/*==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 "hsTypes.h"
#include "hsTimer.h"
#include "plLayerAnimation.h"
#include "../pnKeyedObject/plKey.h"

#include "../plInterp/plController.h"
#include "../plMessage/plAnimCmdMsg.h"
#include "../plMessage/plLinkToAgeMsg.h"
#include "../pnMessage/plSDLModifierMsg.h"
#include "../plModifier/plLayerSDLModifier.h"
#include "../pnMessage/plCameraMsg.h"
#include "../plNetClient/plLinkEffectsMgr.h"
#include "plgDispatch.h"
#include "hsResMgr.h"
#include "../plModifier/plSDLModifier.h"
#include "../plSDL/plSDL.h"
#include "../pnMessage/plSDLNotificationMsg.h"
#include "../plMessage/plAvatarMsg.h"

plLayerAnimationBase::plLayerAnimationBase()
: 
	fPreshadeColorCtl(nil), 
	fRuntimeColorCtl(nil),
	fAmbientColorCtl(nil), 
	fSpecularColorCtl(nil),
	fOpacityCtl(nil), 
	fTransformCtl(nil),
	fEvalTime(-1.0),
	fCurrentTime(-1.f),
	fSegmentID(nil)
{
}

plLayerAnimationBase::~plLayerAnimationBase()
{
	delete fPreshadeColorCtl;
	delete fRuntimeColorCtl;
	delete fAmbientColorCtl;
	delete fSpecularColorCtl;
	delete fOpacityCtl;
	delete fTransformCtl;
	delete [] fSegmentID;
}

void plLayerAnimationBase::Read(hsStream* s, hsResMgr* mgr)
{
	plLayerInterface::Read(s, mgr);

	fPreshadeColorCtl = plController::ConvertNoRef(mgr->ReadCreatable(s));
	fRuntimeColorCtl = plController::ConvertNoRef( mgr->ReadCreatable( s ) );
	fAmbientColorCtl = plController::ConvertNoRef(mgr->ReadCreatable(s));
	fSpecularColorCtl = plController::ConvertNoRef(mgr->ReadCreatable(s));
	fOpacityCtl = plController::ConvertNoRef(mgr->ReadCreatable(s));
	fTransformCtl = plController::ConvertNoRef(mgr->ReadCreatable(s));

	if( fOpacityCtl )
	{
		fOwnedChannels |= kOpacity;
		fOpacity = TRACKED_NEW hsScalar;
	}
	if( fPreshadeColorCtl )
	{
		fOwnedChannels |= kPreshadeColor;
		fPreshadeColor = TRACKED_NEW hsColorRGBA;
	}
	if( fRuntimeColorCtl )
	{
		fOwnedChannels |= kRuntimeColor;
		fRuntimeColor = TRACKED_NEW hsColorRGBA;
	}
	if( fAmbientColorCtl )
	{
		fOwnedChannels |= kAmbientColor;
		fAmbientColor = TRACKED_NEW hsColorRGBA;
	}
	if( fSpecularColorCtl )
	{
		fOwnedChannels |= kSpecularColor;
		fSpecularColor = TRACKED_NEW hsColorRGBA;
	}
	if( fTransformCtl )
	{
		fOwnedChannels |= kTransform;
		fTransform = TRACKED_NEW hsMatrix44;
	}
	fLength = IMakeUniformLength();
}

void plLayerAnimationBase::Write(hsStream* s, hsResMgr* mgr)
{
	plLayerInterface::Write(s, mgr);

	mgr->WriteCreatable(s, fPreshadeColorCtl);
	mgr->WriteCreatable(s, fRuntimeColorCtl);
	mgr->WriteCreatable(s, fAmbientColorCtl);
	mgr->WriteCreatable(s, fSpecularColorCtl);
	mgr->WriteCreatable(s, fOpacityCtl);
	mgr->WriteCreatable(s, fTransformCtl);
}

plLayerInterface* plLayerAnimationBase::Attach(plLayerInterface* prev)
{
	return plLayerInterface::Attach(prev);
}

void plLayerAnimationBase::IEvalConvertedTime(hsScalar secs, UInt32 passChans, UInt32 evalChans, UInt32 &dirty)
{
	if( evalChans & kPreshadeColor )
	{
		fPreshadeColorCtl->Interp(fCurrentTime, fPreshadeColor);
		dirty |= kPreshadeColor;
	}
	else if( passChans & kPreshadeColor )
	{
		*fPreshadeColor = fUnderLay->GetPreshadeColor();
	}

	if( evalChans & kRuntimeColor )
	{
		fRuntimeColorCtl->Interp( fCurrentTime, fRuntimeColor );
		dirty |= kRuntimeColor;
	}
	else if( passChans & kRuntimeColor )
	{
		*fRuntimeColor = fUnderLay->GetRuntimeColor();
	}

	if( evalChans & kAmbientColor )
	{
		fAmbientColorCtl->Interp(fCurrentTime, fAmbientColor);
		dirty |= kAmbientColor;
	}
	else if( passChans & kAmbientColor )
	{
		*fAmbientColor = fUnderLay->GetAmbientColor();
	}

	if( evalChans & kSpecularColor )
	{
		fSpecularColorCtl->Interp( fCurrentTime, fSpecularColor );
		dirty |= kSpecularColor;
	}
	else if( passChans & kSpecularColor )
	{
		*fSpecularColor = fUnderLay->GetSpecularColor();
	}

	if( evalChans & kOpacity )
	{
		fOpacityCtl->Interp(fCurrentTime, fOpacity);
		*fOpacity *= 1.e-2f;
		dirty |= kOpacity;
	}
	else if( passChans & kOpacity )
	{
		*fOpacity = fUnderLay->GetOpacity();
	}

	if( evalChans & kTransform )
	{
		fTransformCtl->Interp(fCurrentTime, fTransform);
		dirty |= kTransform;
	}
	else if( passChans & kTransform )
	{
		*fTransform = fUnderLay->GetTransform();
	}
	fPassThruChannels = 0; // already handled, don't need to keep passing them through.
}

hsBool plLayerAnimationBase::MsgReceive(plMessage* msg)
{
	return plLayerInterface::MsgReceive(msg);
}

void plLayerAnimationBase::SetPreshadeColorCtl(plController* colCtl)
{
	if( fPreshadeColorCtl )
		delete fPreshadeColorCtl;
	else
		fPreshadeColor = TRACKED_NEW hsColorRGBA;

	fOwnedChannels |= kPreshadeColor;
	fPreshadeColorCtl = colCtl;
}

void plLayerAnimationBase::SetRuntimeColorCtl(plController* colCtl)
{
	if( fRuntimeColorCtl )
		delete fRuntimeColorCtl;
	else
		fRuntimeColor = TRACKED_NEW hsColorRGBA;

	fOwnedChannels |= kRuntimeColor;
	fRuntimeColorCtl = colCtl;
}

void plLayerAnimationBase::SetAmbientColorCtl(plController* ambCtl)
{
	if( fAmbientColorCtl )
		delete fAmbientColorCtl;
	else
		fAmbientColor = TRACKED_NEW hsColorRGBA;

	fOwnedChannels |= kAmbientColor;
	fAmbientColorCtl = ambCtl;
}

void plLayerAnimationBase::SetSpecularColorCtl(plController* ambCtl)
{
	if( fSpecularColorCtl )
		delete fSpecularColorCtl;
	else
		fSpecularColor = TRACKED_NEW hsColorRGBA;

	fOwnedChannels |= kSpecularColor;
	fSpecularColorCtl = ambCtl;
}

void plLayerAnimationBase::SetOpacityCtl(plController* opaCtl)
{
	if( fOpacityCtl )
		delete fOpacityCtl;
	else
		fOpacity = TRACKED_NEW hsScalar;

	fOwnedChannels |= kOpacity;
	fOpacityCtl = opaCtl;
}

void plLayerAnimationBase::SetTransformCtl(plController* xfmCtl)
{
	if( fTransformCtl )
		delete fTransformCtl;
	else
		fTransform = TRACKED_NEW hsMatrix44;

	fOwnedChannels |= kTransform;
	fTransformCtl = xfmCtl;
}

hsScalar plLayerAnimationBase::IMakeUniformLength()
{
	fLength = 0;
	if( fPreshadeColorCtl && (fPreshadeColorCtl->GetLength() > fLength) )
		fLength = fPreshadeColorCtl->GetLength();
	if( fRuntimeColorCtl && (fRuntimeColorCtl->GetLength() > fLength) )
		fLength = fRuntimeColorCtl->GetLength();
	if( fAmbientColorCtl && (fAmbientColorCtl->GetLength() > fLength) )
		fLength = fAmbientColorCtl->GetLength();
	if( fSpecularColorCtl && (fSpecularColorCtl->GetLength() > fLength) )
		fLength = fSpecularColorCtl->GetLength();
	if( fOpacityCtl && (fOpacityCtl->GetLength() > fLength) )
		fLength = fOpacityCtl->GetLength();
	if( fTransformCtl && (fTransformCtl->GetLength() > fLength) )
		fLength = fTransformCtl->GetLength();

	return fLength;
}

/////////////////////////////////////////////////////////////////////////////////

plLayerAnimation::plLayerAnimation()
:
	plLayerAnimationBase(),
	fLayerSDLMod(nil)
{
	fTimeConvert.SetOwner(this);
}

plLayerAnimation::~plLayerAnimation()
{
	delete fLayerSDLMod;
}

void plLayerAnimation::Read(hsStream* s, hsResMgr* mgr)
{
	plLayerAnimationBase::Read(s, mgr);

	fTimeConvert.Read(s, mgr);	
	if (!(fTimeConvert.IsStopped()))
	{	
		plSynchEnabler ps(true);	// enable dirty tracking so that we send state about
									// the anim resetting to start now.
		fTimeConvert.SetCurrentAnimTime(0, true);
	}
	Eval(hsTimer::GetSysSeconds(),0,0);

	// add sdl modifier
	delete fLayerSDLMod;
	fLayerSDLMod = TRACKED_NEW plLayerSDLModifier;
	fLayerSDLMod->SetLayerAnimation(this);
}


void plLayerAnimation::Write(hsStream* s, hsResMgr* mgr)
{
	plLayerAnimationBase::Write(s, mgr);

	fTimeConvert.Write(s, mgr);
}

plLayerInterface* plLayerAnimation::Attach(plLayerInterface* prev)
{
	fCurrentTime = fTimeConvert.CurrentAnimTime()-1.f;

	return plLayerAnimationBase::Attach(prev);
}

UInt32 plLayerAnimation::Eval(double wSecs, UInt32 frame, UInt32 ignore)
{
	UInt32 dirty = plLayerInterface::Eval(wSecs, frame, ignore);
	if( wSecs != fEvalTime )
	{
		UInt32 evalChans = 0;
		UInt32 passChans = dirty | fPassThruChannels;
		hsScalar secs = fTimeConvert.WorldToAnimTime(wSecs);
		if( secs != fCurrentTime )
		{
			evalChans = fOwnedChannels & ~ignore & ~fPassThruChannels;
			fCurrentTime = secs;
		}

		IEvalConvertedTime(secs, passChans, evalChans, dirty);
	}
	fEvalTime = wSecs;
	return dirty;
}

hsBool plLayerAnimation::MsgReceive(plMessage* msg)
{
	// pass sdl msg to sdlMod
	plSDLModifierMsg* sdlMsg = plSDLModifierMsg::ConvertNoRef(msg);
	if (sdlMsg && fLayerSDLMod)
	{
		if (fLayerSDLMod->MsgReceive(sdlMsg))
			return true;	// msg handled
	}

	hsBool retVal = false;
	plAnimCmdMsg* cmdMsg = plAnimCmdMsg::ConvertNoRef(msg);
	if( cmdMsg )
	{
		// Evaluate first, so we'll be transitioning from our
		// real current state, whether we've been evaluated (in view)
		// lately or not.
		TopOfStack()->Eval(hsTimer::GetSysSeconds(), 0, 0);
		retVal = fTimeConvert.HandleCmd(cmdMsg);
		DirtySynchState(kSDLLayer, 0);
	}

	if( retVal )
	{
		if( !fTimeConvert.IsStopped() || fTimeConvert.GetFlag(plAnimTimeConvert::kForcedMove) )
		{
			ClaimChannels(fOwnedChannels);
			fCurrentTime = -1.f; // force an eval
		}
	}
	else
	{
		retVal = plLayerAnimationBase::MsgReceive(msg);
	}
	
	return retVal;
}

void plLayerAnimation::DefaultAnimation()
{
	IMakeUniformLength();
	fTimeConvert.SetBegin(0);
	fTimeConvert.SetEnd(fLength);
	fTimeConvert.SetLoopPoints(0,fLength);
	fTimeConvert.Loop();
	fTimeConvert.Start();
}

///////////////////////////////////////////////////////////////////////////////////////

plLayerLinkAnimation::plLayerLinkAnimation() : 
	fLinkKey(nil), 
	fLeavingAge(true),
	fEnabled(true), 
	fFadeFlags(0), 
	fLastFadeFlag(0),
	fFadeFlagsDirty(false) 
{ 
	fIFaceCallback = TRACKED_NEW plEventCallbackMsg();
	fIFaceCallback->fEvent = kTime;
	fIFaceCallback->fRepeats = 0;			
}

plLayerLinkAnimation::~plLayerLinkAnimation() 
{ 
	hsRefCnt_SafeUnRef(fIFaceCallback);
}


void plLayerLinkAnimation::Read(hsStream* s, hsResMgr* mgr)
{
	plLayerAnimation::Read(s, mgr);
	
	fLinkKey = mgr->ReadKey(s);
	fLeavingAge = s->ReadBool();
	plgDispatch::Dispatch()->RegisterForExactType(plLinkEffectBCMsg::Index(), GetKey());
	plgDispatch::Dispatch()->RegisterForExactType(plLinkEffectPrepBCMsg::Index(), GetKey());
	plgDispatch::Dispatch()->RegisterForExactType(plCameraTargetFadeMsg::Index(), GetKey());
	plgDispatch::Dispatch()->RegisterForExactType(plAvatarStealthModeMsg::Index(), GetKey());
	plgDispatch::Dispatch()->RegisterForExactType(plIfaceFadeAvatarMsg::Index(), GetKey());
	plgDispatch::Dispatch()->RegisterForExactType(plPseudoLinkAnimTriggerMsg::Index(), GetKey());
	
	fIFaceCallback->AddReceiver(GetKey());	
}


void plLayerLinkAnimation::Write(hsStream* s, hsResMgr* mgr)
{
	plLayerAnimation::Write(s, mgr);
	
	mgr->WriteKey(s, fLinkKey);
	s->WriteBool(fLeavingAge);
}

UInt32 plLayerLinkAnimation::Eval(double wSecs, UInt32 frame, UInt32 ignore)
{
	UInt32 dirty = plLayerInterface::Eval(wSecs, frame, ignore);
	if (wSecs != fEvalTime)
	{
		UInt32 evalChans = 0;
		UInt32 passChans = dirty | fPassThruChannels;
		hsScalar oldAnimTime = fTimeConvert.CurrentAnimTime();
		hsScalar secs = oldAnimTime;
		
		if (fFadeFlagsDirty)
		{
			hsScalar goal = 0.f;

			if (fFadeFlags & kFadeLinkPrep)
				secs = goal = fLength;
			else
			{
				hsScalar rate = 0.f;
				hsScalar delta = (hsScalar)(wSecs - fEvalTime);
				
				if (fFadeFlags & kFadeLinking)
				{
					goal = fLength;
					rate = 1.f;
				}
				else if (fFadeFlags & kFadeCamera)
				{
					goal = fLength;
					rate = 10.f;
				}
				else if (fFadeFlags & (kFadeIFace | kFadeCCR))
				{
					goal = fLength * 0.4f;
					rate = 10.f;
				}
				else if (fFadeFlags == 0)
				{
					goal = 0.f;
					if (fLastFadeFlag == kFadeLinking)
						rate = 1.f;
					else
						rate = 10.f;
				}

				if (fabs(oldAnimTime - goal) < delta * rate || rate == 0)
					secs = goal;
				else if (goal > oldAnimTime)
					secs = oldAnimTime + delta * rate;
				else
					secs = oldAnimTime - delta * rate;
			}

			if (secs == goal)
				fFadeFlagsDirty = false;
		}
		
		if( secs != fCurrentTime )
		{
			fTimeConvert.SetCurrentAnimTime(secs);
			if (secs == 0.f || oldAnimTime == 0.f)
			{
				// Either we're going opaque, or we were opaque and now we're fading.
				// Tell the armature to re-eval its opacity settings.
				plAvatarOpacityCallbackMsg *opacityMsg = TRACKED_NEW plAvatarOpacityCallbackMsg(fLinkKey, kStop);
				opacityMsg->SetBCastFlag(plMessage::kPropagateToModifiers);
				opacityMsg->Send();
			}				
			evalChans = fOwnedChannels & ~ignore & ~fPassThruChannels;
			fCurrentTime = secs;
		}
		IEvalConvertedTime(secs, passChans, evalChans, dirty);
	}
	fEvalTime = wSecs;
	return dirty;
}

void plLayerLinkAnimation::SetFadeFlag(UInt8 flag, hsBool val)
{
	if (val)
		fFadeFlags |= flag;
	else
		fFadeFlags &= ~flag;

	if (fFadeFlags == 0)
		fLastFadeFlag = flag;
	
	TopOfStack()->Eval(hsTimer::GetSysSeconds(), 0, 0);
	ClaimChannels(fOwnedChannels);
	fCurrentTime = -1; // force eval
	fFadeFlagsDirty = true;
}

hsBool plLayerLinkAnimation::MsgReceive( plMessage* pMsg )
{
	plLinkEffectPrepBCMsg *bcpMsg = plLinkEffectPrepBCMsg::ConvertNoRef(pMsg);
	if (bcpMsg != nil)
	{
		if (bcpMsg->fLinkKey != fLinkKey || bcpMsg->fLeavingAge)
			return true;
	
		SetFadeFlag(kFadeLinkPrep, true);
		return true;
	}
		
		
	plLinkEffectBCMsg *msg = plLinkEffectBCMsg::ConvertNoRef(pMsg);
	if (msg != nil)
	{
		if (msg->fLinkKey == fLinkKey)
		{
			SetFadeFlag(kFadeLinkPrep, false);
			if (msg->HasLinkFlag(plLinkEffectBCMsg::kLeavingAge))
				SetFadeFlag(kFadeLinking, true);
			else
				SetFadeFlag(kFadeLinking, false);

			if (msg->HasLinkFlag(plLinkEffectBCMsg::kSendCallback))
			{
				plLinkEffectsMgr *mgr;
				if (mgr = plLinkEffectsMgr::ConvertNoRef(msg->GetSender()->ObjectIsLoaded()))
					mgr->WaitForEffect(msg->fLinkKey, fTimeConvert.GetEnd() - fTimeConvert.GetBegin());
			}			
		}
		return true;
	}

	plPseudoLinkAnimTriggerMsg* pSeudoMsg = plPseudoLinkAnimTriggerMsg::ConvertNoRef(pMsg);
	if (pSeudoMsg)
	{
		if (fLinkKey != pSeudoMsg->fAvatarKey)
			return true;

		if (pSeudoMsg->fForward)
			SetFadeFlag(kFadeLinking, true);
		else
			SetFadeFlag(kFadeLinking, false);
		
		// add a callback for when it's done if it's in forward
		plLinkEffectsMgr *mgr;
		if (mgr = plLinkEffectsMgr::ConvertNoRef(pMsg->GetSender()->ObjectIsLoaded()))
			if (pSeudoMsg->fForward)
				mgr->WaitForPseudoEffect(fLinkKey, fTimeConvert.GetEnd() - fTimeConvert.GetBegin());

		return true;
	}
	// used to fade the player in or out when entering / exiting first person mode
	// or when distance between camera and player is too small...
	plCameraTargetFadeMsg* fMsg = plCameraTargetFadeMsg::ConvertNoRef(pMsg);
	if (fMsg)
	{
		if (fLinkKey != fMsg->GetSubjectKey())
			return true;

		if (fMsg->FadeOut())
			SetFadeFlag(kFadeCamera, true);
		else
			SetFadeFlag(kFadeCamera, false);	

		return true;
	}
	plIfaceFadeAvatarMsg* iMsg = plIfaceFadeAvatarMsg::ConvertNoRef(pMsg);
	if (iMsg)
	{
		if (fLinkKey != iMsg->GetSubjectKey())
			return true;

		if (iMsg->GetEnable())
		{
			Enable(true);
		}
		else if (iMsg->GetDisable())
		{
			Enable(false); // disable and un-fade
			SetFadeFlag(kFadeIFace, false);
		}
		else
		if (fEnabled)
		{
			if (iMsg->FadeOut())
				SetFadeFlag(kFadeIFace, true);
			else
				SetFadeFlag(kFadeIFace, false);
		}
		return true;
	}

	plAvatarStealthModeMsg *sMsg = plAvatarStealthModeMsg::ConvertNoRef(pMsg);
	if (sMsg)
	{
		if (sMsg->GetSender() == fLinkKey)
		{
			if (sMsg->fMode == plAvatarStealthModeMsg::kStealthCloakedButSeen)
			{
				SetFadeFlag(kFadeCCR, true);
			}
			else if (sMsg->fMode == plAvatarStealthModeMsg::kStealthVisible)
			{
				SetFadeFlag(kFadeCCR, false);
			}
			// Don't need to set opacity if we're fully cloaked, since we won't
			// even be drawing the spans (due to plEnableMsg() on the sceneObject)
		}
		return true;
	}

	return plLayerAnimation::MsgReceive( pMsg );
}

///////////////////////////////////////////////////////////////////////////////////////////////

plLayerSDLAnimation::plLayerSDLAnimation() : plLayerAnimationBase(), fVar(nil), fVarName(nil) {}

plLayerSDLAnimation::~plLayerSDLAnimation()
{
	delete [] fVarName;
}

UInt32 plLayerSDLAnimation::Eval(double wSecs, UInt32 frame, UInt32 ignore)
{
	UInt32 dirty = plLayerInterface::Eval(wSecs, frame, ignore);
	if( wSecs != fEvalTime )
	{
		UInt32 evalChans = 0;
		UInt32 passChans = dirty | fPassThruChannels;

		if (fEvalTime < 0)
		{
			if (fVarName != nil)
			{
				extern const plSDLModifier *ExternFindAgeSDL();
				const plSDLModifier *sdlMod = ExternFindAgeSDL();
				if (sdlMod)
				{
					fVar = sdlMod->GetStateCache()->FindVar(fVarName);
					if (fVar)
						sdlMod->AddNotifyForVar(GetKey(), fVarName, 0);
				}
			}
		}
		hsScalar secs;
		if (fVar)
			fVar->Get(&secs);
		else
			secs = 0.f;

		// We're guaranteed a 0-1 time. Scale that to our animation length.
		secs *= GetLength();

		if( secs != fCurrentTime )
		{
			evalChans = fOwnedChannels & ~ignore & ~fPassThruChannels;
			fCurrentTime = secs;
		}

		IEvalConvertedTime(secs, passChans, evalChans, dirty);
	}
	fEvalTime = wSecs;
	return dirty;
}

hsBool plLayerSDLAnimation::MsgReceive(plMessage* msg)
{
	plSDLNotificationMsg* nMsg = plSDLNotificationMsg::ConvertNoRef(msg);
	if (nMsg)
	{
		TopOfStack()->Eval(hsTimer::GetSysSeconds(), 0, 0);
		ClaimChannels(fOwnedChannels);
		return true;
	}

	return plLayerAnimationBase::MsgReceive(msg);
}

void plLayerSDLAnimation::Read(hsStream* s, hsResMgr* mgr)
{
	plLayerAnimationBase::Read(s, mgr);

	fVarName = s->ReadSafeString();
}

void plLayerSDLAnimation::Write(hsStream* s, hsResMgr* mgr)
{
	plLayerAnimationBase::Write(s, mgr);

	s->WriteSafeString(fVarName);
}

void plLayerSDLAnimation::SetVarName(char *name) 
{ 
	delete [] fVarName; 
	fVarName = hsStrcpy(name); 
}