        {
            if (fCameraStack[i] == pCam)
            {   
                fCameraStack.Remove(i);
                break;
            }
        }
    }
    if (!InTransition())
        SetFOV(GetCurrentStackCamera()->GetFOVw(), GetCurrentStackCamera()->GetFOVh(), GetCurrentStackCamera()); 
}

void plVirtualCam1::PopAll()
{
}

void plVirtualCam1::StartTransition(CamTrans* transition)
{
    
    if ((transition->fCutPos && transition->fCutPOA) || GetCurrentStackCamera()->IsAnimated() || alwaysCutForColin )
    {
        if (fTransPos == POS_TRANS_FOLLOW)
            FinishTransition();
        // we want to cut, set new camera to cut to current pos and FOV
        if (GetCurrentStackCamera()->GetBrain())
        {
            GetCurrentStackCamera()->GetBrain()->SetFlags(plCameraBrain1::kCutPOAOnce);
            GetCurrentStackCamera()->GetBrain()->SetFlags(plCameraBrain1::kCutPosOnce);
            SetFOV(GetCurrentStackCamera()->GetFOVw(), GetCurrentStackCamera()->GetFOVh(), GetCurrentStackCamera()); 
            fXPanLimit = GetCurrentStackCamera()->GetBrain()->GetXPanLimit();
            fZPanLimit = GetCurrentStackCamera()->GetBrain()->GetZPanLimit();
            StartInterpPanLimits();
        }
        
#ifdef STATUS_LOG
        camLog->AddLineF("Camera Cut Transition Completed");
#endif
        return;
    }

    if (fFirstPersonOverride)
    {
        FinishTransition();
        return;
    }

    plCameraModifier1* pCam = GetCurrentStackCamera();
    plCameraBrain1* pBrain = 0;

#ifdef STATUS_LOG
    if (fPrevCam->GetKey() && pCam->GetKey())
        camLog->AddLineF("Starting Camera Transition from %s to %s",fPrevCam->GetKeyName(), pCam->GetKeyName());
#endif
    
    if ( (fPythonOverride && plCameraBrain1_Avatar::ConvertNoRef(fPythonOverride->GetBrain())) ||
         (plCameraBrain1_Avatar::ConvertNoRef(pCam->GetBrain()) && !fPythonOverride) )
    {   
        plCameraBrain1_Avatar* pAvBrain = new plCameraBrain1_Avatar;
        
        pAvBrain->SetOffset(((plCameraBrain1_Avatar*)pCam->GetBrain())->GetOffset());
        pAvBrain->SetPOAOffset(pCam->GetBrain()->GetPOAOffset());
        if (pCam->GetBrain()->HasFlag(plCameraBrain1::kMaintainLOS))
            pAvBrain->SetFlags(plCameraBrain1::kMaintainLOS);   
        
        if (((plCameraBrain1_Avatar*)pCam->GetBrain())->HasFlag(plCameraBrain1::kWorldspacePOA))
            pAvBrain->SetFlags(plCameraBrain1::kWorldspacePOA);
        if (((plCameraBrain1_Avatar*)pCam->GetBrain())->HasFlag(plCameraBrain1::kWorldspacePos))
            pAvBrain->SetFlags(plCameraBrain1::kWorldspacePos);

//      if (plCameraBrain1_Avatar::ConvertNoRef(fPrevCam->GetBrain()) && pCam->GetBrain()->GetPOAOffset() == fPrevCam->GetBrain()->GetPOAOffset())
//      {
//          pAvBrain->SetFlags(plCameraBrain1::kCutPOA);
//      }
        pAvBrain->SetSubject(pCam->GetBrain()->GetSubject());
        pBrain = pAvBrain;  
    }
    else
    {
        pBrain = new plCameraBrain1;
    }
    pBrain->SetFlags(plCameraBrain1::kIsTransitionCamera);
    
    // set up transition speeds
    pBrain->SetAccel(transition->fAccel);
    pBrain->SetDecel(transition->fDecel);
    pBrain->SetVelocity(transition->fVelocity);

//  if (!pBrain->HasFlag(plCameraBrain1::kCutPOA))
    if (0)
    {
        // see if the transition between POA's is going to swing the camera more than 90 degrees
        hsVector3 curVec(fPrevCam->GetTargetPos() - fPrevCam->GetTargetPOA());
        hsVector3 transVec(pCam->GetTargetPOA() - fPrevCam->GetTargetPOA());
        curVec.fZ = transVec.fZ = 0;
        transVec.Normalize();
        curVec.Normalize();
        float dot = curVec * transVec;
        if (dot <= 0.5f || transVec.MagnitudeSquared() != 0.0f) 
        {
            pBrain->SetPOAAccel(100);
            pBrain->SetPOADecel(100);
            pBrain->SetPOAVelocity(200);
#ifdef STATUS_LOG
        camLog->AddLineF("Congradulations you triggered the dont-swing-the-POA-more-than-90-degrees override\n");
        camLog->AddLineF("If you don't like this transition then you need to redesign the cameras involved\n");
#endif
            
        }
        else
        {
            pBrain->SetPOAAccel(transition->fPOAAccel);
            pBrain->SetPOADecel(transition->fPOADecel);
            pBrain->SetPOAVelocity(transition->fPOAVelocity);
        }
    }
    // make sure that the new camera is where it should be
    pCam->SetTargetPos(pCam->GetBrain()->GetGoal());
    pCam->SetTargetPOA(pCam->GetBrain()->GetPOAGoal());
    // and the transition is trying to go where it should
    pBrain->SetGoal(pCam->GetTargetPos());
    pBrain->SetPOAGoal(pCam->GetTargetPOA());

    // set transition camera parameters
    if (fTransPos != POS_TRANS_FOLLOW)
    {
        fTransitionCamera->SetTargetPos(fPrevCam->GetTargetPos());
        fTransitionCamera->SetTargetPOA(fPrevCam->GetTargetPOA());
        fTransitionCamera->SetTransform(fPrevCam->GetTargetPOA());
        if (fPrevCam->GetInSubworld())
        {
            fTransitionCamera->SetSubworldPos(fPrevCam->GetSubworldPos());
            fTransitionCamera->SetSubworldPOA(fPrevCam->GetSubworldPOA());
            fTransitionCamera->InSubworld(true);
        }
    }
    else
    // we're already in transition...
    {
        plCameraBrain1* pOldBrain = fTransitionCamera->GetBrain();
        // match speeds to the old brain so we don't stop mid-transition
        pBrain->SetCurrentCamSpeed(pOldBrain->GetCurrentCamSpeed());
        pBrain->SetCurrentViewSpeed(pOldBrain->GetCurrentViewSpeed());
        delete(pOldBrain);
        fTransitionCamera->SetBrain(nil);
#ifdef STATUS_LOG
        camLog->AddLineF("Stopping in-progress camera transition");
#endif
    }
    
    if (transition->fCutPos)
    {   
        pCam->GetBrain()->SetFlags(plCameraBrain1::kCutPosOnce);
        pBrain->SetFlags(plCameraBrain1::kCutPos);
    }
    if (transition->fCutPOA)
    {   
        pBrain->SetFlags(plCameraBrain1::kCutPOA);
        pCam->GetBrain()->SetFlags(plCameraBrain1::kCutPOAOnce);    
    }
    fTransitionCamera->SetBrain(pBrain);
    pBrain->SetCamera(fTransitionCamera);

    // deal with FOV - 
    float diffH = hsABS(pCam->GetFOVh() - fPrevCam->GetFOVh());
    if ( diffH )
    {
        double time = 0;
        hsVector3 dist;
        // figure out transition time
        if (transition->fCutPos)
        {
            hsPoint3 poadist = fTransitionCamera->GetTargetPOA() - pCam->GetTargetPOA();
            dist.Set(&poadist);
        }
        else
        {
            hsPoint3 posdist = fTransitionCamera->GetTargetPos() - pCam->GetTargetPos();
            dist.Set(&posdist);
        }
        
        time = (double)(dist.Magnitude() / pBrain->GetVelocity());
        
        // set up the transition camera to the current FOV
        fTransitionCamera->SetFOVh(GetFOVh(), false);
        fTransitionCamera->SetFOVw(GetFOVw(), false);
        fTransitionCamera->GetBrain()->SetFOVGoal(pCam->GetFOVh(), time);

    }
    StartInterpPanLimits();
    fTransPos = POS_TRANS_FOLLOW;
}

void plVirtualCam1::RunTransition()
{
    if (fTransPos != POS_TRANS_FOLLOW)
        return;
    
    plCameraModifier1* pToCam = fPythonOverride;
    if (!pToCam)
        pToCam = GetCurrentStackCamera();

    hsVector3 v1(fTransitionCamera->GetTargetPos() - pToCam->GetTargetPos());
    hsVector3 v2(fTransitionCamera->GetBrain()->GetPOAGoal() - fTransitionCamera->GetTargetPOA());
    
    if ( v1.MagnitudeSquared() <= 0.0001f && v2.MagnitudeSquared() <= 0.0001f &&
        !fTransitionCamera->GetBrain()->HasFlag(plCameraBrain1::kAnimateFOV))
    {   
        FinishTransition();
    }
    else
    {
        pToCam->Update();
        fTransitionCamera->GetBrain()->SetGoal(pToCam->GetTargetPos());
        fTransitionCamera->GetBrain()->SetPOAGoal(pToCam->GetBrain()->GetPOAGoal());
        // check for panic velocity
        plCameraBrain1* pBrain = pToCam->GetBrain();
        plCameraBrain1_Avatar* pAvBr = plCameraBrain1_Avatar::ConvertNoRef(pBrain);
        if (pAvBr)
        {
            float off = pAvBr->GetOffset().MagnitudeSquared();
            hsVector3 dist(pToCam->GetTargetPos() - fTransitionCamera->GetTargetPos());
            if (dist.MagnitudeSquared() > off)
                fTransitionCamera->GetBrain()->SetFlags(plCameraBrain1::kPanicVelocity);
            else
                fTransitionCamera->GetBrain()->ClearFlags(plCameraBrain1::kPanicVelocity);

        }

    }
}

void plVirtualCam1::FinishTransition()
{
    plCameraBrain1* pBrain = fTransitionCamera->GetBrain();
    delete(pBrain);
    fTransitionCamera->SetBrain(nil);
    
    fTransPos = POS_TRANS_OFF;
#ifdef STATUS_LOG
    camLog->AddLineF("Finished Camera Transition");
#endif

}


void plVirtualCam1::IHandleCameraStatusLog(plCameraModifier1* pMod, int action)
{
#ifdef STATUS_LOG

    if (!pMod->GetKey())
        return;
    camLog->AddLineF("..");
    plCameraBrain1* pBrain = pMod->GetBrain();
    switch(action)
    {
    case kPop:
        camLog->AddLineF("Popped Camera %s from top of stack", pMod->GetKeyName());
        break;
    case kBackgroundPop:
        camLog->AddLineF("Popped Camera %s from background", pMod->GetKeyName());
        break;
    case kPush:
        camLog->AddLineF("Pushed Camera %s", pMod->GetKeyName());
        break;
    case kReplacement:
        camLog->AddLineF("Camera %s replacing popped camera", pMod->GetKeyName());
        break;
    }
    if (pBrain)
    {
        if (plCameraBrain1_Circle::ConvertNoRef(pBrain))
        {   
            camLog->AddLineF("Brain type Circle");
        }
        else
        if (plCameraBrain1_Fixed::ConvertNoRef(pBrain))
        {
            camLog->AddLineF("Brain type Fixed");
            camLog->AddLineF("POAOffset %f %f %f", pBrain->GetPOAOffset().fX,pBrain->GetPOAOffset().fY,pBrain->GetPOAOffset().fZ); 
        }
        else
        if (plCameraBrain1_FirstPerson::ConvertNoRef(pBrain))
        {
            camLog->AddLineF("Brain type 1st Person");
        }
        else
        if (plCameraBrain1_Avatar::ConvertNoRef(pBrain))
        {
            camLog->AddLineF("Brain type 3rd Person");
        }
        camLog->AddLineF("FOV %f",pMod->GetFOVw());
        camLog->AddLineF("..");
    }
#endif
}
