Fix line endings. WHAMMY.

1 files changed, 645 insertions, 645 deletions

diff --git a/mp/src/game/server/smoke_trail.cpp b/mp/src/game/server/smoke_trail.cpp
index 88806fd5..f467e60b 100644
--- a/mp/src/game/server/smoke_trail.cpp
+++ b/mp/src/game/server/smoke_trail.cpp
@@ -1,645 +1,645 @@
-//========= Copyright Valve Corporation, All rights reserved. ============//

-//

-// Purpose: 

-//

-// $NoKeywords: $

-//

-//=============================================================================//

-#include "cbase.h"

-#include "smoke_trail.h"

-#include "dt_send.h"

-

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

-#include "tier0/memdbgon.h"

-

-#define SMOKETRAIL_ENTITYNAME		"env_smoketrail"

-#define SPORETRAIL_ENTITYNAME		"env_sporetrail"

-#define SPOREEXPLOSION_ENTITYNAME	"env_sporeexplosion"

-#define DUSTTRAIL_ENTITYNAME		"env_dusttrail"

-

-//-----------------------------------------------------------------------------

-//Data table

-//-----------------------------------------------------------------------------

-IMPLEMENT_SERVERCLASS_ST(SmokeTrail, DT_SmokeTrail)

-	SendPropFloat(SENDINFO(m_SpawnRate), 8, 0, 1, 1024),

-	SendPropVector(SENDINFO(m_StartColor), 8, 0, 0, 1),

-	SendPropVector(SENDINFO(m_EndColor), 8, 0, 0, 1),

-	SendPropFloat(SENDINFO(m_ParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),

-	SendPropFloat(SENDINFO(m_StopEmitTime), 0, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MinSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MaxSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MinDirectedSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MaxDirectedSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_StartSize), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_EndSize), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_SpawnRadius), -1, SPROP_NOSCALE),

-	SendPropBool(SENDINFO(m_bEmit) ),

-	SendPropInt(SENDINFO(m_nAttachment), 32 ),	

-	SendPropFloat(SENDINFO(m_Opacity), -1, SPROP_NOSCALE),

-END_SEND_TABLE()

-

-LINK_ENTITY_TO_CLASS(env_smoketrail, SmokeTrail);

-

-BEGIN_DATADESC( SmokeTrail )

-

-	DEFINE_FIELD( m_StartColor, FIELD_VECTOR ),

-	DEFINE_FIELD( m_EndColor, FIELD_VECTOR ),

-	DEFINE_KEYFIELD( m_Opacity, FIELD_FLOAT, "opacity" ),

-	DEFINE_KEYFIELD( m_SpawnRate, FIELD_FLOAT, "spawnrate" ),

-	DEFINE_KEYFIELD( m_ParticleLifetime, FIELD_FLOAT, "lifetime" ),

-	DEFINE_FIELD( m_StopEmitTime, FIELD_TIME ),

-	DEFINE_KEYFIELD( m_MinSpeed, FIELD_FLOAT, "minspeed" ),

-	DEFINE_KEYFIELD( m_MaxSpeed, FIELD_FLOAT, "maxspeed" ),

-	DEFINE_KEYFIELD( m_MinDirectedSpeed, FIELD_FLOAT, "mindirectedspeed" ),

-	DEFINE_KEYFIELD( m_MaxDirectedSpeed, FIELD_FLOAT, "maxdirectedspeed" ),

-	DEFINE_KEYFIELD( m_StartSize, FIELD_FLOAT, "startsize" ),

-	DEFINE_KEYFIELD( m_EndSize, FIELD_FLOAT, "endsize" ),

-	DEFINE_KEYFIELD( m_SpawnRadius, FIELD_FLOAT, "spawnradius" ),

-	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),

-	DEFINE_FIELD( m_nAttachment, FIELD_INTEGER ),

-

-END_DATADESC()

-

-

-//-----------------------------------------------------------------------------

-// Purpose: 

-// Output : 

-//-----------------------------------------------------------------------------

-SmokeTrail::SmokeTrail()

-{

-	m_SpawnRate = 10;

-	m_StartColor.GetForModify().Init(0.5, 0.5, 0.5);

-	m_EndColor.GetForModify().Init(0,0,0);

-	m_ParticleLifetime = 5;

-	m_StopEmitTime = 0; // Don't stop emitting particles

-	m_MinSpeed = 2;

-	m_MaxSpeed = 4;

-	m_MinDirectedSpeed = m_MaxDirectedSpeed = 0;

-	m_StartSize = 35;

-	m_EndSize = 55;

-	m_SpawnRadius = 2;

-	m_bEmit = true;

-	m_nAttachment	= 0;

-	m_Opacity = 0.5f;

-}

-

-

-//-----------------------------------------------------------------------------

-// Parse data from a map file

-//-----------------------------------------------------------------------------

-bool SmokeTrail::KeyValue( const char *szKeyName, const char *szValue ) 

-{

-	if ( FStrEq( szKeyName, "startcolor" ) )

-	{

-		color32 tmp;

-		UTIL_StringToColor32( &tmp, szValue );

-		m_StartColor.GetForModify().Init( tmp.r / 255.0f, tmp.g / 255.0f, tmp.b / 255.0f );

-		return true;

-	}

-

-	if ( FStrEq( szKeyName, "endcolor" ) )

-	{

-		color32 tmp;

-		UTIL_StringToColor32( &tmp, szValue );

-		m_EndColor.GetForModify().Init( tmp.r / 255.0f, tmp.g / 255.0f, tmp.b / 255.0f );

-		return true;

-	}

-

-	if ( FStrEq( szKeyName, "emittime" ) )

-	{

-		m_StopEmitTime = gpGlobals->curtime + atof( szValue );

-		return true;

-	}

-

-	return BaseClass::KeyValue( szKeyName, szValue );

-}

-

-

-//-----------------------------------------------------------------------------

-// Purpose :

-// Input   :

-// Output  :

-//-----------------------------------------------------------------------------

-void SmokeTrail::SetEmit(bool bVal)

-{

-	m_bEmit = bVal;

-}

-

-

-//-----------------------------------------------------------------------------

-// Purpose: 

-// Output : SmokeTrail*

-//-----------------------------------------------------------------------------

-SmokeTrail* SmokeTrail::CreateSmokeTrail()

-{

-	CBaseEntity *pEnt = CreateEntityByName(SMOKETRAIL_ENTITYNAME);

-	if(pEnt)

-	{

-		SmokeTrail *pSmoke = dynamic_cast<SmokeTrail*>(pEnt);

-		if(pSmoke)

-		{

-			pSmoke->Activate();

-			return pSmoke;

-		}

-		else

-		{

-			UTIL_Remove(pEnt);

-		}

-	}

-

-	return NULL;

-}

-

-//-----------------------------------------------------------------------------

-// Purpose: Attach the smoke trail to an entity or point 

-// Input  : index - entity that has the attachment

-//			attachment - point to attach to

-//-----------------------------------------------------------------------------

-void SmokeTrail::FollowEntity( CBaseEntity *pEntity, const char *pAttachmentName )

-{

-	// For attachments

-	if ( pAttachmentName && pEntity && pEntity->GetBaseAnimating() )

-	{

-		m_nAttachment = pEntity->GetBaseAnimating()->LookupAttachment( pAttachmentName );

-	}

-	else

-	{

-		m_nAttachment = 0;

-	}

-

-	BaseClass::FollowEntity( pEntity );

-}

-

-

-//==================================================

-// RocketTrail

-//==================================================

-

-//Data table

-IMPLEMENT_SERVERCLASS_ST(RocketTrail, DT_RocketTrail)

-	SendPropFloat(SENDINFO(m_SpawnRate), 8, 0, 1, 1024),

-	SendPropVector(SENDINFO(m_StartColor), 8, 0, 0, 1),

-	SendPropVector(SENDINFO(m_EndColor), 8, 0, 0, 1),

-	SendPropFloat(SENDINFO(m_ParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),

-	SendPropFloat(SENDINFO(m_StopEmitTime), 0, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MinSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MaxSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_StartSize), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_EndSize), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_SpawnRadius), -1, SPROP_NOSCALE),

-	SendPropBool(SENDINFO(m_bEmit)),

-	SendPropInt(SENDINFO(m_nAttachment), 32 ),	

-	SendPropFloat(SENDINFO(m_Opacity), -1, SPROP_NOSCALE),

-	SendPropInt	(SENDINFO(m_bDamaged), 1, SPROP_UNSIGNED),

-	SendPropFloat(SENDINFO(m_flFlareScale), -1, SPROP_NOSCALE),

-END_SEND_TABLE()

-

-LINK_ENTITY_TO_CLASS( env_rockettrail, RocketTrail );

-

-BEGIN_DATADESC( RocketTrail )

-

-	DEFINE_FIELD( m_StartColor, FIELD_VECTOR ),

-	DEFINE_FIELD( m_EndColor, FIELD_VECTOR ),

-	DEFINE_FIELD( m_Opacity, FIELD_FLOAT ),

-	DEFINE_FIELD( m_SpawnRate, FIELD_FLOAT ),

-	DEFINE_FIELD( m_ParticleLifetime, FIELD_FLOAT ),

-	DEFINE_FIELD( m_StopEmitTime, FIELD_TIME ),

-	DEFINE_FIELD( m_MinSpeed, FIELD_FLOAT ),

-	DEFINE_FIELD( m_MaxSpeed, FIELD_FLOAT ),

-	DEFINE_FIELD( m_StartSize, FIELD_FLOAT ),

-	DEFINE_FIELD( m_EndSize, FIELD_FLOAT ),

-	DEFINE_FIELD( m_SpawnRadius, FIELD_FLOAT ),

-	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),

-	DEFINE_FIELD( m_nAttachment, FIELD_INTEGER ),

-	DEFINE_FIELD( m_bDamaged, FIELD_BOOLEAN ),

-	DEFINE_FIELD( m_flFlareScale, FIELD_FLOAT ),

-

-END_DATADESC()

-

-//-----------------------------------------------------------------------------

-// Purpose: 

-// Output : 

-//-----------------------------------------------------------------------------

-RocketTrail::RocketTrail()

-{

-	m_SpawnRate = 10;

-	m_StartColor.GetForModify().Init(0.5, 0.5, 0.5);

-	m_EndColor.GetForModify().Init(0,0,0);

-	m_ParticleLifetime = 5;

-	m_StopEmitTime = 0; // Don't stop emitting particles

-	m_MinSpeed = 2;

-	m_MaxSpeed = 4;

-	m_StartSize = 35;

-	m_EndSize = 55;

-	m_SpawnRadius = 2;

-	m_bEmit = true;

-	m_nAttachment	= 0;

-	m_Opacity = 0.5f;

-	m_flFlareScale = 1.5;

-}

-

-//------------------------------------------------------------------------------

-// Purpose :

-// Input   :

-// Output  :

-//------------------------------------------------------------------------------

-void RocketTrail::SetEmit(bool bVal)

-{

-	m_bEmit = bVal;

-}

-

-//-----------------------------------------------------------------------------

-// Purpose: 

-// Output : SmokeTrail*

-//-----------------------------------------------------------------------------

-RocketTrail* RocketTrail::CreateRocketTrail()

-{

-	CBaseEntity *pEnt = CreateEntityByName( "env_rockettrail" );

-	

-	if( pEnt != NULL )

-	{

-		RocketTrail *pTrail = dynamic_cast<RocketTrail*>(pEnt);

-		

-		if( pTrail != NULL )

-		{

-			pTrail->Activate();

-			return pTrail;

-		}

-		else

-		{

-			UTIL_Remove( pEnt );

-		}

-	}

-

-	return NULL;

-}

-

-//-----------------------------------------------------------------------------

-// Purpose: Attach the smoke trail to an entity or point 

-// Input  : index - entity that has the attachment

-//			attachment - point to attach to

-//-----------------------------------------------------------------------------

-void RocketTrail::FollowEntity( CBaseEntity *pEntity, const char *pAttachmentName )

-{

-	// For attachments

-	if ( pAttachmentName && pEntity && pEntity->GetBaseAnimating() )

-	{

-		m_nAttachment = pEntity->GetBaseAnimating()->LookupAttachment( pAttachmentName );

-	}

-	else

-	{

-		m_nAttachment = 0;

-	}

-

-	BaseClass::FollowEntity( pEntity );

-}

-

-//==================================================

-// SporeTrail

-//==================================================

-

-IMPLEMENT_SERVERCLASS_ST( SporeTrail, DT_SporeTrail )

-	SendPropFloat	(SENDINFO(m_flSpawnRate), 8, 0, 1, 1024),

-	SendPropVector	(SENDINFO(m_vecEndColor), 8, 0, 0, 1),

-	SendPropFloat	(SENDINFO(m_flParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),

-	SendPropFloat	(SENDINFO(m_flStartSize), -1, SPROP_NOSCALE),

-	SendPropFloat	(SENDINFO(m_flEndSize), -1, SPROP_NOSCALE),

-	SendPropFloat	(SENDINFO(m_flSpawnRadius), -1, SPROP_NOSCALE),

-	SendPropBool	(SENDINFO(m_bEmit)),

-END_SEND_TABLE()

-

-LINK_ENTITY_TO_CLASS(env_sporetrail, SporeTrail);

-

-BEGIN_DATADESC( SporeTrail )

-

-	DEFINE_FIELD( m_vecEndColor, FIELD_VECTOR ),

-	DEFINE_FIELD( m_flSpawnRate, FIELD_FLOAT ),

-	DEFINE_FIELD( m_flParticleLifetime, FIELD_FLOAT ),

-	DEFINE_FIELD( m_flStartSize, FIELD_FLOAT ),

-	DEFINE_FIELD( m_flEndSize, FIELD_FLOAT ),

-	DEFINE_FIELD( m_flSpawnRadius, FIELD_FLOAT ),

-	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),

-

-END_DATADESC()

-

-SporeTrail::SporeTrail( void )

-{

-	m_vecEndColor.GetForModify().Init();

-

-	m_flSpawnRate			= 100.0f;

-	m_flParticleLifetime	= 1.0f;

-	m_flStartSize			= 1.0f;

-	m_flEndSize				= 0.0f;

-	m_flSpawnRadius			= 16.0f;

-	SetRenderColor( 255, 255, 255, 255 );

-}

-

-//-----------------------------------------------------------------------------

-// Purpose: 

-// Output : SporeTrail*

-//-----------------------------------------------------------------------------

-SporeTrail* SporeTrail::CreateSporeTrail()

-{

-	CBaseEntity *pEnt = CreateEntityByName( SPORETRAIL_ENTITYNAME );

-	

-	if(pEnt)

-	{

-		SporeTrail *pSpore = dynamic_cast<SporeTrail*>(pEnt);

-		

-		if ( pSpore )

-		{

-			pSpore->Activate();

-			return pSpore;

-		}

-		else

-		{

-			UTIL_Remove( pEnt );

-		}

-	}

-

-	return NULL;

-}

-

-//==================================================

-// SporeExplosion

-//==================================================

-

-IMPLEMENT_SERVERCLASS_ST( SporeExplosion, DT_SporeExplosion )

-	SendPropFloat	(SENDINFO(m_flSpawnRate), 8, 0, 1, 1024),

-	SendPropFloat	(SENDINFO(m_flParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),

-	SendPropFloat	(SENDINFO(m_flStartSize), -1, SPROP_NOSCALE),

-	SendPropFloat	(SENDINFO(m_flEndSize), -1, SPROP_NOSCALE),

-	SendPropFloat	(SENDINFO(m_flSpawnRadius), -1, SPROP_NOSCALE),

-	SendPropBool	(SENDINFO(m_bEmit) ),

-	SendPropBool	(SENDINFO(m_bDontRemove) ),

-END_SEND_TABLE()

-

-LINK_ENTITY_TO_CLASS( env_sporeexplosion, SporeExplosion );

-

-BEGIN_DATADESC( SporeExplosion )

-

-	DEFINE_KEYFIELD( m_flSpawnRate, FIELD_FLOAT, "spawnrate" ),

-	DEFINE_FIELD( m_flParticleLifetime, FIELD_FLOAT ),

-	DEFINE_FIELD( m_flStartSize, FIELD_FLOAT ),

-	DEFINE_FIELD( m_flEndSize, FIELD_FLOAT ),

-	DEFINE_FIELD( m_flSpawnRadius, FIELD_FLOAT ),

-	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),

-	DEFINE_KEYFIELD( m_bDisabled, FIELD_BOOLEAN, "startdisabled" ),

-	DEFINE_FIELD( m_bDontRemove, FIELD_BOOLEAN ),

-

-	DEFINE_INPUTFUNC( FIELD_VOID, "Disable", InputDisable ),

-	DEFINE_INPUTFUNC( FIELD_VOID, "Enable", InputEnable ),

-

-END_DATADESC()

-

-SporeExplosion::SporeExplosion( void )

-{

-	m_flSpawnRate			= 100.0f;

-	m_flParticleLifetime	= 1.0f;

-	m_flStartSize			= 1.0f;

-	m_flEndSize				= 0.0f;

-	m_flSpawnRadius			= 16.0f;

-	SetRenderColor( 255, 255, 255, 255 );

-	m_bEmit = true;

-	m_bDisabled = false;

-}

-

-//-----------------------------------------------------------------------------

-//-----------------------------------------------------------------------------

-void SporeExplosion::Spawn( void )

-{

-	BaseClass::Spawn();

-

-	m_bEmit = false;

-}

-

-//-----------------------------------------------------------------------------

-// Purpose: 

-// Output : SporeExplosion*

-//-----------------------------------------------------------------------------

-SporeExplosion *SporeExplosion::CreateSporeExplosion()

-{

-	CBaseEntity *pEnt = CreateEntityByName( SPOREEXPLOSION_ENTITYNAME );

-	

-	if ( pEnt )

-	{

-		SporeExplosion *pSpore = dynamic_cast<SporeExplosion*>(pEnt);

-		

-		if ( pSpore )

-		{

-			pSpore->Activate();

-			return pSpore;

-		}

-		else

-		{

-			UTIL_Remove( pEnt );

-		}

-	}

-

-	return NULL;

-}

-

-void SporeExplosion::InputEnable( inputdata_t &inputdata )

-{

-	m_bDontRemove = true;

-	m_bDisabled = false;

-	m_bEmit = true;

-}

-

-void SporeExplosion::InputDisable( inputdata_t &inputdata )

-{

-	m_bDontRemove = true;

-	m_bDisabled = true;

-	m_bEmit = false;

-}

-

-BEGIN_DATADESC( CFireTrail )

-

-	DEFINE_FIELD( m_flLifetime, FIELD_FLOAT ),

-	DEFINE_FIELD( m_nAttachment, FIELD_INTEGER ),

-

-END_DATADESC()

-

-IMPLEMENT_SERVERCLASS_ST( CFireTrail, DT_FireTrail )

-	SendPropInt( SENDINFO( m_nAttachment ), 32 ),

-	SendPropFloat( SENDINFO( m_flLifetime ), 0, SPROP_NOSCALE ),

-END_SEND_TABLE()

-

-LINK_ENTITY_TO_CLASS( env_fire_trail, CFireTrail );

-

-void CFireTrail::Precache( void )

-{

-	PrecacheMaterial( "sprites/flamelet1" );

-	PrecacheMaterial( "sprites/flamelet2" );

-	PrecacheMaterial( "sprites/flamelet3" );

-	PrecacheMaterial( "sprites/flamelet4" );

-	PrecacheMaterial( "sprites/flamelet5" );

-	PrecacheMaterial( "particle/particle_smokegrenade" );

-	PrecacheMaterial( "particle/particle_noisesphere" );

-}

-

-//-----------------------------------------------------------------------------

-// Purpose: Attach the smoke trail to an entity or point 

-// Input  : index - entity that has the attachment

-//			attachment - point to attach to

-//-----------------------------------------------------------------------------

-void CFireTrail::FollowEntity( CBaseEntity *pEntity, const char *pAttachmentName )

-{

-	// For attachments

-	if ( pAttachmentName && pEntity && pEntity->GetBaseAnimating() )

-	{

-		m_nAttachment = pEntity->GetBaseAnimating()->LookupAttachment( pAttachmentName );

-	}

-	else

-	{

-		m_nAttachment = 0;

-	}

-

-	BaseClass::FollowEntity( pEntity );

-}

-

-//-----------------------------------------------------------------------------

-// Purpose: Create and return a new fire trail entity

-//-----------------------------------------------------------------------------

-CFireTrail *CFireTrail::CreateFireTrail( void )

-{

-	CBaseEntity *pEnt = CreateEntityByName( "env_fire_trail" );

-	

-	if ( pEnt )

-	{

-		CFireTrail *pTrail = dynamic_cast<CFireTrail*>(pEnt);

-		

-		if ( pTrail )

-		{

-			pTrail->Activate();

-			return pTrail;

-		}

-		else

-		{

-			UTIL_Remove( pEnt );

-		}

-	}

-

-	return NULL;	

-}

-

-

-//-----------------------------------------------------------------------------

-//Data table

-//-----------------------------------------------------------------------------

-IMPLEMENT_SERVERCLASS_ST(DustTrail, DT_DustTrail)

-	SendPropFloat(SENDINFO(m_SpawnRate), 8, 0, 1, 1024),

-	SendPropVector(SENDINFO(m_Color), 8, 0, 0, 1),

-	SendPropFloat(SENDINFO(m_ParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),

-	SendPropFloat(SENDINFO(m_StopEmitTime), 0, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MinSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MaxSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MinDirectedSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_MaxDirectedSpeed), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_StartSize), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_EndSize), -1, SPROP_NOSCALE),

-	SendPropFloat(SENDINFO(m_SpawnRadius), -1, SPROP_NOSCALE),

-	SendPropBool(SENDINFO(m_bEmit) ),

-	SendPropFloat(SENDINFO(m_Opacity), -1, SPROP_NOSCALE),

-END_SEND_TABLE()

-

-LINK_ENTITY_TO_CLASS( env_dusttrail, DustTrail);

-

-BEGIN_DATADESC( DustTrail )

-

-	DEFINE_FIELD( m_Color, FIELD_VECTOR ),

-	DEFINE_KEYFIELD( m_Opacity, FIELD_FLOAT, "opacity" ),

-	DEFINE_KEYFIELD( m_SpawnRate, FIELD_FLOAT, "spawnrate" ),

-	DEFINE_KEYFIELD( m_ParticleLifetime, FIELD_FLOAT, "lifetime" ),

-	DEFINE_FIELD( m_StopEmitTime, FIELD_TIME ),

-	DEFINE_KEYFIELD( m_MinSpeed, FIELD_FLOAT, "minspeed" ),

-	DEFINE_KEYFIELD( m_MaxSpeed, FIELD_FLOAT, "maxspeed" ),

-	DEFINE_KEYFIELD( m_MinDirectedSpeed, FIELD_FLOAT, "mindirectedspeed" ),

-	DEFINE_KEYFIELD( m_MaxDirectedSpeed, FIELD_FLOAT, "maxdirectedspeed" ),

-	DEFINE_KEYFIELD( m_StartSize, FIELD_FLOAT, "startsize" ),

-	DEFINE_KEYFIELD( m_EndSize, FIELD_FLOAT, "endsize" ),

-	DEFINE_KEYFIELD( m_SpawnRadius, FIELD_FLOAT, "spawnradius" ),

-	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),

-	DEFINE_FIELD( m_nAttachment, FIELD_INTEGER ),

-

-END_DATADESC()

-

-

-//-----------------------------------------------------------------------------

-// Purpose: 

-// Output : 

-//-----------------------------------------------------------------------------

-DustTrail::DustTrail()

-{

-	m_SpawnRate = 10;

-	m_Color.GetForModify().Init(0.5, 0.5, 0.5);

-	m_ParticleLifetime = 5;

-	m_StopEmitTime = 0; // Don't stop emitting particles

-	m_MinSpeed = 2;

-	m_MaxSpeed = 4;

-	m_MinDirectedSpeed = m_MaxDirectedSpeed = 0;

-	m_StartSize = 35;

-	m_EndSize = 55;

-	m_SpawnRadius = 2;

-	m_bEmit = true;

-	m_Opacity = 0.5f;

-}

-

-

-//-----------------------------------------------------------------------------

-// Parse data from a map file

-//-----------------------------------------------------------------------------

-bool DustTrail::KeyValue( const char *szKeyName, const char *szValue ) 

-{

-	if ( FStrEq( szKeyName, "color" ) )

-	{

-		color32 tmp;

-		UTIL_StringToColor32( &tmp, szValue );

-		m_Color.GetForModify().Init( tmp.r / 255.0f, tmp.g / 255.0f, tmp.b / 255.0f );

-		return true;

-	}

-

-	if ( FStrEq( szKeyName, "emittime" ) )

-	{

-		m_StopEmitTime = gpGlobals->curtime + atof( szValue );

-		return true;

-	}

-

-	return BaseClass::KeyValue( szKeyName, szValue );

-}

-

-

-//-----------------------------------------------------------------------------

-// Purpose :

-// Input   :

-// Output  :

-//-----------------------------------------------------------------------------

-void DustTrail::SetEmit(bool bVal)

-{

-	m_bEmit = bVal;

-}

-

-

-//-----------------------------------------------------------------------------

-// Purpose: 

-// Output : DustTrail*

-//-----------------------------------------------------------------------------

-DustTrail* DustTrail::CreateDustTrail()

-{

-	CBaseEntity *pEnt = CreateEntityByName(DUSTTRAIL_ENTITYNAME);

-	if(pEnt)

-	{

-		DustTrail *pDust = dynamic_cast<DustTrail*>(pEnt);

-		if(pDust)

-		{

-			pDust->Activate();

-			return pDust;

-		}

-		else

-		{

-			UTIL_Remove(pEnt);

-		}

-	}

-

-	return NULL;

-}

+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+#include "cbase.h"
+#include "smoke_trail.h"
+#include "dt_send.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+#define SMOKETRAIL_ENTITYNAME		"env_smoketrail"
+#define SPORETRAIL_ENTITYNAME		"env_sporetrail"
+#define SPOREEXPLOSION_ENTITYNAME	"env_sporeexplosion"
+#define DUSTTRAIL_ENTITYNAME		"env_dusttrail"
+
+//-----------------------------------------------------------------------------
+//Data table
+//-----------------------------------------------------------------------------
+IMPLEMENT_SERVERCLASS_ST(SmokeTrail, DT_SmokeTrail)
+	SendPropFloat(SENDINFO(m_SpawnRate), 8, 0, 1, 1024),
+	SendPropVector(SENDINFO(m_StartColor), 8, 0, 0, 1),
+	SendPropVector(SENDINFO(m_EndColor), 8, 0, 0, 1),
+	SendPropFloat(SENDINFO(m_ParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),
+	SendPropFloat(SENDINFO(m_StopEmitTime), 0, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MinSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MaxSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MinDirectedSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MaxDirectedSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_StartSize), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_EndSize), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_SpawnRadius), -1, SPROP_NOSCALE),
+	SendPropBool(SENDINFO(m_bEmit) ),
+	SendPropInt(SENDINFO(m_nAttachment), 32 ),	
+	SendPropFloat(SENDINFO(m_Opacity), -1, SPROP_NOSCALE),
+END_SEND_TABLE()
+
+LINK_ENTITY_TO_CLASS(env_smoketrail, SmokeTrail);
+
+BEGIN_DATADESC( SmokeTrail )
+
+	DEFINE_FIELD( m_StartColor, FIELD_VECTOR ),
+	DEFINE_FIELD( m_EndColor, FIELD_VECTOR ),
+	DEFINE_KEYFIELD( m_Opacity, FIELD_FLOAT, "opacity" ),
+	DEFINE_KEYFIELD( m_SpawnRate, FIELD_FLOAT, "spawnrate" ),
+	DEFINE_KEYFIELD( m_ParticleLifetime, FIELD_FLOAT, "lifetime" ),
+	DEFINE_FIELD( m_StopEmitTime, FIELD_TIME ),
+	DEFINE_KEYFIELD( m_MinSpeed, FIELD_FLOAT, "minspeed" ),
+	DEFINE_KEYFIELD( m_MaxSpeed, FIELD_FLOAT, "maxspeed" ),
+	DEFINE_KEYFIELD( m_MinDirectedSpeed, FIELD_FLOAT, "mindirectedspeed" ),
+	DEFINE_KEYFIELD( m_MaxDirectedSpeed, FIELD_FLOAT, "maxdirectedspeed" ),
+	DEFINE_KEYFIELD( m_StartSize, FIELD_FLOAT, "startsize" ),
+	DEFINE_KEYFIELD( m_EndSize, FIELD_FLOAT, "endsize" ),
+	DEFINE_KEYFIELD( m_SpawnRadius, FIELD_FLOAT, "spawnradius" ),
+	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),
+	DEFINE_FIELD( m_nAttachment, FIELD_INTEGER ),
+
+END_DATADESC()
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : 
+//-----------------------------------------------------------------------------
+SmokeTrail::SmokeTrail()
+{
+	m_SpawnRate = 10;
+	m_StartColor.GetForModify().Init(0.5, 0.5, 0.5);
+	m_EndColor.GetForModify().Init(0,0,0);
+	m_ParticleLifetime = 5;
+	m_StopEmitTime = 0; // Don't stop emitting particles
+	m_MinSpeed = 2;
+	m_MaxSpeed = 4;
+	m_MinDirectedSpeed = m_MaxDirectedSpeed = 0;
+	m_StartSize = 35;
+	m_EndSize = 55;
+	m_SpawnRadius = 2;
+	m_bEmit = true;
+	m_nAttachment	= 0;
+	m_Opacity = 0.5f;
+}
+
+
+//-----------------------------------------------------------------------------
+// Parse data from a map file
+//-----------------------------------------------------------------------------
+bool SmokeTrail::KeyValue( const char *szKeyName, const char *szValue ) 
+{
+	if ( FStrEq( szKeyName, "startcolor" ) )
+	{
+		color32 tmp;
+		UTIL_StringToColor32( &tmp, szValue );
+		m_StartColor.GetForModify().Init( tmp.r / 255.0f, tmp.g / 255.0f, tmp.b / 255.0f );
+		return true;
+	}
+
+	if ( FStrEq( szKeyName, "endcolor" ) )
+	{
+		color32 tmp;
+		UTIL_StringToColor32( &tmp, szValue );
+		m_EndColor.GetForModify().Init( tmp.r / 255.0f, tmp.g / 255.0f, tmp.b / 255.0f );
+		return true;
+	}
+
+	if ( FStrEq( szKeyName, "emittime" ) )
+	{
+		m_StopEmitTime = gpGlobals->curtime + atof( szValue );
+		return true;
+	}
+
+	return BaseClass::KeyValue( szKeyName, szValue );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose :
+// Input   :
+// Output  :
+//-----------------------------------------------------------------------------
+void SmokeTrail::SetEmit(bool bVal)
+{
+	m_bEmit = bVal;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : SmokeTrail*
+//-----------------------------------------------------------------------------
+SmokeTrail* SmokeTrail::CreateSmokeTrail()
+{
+	CBaseEntity *pEnt = CreateEntityByName(SMOKETRAIL_ENTITYNAME);
+	if(pEnt)
+	{
+		SmokeTrail *pSmoke = dynamic_cast<SmokeTrail*>(pEnt);
+		if(pSmoke)
+		{
+			pSmoke->Activate();
+			return pSmoke;
+		}
+		else
+		{
+			UTIL_Remove(pEnt);
+		}
+	}
+
+	return NULL;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Attach the smoke trail to an entity or point 
+// Input  : index - entity that has the attachment
+//			attachment - point to attach to
+//-----------------------------------------------------------------------------
+void SmokeTrail::FollowEntity( CBaseEntity *pEntity, const char *pAttachmentName )
+{
+	// For attachments
+	if ( pAttachmentName && pEntity && pEntity->GetBaseAnimating() )
+	{
+		m_nAttachment = pEntity->GetBaseAnimating()->LookupAttachment( pAttachmentName );
+	}
+	else
+	{
+		m_nAttachment = 0;
+	}
+
+	BaseClass::FollowEntity( pEntity );
+}
+
+
+//==================================================
+// RocketTrail
+//==================================================
+
+//Data table
+IMPLEMENT_SERVERCLASS_ST(RocketTrail, DT_RocketTrail)
+	SendPropFloat(SENDINFO(m_SpawnRate), 8, 0, 1, 1024),
+	SendPropVector(SENDINFO(m_StartColor), 8, 0, 0, 1),
+	SendPropVector(SENDINFO(m_EndColor), 8, 0, 0, 1),
+	SendPropFloat(SENDINFO(m_ParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),
+	SendPropFloat(SENDINFO(m_StopEmitTime), 0, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MinSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MaxSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_StartSize), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_EndSize), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_SpawnRadius), -1, SPROP_NOSCALE),
+	SendPropBool(SENDINFO(m_bEmit)),
+	SendPropInt(SENDINFO(m_nAttachment), 32 ),	
+	SendPropFloat(SENDINFO(m_Opacity), -1, SPROP_NOSCALE),
+	SendPropInt	(SENDINFO(m_bDamaged), 1, SPROP_UNSIGNED),
+	SendPropFloat(SENDINFO(m_flFlareScale), -1, SPROP_NOSCALE),
+END_SEND_TABLE()
+
+LINK_ENTITY_TO_CLASS( env_rockettrail, RocketTrail );
+
+BEGIN_DATADESC( RocketTrail )
+
+	DEFINE_FIELD( m_StartColor, FIELD_VECTOR ),
+	DEFINE_FIELD( m_EndColor, FIELD_VECTOR ),
+	DEFINE_FIELD( m_Opacity, FIELD_FLOAT ),
+	DEFINE_FIELD( m_SpawnRate, FIELD_FLOAT ),
+	DEFINE_FIELD( m_ParticleLifetime, FIELD_FLOAT ),
+	DEFINE_FIELD( m_StopEmitTime, FIELD_TIME ),
+	DEFINE_FIELD( m_MinSpeed, FIELD_FLOAT ),
+	DEFINE_FIELD( m_MaxSpeed, FIELD_FLOAT ),
+	DEFINE_FIELD( m_StartSize, FIELD_FLOAT ),
+	DEFINE_FIELD( m_EndSize, FIELD_FLOAT ),
+	DEFINE_FIELD( m_SpawnRadius, FIELD_FLOAT ),
+	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),
+	DEFINE_FIELD( m_nAttachment, FIELD_INTEGER ),
+	DEFINE_FIELD( m_bDamaged, FIELD_BOOLEAN ),
+	DEFINE_FIELD( m_flFlareScale, FIELD_FLOAT ),
+
+END_DATADESC()
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : 
+//-----------------------------------------------------------------------------
+RocketTrail::RocketTrail()
+{
+	m_SpawnRate = 10;
+	m_StartColor.GetForModify().Init(0.5, 0.5, 0.5);
+	m_EndColor.GetForModify().Init(0,0,0);
+	m_ParticleLifetime = 5;
+	m_StopEmitTime = 0; // Don't stop emitting particles
+	m_MinSpeed = 2;
+	m_MaxSpeed = 4;
+	m_StartSize = 35;
+	m_EndSize = 55;
+	m_SpawnRadius = 2;
+	m_bEmit = true;
+	m_nAttachment	= 0;
+	m_Opacity = 0.5f;
+	m_flFlareScale = 1.5;
+}
+
+//------------------------------------------------------------------------------
+// Purpose :
+// Input   :
+// Output  :
+//------------------------------------------------------------------------------
+void RocketTrail::SetEmit(bool bVal)
+{
+	m_bEmit = bVal;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : SmokeTrail*
+//-----------------------------------------------------------------------------
+RocketTrail* RocketTrail::CreateRocketTrail()
+{
+	CBaseEntity *pEnt = CreateEntityByName( "env_rockettrail" );
+	
+	if( pEnt != NULL )
+	{
+		RocketTrail *pTrail = dynamic_cast<RocketTrail*>(pEnt);
+		
+		if( pTrail != NULL )
+		{
+			pTrail->Activate();
+			return pTrail;
+		}
+		else
+		{
+			UTIL_Remove( pEnt );
+		}
+	}
+
+	return NULL;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Attach the smoke trail to an entity or point 
+// Input  : index - entity that has the attachment
+//			attachment - point to attach to
+//-----------------------------------------------------------------------------
+void RocketTrail::FollowEntity( CBaseEntity *pEntity, const char *pAttachmentName )
+{
+	// For attachments
+	if ( pAttachmentName && pEntity && pEntity->GetBaseAnimating() )
+	{
+		m_nAttachment = pEntity->GetBaseAnimating()->LookupAttachment( pAttachmentName );
+	}
+	else
+	{
+		m_nAttachment = 0;
+	}
+
+	BaseClass::FollowEntity( pEntity );
+}
+
+//==================================================
+// SporeTrail
+//==================================================
+
+IMPLEMENT_SERVERCLASS_ST( SporeTrail, DT_SporeTrail )
+	SendPropFloat	(SENDINFO(m_flSpawnRate), 8, 0, 1, 1024),
+	SendPropVector	(SENDINFO(m_vecEndColor), 8, 0, 0, 1),
+	SendPropFloat	(SENDINFO(m_flParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),
+	SendPropFloat	(SENDINFO(m_flStartSize), -1, SPROP_NOSCALE),
+	SendPropFloat	(SENDINFO(m_flEndSize), -1, SPROP_NOSCALE),
+	SendPropFloat	(SENDINFO(m_flSpawnRadius), -1, SPROP_NOSCALE),
+	SendPropBool	(SENDINFO(m_bEmit)),
+END_SEND_TABLE()
+
+LINK_ENTITY_TO_CLASS(env_sporetrail, SporeTrail);
+
+BEGIN_DATADESC( SporeTrail )
+
+	DEFINE_FIELD( m_vecEndColor, FIELD_VECTOR ),
+	DEFINE_FIELD( m_flSpawnRate, FIELD_FLOAT ),
+	DEFINE_FIELD( m_flParticleLifetime, FIELD_FLOAT ),
+	DEFINE_FIELD( m_flStartSize, FIELD_FLOAT ),
+	DEFINE_FIELD( m_flEndSize, FIELD_FLOAT ),
+	DEFINE_FIELD( m_flSpawnRadius, FIELD_FLOAT ),
+	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),
+
+END_DATADESC()
+
+SporeTrail::SporeTrail( void )
+{
+	m_vecEndColor.GetForModify().Init();
+
+	m_flSpawnRate			= 100.0f;
+	m_flParticleLifetime	= 1.0f;
+	m_flStartSize			= 1.0f;
+	m_flEndSize				= 0.0f;
+	m_flSpawnRadius			= 16.0f;
+	SetRenderColor( 255, 255, 255, 255 );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : SporeTrail*
+//-----------------------------------------------------------------------------
+SporeTrail* SporeTrail::CreateSporeTrail()
+{
+	CBaseEntity *pEnt = CreateEntityByName( SPORETRAIL_ENTITYNAME );
+	
+	if(pEnt)
+	{
+		SporeTrail *pSpore = dynamic_cast<SporeTrail*>(pEnt);
+		
+		if ( pSpore )
+		{
+			pSpore->Activate();
+			return pSpore;
+		}
+		else
+		{
+			UTIL_Remove( pEnt );
+		}
+	}
+
+	return NULL;
+}
+
+//==================================================
+// SporeExplosion
+//==================================================
+
+IMPLEMENT_SERVERCLASS_ST( SporeExplosion, DT_SporeExplosion )
+	SendPropFloat	(SENDINFO(m_flSpawnRate), 8, 0, 1, 1024),
+	SendPropFloat	(SENDINFO(m_flParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),
+	SendPropFloat	(SENDINFO(m_flStartSize), -1, SPROP_NOSCALE),
+	SendPropFloat	(SENDINFO(m_flEndSize), -1, SPROP_NOSCALE),
+	SendPropFloat	(SENDINFO(m_flSpawnRadius), -1, SPROP_NOSCALE),
+	SendPropBool	(SENDINFO(m_bEmit) ),
+	SendPropBool	(SENDINFO(m_bDontRemove) ),
+END_SEND_TABLE()
+
+LINK_ENTITY_TO_CLASS( env_sporeexplosion, SporeExplosion );
+
+BEGIN_DATADESC( SporeExplosion )
+
+	DEFINE_KEYFIELD( m_flSpawnRate, FIELD_FLOAT, "spawnrate" ),
+	DEFINE_FIELD( m_flParticleLifetime, FIELD_FLOAT ),
+	DEFINE_FIELD( m_flStartSize, FIELD_FLOAT ),
+	DEFINE_FIELD( m_flEndSize, FIELD_FLOAT ),
+	DEFINE_FIELD( m_flSpawnRadius, FIELD_FLOAT ),
+	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),
+	DEFINE_KEYFIELD( m_bDisabled, FIELD_BOOLEAN, "startdisabled" ),
+	DEFINE_FIELD( m_bDontRemove, FIELD_BOOLEAN ),
+
+	DEFINE_INPUTFUNC( FIELD_VOID, "Disable", InputDisable ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "Enable", InputEnable ),
+
+END_DATADESC()
+
+SporeExplosion::SporeExplosion( void )
+{
+	m_flSpawnRate			= 100.0f;
+	m_flParticleLifetime	= 1.0f;
+	m_flStartSize			= 1.0f;
+	m_flEndSize				= 0.0f;
+	m_flSpawnRadius			= 16.0f;
+	SetRenderColor( 255, 255, 255, 255 );
+	m_bEmit = true;
+	m_bDisabled = false;
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+void SporeExplosion::Spawn( void )
+{
+	BaseClass::Spawn();
+
+	m_bEmit = false;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : SporeExplosion*
+//-----------------------------------------------------------------------------
+SporeExplosion *SporeExplosion::CreateSporeExplosion()
+{
+	CBaseEntity *pEnt = CreateEntityByName( SPOREEXPLOSION_ENTITYNAME );
+	
+	if ( pEnt )
+	{
+		SporeExplosion *pSpore = dynamic_cast<SporeExplosion*>(pEnt);
+		
+		if ( pSpore )
+		{
+			pSpore->Activate();
+			return pSpore;
+		}
+		else
+		{
+			UTIL_Remove( pEnt );
+		}
+	}
+
+	return NULL;
+}
+
+void SporeExplosion::InputEnable( inputdata_t &inputdata )
+{
+	m_bDontRemove = true;
+	m_bDisabled = false;
+	m_bEmit = true;
+}
+
+void SporeExplosion::InputDisable( inputdata_t &inputdata )
+{
+	m_bDontRemove = true;
+	m_bDisabled = true;
+	m_bEmit = false;
+}
+
+BEGIN_DATADESC( CFireTrail )
+
+	DEFINE_FIELD( m_flLifetime, FIELD_FLOAT ),
+	DEFINE_FIELD( m_nAttachment, FIELD_INTEGER ),
+
+END_DATADESC()
+
+IMPLEMENT_SERVERCLASS_ST( CFireTrail, DT_FireTrail )
+	SendPropInt( SENDINFO( m_nAttachment ), 32 ),
+	SendPropFloat( SENDINFO( m_flLifetime ), 0, SPROP_NOSCALE ),
+END_SEND_TABLE()
+
+LINK_ENTITY_TO_CLASS( env_fire_trail, CFireTrail );
+
+void CFireTrail::Precache( void )
+{
+	PrecacheMaterial( "sprites/flamelet1" );
+	PrecacheMaterial( "sprites/flamelet2" );
+	PrecacheMaterial( "sprites/flamelet3" );
+	PrecacheMaterial( "sprites/flamelet4" );
+	PrecacheMaterial( "sprites/flamelet5" );
+	PrecacheMaterial( "particle/particle_smokegrenade" );
+	PrecacheMaterial( "particle/particle_noisesphere" );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Attach the smoke trail to an entity or point 
+// Input  : index - entity that has the attachment
+//			attachment - point to attach to
+//-----------------------------------------------------------------------------
+void CFireTrail::FollowEntity( CBaseEntity *pEntity, const char *pAttachmentName )
+{
+	// For attachments
+	if ( pAttachmentName && pEntity && pEntity->GetBaseAnimating() )
+	{
+		m_nAttachment = pEntity->GetBaseAnimating()->LookupAttachment( pAttachmentName );
+	}
+	else
+	{
+		m_nAttachment = 0;
+	}
+
+	BaseClass::FollowEntity( pEntity );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Create and return a new fire trail entity
+//-----------------------------------------------------------------------------
+CFireTrail *CFireTrail::CreateFireTrail( void )
+{
+	CBaseEntity *pEnt = CreateEntityByName( "env_fire_trail" );
+	
+	if ( pEnt )
+	{
+		CFireTrail *pTrail = dynamic_cast<CFireTrail*>(pEnt);
+		
+		if ( pTrail )
+		{
+			pTrail->Activate();
+			return pTrail;
+		}
+		else
+		{
+			UTIL_Remove( pEnt );
+		}
+	}
+
+	return NULL;	
+}
+
+
+//-----------------------------------------------------------------------------
+//Data table
+//-----------------------------------------------------------------------------
+IMPLEMENT_SERVERCLASS_ST(DustTrail, DT_DustTrail)
+	SendPropFloat(SENDINFO(m_SpawnRate), 8, 0, 1, 1024),
+	SendPropVector(SENDINFO(m_Color), 8, 0, 0, 1),
+	SendPropFloat(SENDINFO(m_ParticleLifetime), 16, SPROP_ROUNDUP, 0.1, 100),
+	SendPropFloat(SENDINFO(m_StopEmitTime), 0, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MinSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MaxSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MinDirectedSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_MaxDirectedSpeed), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_StartSize), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_EndSize), -1, SPROP_NOSCALE),
+	SendPropFloat(SENDINFO(m_SpawnRadius), -1, SPROP_NOSCALE),
+	SendPropBool(SENDINFO(m_bEmit) ),
+	SendPropFloat(SENDINFO(m_Opacity), -1, SPROP_NOSCALE),
+END_SEND_TABLE()
+
+LINK_ENTITY_TO_CLASS( env_dusttrail, DustTrail);
+
+BEGIN_DATADESC( DustTrail )
+
+	DEFINE_FIELD( m_Color, FIELD_VECTOR ),
+	DEFINE_KEYFIELD( m_Opacity, FIELD_FLOAT, "opacity" ),
+	DEFINE_KEYFIELD( m_SpawnRate, FIELD_FLOAT, "spawnrate" ),
+	DEFINE_KEYFIELD( m_ParticleLifetime, FIELD_FLOAT, "lifetime" ),
+	DEFINE_FIELD( m_StopEmitTime, FIELD_TIME ),
+	DEFINE_KEYFIELD( m_MinSpeed, FIELD_FLOAT, "minspeed" ),
+	DEFINE_KEYFIELD( m_MaxSpeed, FIELD_FLOAT, "maxspeed" ),
+	DEFINE_KEYFIELD( m_MinDirectedSpeed, FIELD_FLOAT, "mindirectedspeed" ),
+	DEFINE_KEYFIELD( m_MaxDirectedSpeed, FIELD_FLOAT, "maxdirectedspeed" ),
+	DEFINE_KEYFIELD( m_StartSize, FIELD_FLOAT, "startsize" ),
+	DEFINE_KEYFIELD( m_EndSize, FIELD_FLOAT, "endsize" ),
+	DEFINE_KEYFIELD( m_SpawnRadius, FIELD_FLOAT, "spawnradius" ),
+	DEFINE_FIELD( m_bEmit, FIELD_BOOLEAN ),
+	DEFINE_FIELD( m_nAttachment, FIELD_INTEGER ),
+
+END_DATADESC()
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : 
+//-----------------------------------------------------------------------------
+DustTrail::DustTrail()
+{
+	m_SpawnRate = 10;
+	m_Color.GetForModify().Init(0.5, 0.5, 0.5);
+	m_ParticleLifetime = 5;
+	m_StopEmitTime = 0; // Don't stop emitting particles
+	m_MinSpeed = 2;
+	m_MaxSpeed = 4;
+	m_MinDirectedSpeed = m_MaxDirectedSpeed = 0;
+	m_StartSize = 35;
+	m_EndSize = 55;
+	m_SpawnRadius = 2;
+	m_bEmit = true;
+	m_Opacity = 0.5f;
+}
+
+
+//-----------------------------------------------------------------------------
+// Parse data from a map file
+//-----------------------------------------------------------------------------
+bool DustTrail::KeyValue( const char *szKeyName, const char *szValue ) 
+{
+	if ( FStrEq( szKeyName, "color" ) )
+	{
+		color32 tmp;
+		UTIL_StringToColor32( &tmp, szValue );
+		m_Color.GetForModify().Init( tmp.r / 255.0f, tmp.g / 255.0f, tmp.b / 255.0f );
+		return true;
+	}
+
+	if ( FStrEq( szKeyName, "emittime" ) )
+	{
+		m_StopEmitTime = gpGlobals->curtime + atof( szValue );
+		return true;
+	}
+
+	return BaseClass::KeyValue( szKeyName, szValue );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose :
+// Input   :
+// Output  :
+//-----------------------------------------------------------------------------
+void DustTrail::SetEmit(bool bVal)
+{
+	m_bEmit = bVal;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : DustTrail*
+//-----------------------------------------------------------------------------
+DustTrail* DustTrail::CreateDustTrail()
+{
+	CBaseEntity *pEnt = CreateEntityByName(DUSTTRAIL_ENTITYNAME);
+	if(pEnt)
+	{
+		DustTrail *pDust = dynamic_cast<DustTrail*>(pEnt);
+		if(pDust)
+		{
+			pDust->Activate();
+			return pDust;
+		}
+		else
+		{
+			UTIL_Remove(pEnt);
+		}
+	}
+
+	return NULL;
+}