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game/client/fx_water.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef FX_WATER_H
+#define FX_WATER_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "particles_simple.h"
+#include "fx.h"
+
+#include "tier0/memdbgon.h"
+
+class CSplashParticle : public CSimpleEmitter
+{
+public:
+	
+	CSplashParticle( const char *pDebugName ) : CSimpleEmitter( pDebugName ), m_bUseClipHeight( false ) {}
+	
+	// Create
+	static CSplashParticle *Create( const char *pDebugName )
+	{
+		return new CSplashParticle( pDebugName );
+	}
+
+	// Roll
+	virtual	float UpdateRoll( SimpleParticle *pParticle, float timeDelta );
+
+	// Velocity
+	virtual void UpdateVelocity( SimpleParticle *pParticle, float timeDelta );
+
+	// Alpha
+	virtual float UpdateAlpha( const SimpleParticle *pParticle );
+
+	void SetClipHeight( float flClipHeight );
+
+	// Simulation
+	void SimulateParticles( CParticleSimulateIterator *pIterator );
+
+private:
+	CSplashParticle( const CSplashParticle & );
+	
+	float	m_flClipHeight;
+	bool	m_bUseClipHeight;
+};
+
+class WaterDebrisEffect : public CSimpleEmitter
+{
+public:
+	WaterDebrisEffect( const char *pDebugName ) : CSimpleEmitter( pDebugName ) {}
+
+	static WaterDebrisEffect* Create( const char *pDebugName );
+
+	virtual float UpdateAlpha( const SimpleParticle *pParticle );
+
+private:
+	WaterDebrisEffect( const WaterDebrisEffect & );
+};
+
+extern void FX_WaterRipple( const Vector &origin, float scale, Vector *pColor, float flLifetime=1.5, float flAlpha=1 );
+extern void FX_GunshotSplash( const Vector &origin, const Vector &normal, float scale );
+extern void FX_GunshotSlimeSplash( const Vector &origin, const Vector &normal, float scale );
+
+//-----------------------------------------------------------------------------
+// Purpose: Retrieve and alter lighting for splashes
+// Input  : position - point to check
+//			*color - tint of the lighting at this point
+//			*luminosity - adjusted luminosity at this point
+//-----------------------------------------------------------------------------
+inline void FX_GetSplashLighting( Vector position, Vector *color, float *luminosity )
+{
+	// Compute our lighting at our position
+	Vector totalColor = engine->GetLightForPoint( position, true );
+	
+	// Get our lighting information
+	UTIL_GetNormalizedColorTintAndLuminosity( totalColor, color, luminosity );
+	
+	// Fake a specular highlight (too dim otherwise)
+	if ( luminosity != NULL )
+	{
+		*luminosity = MIN( 1.0f, (*luminosity) * 4.0f );
+		
+		// Clamp so that we never go completely translucent
+		if ( *luminosity < 0.25f )
+		{
+			*luminosity = 0.25f;
+		}
+	}
+	
+	// Only take a quarter of the tint, mostly we want to be white
+	if ( color != NULL )
+	{
+		(*color) = ( (*color) * 0.25f ) + Vector( 0.75f, 0.75f, 0.75f );
+	}
+}
+
+#include "tier0/memdbgoff.h"
+
+#endif // FX_WATER_H