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game/client/hl2/fx_bugbait.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "particlemgr.h"
+#include "particle_prototype.h"
+#include "particle_util.h"
+#include "particles_simple.h"
+#include "c_baseentity.h"
+#include "baseparticleentity.h"
+#include "engine/ivdebugoverlay.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+//==================================================
+// SporeSmokeEffect
+//==================================================
+
+class SporeSmokeEffect : public CSimpleEmitter
+{
+public:
+	SporeSmokeEffect( const char *pDebugName ) : CSimpleEmitter( pDebugName ) {}
+
+	static SporeSmokeEffect* Create( const char *pDebugName );
+
+	virtual void UpdateVelocity( SimpleParticle *pParticle, float timeDelta );
+	virtual float UpdateAlpha( const SimpleParticle *pParticle );
+
+private:
+	SporeSmokeEffect( const SporeSmokeEffect & );
+};
+
+
+SporeSmokeEffect* SporeSmokeEffect::Create( const char *pDebugName )
+{
+	return new SporeSmokeEffect( pDebugName );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *pParticle - 
+//			timeDelta - 
+// Output : float
+//-----------------------------------------------------------------------------
+float SporeSmokeEffect::UpdateAlpha( const SimpleParticle *pParticle )
+{
+	//return ( ((float)pParticle->m_uchStartAlpha/255.0f) * sin( M_PI * (pParticle->m_flLifetime / pParticle->m_flDieTime) ) );
+	return (pParticle->m_uchStartAlpha/255.0f) + ( (float)(pParticle->m_uchEndAlpha/255.0f) - (float)(pParticle->m_uchStartAlpha/255.0f) ) * (pParticle->m_flLifetime / pParticle->m_flDieTime);
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *pParticle - 
+//			timeDelta - 
+//-----------------------------------------------------------------------------
+void SporeSmokeEffect::UpdateVelocity( SimpleParticle *pParticle, float timeDelta )
+{
+}
+