diff options
| author | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
|---|---|---|
| committer | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
| commit | 39ed87570bdb2f86969d4be821c94b722dc71179 (patch) | |
| tree | abc53757f75f40c80278e87650ea92808274aa59 /mp/src/game/client/particles_attractor.cpp | |
| download | source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.tar.xz source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.zip | |
First version of the SOurce SDK 2013
Diffstat (limited to 'mp/src/game/client/particles_attractor.cpp')
| -rw-r--r-- | mp/src/game/client/particles_attractor.cpp | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/mp/src/game/client/particles_attractor.cpp b/mp/src/game/client/particles_attractor.cpp new file mode 100644 index 00000000..2726bdac --- /dev/null +++ b/mp/src/game/client/particles_attractor.cpp @@ -0,0 +1,73 @@ +//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "particles_attractor.h"
+
+#include "tier0/memdbgon.h"
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input : ¢er -
+// "attractor" -
+// Output : CParticleAttractor
+//-----------------------------------------------------------------------------
+CParticleAttractor *CParticleAttractor::Create( const Vector ¢er, const char *pDebugName )
+{
+ CParticleAttractor *pSystem = new CParticleAttractor( pDebugName );
+
+ pSystem->SetAttractorOrigin( center );
+
+ return pSystem;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input : *pParticle -
+// timeDelta -
+//-----------------------------------------------------------------------------
+void CParticleAttractor::UpdateVelocity( SimpleParticle *pParticle, float timeDelta )
+{
+ float speed = VectorNormalize( pParticle->m_vecVelocity );
+ Vector offset;
+
+ Vector dir = ( m_vecAttractorOrigin - pParticle->m_Pos );
+ VectorNormalize( dir );
+
+ speed = clamp( (speed+speed*0.2f), 0.f, 1024.f );
+ pParticle->m_vecVelocity += dir * speed;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input : *pParticle -
+// timeDelta -
+// Output : float
+//-----------------------------------------------------------------------------
+float CParticleAttractor::UpdateScale( const SimpleParticle *pParticle )
+{
+ return ( ((float)pParticle->m_uchStartSize) * sin( M_PI * (pParticle->m_flLifetime / pParticle->m_flDieTime) ) );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input : *pParticle -
+// timeDelta -
+// Output : float
+//-----------------------------------------------------------------------------
+float CParticleAttractor::UpdateAlpha( const SimpleParticle *pParticle )
+{
+ return ( ((float)pParticle->m_uchStartAlpha/255.0f) * sin( M_PI * (pParticle->m_flLifetime / pParticle->m_flDieTime) ) );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input : &origin -
+//-----------------------------------------------------------------------------
+void CParticleAttractor::SetAttractorOrigin( const Vector &origin )
+{
+ m_vecAttractorOrigin = origin;
+}
|