First version of the SOurce SDK 2013

1 files changed, 2071 insertions, 0 deletions

diff --git a/mp/src/game/client/c_baseflex.cpp b/mp/src/game/client/c_baseflex.cpp
new file mode 100644
index 00000000..a39b5f35
--- /dev/null
+++ b/mp/src/game/client/c_baseflex.cpp
@@ -0,0 +1,2071 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//

+//

+// Purpose: 

+//

+// $NoKeywords: $

+//===========================================================================//

+#include "cbase.h"

+#include "filesystem.h"

+#include "sentence.h"

+#include "hud_closecaption.h"

+#include "engine/ivmodelinfo.h"

+#include "engine/ivdebugoverlay.h"

+#include "bone_setup.h"

+#include "soundinfo.h"

+#include "tools/bonelist.h"

+#include "KeyValues.h"

+#include "tier0/vprof.h"

+#include "toolframework/itoolframework.h"

+#include "choreoevent.h"

+#include "choreoscene.h"

+#include "choreoactor.h"

+#include "toolframework_client.h"

+

+// memdbgon must be the last include file in a .cpp file!!!

+#include "tier0/memdbgon.h"

+

+bool UseHWMorphVCDs();

+

+ConVar g_CV_PhonemeDelay("phonemedelay", "0", 0, "Phoneme delay to account for sound system latency." );

+ConVar g_CV_PhonemeFilter("phonemefilter", "0.08", 0, "Time duration of box filter to pass over phonemes." );

+ConVar g_CV_FlexRules("flex_rules", "1", 0, "Allow flex animation rules to run." );

+ConVar g_CV_BlinkDuration("blink_duration", "0.2", 0, "How many seconds an eye blink will last." );

+ConVar g_CV_FlexSmooth("flex_smooth", "1", 0, "Applies smoothing/decay curve to flex animation controller changes." );

+

+#if defined( CBaseFlex )

+#undef CBaseFlex

+#endif

+

+IMPLEMENT_CLIENTCLASS_DT(C_BaseFlex, DT_BaseFlex, CBaseFlex)

+	RecvPropArray3( RECVINFO_ARRAY(m_flexWeight), RecvPropFloat(RECVINFO(m_flexWeight[0]))),

+	RecvPropInt(RECVINFO(m_blinktoggle)),

+	RecvPropVector(RECVINFO(m_viewtarget)),

+

+#ifdef HL2_CLIENT_DLL

+	RecvPropFloat( RECVINFO(m_vecViewOffset[0]) ),

+	RecvPropFloat( RECVINFO(m_vecViewOffset[1]) ),

+	RecvPropFloat( RECVINFO(m_vecViewOffset[2]) ),

+

+	RecvPropVector(RECVINFO(m_vecLean)),

+	RecvPropVector(RECVINFO(m_vecShift)),

+#endif

+

+END_RECV_TABLE()

+

+BEGIN_PREDICTION_DATA( C_BaseFlex )

+

+/*

+	// DEFINE_FIELD( C_BaseFlex, m_viewtarget, FIELD_VECTOR ),

+	// DEFINE_ARRAY( C_BaseFlex, m_flexWeight, FIELD_FLOAT, 64 ),

+	// DEFINE_FIELD( C_BaseFlex, m_blinktoggle, FIELD_INTEGER ),

+	// DEFINE_FIELD( C_BaseFlex, m_blinktime, FIELD_FLOAT ),

+	// DEFINE_FIELD( C_BaseFlex, m_prevviewtarget, FIELD_VECTOR ),

+	// DEFINE_ARRAY( C_BaseFlex, m_prevflexWeight, FIELD_FLOAT, 64 ),

+	// DEFINE_FIELD( C_BaseFlex, m_prevblinktoggle, FIELD_INTEGER ),

+	// DEFINE_FIELD( C_BaseFlex, m_iBlink, FIELD_INTEGER ),

+	// DEFINE_FIELD( C_BaseFlex, m_iEyeUpdown, FIELD_INTEGER ),

+	// DEFINE_FIELD( C_BaseFlex, m_iEyeRightleft, FIELD_INTEGER ),

+	// DEFINE_FIELD( C_BaseFlex, m_FileList, CUtlVector < CFlexSceneFile * > ),

+*/

+

+END_PREDICTION_DATA()

+

+//-----------------------------------------------------------------------------

+// Purpose:

+//-----------------------------------------------------------------------------

+bool GetHWMExpressionFileName( const char *pFilename, char *pHWMFilename )

+{

+	// Are we even using hardware morph?

+	if ( !UseHWMorphVCDs() )

+		return false;

+

+	// Do we have a valid filename?

+	if ( !( pFilename && pFilename[0] ) )

+		return false;

+

+	// Check to see if we already have an player/hwm/* filename.

+	if ( ( V_strstr( pFilename, "player/hwm" ) != NULL ) || ( V_strstr( pFilename, "player\\hwm" ) != NULL ) )

+	{

+		V_strcpy( pHWMFilename, pFilename );

+		return true;

+	}

+

+	// Find the hardware morph scene name and pass that along as well.

+	char szExpression[MAX_PATH];

+	V_strcpy( szExpression, pFilename );

+

+	char szExpressionHWM[MAX_PATH];

+	szExpressionHWM[0] = '\0';

+

+	char *pszToken = strtok( szExpression, "/\\" );

+	while ( pszToken != NULL )

+	{

+		V_strcat( szExpressionHWM, pszToken, sizeof( szExpressionHWM ) );

+		if ( !V_stricmp( pszToken, "player" ) )

+		{

+			V_strcat( szExpressionHWM, "\\hwm", sizeof( szExpressionHWM ) );

+		}

+

+		pszToken = strtok( NULL, "/\\" );

+		if ( pszToken != NULL )

+		{

+			V_strcat( szExpressionHWM, "\\", sizeof( szExpressionHWM ) );

+		}

+	}

+

+	V_strcpy( pHWMFilename, szExpressionHWM );

+	return true;

+}

+

+C_BaseFlex::C_BaseFlex() : 

+	m_iv_viewtarget( "C_BaseFlex::m_iv_viewtarget" ), 

+	m_iv_flexWeight("C_BaseFlex:m_iv_flexWeight" ),

+#ifdef HL2_CLIENT_DLL

+	m_iv_vecLean("C_BaseFlex:m_iv_vecLean" ),

+	m_iv_vecShift("C_BaseFlex:m_iv_vecShift" ),

+#endif

+	m_LocalToGlobal( 0, 0, FlexSettingLessFunc )

+{

+#ifdef _DEBUG

+	((Vector&)m_viewtarget).Init();

+#endif

+

+	AddVar( &m_viewtarget, &m_iv_viewtarget, LATCH_ANIMATION_VAR | INTERPOLATE_LINEAR_ONLY );

+	AddVar( m_flexWeight, &m_iv_flexWeight, LATCH_ANIMATION_VAR );

+

+	// Fill in phoneme class lookup

+	SetupMappings( "phonemes" );

+

+	m_flFlexDelayedWeight = NULL;

+	m_cFlexDelayedWeight = 0;

+

+	/// Make sure size is correct

+	Assert( PHONEME_CLASS_STRONG + 1 == NUM_PHONEME_CLASSES );

+

+#ifdef HL2_CLIENT_DLL

+	// Get general lean vector

+	AddVar( &m_vecLean, &m_iv_vecLean, LATCH_ANIMATION_VAR );

+	AddVar( &m_vecShift, &m_iv_vecShift, LATCH_ANIMATION_VAR );

+#endif

+}

+

+C_BaseFlex::~C_BaseFlex()

+{

+	delete[] m_flFlexDelayedWeight;

+	m_SceneEvents.RemoveAll();

+	m_LocalToGlobal.RemoveAll();

+}

+

+

+void C_BaseFlex::Spawn()

+{

+	BaseClass::Spawn();

+

+	InitPhonemeMappings();

+}

+

+// TF Player overrides all of these with class specific files

+void C_BaseFlex::InitPhonemeMappings()

+{

+	SetupMappings( "phonemes" );

+}

+

+void C_BaseFlex::SetupMappings( char const *pchFileRoot )

+{

+	// Fill in phoneme class lookup

+	memset( m_PhonemeClasses, 0, sizeof( m_PhonemeClasses ) );

+

+	Emphasized_Phoneme *normal = &m_PhonemeClasses[ PHONEME_CLASS_NORMAL ];

+	Q_snprintf( normal->classname, sizeof( normal->classname ), "%s", pchFileRoot );

+	normal->required = true;

+

+	Emphasized_Phoneme *weak = &m_PhonemeClasses[ PHONEME_CLASS_WEAK ];

+	Q_snprintf( weak->classname, sizeof( weak->classname ), "%s_weak", pchFileRoot );

+	Emphasized_Phoneme *strong = &m_PhonemeClasses[ PHONEME_CLASS_STRONG ];

+	Q_snprintf( strong->classname, sizeof( strong->classname ), "%s_strong", pchFileRoot );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: initialize fast lookups when model changes

+//-----------------------------------------------------------------------------

+

+CStudioHdr *C_BaseFlex::OnNewModel()

+{

+	CStudioHdr *hdr = BaseClass::OnNewModel();

+	

+	// init to invalid setting

+	m_iBlink = -1;

+	m_iEyeUpdown = LocalFlexController_t(-1);

+	m_iEyeRightleft = LocalFlexController_t(-1);

+	m_bSearchedForEyeFlexes = false;

+	m_iMouthAttachment = 0;

+

+	delete[] m_flFlexDelayedWeight;

+	m_flFlexDelayedWeight = NULL;

+	m_cFlexDelayedWeight = 0;

+

+	if (hdr)

+	{

+		if (hdr->numflexdesc())

+		{

+			m_cFlexDelayedWeight = hdr->numflexdesc();

+			m_flFlexDelayedWeight = new float[ m_cFlexDelayedWeight ];

+			memset( m_flFlexDelayedWeight, 0, sizeof( float ) * m_cFlexDelayedWeight );

+		}

+

+		m_iv_flexWeight.SetMaxCount( hdr->numflexcontrollers() );

+

+		m_iMouthAttachment = LookupAttachment( "mouth" );

+

+		LinkToGlobalFlexControllers( hdr );

+	}

+

+	return hdr;

+}

+

+

+void C_BaseFlex::StandardBlendingRules( CStudioHdr *hdr, Vector pos[], Quaternion q[], float currentTime, int boneMask )

+{

+	BaseClass::StandardBlendingRules( hdr, pos, q, currentTime, boneMask );

+

+#ifdef HL2_CLIENT_DLL

+	// shift pelvis, rotate body

+	if (hdr->GetNumIKChains() != 0 && (m_vecShift.x != 0.0 || m_vecShift.y != 0.0))

+	{

+		//CIKContext auto_ik;

+		//auto_ik.Init( hdr, GetRenderAngles(), GetRenderOrigin(), currentTime, gpGlobals->framecount, boneMask );

+		//auto_ik.AddAllLocks( pos, q );

+

+		matrix3x4_t rootxform;

+		AngleMatrix( GetRenderAngles(), GetRenderOrigin(), rootxform );

+

+		Vector localShift;

+		VectorIRotate( m_vecShift, rootxform, localShift );

+		Vector localLean;

+		VectorIRotate( m_vecLean, rootxform, localLean );

+

+		Vector p0 = pos[0];

+		float length = VectorNormalize( p0 );

+

+		// shift the root bone, but keep the height off the origin the same

+		Vector shiftPos = pos[0] + localShift;

+		VectorNormalize( shiftPos );

+		Vector leanPos = pos[0] + localLean;

+		VectorNormalize( leanPos );

+		pos[0] = shiftPos * length;

+

+		// rotate the root bone based on how much it was "leaned"

+		Vector p1;

+		CrossProduct( p0, leanPos, p1 );

+		float sinAngle = VectorNormalize( p1 );

+		float cosAngle = DotProduct( p0, leanPos );

+		float angle = atan2( sinAngle, cosAngle ) * 180 / M_PI;

+		Quaternion q1;

+		angle = clamp( angle, -45, 45 );

+		AxisAngleQuaternion( p1, angle, q1 );

+		QuaternionMult( q1, q[0], q[0] );

+		QuaternionNormalize( q[0] );

+

+		// DevMsgRT( "   (%.2f) %.2f %.2f %.2f\n", angle, p1.x, p1.y, p1.z );

+		// auto_ik.SolveAllLocks( pos, q );

+	}

+#endif

+}

+

+

+

+//-----------------------------------------------------------------------------

+// Purpose: place "voice" sounds on mouth

+//-----------------------------------------------------------------------------

+

+bool C_BaseFlex::GetSoundSpatialization( SpatializationInfo_t& info )

+{

+	bool bret = BaseClass::GetSoundSpatialization( info );

+	// Default things it's audible, put it at a better spot?

+	if ( bret )

+	{

+		if ((info.info.nChannel == CHAN_VOICE || info.info.nChannel == CHAN_VOICE2) && m_iMouthAttachment > 0)

+		{

+			Vector origin;

+			QAngle angles;

+			

+			C_BaseAnimating::AutoAllowBoneAccess boneaccess( true, false );

+

+			if (GetAttachment( m_iMouthAttachment, origin, angles ))

+			{

+				if (info.pOrigin)

+				{

+					*info.pOrigin = origin;

+				}

+

+				if (info.pAngles)

+				{

+					*info.pAngles = angles;

+				}

+			}

+		}

+	}

+

+	return bret;

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: run the interpreted FAC's expressions, converting global flex_controller 

+//			values into FAC weights

+//-----------------------------------------------------------------------------

+void C_BaseFlex::RunFlexRules( CStudioHdr *hdr, float *dest )

+{

+	if ( !g_CV_FlexRules.GetInt() )

+		return;

+

+	if ( !hdr )

+		return;

+

+/*

+	// 0 means run them all

+	int nFlexRulesToRun = 0;

+

+	const char *pszExpression = flex_expression.GetString();

+	if ( pszExpression )

+	{

+		nFlexRulesToRun = atoi(pszExpression); // 0 will be returned if not a numeric string

+	}

+//*/

+

+	hdr->RunFlexRules( g_flexweight, dest );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+bool CFlexSceneFileManager::Init()

+{

+	// Trakcer 16692:  Preload these at startup to avoid hitch first time we try to load them during actual gameplay

+	FindSceneFile( NULL, "phonemes", true );

+	FindSceneFile( NULL, "phonemes_weak", true );

+	FindSceneFile(NULL,  "phonemes_strong", true );

+

+#if defined( HL2_CLIENT_DLL )

+	FindSceneFile( NULL, "random", true );

+	FindSceneFile( NULL, "randomAlert", true );

+#endif

+

+#if defined( TF_CLIENT_DLL )

+	// HACK TO ALL TF TO HAVE PER CLASS OVERRIDES

+	char const *pTFClasses[] = 

+	{

+		"scout",

+		"sniper",

+		"soldier",

+		"demo",

+		"medic",

+		"heavy",

+		"pyro",

+		"spy",

+		"engineer",

+	};

+

+	char fn[ MAX_PATH ];

+	for ( int i = 0; i < ARRAYSIZE( pTFClasses ); ++i )

+	{

+		Q_snprintf( fn, sizeof( fn ), "player/%s/phonemes/phonemes", pTFClasses[i] );

+		FindSceneFile( NULL, fn, true );

+		Q_snprintf( fn, sizeof( fn ), "player/%s/phonemes/phonemes_weak", pTFClasses[i] );

+		FindSceneFile( NULL, fn, true );

+		Q_snprintf( fn, sizeof( fn ), "player/%s/phonemes/phonemes_strong", pTFClasses[i] );

+		FindSceneFile( NULL, fn, true );

+

+		if ( !IsX360() )

+		{

+			Q_snprintf( fn, sizeof( fn ), "player/hwm/%s/phonemes/phonemes", pTFClasses[i] );

+			FindSceneFile( NULL, fn, true );

+			Q_snprintf( fn, sizeof( fn ), "player/hwm/%s/phonemes/phonemes_weak", pTFClasses[i] );

+			FindSceneFile( NULL, fn, true );

+			Q_snprintf( fn, sizeof( fn ), "player/hwm/%s/phonemes/phonemes_strong", pTFClasses[i] );

+			FindSceneFile( NULL, fn, true );

+		}

+

+		Q_snprintf( fn, sizeof( fn ), "player/%s/emotion/emotion", pTFClasses[i] );

+		FindSceneFile( NULL, fn, true );

+		if ( !IsX360() )

+		{

+			Q_snprintf( fn, sizeof( fn ), "player/hwm/%s/emotion/emotion", pTFClasses[i] );

+			FindSceneFile( NULL, fn, true );

+		}

+	}

+#endif

+

+	return true;

+}

+

+//-----------------------------------------------------------------------------

+// Tracker 14992:  We used to load 18K of .vfes for every C_BaseFlex who lipsynced, but now we only load those files once globally.

+// Note, we could wipe these between levels, but they don't ever load more than the weak/normal/strong phoneme classes that I can tell

+//  so I'll just leave them loaded forever for now

+//-----------------------------------------------------------------------------

+void CFlexSceneFileManager::Shutdown()

+{

+	DeleteSceneFiles();

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Sets up translations

+// Input  : *instance - 

+//			*pSettinghdr - 

+// Output : 	void

+//-----------------------------------------------------------------------------

+void CFlexSceneFileManager::EnsureTranslations( IHasLocalToGlobalFlexSettings *instance, const flexsettinghdr_t *pSettinghdr )

+{

+	// The only time instance is NULL is in Init() above, where we're just loading the .vfe files off of the hard disk.

+	if ( instance )

+	{

+		instance->EnsureTranslations( pSettinghdr );

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void *CFlexSceneFileManager::FindSceneFile( IHasLocalToGlobalFlexSettings *instance, const char *filename, bool allowBlockingIO )

+{

+	char szFilename[MAX_PATH];

+	Assert( V_strlen( filename ) < MAX_PATH );

+	V_strcpy( szFilename, filename );

+	

+#if defined( TF_CLIENT_DLL )	

+	char szHWMFilename[MAX_PATH];

+	if ( GetHWMExpressionFileName( szFilename, szHWMFilename ) )

+	{

+		V_strcpy( szFilename, szHWMFilename );

+	}

+#endif

+

+	Q_FixSlashes( szFilename );

+

+	// See if it's already loaded

+	int i;

+	for ( i = 0; i < m_FileList.Count(); i++ )

+	{

+		CFlexSceneFile *file = m_FileList[ i ];

+		if ( file && !Q_stricmp( file->filename, szFilename ) )

+		{

+			// Make sure translations (local to global flex controller) are set up for this instance

+			EnsureTranslations( instance, ( const flexsettinghdr_t * )file->buffer );

+			return file->buffer;

+		}

+	}

+	

+	if ( !allowBlockingIO )

+	{

+		return NULL;

+	}

+

+	// Load file into memory

+	void *buffer = NULL;

+	int len = filesystem->ReadFileEx( VarArgs( "expressions/%s.vfe", szFilename ), "GAME", &buffer );

+

+	if ( !len )

+		return NULL;

+

+	// Create scene entry

+	CFlexSceneFile *pfile = new CFlexSceneFile;

+	// Remember filename

+	Q_strncpy( pfile->filename, szFilename, sizeof( pfile->filename ) );

+	// Remember data pointer

+	pfile->buffer = buffer;

+	// Add to list

+	m_FileList.AddToTail( pfile );

+

+	// Swap the entire file

+	if ( IsX360() )

+	{

+		CByteswap swap;

+		swap.ActivateByteSwapping( true );

+		byte *pData = (byte*)buffer;

+		flexsettinghdr_t *pHdr = (flexsettinghdr_t*)pData;

+		swap.SwapFieldsToTargetEndian( pHdr );

+

+		// Flex Settings

+		flexsetting_t *pFlexSetting = (flexsetting_t*)((byte*)pHdr + pHdr->flexsettingindex);

+		for ( int i = 0; i < pHdr->numflexsettings; ++i, ++pFlexSetting )

+		{

+			swap.SwapFieldsToTargetEndian( pFlexSetting );

+			

+			flexweight_t *pWeight = (flexweight_t*)(((byte*)pFlexSetting) + pFlexSetting->settingindex );

+			for ( int j = 0; j < pFlexSetting->numsettings; ++j, ++pWeight )

+			{

+				swap.SwapFieldsToTargetEndian( pWeight );

+			}

+		}

+

+		// indexes

+		pData = (byte*)pHdr + pHdr->indexindex;

+		swap.SwapBufferToTargetEndian( (int*)pData, (int*)pData, pHdr->numindexes );

+

+		// keymappings

+		pData  = (byte*)pHdr + pHdr->keymappingindex;

+		swap.SwapBufferToTargetEndian( (int*)pData, (int*)pData, pHdr->numkeys );

+

+		// keyname indices

+		pData = (byte*)pHdr + pHdr->keynameindex;

+		swap.SwapBufferToTargetEndian( (int*)pData, (int*)pData, pHdr->numkeys );

+	}

+

+	// Fill in translation table

+	EnsureTranslations( instance, ( const flexsettinghdr_t * )pfile->buffer );

+

+	// Return data

+	return pfile->buffer;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void CFlexSceneFileManager::DeleteSceneFiles()

+{

+	while ( m_FileList.Count() > 0 )

+	{

+		CFlexSceneFile *file = m_FileList[ 0 ];

+		m_FileList.Remove( 0 );

+		free( file->buffer );

+		delete file;

+	}

+}

+

+CFlexSceneFileManager g_FlexSceneFileManager;

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *filename - 

+//-----------------------------------------------------------------------------

+void *C_BaseFlex::FindSceneFile( const char *filename )

+{

+	return g_FlexSceneFileManager.FindSceneFile( this, filename, false );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: make sure the eyes are within 30 degrees of forward

+//-----------------------------------------------------------------------------

+Vector C_BaseFlex::SetViewTarget( CStudioHdr *pStudioHdr )

+{

+  	if ( !pStudioHdr )

+  		return Vector( 0, 0, 0);

+

+	// aim the eyes

+	Vector tmp = m_viewtarget;

+

+	if ( !m_bSearchedForEyeFlexes )

+	{

+		m_bSearchedForEyeFlexes = true;

+

+		m_iEyeUpdown = FindFlexController( "eyes_updown" );

+		m_iEyeRightleft = FindFlexController( "eyes_rightleft" );

+

+		if ( m_iEyeUpdown != -1 )

+		{

+			pStudioHdr->pFlexcontroller( m_iEyeUpdown )->localToGlobal = AddGlobalFlexController( "eyes_updown" );

+		}

+		if ( m_iEyeRightleft != -1 )

+		{

+			pStudioHdr->pFlexcontroller( m_iEyeRightleft )->localToGlobal = AddGlobalFlexController( "eyes_rightleft" );

+		}

+	}

+

+	if (m_iEyeAttachment > 0)

+	{

+		matrix3x4_t attToWorld;

+		if (!GetAttachment( m_iEyeAttachment, attToWorld ))

+		{

+			return Vector( 0, 0, 0);

+		}

+

+		Vector local;

+		VectorITransform( tmp, attToWorld, local );

+		

+		// FIXME: clamp distance to something based on eyeball distance

+		if (local.x < 6)

+		{

+			local.x = 6;

+		}

+		float flDist = local.Length();

+		VectorNormalize( local );

+

+		// calculate animated eye deflection

+		Vector eyeDeflect;

+		QAngle eyeAng( 0, 0, 0 );

+		if ( m_iEyeUpdown != -1 )

+		{

+			mstudioflexcontroller_t *pflex = pStudioHdr->pFlexcontroller( m_iEyeUpdown );

+			eyeAng.x = g_flexweight[ pflex->localToGlobal ];

+		}

+		

+		if ( m_iEyeRightleft != -1 )

+		{

+			mstudioflexcontroller_t *pflex = pStudioHdr->pFlexcontroller( m_iEyeRightleft );

+			eyeAng.y = g_flexweight[ pflex->localToGlobal ];

+		}

+

+		// debugoverlay->AddTextOverlay( GetAbsOrigin() + Vector( 0, 0, 64 ), 0, 0, "%5.3f %5.3f", eyeAng.x, eyeAng.y );

+

+		AngleVectors( eyeAng, &eyeDeflect );

+		eyeDeflect.x = 0;

+

+		// reduce deflection the more the eye is off center

+		// FIXME: this angles make no damn sense

+		eyeDeflect = eyeDeflect * (local.x * local.x);

+		local = local + eyeDeflect;

+		VectorNormalize( local );

+

+		// check to see if the eye is aiming outside the max eye deflection

+		float flMaxEyeDeflection = pStudioHdr->MaxEyeDeflection();

+		if ( local.x < flMaxEyeDeflection )

+		{

+			// if so, clamp it to 30 degrees offset

+			// debugoverlay->AddTextOverlay( GetAbsOrigin() + Vector( 0, 0, 64 ), 1, 0, "%5.3f %5.3f %5.3f", local.x, local.y, local.z );

+			local.x = 0;

+			float d = local.LengthSqr();

+			if ( d > 0.0f )

+			{

+				d = sqrtf( ( 1.0f - flMaxEyeDeflection * flMaxEyeDeflection ) / ( local.y*local.y + local.z*local.z ) );

+				local.x = flMaxEyeDeflection;

+				local.y = local.y * d;

+				local.z = local.z * d;

+			}

+			else

+			{

+				local.x = 1.0;

+			}

+		}

+		local = local * flDist;

+		VectorTransform( local, attToWorld, tmp );

+	}

+

+	modelrender->SetViewTarget( GetModelPtr(), GetBody(), tmp );

+

+	/*

+	debugoverlay->AddTextOverlay( GetAbsOrigin() + Vector( 0, 0, 64 ), 0, 0, "%.2f %.2f %.2f  : %.2f %.2f %.2f", 

+		m_viewtarget.x, m_viewtarget.y, m_viewtarget.z, 

+		m_prevviewtarget.x, m_prevviewtarget.y, m_prevviewtarget.z );

+	*/

+

+	return tmp;

+}

+

+#define STRONG_CROSSFADE_START		0.60f

+#define WEAK_CROSSFADE_START		0.40f

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Here's the formula

+// 0.5 is neutral 100 % of the default setting

+// Crossfade starts at STRONG_CROSSFADE_START and is full at STRONG_CROSSFADE_END

+// If there isn't a strong then the intensity of the underlying phoneme is fixed at 2 x STRONG_CROSSFADE_START

+//  so we don't get huge numbers

+// Input  : *classes - 

+//			emphasis_intensity - 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::ComputeBlendedSetting( Emphasized_Phoneme *classes, float emphasis_intensity )

+{

+	// See which blends are available for the current phoneme

+	bool has_weak	= classes[ PHONEME_CLASS_WEAK ].valid;

+	bool has_strong = classes[ PHONEME_CLASS_STRONG ].valid;

+

+	// Better have phonemes in general

+	Assert( classes[ PHONEME_CLASS_NORMAL ].valid );

+

+	if ( emphasis_intensity > STRONG_CROSSFADE_START )

+	{

+		if ( has_strong )

+		{

+			// Blend in some of strong

+			float dist_remaining = 1.0f - emphasis_intensity;

+			float frac = dist_remaining / ( 1.0f - STRONG_CROSSFADE_START );

+

+			classes[ PHONEME_CLASS_NORMAL ].amount = (frac) * 2.0f * STRONG_CROSSFADE_START;

+			classes[ PHONEME_CLASS_STRONG ].amount = 1.0f - frac; 

+		}

+		else

+		{

+			emphasis_intensity = MIN( emphasis_intensity, STRONG_CROSSFADE_START );

+			classes[ PHONEME_CLASS_NORMAL ].amount = 2.0f * emphasis_intensity;

+		}

+	}

+	else if ( emphasis_intensity < WEAK_CROSSFADE_START )

+	{

+		if ( has_weak )

+		{

+			// Blend in some weak

+			float dist_remaining = WEAK_CROSSFADE_START - emphasis_intensity;

+			float frac = dist_remaining / ( WEAK_CROSSFADE_START );

+

+			classes[ PHONEME_CLASS_NORMAL ].amount = (1.0f - frac) * 2.0f * WEAK_CROSSFADE_START;

+			classes[ PHONEME_CLASS_WEAK ].amount = frac; 

+		}

+		else

+		{

+			emphasis_intensity = MAX( emphasis_intensity, WEAK_CROSSFADE_START );

+			classes[ PHONEME_CLASS_NORMAL ].amount = 2.0f * emphasis_intensity;

+		}

+	}

+	else

+	{

+		// Assume 0.5 (neutral) becomes a scaling of 1.0f

+		classes[ PHONEME_CLASS_NORMAL ].amount = 2.0f * emphasis_intensity;

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *classes - 

+//			phoneme - 

+//			scale - 

+//			newexpression - 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::AddViseme( Emphasized_Phoneme *classes, float emphasis_intensity, int phoneme, float scale, bool newexpression )

+{

+	int type;

+

+	// Setup weights for any emphasis blends

+	bool skip = SetupEmphasisBlend( classes, phoneme );

+	// Uh-oh, missing or unknown phoneme???

+	if ( skip )

+	{

+		return;

+	}

+		

+	// Compute blend weights

+	ComputeBlendedSetting( classes, emphasis_intensity );

+

+	for ( type = 0; type < NUM_PHONEME_CLASSES; type++ )

+	{

+		Emphasized_Phoneme *info = &classes[ type ];

+		if ( !info->valid || info->amount == 0.0f )

+			continue;

+

+		const flexsettinghdr_t *actual_flexsetting_header = info->base;

+		const flexsetting_t *pSetting = actual_flexsetting_header->pIndexedSetting( phoneme );

+		if (!pSetting)

+		{

+			continue;

+		}

+

+		flexweight_t *pWeights = NULL;

+

+		int truecount = pSetting->psetting( (byte *)actual_flexsetting_header, 0, &pWeights );

+		if ( pWeights )

+		{

+			for ( int i = 0; i < truecount; i++)

+			{

+				// Translate to global controller number

+				int j = FlexControllerLocalToGlobal( actual_flexsetting_header, pWeights->key );

+				// Add scaled weighting in

+				g_flexweight[j] += info->amount * scale * pWeights->weight;

+				// Go to next setting

+				pWeights++;

+			}

+		}

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: A lot of the one time setup and also resets amount to 0.0f default

+//  for strong/weak/normal tracks

+// Returning true == skip this phoneme

+// Input  : *classes - 

+// Output : Returns true on success, false on failure.

+//-----------------------------------------------------------------------------

+bool C_BaseFlex::SetupEmphasisBlend( Emphasized_Phoneme *classes, int phoneme )

+{

+	int i;

+

+	bool skip = false;

+

+	for ( i = 0; i < NUM_PHONEME_CLASSES; i++ )

+	{

+		Emphasized_Phoneme *info = &classes[ i ];

+

+		// Assume it's bogus

+		info->valid = false;

+		info->amount = 0.0f;

+

+		// One time setup

+		if ( !info->basechecked )

+		{

+			info->basechecked = true;

+			info->base = (flexsettinghdr_t *)FindSceneFile( info->classname );

+		}

+		info->exp = NULL;

+		if ( info->base )

+		{

+			Assert( info->base->id == ('V' << 16) + ('F' << 8) + ('E') );

+			info->exp = info->base->pIndexedSetting( phoneme );

+		}

+

+		if ( info->required && ( !info->base || !info->exp ) )

+		{

+			skip = true;

+			break;

+		}

+

+		if ( info->exp )

+		{

+			info->valid = true;

+		}

+	}

+	

+	return skip;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *classes - 

+//			*sentence - 

+//			t - 

+//			dt - 

+//			juststarted - 

+//-----------------------------------------------------------------------------

+ConVar g_CV_PhonemeSnap("phonemesnap", "2", 0, "Lod at level at which visemes stops always considering two phonemes, regardless of duration." );

+void C_BaseFlex::AddVisemesForSentence( Emphasized_Phoneme *classes, float emphasis_intensity, CSentence *sentence, float t, float dt, bool juststarted )

+{

+	CStudioHdr *hdr = GetModelPtr();

+	if ( !hdr )

+	{

+		return;

+	}

+

+	int pcount = sentence->GetRuntimePhonemeCount();

+	for ( int k = 0; k < pcount; k++ )

+	{

+		const CBasePhonemeTag *phoneme = sentence->GetRuntimePhoneme( k );

+

+		if (t > phoneme->GetStartTime() && t < phoneme->GetEndTime())

+		{

+			bool bCrossfade = true;

+			if ((hdr->flags() & STUDIOHDR_FLAGS_FORCE_PHONEME_CROSSFADE) == 0)

+			{

+				if (m_iAccumulatedBoneMask & BONE_USED_BY_VERTEX_LOD0)

+				{

+					bCrossfade = (g_CV_PhonemeSnap.GetInt() > 0);

+				}

+				else if (m_iAccumulatedBoneMask & BONE_USED_BY_VERTEX_LOD1)

+				{

+					bCrossfade = (g_CV_PhonemeSnap.GetInt() > 1);

+				}

+				else if (m_iAccumulatedBoneMask & BONE_USED_BY_VERTEX_LOD2)

+				{

+					bCrossfade = (g_CV_PhonemeSnap.GetInt() > 2);

+				}

+				else if (m_iAccumulatedBoneMask & BONE_USED_BY_VERTEX_LOD3)

+				{

+					bCrossfade = (g_CV_PhonemeSnap.GetInt() > 3);

+				}

+				else

+				{

+					bCrossfade = false;

+				}

+			}

+

+			if (bCrossfade)

+			{

+				if (k < pcount-1)

+				{

+					const CBasePhonemeTag *next = sentence->GetRuntimePhoneme( k + 1 );

+					// if I have a neighbor

+					if ( next )

+					{

+						//  and they're touching

+						if (next->GetStartTime() == phoneme->GetEndTime() )

+						{

+							// no gap, so increase the blend length to the end of the next phoneme, as long as it's not longer than the current phoneme

+							dt = MAX( dt, MIN( next->GetEndTime() - t, phoneme->GetEndTime() - phoneme->GetStartTime() ) );

+						}

+						else

+						{

+							// dead space, so increase the blend length to the start of the next phoneme, as long as it's not longer than the current phoneme

+							dt = MAX( dt, MIN( next->GetStartTime() - t, phoneme->GetEndTime() - phoneme->GetStartTime() ) );

+						}

+					}

+					else

+					{

+						// last phoneme in list, increase the blend length to the length of the current phoneme

+						dt = MAX( dt, phoneme->GetEndTime() - phoneme->GetStartTime() );

+					}

+				}

+			}

+		}

+

+		float t1 = ( phoneme->GetStartTime() - t) / dt;

+		float t2 = ( phoneme->GetEndTime() - t) / dt;

+

+		if (t1 < 1.0 && t2 > 0)

+		{

+			float scale;

+

+			// clamp

+			if (t2 > 1)

+				t2 = 1;

+			if (t1 < 0)

+				t1 = 0;

+

+			// FIXME: simple box filter.  Should use something fancier

+			scale = (t2 - t1);

+

+			AddViseme( classes, emphasis_intensity, phoneme->GetPhonemeCode(), scale, juststarted );

+		}

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *classes - 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::ProcessVisemes( Emphasized_Phoneme *classes )

+{

+	// Any sounds being played?

+	if ( !MouthInfo().IsActive() )

+		return;

+

+	// Multiple phoneme tracks can overlap, look across all such tracks.

+	for ( int source = 0 ; source < MouthInfo().GetNumVoiceSources(); source++ )

+	{

+		CVoiceData *vd = MouthInfo().GetVoiceSource( source );

+		if ( !vd || vd->ShouldIgnorePhonemes() )

+			continue;

+

+		CSentence *sentence = engine->GetSentence( vd->GetSource() );

+		if ( !sentence )

+			continue;

+

+		float	sentence_length = engine->GetSentenceLength( vd->GetSource() );

+		float	timesincestart = vd->GetElapsedTime();

+

+		// This sound should be done...why hasn't it been removed yet???

+		if ( timesincestart >= ( sentence_length + 2.0f ) )

+			continue;

+

+		// Adjust actual time

+		float t = timesincestart - g_CV_PhonemeDelay.GetFloat();

+

+		// Get box filter duration

+		float dt = g_CV_PhonemeFilter.GetFloat();

+

+		// Streaming sounds get an additional delay...

+		/*

+		// Tracker 20534:  Probably not needed any more with the async sound stuff that

+		//  we now have (we don't have a disk i/o hitch on startup which might have been

+		//  messing up the startup timing a bit )

+		bool streaming = engine->IsStreaming( vd->m_pAudioSource );

+		if ( streaming )

+		{

+			t -= g_CV_PhonemeDelayStreaming.GetFloat();

+		}

+		*/

+

+		// Assume sound has been playing for a while...

+		bool juststarted = false;

+

+		// Get intensity setting for this time (from spline)

+		float emphasis_intensity = sentence->GetIntensity( t, sentence_length );

+

+		// Blend and add visemes together

+		AddVisemesForSentence( classes, emphasis_intensity, sentence, t, dt, juststarted );

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: fill keyvalues message with flex state

+// Input  :

+//-----------------------------------------------------------------------------

+void C_BaseFlex::GetToolRecordingState( KeyValues *msg )

+{

+	if ( !ToolsEnabled() )

+		return;

+

+	VPROF_BUDGET( "C_BaseFlex::GetToolRecordingState", VPROF_BUDGETGROUP_TOOLS );

+

+	BaseClass::GetToolRecordingState( msg );

+

+	CStudioHdr *hdr = GetModelPtr();

+	if ( !hdr )

+		return;

+

+	memset( g_flexweight, 0, sizeof( g_flexweight ) );

+

+	if ( hdr->numflexcontrollers() == 0 )

+		return;

+

+	LocalFlexController_t i;

+

+	ProcessSceneEvents( true );

+

+	// FIXME: shouldn't this happen at runtime?

+	// initialize the models local to global flex controller mappings

+	if (hdr->pFlexcontroller( LocalFlexController_t(0) )->localToGlobal == -1)

+	{

+		for (i = LocalFlexController_t(0); i < hdr->numflexcontrollers(); i++)

+		{

+			int j = AddGlobalFlexController( hdr->pFlexcontroller( i )->pszName() );

+			hdr->pFlexcontroller( i )->localToGlobal = j;

+		}

+	}

+

+	// blend weights from server

+	for (i = LocalFlexController_t(0); i < hdr->numflexcontrollers(); i++)

+	{

+		mstudioflexcontroller_t *pflex = hdr->pFlexcontroller( i );

+

+		g_flexweight[pflex->localToGlobal] = m_flexWeight[i];

+		// rescale

+		g_flexweight[pflex->localToGlobal] = g_flexweight[pflex->localToGlobal] * (pflex->max - pflex->min) + pflex->min;

+	}

+

+	ProcessSceneEvents( false );

+

+	// check for blinking

+	if (m_blinktoggle != m_prevblinktoggle)

+	{

+		m_prevblinktoggle = m_blinktoggle;

+		m_blinktime = gpGlobals->curtime + g_CV_BlinkDuration.GetFloat();

+	}

+

+	if (m_iBlink == -1)

+		m_iBlink = AddGlobalFlexController( "blink" );

+	g_flexweight[m_iBlink] = 0;

+

+	// FIXME: this needs a better algorithm

+	// blink the eyes

+	float t = (m_blinktime - gpGlobals->curtime) * M_PI * 0.5 * (1.0/g_CV_BlinkDuration.GetFloat());

+	if (t > 0)

+	{

+		// do eyeblink falloff curve

+		t = cos(t);

+		if (t > 0)

+		{

+			g_flexweight[m_iBlink] = sqrtf( t ) * 2;

+			if (g_flexweight[m_iBlink] > 1)

+				g_flexweight[m_iBlink] = 2.0 - g_flexweight[m_iBlink];

+		}

+	}

+

+	// Drive the mouth from .wav file playback...

+	ProcessVisemes( m_PhonemeClasses );

+

+	// Necessary???

+	SetViewTarget( hdr );

+

+	Vector viewtarget = m_viewtarget; // Use the unfiltered value

+

+	// HACK HACK: Unmap eyes right/left amounts

+	if (m_iEyeUpdown != -1 && m_iEyeRightleft != -1)

+	{

+		mstudioflexcontroller_t *flexupdown = hdr->pFlexcontroller( m_iEyeUpdown );

+		mstudioflexcontroller_t *flexrightleft = hdr->pFlexcontroller( m_iEyeRightleft );

+

+		if ( flexupdown->localToGlobal != -1 && flexrightleft->localToGlobal != -1 )

+		{

+			float updown = g_flexweight[ flexupdown->localToGlobal ];

+			float rightleft = g_flexweight[ flexrightleft->localToGlobal ];

+

+			if ( flexupdown->min != flexupdown->max )

+			{

+				updown = RemapVal( updown, flexupdown->min, flexupdown->max, 0.0f, 1.0f );

+			}

+			if ( flexrightleft->min != flexrightleft->max )

+			{

+				rightleft = RemapVal( rightleft, flexrightleft->min, flexrightleft->max, 0.0f, 1.0f );

+			}

+	

+			g_flexweight[ flexupdown->localToGlobal ] = updown;

+			g_flexweight[ flexrightleft->localToGlobal ] = rightleft;

+		}

+	}

+

+	// Convert back to normalized weights

+	for (i = LocalFlexController_t(0); i < hdr->numflexcontrollers(); i++)

+	{

+		mstudioflexcontroller_t *pflex = hdr->pFlexcontroller( i );

+

+		// rescale

+		if ( pflex->max != pflex->min )

+		{

+			g_flexweight[pflex->localToGlobal] = ( g_flexweight[pflex->localToGlobal] - pflex->min ) / ( pflex->max - pflex->min );

+		}

+	}

+

+	static BaseFlexRecordingState_t state;

+	state.m_nFlexCount = MAXSTUDIOFLEXCTRL;

+	state.m_pDestWeight = g_flexweight;

+	state.m_vecViewTarget = viewtarget;

+	msg->SetPtr( "baseflex", &state );

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::OnThreadedDrawSetup()

+{

+	if (m_iEyeAttachment < 0)

+		return;

+

+	CStudioHdr *hdr = GetModelPtr();

+	if ( !hdr )

+	{

+		return;

+	}

+	CalcAttachments();

+}

+

+

+//-----------------------------------------------------------------------------

+// Should we use delayed flex weights?

+//-----------------------------------------------------------------------------

+bool C_BaseFlex::UsesFlexDelayedWeights()

+{

+	return ( m_flFlexDelayedWeight && g_CV_FlexSmooth.GetBool() );

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::LinkToGlobalFlexControllers( CStudioHdr *hdr )

+{

+	if ( hdr && hdr->pFlexcontroller( LocalFlexController_t(0) )->localToGlobal == -1 )

+	{

+		for (LocalFlexController_t i = LocalFlexController_t(0); i < hdr->numflexcontrollers(); i++)

+		{

+			int j = AddGlobalFlexController( hdr->pFlexcontroller( i )->pszName() );

+			hdr->pFlexcontroller( i )->localToGlobal = j;

+		}

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Rendering callback to allow the client to set up all the model specific flex weights

+//-----------------------------------------------------------------------------

+void C_BaseFlex::SetupWeights( const matrix3x4_t *pBoneToWorld, int nFlexWeightCount, float *pFlexWeights, float *pFlexDelayedWeights )

+{

+	// hack in an initialization

+	LinkToGlobalFlexControllers( GetModelPtr() );

+	m_iBlink = AddGlobalFlexController( "UH" );

+

+	if ( SetupGlobalWeights( pBoneToWorld, nFlexWeightCount, pFlexWeights, pFlexDelayedWeights ) )

+	{

+		SetupLocalWeights( pBoneToWorld, nFlexWeightCount, pFlexWeights, pFlexDelayedWeights );

+	}

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: process the entities networked state, vcd playback, wav file visemes, and blinks into a global shared flex controller array

+//-----------------------------------------------------------------------------

+bool C_BaseFlex::SetupGlobalWeights( const matrix3x4_t *pBoneToWorld, int nFlexWeightCount, float *pFlexWeights, float *pFlexDelayedWeights )

+{

+	CStudioHdr *hdr = GetModelPtr();

+	if ( !hdr )

+		return false;

+

+	memset( g_flexweight, 0, sizeof(g_flexweight) );

+

+	// FIXME: this should assert then, it's too complex a class for the model

+	if ( hdr->numflexcontrollers() == 0 )

+	{

+		int nSizeInBytes = nFlexWeightCount * sizeof( float );

+		memset( pFlexWeights, 0, nSizeInBytes );

+		if ( pFlexDelayedWeights )

+		{

+			memset( pFlexDelayedWeights, 0, nSizeInBytes );

+		}

+		return false;

+	}

+

+	LocalFlexController_t i;

+

+	ProcessSceneEvents( true );

+

+	Assert( hdr->pFlexcontroller( LocalFlexController_t(0) )->localToGlobal != -1 );

+

+	// get the networked flexweights and convert them from 0..1 to real dynamic range

+	for (i = LocalFlexController_t(0); i < hdr->numflexcontrollers(); i++)

+	{

+		mstudioflexcontroller_t *pflex = hdr->pFlexcontroller( i );

+

+		g_flexweight[pflex->localToGlobal] = m_flexWeight[i];

+		// rescale

+		g_flexweight[pflex->localToGlobal] = g_flexweight[pflex->localToGlobal] * (pflex->max - pflex->min) + pflex->min;

+	}

+

+	ProcessSceneEvents( false );

+

+	// check for blinking

+	if (m_blinktoggle != m_prevblinktoggle)

+	{

+		m_prevblinktoggle = m_blinktoggle;

+		m_blinktime = gpGlobals->curtime + g_CV_BlinkDuration.GetFloat();

+	}

+

+	if (m_iBlink == -1)

+	{

+		m_iBlink = AddGlobalFlexController( "blink" );

+	}

+

+	// FIXME: this needs a better algorithm

+	// blink the eyes

+	float flBlinkDuration = g_CV_BlinkDuration.GetFloat();

+	float flOOBlinkDuration = ( flBlinkDuration > 0 ) ? 1.0f / flBlinkDuration : 0.0f;

+	float t = ( m_blinktime - gpGlobals->curtime ) * M_PI * 0.5 * flOOBlinkDuration;

+	if (t > 0)

+	{

+		// do eyeblink falloff curve

+		t = cos(t);

+		if (t > 0.0f && t < 1.0f)

+		{

+			t = sqrtf( t ) * 2.0f;

+			if (t > 1.0f)

+				t = 2.0f - t;

+			t = clamp( t, 0.0f, 1.0f );

+			// add it to whatever the blink track is doing

+			g_flexweight[m_iBlink] = clamp( g_flexweight[m_iBlink] + t, 0.0f, 1.0f );

+		}

+	}

+

+	// Drive the mouth from .wav file playback...

+	ProcessVisemes( m_PhonemeClasses );

+

+	return true;

+}

+

+void C_BaseFlex::RunFlexDelay( int nFlexWeightCount, float *pFlexWeights, float *pFlexDelayedWeights, float &flFlexDelayTime )

+{

+	// process the delayed version of the flexweights

+	if ( flFlexDelayTime > 0.0f && flFlexDelayTime < gpGlobals->curtime )

+	{

+		float d = clamp( gpGlobals->curtime - flFlexDelayTime, 0.0, gpGlobals->frametime );

+		d = ExponentialDecay( 0.8, 0.033, d );

+

+		for ( int i = 0; i < nFlexWeightCount; i++)

+		{

+			pFlexDelayedWeights[i] = pFlexDelayedWeights[i] * d + pFlexWeights[i] * (1.0f - d);

+		}

+	}

+	flFlexDelayTime = gpGlobals->curtime;

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: convert the global flex controllers into model specific flex weights

+//-----------------------------------------------------------------------------

+void C_BaseFlex::SetupLocalWeights( const matrix3x4_t *pBoneToWorld, int nFlexWeightCount, float *pFlexWeights, float *pFlexDelayedWeights )

+{

+	CStudioHdr *hdr = GetModelPtr();

+	if ( !hdr )

+		return;

+

+	// BUGBUG: We have a bug with SetCustomModel that causes a disagreement between the studio header here and the one used in l_studio.cpp CModelRender::DrawModelExecute

+	// So when we hit that case, let's not do any work because otherwise we'd crash since the array sizes (m_flFlexDelayedWeight vs pFlexWeights) don't match.

+	// Note that this check is duplicated in CEconEntity::SetupWeights.

+	AssertMsg( nFlexWeightCount == m_cFlexDelayedWeight, "Disagreement between the number of flex weights. Do the studio headers match?" );

+	if ( nFlexWeightCount != m_cFlexDelayedWeight )

+	{

+		return;

+	}

+

+	// convert the flex controllers into actual flex values

+	RunFlexRules( hdr, pFlexWeights );

+

+	// aim the eyes

+	SetViewTarget( hdr );

+

+	AssertOnce( hdr->pFlexcontroller( LocalFlexController_t(0) )->localToGlobal != -1 );

+

+	if ( pFlexDelayedWeights )

+	{

+		RunFlexDelay( nFlexWeightCount, pFlexWeights, m_flFlexDelayedWeight, m_flFlexDelayTime );

+		memcpy( pFlexDelayedWeights, m_flFlexDelayedWeight, sizeof( float ) * nFlexWeightCount );

+	}

+

+	/*

+	LocalFlexController_t i;

+

+	for (i = 0; i < hdr->numflexdesc; i++)

+	{

+		debugoverlay->AddTextOverlay( GetAbsOrigin() + Vector( 0, 0, 64 ), i-hdr->numflexcontrollers, 0, "%2d:%s : %3.2f", i, hdr->pFlexdesc( i )->pszFACS(), pFlexWeights[i] );

+	}

+	*/

+

+	/*

+	for (i = 0; i < g_numflexcontrollers; i++)

+	{

+		int j = hdr->pFlexcontroller( i )->link;

+		debugoverlay->AddTextOverlay( GetAbsOrigin() + Vector( 0, 0, 64 ), -i, 0, "%s %3.2f", g_flexcontroller[i], g_flexweight[j] );

+	}

+	*/

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: Unified set of flex controller entries that all systems can talk to

+//-----------------------------------------------------------------------------

+

+int C_BaseFlex::g_numflexcontrollers;

+char * C_BaseFlex::g_flexcontroller[MAXSTUDIOFLEXCTRL*4];

+float C_BaseFlex::g_flexweight[MAXSTUDIOFLEXDESC];

+

+int C_BaseFlex::AddGlobalFlexController( const char *szName )

+{

+	int i;

+	for (i = 0; i < g_numflexcontrollers; i++)

+	{

+		if (Q_stricmp( g_flexcontroller[i], szName ) == 0)

+		{

+			return i;

+		}

+	}

+

+	if ( g_numflexcontrollers < MAXSTUDIOFLEXCTRL * 4 )

+	{

+		g_flexcontroller[g_numflexcontrollers++] = strdup( szName );

+	}

+	else

+	{

+		// FIXME: missing runtime error condition

+	}

+	return i;

+}

+

+char const *C_BaseFlex::GetGlobalFlexControllerName( int idx )

+{

+	if ( idx < 0 || idx >= g_numflexcontrollers )

+	{

+		return "";

+	}

+

+	return g_flexcontroller[ idx ];

+}

+

+const flexsetting_t *C_BaseFlex::FindNamedSetting( const flexsettinghdr_t *pSettinghdr, const char *expr )

+{

+	int i;

+	const flexsetting_t *pSetting = NULL;

+

+	for ( i = 0; i < pSettinghdr->numflexsettings; i++ )

+	{

+		pSetting = pSettinghdr->pSetting( i );

+		if ( !pSetting )

+			continue;

+

+		const char *name = pSetting->pszName();

+

+		if ( !stricmp( name, expr ) )

+			break;

+	}

+

+	if ( i>=pSettinghdr->numflexsettings )

+	{

+		return NULL;

+	}

+

+	return pSetting;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::StartChoreoScene( CChoreoScene *scene )

+{

+	if ( m_ActiveChoreoScenes.Find( scene ) != m_ActiveChoreoScenes.InvalidIndex() )

+	{

+		return;

+	}

+

+	m_ActiveChoreoScenes.AddToTail( scene );

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::RemoveChoreoScene( CChoreoScene *scene )

+{

+	// Assert( m_ActiveChoreoScenes.Find( scene ) != m_ActiveChoreoScenes.InvalidIndex() );

+

+	m_ActiveChoreoScenes.FindAndRemove( scene );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Remove all active SceneEvents

+//-----------------------------------------------------------------------------

+void C_BaseFlex::ClearSceneEvents( CChoreoScene *scene, bool canceled )

+{

+	if ( !scene )

+	{

+		m_SceneEvents.RemoveAll();

+		return;

+	}

+

+	for ( int i = m_SceneEvents.Count() - 1; i >= 0; i-- )

+	{

+		CSceneEventInfo *info = &m_SceneEvents[ i ];

+

+		Assert( info );

+		Assert( info->m_pScene );

+		Assert( info->m_pEvent );

+

+		if ( info->m_pScene != scene )

+			continue;

+

+		if ( !ClearSceneEvent( info, false, canceled ))

+		{

+			// unknown expression to clear!!

+			Assert( 0 );

+		}

+

+		// Free this slot

+		info->m_pEvent		= NULL;

+		info->m_pScene		= NULL;

+		info->m_bStarted	= false;

+

+		m_SceneEvents.Remove( i );

+	}

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: Stop specifics of expression

+//-----------------------------------------------------------------------------

+

+bool C_BaseFlex::ClearSceneEvent( CSceneEventInfo *info, bool fastKill, bool canceled )

+{

+	Assert( info );

+	Assert( info->m_pScene );

+	Assert( info->m_pEvent );

+	return true;

+}

+

+

+//-----------------------------------------------------------------------------

+// Purpose: Add string indexed scene/expression/duration to list of active SceneEvents

+// Input  : scenefile - 

+//			expression - 

+//			duration - 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::AddSceneEvent( CChoreoScene *scene, CChoreoEvent *event, CBaseEntity *pTarget, bool bClientSide )

+{

+	if ( !scene || !event )

+	{

+		Msg( "C_BaseFlex::AddSceneEvent:  scene or event was NULL!!!\n" );

+		return;

+	}

+

+	CChoreoActor *actor = event->GetActor();

+	if ( !actor )

+	{

+		Msg( "C_BaseFlex::AddSceneEvent:  event->GetActor() was NULL!!!\n" );

+		return;

+	}

+

+

+	CSceneEventInfo info;

+

+	memset( (void *)&info, 0, sizeof( info ) );

+

+	info.m_pEvent		= event;

+	info.m_pScene		= scene;

+	info.m_hTarget		= pTarget;

+	info.m_bStarted		= false;

+	info.m_bClientSide	= bClientSide;

+

+	if (StartSceneEvent( &info, scene, event, actor, pTarget ))

+	{

+		m_SceneEvents.AddToTail( info );

+	}

+	else

+	{

+		scene->SceneMsg( "C_BaseFlex::AddSceneEvent:  event failed\n" );

+		// Assert( 0 ); // expression failed to start

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+bool C_BaseFlex::StartSceneEvent( CSceneEventInfo *info, CChoreoScene *scene, CChoreoEvent *event, CChoreoActor *actor, CBaseEntity *pTarget )

+{

+	switch ( event->GetType() )

+	{

+	default:

+		break;

+

+	case CChoreoEvent::FLEXANIMATION:

+		info->InitWeight( this );

+		return true;

+

+	case CChoreoEvent::EXPRESSION:

+		return true;

+		

+	case CChoreoEvent::SEQUENCE: 

+		if ( info->m_bClientSide )

+		{

+			return RequestStartSequenceSceneEvent( info, scene, event, actor, pTarget );

+		}

+		break;

+

+	case CChoreoEvent::SPEAK:

+		if ( info->m_bClientSide )

+		{

+			return true;

+		}

+		break;

+	}

+

+	return false;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+bool C_BaseFlex::RequestStartSequenceSceneEvent( CSceneEventInfo *info, CChoreoScene *scene, CChoreoEvent *event, CChoreoActor *actor, CBaseEntity *pTarget )

+{

+	info->m_nSequence = LookupSequence( event->GetParameters() );

+

+	// make sure sequence exists

+	if ( info->m_nSequence < 0 )

+		return false;

+

+	info->m_pActor = actor;

+	return true;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Remove expression

+// Input  : scenefile - 

+//			expression - 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::RemoveSceneEvent( CChoreoScene *scene, CChoreoEvent *event, bool fastKill )

+{

+	Assert( event );

+

+	for ( int i = 0 ; i < m_SceneEvents.Count(); i++ )

+	{

+		CSceneEventInfo *info = &m_SceneEvents[ i ];

+

+		Assert( info );

+		Assert( info->m_pEvent );

+

+		if ( info->m_pScene != scene )

+			continue;

+

+		if ( info->m_pEvent != event)

+			continue;

+

+		if (ClearSceneEvent( info, fastKill, false ))

+		{

+			// Free this slot

+			info->m_pEvent		= NULL;

+			info->m_pScene		= NULL;

+			info->m_bStarted	= false;

+

+			m_SceneEvents.Remove( i );

+			return;

+		}

+	}

+

+	// many events refuse to start due to bogus parameters

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Checks to see if the event should be considered "completed"

+//-----------------------------------------------------------------------------

+bool C_BaseFlex::CheckSceneEvent( float currenttime, CChoreoScene *scene, CChoreoEvent *event )

+{

+	for ( int i = 0 ; i < m_SceneEvents.Count(); i++ )

+	{

+		CSceneEventInfo *info = &m_SceneEvents[ i ];

+

+		Assert( info );

+		Assert( info->m_pEvent );

+

+		if ( info->m_pScene != scene )

+			continue;

+

+		if ( info->m_pEvent != event)

+			continue;

+		

+		return CheckSceneEventCompletion( info, currenttime, scene, event );

+	}

+	return true;

+}

+

+

+

+bool C_BaseFlex::CheckSceneEventCompletion( CSceneEventInfo *info, float currenttime, CChoreoScene *scene, CChoreoEvent *event )

+{

+	return true;

+}

+

+void C_BaseFlex::SetFlexWeight( LocalFlexController_t index, float value )

+{

+	if (index >= 0 && index < GetNumFlexControllers())

+	{

+		CStudioHdr *pstudiohdr = GetModelPtr( );

+		if (! pstudiohdr)

+			return;

+

+		mstudioflexcontroller_t *pflexcontroller = pstudiohdr->pFlexcontroller( index );

+

+		if (pflexcontroller->max != pflexcontroller->min)

+		{

+			value = (value - pflexcontroller->min) / (pflexcontroller->max - pflexcontroller->min);

+			value = clamp( value, 0.0f, 1.0f );

+		}

+

+		m_flexWeight[ index ] = value;

+	}

+}

+

+float C_BaseFlex::GetFlexWeight( LocalFlexController_t index )

+{

+	if (index >= 0 && index < GetNumFlexControllers())

+	{

+		CStudioHdr *pstudiohdr = GetModelPtr( );

+		if (! pstudiohdr)

+			return 0;

+

+		mstudioflexcontroller_t *pflexcontroller = pstudiohdr->pFlexcontroller( index );

+

+		if (pflexcontroller->max != pflexcontroller->min)

+		{

+			return m_flexWeight[index] * (pflexcontroller->max - pflexcontroller->min) + pflexcontroller->min;

+		}

+				

+		return m_flexWeight[index];

+	}

+	return 0.0;

+}

+

+LocalFlexController_t C_BaseFlex::FindFlexController( const char *szName )

+{

+	for (LocalFlexController_t i = LocalFlexController_t(0); i < GetNumFlexControllers(); i++)

+	{

+		if (stricmp( GetFlexControllerName( i ), szName ) == 0)

+		{

+			return i;

+		}

+	}

+

+	// AssertMsg( 0, UTIL_VarArgs( "flexcontroller %s couldn't be mapped!!!\n", szName ) );

+	return LocalFlexController_t(-1);

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Default implementation

+//-----------------------------------------------------------------------------

+void C_BaseFlex::ProcessSceneEvents( bool bFlexEvents )

+{

+	CStudioHdr *hdr = GetModelPtr();

+	if ( !hdr )

+	{

+		return;

+	}

+

+	// slowly decay to netural expression

+

+	if ( bFlexEvents )

+	{

+		for ( LocalFlexController_t i = LocalFlexController_t(0); i < GetNumFlexControllers(); i++)

+		{

+			SetFlexWeight( i, GetFlexWeight( i ) * 0.95 );

+		}

+	}

+

+	// Iterate SceneEvents and look for active slots

+	for ( int i = 0; i < m_SceneEvents.Count(); i++ )

+	{

+		CSceneEventInfo *info = &m_SceneEvents[ i ];

+		Assert( info );

+

+		// FIXME:  Need a safe handle to m_pEvent in case of memory deletion?

+		CChoreoEvent *event = info->m_pEvent;

+		Assert( event );

+

+		CChoreoScene *scene = info->m_pScene;

+		Assert( scene );

+

+		if ( ProcessSceneEvent( bFlexEvents, info, scene, event ) )

+		{

+			info->m_bStarted = true;

+		}

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Various methods to process facial SceneEvents: 

+//-----------------------------------------------------------------------------

+bool C_BaseFlex::ProcessFlexAnimationSceneEvent( CSceneEventInfo *info, CChoreoScene *scene, CChoreoEvent *event )

+{

+	Assert( event->HasEndTime() );

+	if ( event->HasEndTime() )

+	{

+		AddFlexAnimation( info );

+	}

+	return true;

+}

+

+bool C_BaseFlex::ProcessFlexSettingSceneEvent( CSceneEventInfo *info, CChoreoScene *scene, CChoreoEvent *event )

+{

+	// Flexanimations have to have an end time!!!

+	if ( !event->HasEndTime() )

+		return true;

+

+	VPROF( "C_BaseFlex::ProcessFlexSettingSceneEvent" );

+

+	// Look up the actual strings

+	const char *scenefile	= event->GetParameters();

+	const char *name		= event->GetParameters2();

+	

+	// Have to find both strings

+	if ( scenefile && name )

+	{

+		// Find the scene file

+		const flexsettinghdr_t *pExpHdr = ( const flexsettinghdr_t * )g_FlexSceneFileManager.FindSceneFile( this, scenefile, true );

+		if ( pExpHdr )

+		{

+			float scenetime = scene->GetTime();

+			

+			float scale = event->GetIntensity( scenetime );

+			

+			// Add the named expression

+			AddFlexSetting( name, scale, pExpHdr, !info->m_bStarted );

+		}

+	}

+

+	return true;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Each CBaseFlex maintains a UtlRBTree of mappings, one for each loaded flex scene file it uses.  This is used to

+//  sort the entries in the RBTree

+// Input  : lhs - 

+//			rhs - 

+// Output : Returns true on success, false on failure.

+//-----------------------------------------------------------------------------

+bool FlexSettingLessFunc( const FS_LocalToGlobal_t& lhs, const FS_LocalToGlobal_t& rhs )

+{

+	return lhs.m_Key < rhs.m_Key;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Since everyone shared a pSettinghdr now, we need to set up the localtoglobal mapping per entity, but 

+//  we just do this in memory with an array of integers (could be shorts, I suppose)

+// Input  : *pSettinghdr - 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::EnsureTranslations( const flexsettinghdr_t *pSettinghdr )

+{

+	Assert( pSettinghdr );

+

+	FS_LocalToGlobal_t entry( pSettinghdr );

+

+	unsigned short idx = m_LocalToGlobal.Find( entry );

+	if ( idx != m_LocalToGlobal.InvalidIndex() )

+		return;

+

+	entry.SetCount( pSettinghdr->numkeys );

+

+	for ( int i = 0; i < pSettinghdr->numkeys; ++i )

+	{

+		entry.m_Mapping[ i ] = AddGlobalFlexController( pSettinghdr->pLocalName( i ) );

+	}

+

+	m_LocalToGlobal.Insert( entry );

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Look up instance specific mapping

+// Input  : *pSettinghdr - 

+//			key - 

+// Output : int

+//-----------------------------------------------------------------------------

+int C_BaseFlex::FlexControllerLocalToGlobal( const flexsettinghdr_t *pSettinghdr, int key )

+{

+	FS_LocalToGlobal_t entry( pSettinghdr );

+

+	int idx = m_LocalToGlobal.Find( entry );

+	if ( idx == m_LocalToGlobal.InvalidIndex() )

+	{

+		// This should never happen!!!

+		Assert( 0 );

+		Warning( "Unable to find mapping for flexcontroller %i, settings %p on %i/%s\n", key, pSettinghdr, entindex(), GetClassname() );

+		EnsureTranslations( pSettinghdr );

+		idx = m_LocalToGlobal.Find( entry );

+		if ( idx == m_LocalToGlobal.InvalidIndex() )

+		{

+			Error( "CBaseFlex::FlexControllerLocalToGlobal failed!\n" );

+		}

+	}

+

+	FS_LocalToGlobal_t& result = m_LocalToGlobal[ idx ];

+	// Validate lookup

+	Assert( result.m_nCount != 0 && key < result.m_nCount );

+	int index = result.m_Mapping[ key ];

+	return index;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *expr - 

+//			scale - 

+//			*pSettinghdr - 

+//			newexpression - 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::AddFlexSetting( const char *expr, float scale, 

+	const flexsettinghdr_t *pSettinghdr, bool newexpression )

+{

+	int i;

+	const flexsetting_t *pSetting = NULL;

+

+	// Find the named setting in the base

+	for ( i = 0; i < pSettinghdr->numflexsettings; i++ )

+	{

+		pSetting = pSettinghdr->pSetting( i );

+		if ( !pSetting )

+			continue;

+

+		const char *name = pSetting->pszName();

+

+		if ( !V_stricmp( name, expr ) )

+			break;

+	}

+

+	if ( i>=pSettinghdr->numflexsettings )

+	{

+		return;

+	}

+

+	flexweight_t *pWeights = NULL;

+	int truecount = pSetting->psetting( (byte *)pSettinghdr, 0, &pWeights );

+	if ( !pWeights )

+		return;

+

+	for (i = 0; i < truecount; i++, pWeights++)

+	{

+		// Translate to local flex controller

+		// this is translating from the settings's local index to the models local index

+		int index = FlexControllerLocalToGlobal( pSettinghdr, pWeights->key );

+

+		// blend scaled weighting in to total (post networking g_flexweight!!!!)

+		float s = clamp( scale * pWeights->influence, 0.0f, 1.0f );

+		g_flexweight[index] = g_flexweight[index] * (1.0f - s) + pWeights->weight * s;

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+bool C_BaseFlex::ProcessSceneEvent( bool bFlexEvents, CSceneEventInfo *info, CChoreoScene *scene, CChoreoEvent *event )

+{

+	switch ( event->GetType() )

+	{

+	default:

+		break;

+	case CChoreoEvent::FLEXANIMATION:

+		if ( bFlexEvents )

+		{

+			return ProcessFlexAnimationSceneEvent( info, scene, event );

+		}

+		return true;

+

+	case CChoreoEvent::EXPRESSION:

+		if ( !bFlexEvents )

+		{

+            return ProcessFlexSettingSceneEvent( info, scene, event );

+		}

+		return true;

+

+	case CChoreoEvent::SEQUENCE:

+		if ( info->m_bClientSide )

+		{

+			if ( !bFlexEvents )

+			{

+				return ProcessSequenceSceneEvent( info, scene, event );

+			}

+			return true;

+		}

+		break;

+

+	case CChoreoEvent::SPEAK:

+		if ( info->m_bClientSide )

+		{

+			return true;

+		}

+		break;

+	}

+

+	return false;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *actor - 

+//			*parameters - 

+//-----------------------------------------------------------------------------

+bool C_BaseFlex::ProcessSequenceSceneEvent( CSceneEventInfo *info, CChoreoScene *scene, CChoreoEvent *event )

+{

+	if ( !info  || !event || !scene )

+		return false;

+

+	SetSequence( info->m_nSequence );

+	return true;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+// Input  : *event - 

+//-----------------------------------------------------------------------------

+void C_BaseFlex::AddFlexAnimation( CSceneEventInfo *info )

+{	

+	if ( !info )

+		return;

+

+	CChoreoEvent *event = info->m_pEvent;

+	if ( !event )

+		return;

+

+	CChoreoScene *scene = info->m_pScene;

+	if ( !scene )

+		return;

+

+	if ( !event->GetTrackLookupSet() )

+	{

+		// Create lookup data

+		for ( int i = 0; i < event->GetNumFlexAnimationTracks(); i++ )

+		{

+			CFlexAnimationTrack *track = event->GetFlexAnimationTrack( i );

+			if ( !track )

+				continue;

+

+			if ( track->IsComboType() )

+			{

+				char name[ 512 ];

+				Q_strncpy( name, "right_" ,sizeof(name));

+				Q_strncat( name, track->GetFlexControllerName(),sizeof(name), COPY_ALL_CHARACTERS );

+

+				track->SetFlexControllerIndex( MAX( FindFlexController( name ), LocalFlexController_t(0) ), 0, 0 );

+

+				Q_strncpy( name, "left_" ,sizeof(name));

+				Q_strncat( name, track->GetFlexControllerName(),sizeof(name), COPY_ALL_CHARACTERS );

+

+				track->SetFlexControllerIndex( MAX( FindFlexController( name ), LocalFlexController_t(0) ), 0, 1 );

+			}

+			else

+			{

+				track->SetFlexControllerIndex( MAX( FindFlexController( (char *)track->GetFlexControllerName() ), LocalFlexController_t(0)), 0 );

+			}

+		}

+

+		event->SetTrackLookupSet( true );

+	}

+

+	if ( !scene_clientflex.GetBool() )

+		return;

+

+	float scenetime = scene->GetTime();

+

+	float weight = event->GetIntensity( scenetime );

+

+	// decay if this is a background scene and there's other flex animations playing

+	weight = weight * info->UpdateWeight( this );

+

+	// Compute intensity for each track in animation and apply

+	// Iterate animation tracks

+	for ( int i = 0; i < event->GetNumFlexAnimationTracks(); i++ )

+	{

+		CFlexAnimationTrack *track = event->GetFlexAnimationTrack( i );

+		if ( !track )

+			continue;

+

+		// Disabled

+		if ( !track->IsTrackActive() )

+			continue;

+

+		// Map track flex controller to global name

+		if ( track->IsComboType() )

+		{

+			for ( int side = 0; side < 2; side++ )

+			{

+				LocalFlexController_t controller = track->GetRawFlexControllerIndex( side );

+

+				// Get spline intensity for controller

+				float flIntensity = track->GetIntensity( scenetime, side );

+				if ( controller >= LocalFlexController_t(0) )

+				{

+					float orig = GetFlexWeight( controller );

+					float value = orig * (1 - weight) + flIntensity * weight;

+					SetFlexWeight( controller, value );

+				}

+			}

+		}

+		else

+		{

+			LocalFlexController_t controller = track->GetRawFlexControllerIndex( 0 );

+

+			// Get spline intensity for controller

+			float flIntensity = track->GetIntensity( scenetime, 0 );

+			if ( controller >= LocalFlexController_t(0) )

+			{

+				float orig = GetFlexWeight( controller );

+				float value = orig * (1 - weight) + flIntensity * weight;

+				SetFlexWeight( controller, value );

+			}

+		}

+	}

+

+	info->m_bStarted = true;

+}

+

+void CSceneEventInfo::InitWeight( C_BaseFlex *pActor )

+{

+	m_flWeight = 1.0;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: update weight for background events.  Only call once per think

+//-----------------------------------------------------------------------------

+

+float CSceneEventInfo::UpdateWeight( C_BaseFlex *pActor )

+{

+	m_flWeight = MIN( m_flWeight + 0.1, 1.0 );

+	return m_flWeight;

+}

+

+BEGIN_BYTESWAP_DATADESC( flexsettinghdr_t )

+	DEFINE_FIELD( id, FIELD_INTEGER ),

+	DEFINE_FIELD( version, FIELD_INTEGER ),

+	DEFINE_ARRAY( name, FIELD_CHARACTER, 64 ),

+	DEFINE_FIELD( length, FIELD_INTEGER ),

+	DEFINE_FIELD( numflexsettings, FIELD_INTEGER ),

+	DEFINE_FIELD( flexsettingindex, FIELD_INTEGER ),

+	DEFINE_FIELD( nameindex, FIELD_INTEGER ),

+	DEFINE_FIELD( numindexes, FIELD_INTEGER ),

+	DEFINE_FIELD( indexindex, FIELD_INTEGER ),

+	DEFINE_FIELD( numkeys, FIELD_INTEGER ),

+	DEFINE_FIELD( keynameindex, FIELD_INTEGER ),

+	DEFINE_FIELD( keymappingindex, FIELD_INTEGER ),

+END_BYTESWAP_DATADESC()

+

+BEGIN_BYTESWAP_DATADESC( flexsetting_t )

+	DEFINE_FIELD( nameindex, FIELD_INTEGER ),

+	DEFINE_FIELD( obsolete1, FIELD_INTEGER ),

+	DEFINE_FIELD( numsettings, FIELD_INTEGER ),

+	DEFINE_FIELD( index, FIELD_INTEGER ),

+	DEFINE_FIELD( obsolete2, FIELD_INTEGER ),

+	DEFINE_FIELD( settingindex, FIELD_INTEGER ),

+END_BYTESWAP_DATADESC()

+

+BEGIN_BYTESWAP_DATADESC( flexweight_t )

+	DEFINE_FIELD( key, FIELD_INTEGER ),

+	DEFINE_FIELD( weight, FIELD_FLOAT ),

+	DEFINE_FIELD( influence, FIELD_FLOAT ),

+END_BYTESWAP_DATADESC()

+