/*==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 "plMorphSequence.h"
#include "plMorphSequenceSDLMod.h"

#include "plAccessGeometry.h"
#include "plAccessVtxSpan.h"

#include "../pnSceneObject/plSceneObject.h"
#include "../pnSceneObject/plDrawInterface.h"
#include "../pnSceneObject/plCoordinateInterface.h"

#include "plDrawableSpans.h"
#include "plInstanceDrawInterface.h"

#include "hsResMgr.h"
#include "plgDispatch.h"
#include "../plMessage/plRenderMsg.h"

#include "plSharedMesh.h"

#include "plTweak.h"
#include "hsTimer.h"
#include "hsFastMath.h"

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

void plMorphDataSet::Read(hsStream* s, hsResMgr* mgr)
{
	hsKeyedObject::Read(s, mgr);
	
	int n = s->ReadSwap32();
	fMorphs.SetCount(n);
	int i;
	for( i = 0; i < n; i++ )
		fMorphs[i].Read(s, mgr);
}

void plMorphDataSet::Write(hsStream* s, hsResMgr* mgr)
{
	hsKeyedObject::Write(s, mgr);

	s->WriteSwap32(fMorphs.GetCount());
	int i;
	for( i = 0; i < fMorphs.GetCount(); i++ )
		fMorphs[i].Write(s, mgr);
}	

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

const UInt32 kChanMask = plAccessVtxSpan::kPositionMask
						| plAccessVtxSpan::kNormalMask
						| plAccessVtxSpan::kUVWMask;

// Probably want another type which is just initialize/override
// so we can set the mesh to whatever base set we want, as if
// that's what got loaded from disk.
// Use Access RW. That might already be handled in the customization stuff.

plConst(hsScalar)	kMorphTime(0.5);

class plMorphTarget
{
public:
	UInt16		fLayer;
	UInt16		fDelta;
	hsScalar	fWeight;
};

hsTArray<plMorphTarget> fTgtWgts;

plMorphSequence::plMorphSequence()
:	fMorphFlags(0),
	fMorphSDLMod(nil),
	fGlobalLayerRef(-1)
{
}

plMorphSequence::~plMorphSequence()
{
	DeInit();
}

hsBool plMorphSequence::MsgReceive(plMessage* msg)
{
	plRenderMsg* rend = plRenderMsg::ConvertNoRef(msg);
	if( rend )
	{
		// For now, I'm ignoring the target weight stuff for shared meshes.
		// Can always add it in later if desired.
		if( fTgtWgts.GetCount() )
		{
			hsScalar delWgt = hsTimer::GetDelSysSeconds() / (kMorphTime > 0 ? kMorphTime : 1.e-3f);
			int i;
			for( i = 0; i < fTgtWgts.GetCount(); i++ )
			{
				hsScalar currWgt = GetWeight(fTgtWgts[i].fLayer, fTgtWgts[i].fDelta);
				if( fTgtWgts[i].fWeight < currWgt )
				{
					if( fTgtWgts[i].fWeight >= (currWgt -= delWgt) )
						currWgt = fTgtWgts[i].fWeight;
				}
				else if( fTgtWgts[i].fWeight > currWgt )
				{
					if( fTgtWgts[i].fWeight <= (currWgt += delWgt) )
						currWgt = fTgtWgts[i].fWeight;
				}
				
				fMorphs[fTgtWgts[i].fLayer].SetWeight(fTgtWgts[i].fDelta, currWgt);

				if( fTgtWgts[i].fWeight == currWgt )
				{
					fTgtWgts.Remove(i);
					i--;
				}
			}
			ISetDirty(true);
		}

		if( !(fMorphFlags & kDirty) )
		{
			// We went a whole frame without getting dirty, 
			// we can stop refreshing now.
			plgDispatch::Dispatch()->UnRegisterForExactType(plRenderMsg::Index(), GetKey());

			return true;
		}
		ISetDirty(false);
		if( fMorphFlags & kDirtyIndices )
			IFindIndices();

		if( fMorphFlags & kHaveShared )
		{
			IApplyShared();
		}
		else
		{
			Apply();
		}
		return true;
	}

	plSharedMeshBCMsg *smMsg = plSharedMeshBCMsg::ConvertNoRef(msg);
	if (smMsg)
	{
		if (IGetDrawInterface()->GetKey() == smMsg->GetSender() || IIsUsingDrawable(smMsg->fDraw))
			fMorphFlags |= kDirtyIndices;
	}			

	plGenRefMsg *refMsg = plGenRefMsg::ConvertNoRef(msg);
	if (refMsg)
	{
		plSharedMesh *mesh = plSharedMesh::ConvertNoRef(refMsg->GetRef());
		if (mesh)
		{
			if( refMsg->GetContext() & (plRefMsg::kOnCreate|plRefMsg::kOnRequest) )
			{
				AddSharedMesh(mesh);
			}
			else if( refMsg->GetContext() & plRefMsg::kOnReplace)
			{
				plSharedMesh *oldMesh = plSharedMesh::ConvertNoRef(refMsg->GetOldRef());
				if (oldMesh)
					RemoveSharedMesh(oldMesh);
				AddSharedMesh(mesh);
			}
			else if( refMsg->GetContext() & (plRefMsg::kOnDestroy|plRefMsg::kOnRemove) )
				RemoveSharedMesh(mesh);				
			
			return true;
		}
	}
	
	return plSingleModifier::MsgReceive(msg);
}

int plMorphSequence::GetNumLayers(plKey meshKey /* = nil */) const
{
	int index = IFindSharedMeshIndex(meshKey);
	if (index < 0)
		return fMorphs.GetCount();
	else
		return fSharedMeshes[index].fMesh->fMorphSet->fMorphs.GetCount();
}

int plMorphSequence::GetNumDeltas(int iLay, plKey meshKey /* = nil */) const 
{ 
	int index = IFindSharedMeshIndex(meshKey);
	if (index < 0)
		return fMorphs[iLay].GetNumDeltas(); 
	else
		return fSharedMeshes[index].fMesh->fMorphSet->fMorphs[iLay].GetNumDeltas();
}

hsScalar plMorphSequence::GetWeight(int iLay, int iDel, plKey meshKey /* = nil */) const 
{ 
	int index = IFindSharedMeshIndex(meshKey);
	if (index == -1)
		return fMorphs[iLay].GetWeight(iDel); 
	else
		return fSharedMeshes[index].fArrayWeights[iLay].fDeltaWeights[iDel];
}

void plMorphSequence::SetWeight(int iLay, int iDel, hsScalar w, plKey meshKey /* = nil */)
{
	int index = IFindSharedMeshIndex(meshKey);

	// Only dirty if the weight isn't for a pending mesh
	if(meshKey == nil || index >= 0)
		ISetDirty(true);

	if (meshKey == nil)
	{
		if( iLay < fMorphs.GetCount() )
		{
			if( kMorphTime > 0 )
			{
				plMorphTarget tgt;
				tgt.fLayer = iLay;
				tgt.fDelta = iDel;
				tgt.fWeight = w;

				fTgtWgts.Append(tgt);
			}
			else
			{
				fMorphs[iLay].SetWeight(iDel, w);
			}
		}
	}
	else if (index >= 0)
	{
		fSharedMeshes[index].fArrayWeights[iLay].fDeltaWeights[iDel] = w;
		fSharedMeshes[index].fFlags |= plSharedMeshInfo::kInfoDirtyMesh;
		if (index == fGlobalLayerRef)
			ISetAllSharedToGlobal();
	}
	else
	{
		// Setting weight for a mesh we haven't added yet (loading state)
		index = IFindPendingStateIndex(meshKey);
		if (index < 0)
		{
			fPendingStates.Push();
			index = fPendingStates.GetCount() - 1;
			fPendingStates[index].fSharedMeshKey = meshKey;
		}
		if (fPendingStates[index].fArrayWeights.GetCount() <= iLay)
		{
			int had = fPendingStates[index].fArrayWeights.GetCount();
			hsTArray<plMorphArrayWeights> temp(iLay + 1);
			temp = fPendingStates[index].fArrayWeights;
			temp.SetCount(iLay + 1);

			fPendingStates[index].fArrayWeights.Swap(temp);
			int i;
			for( i = had; i < iLay+1; i++ )
				fPendingStates[index].fArrayWeights[i].fDeltaWeights.Reset();
		}
		if (fPendingStates[index].fArrayWeights[iLay].fDeltaWeights.GetCount() <= iDel)
			fPendingStates[index].fArrayWeights[iLay].fDeltaWeights.ExpandAndZero(iDel + 1);

		fPendingStates[index].fArrayWeights[iLay].fDeltaWeights[iDel] = w;
	}
}

void plMorphSequence::ISetDirty(hsBool on) 
{ 
	if( on )
	{
		if( !(fMorphFlags & kDirty) )
			plgDispatch::Dispatch()->RegisterForExactType(plRenderMsg::Index(), GetKey());
		fMorphFlags |= kDirty; 

		// Even if we know we're already dirty, there could be new info this frame.
		// Need to tell our scene object
		//
		// Actually, in the case of the avatar, this sends an insane flurry of messages to the server 
		// when we drag (or even just hold the mouse button down on) the morph scrollbars. 
		// These messages are completely unneccessary. We broadcast our state when we join a new age, and that's enough.
		// Non-avatar related morphs (if they ever exist) will need to call DirtySynchState some special
		// way. Not here.
		//
		//if (GetTarget(0))
		//	GetTarget(0)->DirtySynchState(kSDLMorphSequence, 0);
	}
	else
	{
		fMorphFlags &= ~kDirty; 
	}
}

// MorphSequence - Init
void plMorphSequence::Init()
{
	if( fMorphFlags & kHaveShared )
	{
		IFindIndices();
	}
	else
	{
		if( !GetHaveSnap() )
		{
			// Take an access snapshot of all our spans
			const plDrawInterface* di = IGetDrawInterface();

			plAccessGeometry::Instance()->TakeSnapShot(di, kChanMask);

			ISetHaveSnap(true);
		}
	}
}

void plMorphSequence::Activate()
{
	Init();
	ISetDirty(true);
}

void plMorphSequence::DeActivate()
{
	if( fMorphFlags & kHaveShared )
	{
		IReleaseIndices();
	}
	plgDispatch::Dispatch()->UnRegisterForExactType(plRenderMsg::Index(), GetKey());
}

// MorphSequence - DeInit
void plMorphSequence::DeInit()
{
	if( fMorphFlags & kHaveShared )
	{
		IReleaseIndices();
	}
	else
	{
		if( GetHaveSnap() )
		{
			// Release all our snapshot data
			const plDrawInterface* di = IGetDrawInterface();

			if( di ) 
				plAccessGeometry::Instance()->ReleaseSnapShot(di);

			ISetHaveSnap(false);
		}
	}
}

void plMorphSequence::IRenormalize(hsTArray<plAccessSpan>& dst) const
{
	int i;
	for( i = 0; i < dst.GetCount(); i++ )
	{
		hsAssert(dst[i].HasAccessVtx(), "Come on, everyone has vertices");
		plAccessVtxSpan& accVtx = dst[i].AccessVtx();
		int j;
		for( j = 0; j < accVtx.VertCount(); j++ )
		{
			hsFastMath::Normalize(accVtx.Normal(j));
		}
	}
}

// MorphSequence - Apply
void plMorphSequence::Apply() const
{
	const plDrawInterface* di = IGetDrawInterface();
	if( !di )
		return;

	// Reset to initial.
	Reset(di);

	// We'll be accumulating into the buffer, so open RW
	hsTArray<plAccessSpan> dst;
	plAccessGeometry::Instance()->OpenRW(di, dst);

	// For each MorphArray
	int i;
	for( i = 0; i < fMorphs.GetCount(); i++ )
	{
		// Apply Delta
		fMorphs[i].Apply(dst);
	}

	IRenormalize(dst);

	// Close up the access spans
	plAccessGeometry::Instance()->Close(dst);
}

// MorphSequence - Reset to initial
void plMorphSequence::Reset(const plDrawInterface* di) const
{
	if( !di )
	{
		di = IGetDrawInterface();
	}

	// Use access span RestoreSnapshot
	if( di )
		plAccessGeometry::Instance()->RestoreSnapShot(di, kChanMask);
}

const plDrawInterface* plMorphSequence::IGetDrawInterface() const
{
	plSceneObject* so = GetTarget();
	if( !so )
		return nil;

	const plDrawInterface* di = so->GetDrawInterface();

	return di;
}

void plMorphSequence::AddTarget(plSceneObject* so)
{
	plSingleModifier::AddTarget(so);

	if (!fMorphSDLMod)
	{
		fMorphSDLMod = TRACKED_NEW plMorphSequenceSDLMod;
		so->AddModifier(fMorphSDLMod);
	}
}

void plMorphSequence::RemoveTarget(plSceneObject *so)
{
	plSingleModifier::RemoveTarget(so);

	if (so)
		if (fMorphSDLMod)
			so->RemoveModifier(fMorphSDLMod);

	delete fMorphSDLMod;
	fMorphSDLMod = nil;		
}
	
void plMorphSequence::Read(hsStream* s, hsResMgr* mgr)
{
	plSingleModifier::Read(s, mgr);

	fMorphFlags = 0;

	int n = s->ReadSwap32();
	fMorphs.SetCount(n);
	int i;
	for( i = 0; i < n; i++ )
		fMorphs[i].Read(s, mgr);
	
	n = s->ReadSwap32();
	for( i = 0; i < n; i++)
		mgr->ReadKeyNotifyMe(s, TRACKED_NEW plGenRefMsg(GetKey(), plRefMsg::kOnCreate, -1, -1), plRefFlags::kActiveRef);
}

void plMorphSequence::Write(hsStream* s, hsResMgr* mgr)
{
	plSingleModifier::Write(s, mgr);

	s->WriteSwap32(fMorphs.GetCount());
	int i;
	for( i = 0; i < fMorphs.GetCount(); i++ )
		fMorphs[i].Write(s, mgr);

	s->WriteSwap32(fSharedMeshes.GetCount());
	for( i = 0; i < fSharedMeshes.GetCount(); i++ )
		mgr->WriteKey(s, fSharedMeshes[i].fMesh);
}

// Normal sequence of calls:
// 1) on notification that meshes have changed (or activate)
//		IFindIndices() - Sets up indices 
//		IApplyShared() - Find which mesh is active and
//			IResetShared(iActive);
//			IApplyShared(iActive);
//		go dormant
// 2) on weight change
//		SetWeight() - Register for render message and set the new weight
// 3) on render msg:
//		if dirty
//			IApplyShared() - Find which mesh is active and
//				IResetShared(iActive);
//				IApplyShared(iActive);
//		else
//			Unregister for render message.
// 4) on deinit
//		IReleaseIndices() - Just let's us know there's nothing much to be done.
//

void plMorphSequence::IResetShared()
{
	int i;
	for (i = 0; i < fSharedMeshes.GetCount(); i++)
		IResetShared(i);
}

void plMorphSequence::IApplyShared()
{
	int i;
	for (i = 0; i < fSharedMeshes.GetCount(); i++)
	{
		IResetShared(i);
		IApplyShared(i);
	}
}

void plMorphSequence::IFindIndices()
{
	fMorphFlags &= ~kDirtyIndices;

	int i;
	for( i = 0; i < fSharedMeshes.GetCount(); i++ )
		IFindIndices(i);
}

void plMorphSequence::IReleaseIndices()
{
	int i;
	for( i = 0; i < fSharedMeshes.GetCount(); i++ )
		IReleaseIndices(i);
}


void plMorphSequence::IApplyShared(int iShare)
{
	if( iShare >= fSharedMeshes.GetCount() || fSharedMeshes[iShare].fCurrDraw == nil)
		return;

	plSharedMeshInfo& mInfo = fSharedMeshes[iShare];

	hsTArray<plAccessSpan> dst;
	// Now copy each shared mesh geometryspan into the drawable
	// to get it back to it's pristine condition.
	int i;
	for( i = 0; i < mInfo.fMesh->fSpans.GetCount(); i++ )
	{
		plAccessSpan dstAcc;
		plAccessGeometry::Instance()->OpenRW(mInfo.fCurrDraw, mInfo.fCurrIdx[i], dstAcc);

		dst.Append(dstAcc);
	}

	// For each MorphArray
	for( i = 0; i < mInfo.fMesh->fMorphSet->fMorphs.GetCount(); i++ )
	{
		// Apply Delta
		mInfo.fMesh->fMorphSet->fMorphs[i].Apply(dst, &mInfo.fArrayWeights[i].fDeltaWeights);
	}

	IRenormalize(dst);

	// Close up the access spans
	plAccessGeometry::Instance()->Close(dst);
	mInfo.fFlags &= ~plSharedMeshInfo::kInfoDirtyMesh;
}

hsBool plMorphSequence::IResetShared(int iShare)
{
	if( iShare >= fSharedMeshes.GetCount() || fSharedMeshes[iShare].fCurrDraw == nil)
		return false;

	plSharedMeshInfo& mInfo = fSharedMeshes[iShare];

	// Now copy each shared mesh geometryspan into the drawable
	// to get it back to it's pristine condition.
	int i;
	for( i = 0; i < mInfo.fMesh->fSpans.GetCount(); i++ )
	{
		plAccessSpan srcAcc;
		plAccessGeometry::Instance()->AccessSpanFromGeometrySpan(srcAcc, mInfo.fMesh->fSpans[i]);
		plAccessSpan dstAcc;
		plAccessGeometry::Instance()->OpenRW(mInfo.fCurrDraw, mInfo.fCurrIdx[i], dstAcc);
		
		plAccPosNormUVWIterator srcIter(&srcAcc.AccessVtx());
		plAccPosNormUVWIterator dstIter(&dstAcc.AccessVtx());

		const int numUVWs = srcAcc.AccessVtx().NumUVWs();

		for( srcIter.Begin(), dstIter.Begin(); srcIter.More(); srcIter.Advance(), dstIter.Advance() )
		{
			*dstIter.Position() = *srcIter.Position();
			*dstIter.Normal() = *srcIter.Normal();

			int j;
			for( j = 0; j < numUVWs; j++ )
				*dstIter.UVW(j) = *srcIter.UVW(j);
		}
	}

	return true;
}

hsBool plMorphSequence::IFindIndices(int iShare)
{
	plSharedMeshInfo& mInfo = fSharedMeshes[iShare];
	mInfo.fCurrDraw = nil; // In case we fail.

	const plInstanceDrawInterface* di = plInstanceDrawInterface::ConvertNoRef(IGetDrawInterface());
	if( !di )
		return false;

	Int32 meshIdx = di->GetSharedMeshIndex(mInfo.fMesh);
	if( meshIdx < 0 )
		return false;

	plDrawableSpans* dr = plDrawableSpans::ConvertNoRef(di->GetDrawable((UInt8)meshIdx));
	if( !dr )
		return false;

	mInfo.fCurrDraw = dr;

	plDISpanIndex& diIndex = dr->GetDISpans(di->GetDrawableMeshIndex((UInt8)meshIdx));

	hsAssert(mInfo.fMesh->fSpans.GetCount() == diIndex.GetCount(), "Mismatch between geometry and indices");

	mInfo.fCurrIdx.SetCount(diIndex.GetCount());

	int i;
	for( i = 0; i < diIndex.GetCount(); i++ )
		mInfo.fCurrIdx[i] = diIndex[i];

	return true;
}

void plMorphSequence::IReleaseIndices(int iShare)
{
	plSharedMeshInfo& mInfo = fSharedMeshes[iShare];
	mInfo.fCurrDraw = nil;
}

Int32 plMorphSequence::IFindSharedMeshIndex(plKey meshKey) const
{
	int i;
	for( i = 0; i < fSharedMeshes.GetCount(); i++ )
	{
		if (fSharedMeshes[i].fMesh->GetKey() == meshKey)
			return i;
	}

	return -1;
}

Int32 plMorphSequence::IFindPendingStateIndex(plKey meshKey) const
{
	int i;
	for( i = 0; i < fPendingStates.GetCount(); i++ )
	{
		if (fPendingStates[i].fSharedMeshKey == meshKey)
			return i;
	}
	
	return -1;
}

hsBool plMorphSequence::IIsUsingDrawable(plDrawable *draw)
{
	int i;
	for (i = 0; i < fSharedMeshes.GetCount(); i++)
	{
		if (fSharedMeshes[i].fCurrDraw == draw)
			return true;
	}

	return false;
}

void plMorphSequence::AddSharedMesh(plSharedMesh* mesh)
{
	// This happens if SDL state tells us to use a mesh without morph info
	// (Either because the object used to but no longer does, or because
	// the SDL is giving us the wrong key.)
	if (!mesh->fMorphSet)
		return;

	if (fSharedMeshes.GetCount() == 0)
		plgDispatch::Dispatch()->RegisterForExactType(plSharedMeshBCMsg::Index(), GetKey());

	if (IFindSharedMeshIndex(mesh->GetKey()) >= 0)
		return; // We already have it.

	hsAssert(fSharedMeshes.GetCount() < 127, "Too many meshes for one morph sequence.");
	SetUseSharedMesh(true);	
	int pendingIndex = IFindPendingStateIndex(mesh->GetKey());

	plSharedMeshInfo mInfo;
	mInfo.fMesh = mesh;
	mInfo.fCurrDraw = nil;

	// Intialize our weights to zero.
	mInfo.fArrayWeights.Reset();
	mInfo.fArrayWeights.SetCount(mesh->fMorphSet->fMorphs.GetCount());
	int i, j;
	for (i = 0; i < mesh->fMorphSet->fMorphs.GetCount(); i++)
		mInfo.fArrayWeights[i].fDeltaWeights.ExpandAndZero(mesh->fMorphSet->fMorphs[i].GetNumDeltas());
			
	// Aha, we have some pending weights. Copy them in!
	if (pendingIndex >= 0)
	{
		// Filter in any data that's valid
		for (i = 0; i < mInfo.fArrayWeights.GetCount() && i < fPendingStates[pendingIndex].fArrayWeights.GetCount(); i++)
		{
			for (j = 0; j < mInfo.fArrayWeights[i].fDeltaWeights.GetCount() && 
					    j < fPendingStates[pendingIndex].fArrayWeights[i].fDeltaWeights.GetCount(); j++)
			{
				mInfo.fArrayWeights[i].fDeltaWeights[j] = fPendingStates[pendingIndex].fArrayWeights[i].fDeltaWeights[j];
			}
		}
			
		fPendingStates.Remove(pendingIndex);

		mInfo.fFlags |= plSharedMeshInfo::kInfoDirtyMesh;
		ISetDirty(true);
	}

	fSharedMeshes.Append(mInfo);
	IFindIndices(fSharedMeshes.GetCount() - 1);

	if (mesh->fFlags & plSharedMesh::kLayer0GlobalToMod)
	{
		fGlobalLayerRef = fSharedMeshes.GetCount() - 1;
		ISetAllSharedToGlobal();
	}
	else 
		ISetSingleSharedToGlobal(fSharedMeshes.GetCount() - 1);
}

void plMorphSequence::RemoveSharedMesh(plSharedMesh* mesh)
{
	int idx = IFindSharedMeshIndex(mesh->GetKey());
	if (idx < 0)
		return; // Don't have it... can't remove it can we?
	
	fSharedMeshes.Remove(idx);

	fGlobalLayerRef = -1;
	int i;
	for (i = 0; i < fSharedMeshes.GetCount(); i++)
	{
		if (fSharedMeshes[i].fMesh->fFlags & plSharedMesh::kLayer0GlobalToMod)
		{
			fGlobalLayerRef = i;
			break;
		}
	}
	
	if (fSharedMeshes.GetCount() == 0)
		plgDispatch::Dispatch()->UnRegisterForExactType(plSharedMeshBCMsg::Index(), GetKey());
}

void plMorphSequence::FindMorphMods(const plSceneObject *so, hsTArray<const plMorphSequence*> &mods)
{
	const plMorphSequence *morph = plMorphSequence::ConvertNoRef(so->GetModifierByType(plMorphSequence::Index()));
	if (morph)
		mods.Append(morph);
	
	const plCoordinateInterface *ci = so->GetCoordinateInterface();
	int i;
	for (i = 0; i < ci->GetNumChildren(); i++)
		FindMorphMods(ci->GetChild(i)->GetOwner(), mods);
}

void plMorphSequence::ISetAllSharedToGlobal()
{
	int i;
	for (i = 0; i < fSharedMeshes.GetCount(); i++)
	{
		if (i != fGlobalLayerRef)
			ISetSingleSharedToGlobal(i);
	}
}

void plMorphSequence::ISetSingleSharedToGlobal(int idx)
{
	if (fGlobalLayerRef < 0)
		return;

	int i;
	for (i = 0; i < fSharedMeshes[fGlobalLayerRef].fArrayWeights[0].fDeltaWeights.GetCount(); i++)
		SetWeight(0, i, fSharedMeshes[fGlobalLayerRef].fArrayWeights[0].fDeltaWeights[i], fSharedMeshes[idx].fMesh->GetKey());
}