From 39ed87570bdb2f86969d4be821c94b722dc71179 Mon Sep 17 00:00:00 2001
From: Joe Ludwig <joe@valvesoftware.com>
Date: Wed, 26 Jun 2013 15:22:04 -0700
Subject: First version of the SOurce SDK 2013

---
 mp/src/game/client/fx_trail.cpp | 78 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 mp/src/game/client/fx_trail.cpp

(limited to 'mp/src/game/client/fx_trail.cpp')

diff --git a/mp/src/game/client/fx_trail.cpp b/mp/src/game/client/fx_trail.cpp
new file mode 100644
index 00000000..7b0ba082
--- /dev/null
+++ b/mp/src/game/client/fx_trail.cpp
@@ -0,0 +1,78 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "fx_trail.h"
+
+C_ParticleTrail::C_ParticleTrail( void )
+{
+}
+
+C_ParticleTrail::~C_ParticleTrail( void )
+{
+	if ( m_pParticleMgr )
+	{
+		m_pParticleMgr->RemoveEffect( &m_ParticleEffect );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Gets the attachment point to spawn at
+//-----------------------------------------------------------------------------
+void C_ParticleTrail::GetAimEntOrigin( IClientEntity *pAttachedTo, Vector *pAbsOrigin, QAngle *pAbsAngles )
+{
+	C_BaseEntity *pEnt = pAttachedTo->GetBaseEntity();
+
+	if ( pEnt && (m_nAttachment > 0) )
+	{
+		pEnt->GetAttachment( m_nAttachment, *pAbsOrigin, *pAbsAngles );
+		return;
+	}
+
+	BaseClass::GetAimEntOrigin( pAttachedTo, pAbsOrigin, pAbsAngles );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Turn on the emission of particles 
+//-----------------------------------------------------------------------------
+void C_ParticleTrail::SetEmit( bool bEmit )
+{
+	m_bEmit = bEmit;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Set the spawn rate of the effect
+//-----------------------------------------------------------------------------
+void C_ParticleTrail::SetSpawnRate( float rate )
+{
+	m_SpawnRate = rate;
+	m_ParticleSpawn.Init( rate );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: First sent down from the server
+//-----------------------------------------------------------------------------
+void C_ParticleTrail::OnDataChanged(DataUpdateType_t updateType)
+{
+	C_BaseEntity::OnDataChanged(updateType);
+
+	if ( updateType == DATA_UPDATE_CREATED )
+	{
+		Start( ParticleMgr(), NULL );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void C_ParticleTrail::Start( CParticleMgr *pParticleMgr, IPrototypeArgAccess *pArgs )
+{
+	if( pParticleMgr->AddEffect( &m_ParticleEffect, this ) == false )
+		return;
+
+	m_pParticleMgr = pParticleMgr;
+}
+
-- 
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