1HEADmaster

1 files changed, 306 insertions, 0 deletions

diff --git a/game/client/hl2/c_rotorwash.cpp b/game/client/hl2/c_rotorwash.cpp
new file mode 100644
index 0000000..439f18a
--- /dev/null
+++ b/game/client/hl2/c_rotorwash.cpp
@@ -0,0 +1,306 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "cbase.h"
+#include "particlemgr.h"
+#include "particle_prototype.h"
+#include "particle_util.h"
+#include "c_te_particlesystem.h"
+#include "fx.h"
+#include "fx_quad.h"
+#include "clienteffectprecachesystem.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+// ==============================================
+//  Rotorwash particle emitter
+// ==============================================
+
+#ifndef _XBOX
+
+class WashEmitter : public CSimpleEmitter
+{
+public:
+	
+	WashEmitter( const char *pDebugName ) : CSimpleEmitter( pDebugName ) {}
+
+	static WashEmitter *Create( const char *pDebugName )
+	{
+		return new WashEmitter( pDebugName );
+	}
+
+	void UpdateVelocity( SimpleParticle *pParticle, float timeDelta )
+	{
+		// Float up when lifetime is half gone.
+		pParticle->m_vecVelocity[ 2 ] += 64 * timeDelta;
+
+		// FIXME: optimize this....
+		pParticle->m_vecVelocity *= ExponentialDecay( 0.8, 0.05, timeDelta );
+	}
+
+	virtual	float UpdateRoll( SimpleParticle *pParticle, float timeDelta )
+	{
+		pParticle->m_flRoll += pParticle->m_flRollDelta * timeDelta;
+		
+		pParticle->m_flRollDelta += pParticle->m_flRollDelta * ( timeDelta * -2.0f );
+
+		//Cap the minimum roll
+		if ( fabs( pParticle->m_flRollDelta ) < 0.5f )
+		{
+			pParticle->m_flRollDelta = ( pParticle->m_flRollDelta > 0.0f ) ? 0.5f : -0.5f;
+		}
+
+		return pParticle->m_flRoll;
+	}
+
+	virtual float UpdateAlpha( const SimpleParticle *pParticle )
+	{
+		return ( ((float)pParticle->m_uchStartAlpha/255.0f) * sin( M_PI * (pParticle->m_flLifetime / pParticle->m_flDieTime) ) );
+	}
+
+private:
+	WashEmitter( const WashEmitter & );
+};
+
+#endif // !_XBOX
+
+// ==============================================
+//  Rotorwash entity
+// ==============================================
+
+#define	ROTORWASH_THINK_INTERVAL	0.1f
+
+class C_RotorWashEmitter : public C_BaseEntity
+{
+public:
+
+	DECLARE_CLASS( C_RotorWashEmitter, C_BaseEntity );
+	DECLARE_CLIENTCLASS();
+
+	C_RotorWashEmitter( void );
+
+	virtual void OnDataChanged( DataUpdateType_t updateType );
+	virtual void ClientThink( void );
+	
+protected:
+
+	float	m_flAltitude;
+
+	PMaterialHandle m_hWaterMaterial[2];
+
+#ifndef _XBOX
+	void InitSpawner( void );
+	CSmartPtr<WashEmitter>	m_pSimple;
+#endif // !XBOX
+};
+
+IMPLEMENT_CLIENTCLASS_DT( C_RotorWashEmitter, DT_RotorWashEmitter, CRotorWashEmitter)
+	RecvPropFloat(RECVINFO(m_flAltitude)),
+END_RECV_TABLE()
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+C_RotorWashEmitter::C_RotorWashEmitter( void )
+{
+#ifndef _XBOX
+	m_pSimple =  NULL;
+	m_hWaterMaterial[0] = NULL;
+	m_hWaterMaterial[1] = NULL;
+#endif // !_XBOX
+}
+
+#ifndef _XBOX
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void C_RotorWashEmitter::InitSpawner( void )
+{
+	if ( m_pSimple.IsValid() )
+		return;
+
+	m_pSimple = WashEmitter::Create( "wash" );
+	m_pSimple->SetNearClip( 128, 256 );
+}
+#endif // !XBOX
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : updateType - 
+//-----------------------------------------------------------------------------
+void C_RotorWashEmitter::OnDataChanged( DataUpdateType_t updateType )
+{
+	BaseClass::OnDataChanged( updateType );
+
+	if ( updateType == DATA_UPDATE_CREATED )
+	{
+		SetNextClientThink( gpGlobals->curtime + ROTORWASH_THINK_INTERVAL );
+
+#ifndef _XBOX
+		InitSpawner();
+#endif // !XBOX
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void C_RotorWashEmitter::ClientThink( void )
+{
+	SetNextClientThink( gpGlobals->curtime + ROTORWASH_THINK_INTERVAL );
+
+	trace_t	tr;
+	UTIL_TraceLine( GetAbsOrigin(), GetAbsOrigin()+(Vector(0, 0, -1024)), (MASK_SOLID_BRUSHONLY|CONTENTS_WATER|CONTENTS_SLIME), NULL, COLLISION_GROUP_NONE, &tr );
+
+	if ( /*!m_bIgnoreSolid && */(tr.fraction == 1.0f || tr.startsolid || tr.allsolid) )
+		return;
+
+	// If we hit the skybox, don't do it either
+	if ( tr.surface.flags & SURF_SKY )
+		return;
+
+	float heightScale = RemapValClamped( tr.fraction * 1024, 512, 1024, 1.0f, 0.0f );
+
+	Vector vecDustColor;
+
+	if ( tr.contents & CONTENTS_WATER )
+	{
+		vecDustColor.x = 0.8f;
+		vecDustColor.y = 0.8f;
+		vecDustColor.z = 0.75f;
+	}
+	else if ( tr.contents & CONTENTS_SLIME )
+	{
+		vecDustColor.x = 0.6f;
+		vecDustColor.y = 0.5f;
+		vecDustColor.z = 0.15f;
+	}
+	else
+	{
+		vecDustColor.x = 0.35f;
+		vecDustColor.y = 0.3f;
+		vecDustColor.z = 0.25f;
+	}
+
+#ifndef _XBOX
+
+	InitSpawner();
+
+	if ( m_pSimple.IsValid() == false )
+		return;
+
+	m_pSimple->SetSortOrigin( GetAbsOrigin() );
+
+	PMaterialHandle	*hMaterial;
+	
+	// Cache and set our material based on the surface we're over (ie. water)
+	if ( tr.contents & (CONTENTS_WATER|CONTENTS_SLIME) )
+	{
+		if ( m_hWaterMaterial[0] == NULL )
+		{
+			m_hWaterMaterial[0] = m_pSimple->GetPMaterial("effects/splash1");
+			m_hWaterMaterial[1] = m_pSimple->GetPMaterial("effects/splash2");
+		}
+		hMaterial = m_hWaterMaterial;
+	}
+	else
+	{
+		hMaterial = g_Mat_DustPuff;
+	}
+
+#endif // !XBOX
+
+	// If we're above water, make ripples
+	if ( tr.contents & (CONTENTS_WATER|CONTENTS_SLIME) )
+	{
+		float flScale = random->RandomFloat( 7.5f, 8.5f );
+
+		Vector	color = Vector( 0.8f, 0.8f, 0.75f );
+		Vector startPos = tr.endpos + Vector(0,0,8);
+		Vector endPos = tr.endpos + Vector(0,0,-64);
+
+		if ( tr.fraction < 1.0f )
+		{
+			//Add a ripple quad to the surface
+			FX_AddQuad( tr.endpos + ( tr.plane.normal * 0.5f ), 
+						tr.plane.normal, 
+						64.0f * flScale, 
+						128.0f * flScale, 
+						0.8f,
+						0.75f * heightScale, 
+						0.0f,
+						0.75f,
+						random->RandomFloat( 0, 360 ),
+						random->RandomFloat( -2.0f, 2.0f ),
+						vecDustColor, 
+						0.2f,  
+						"effects/splashwake3",
+						(FXQUAD_BIAS_SCALE|FXQUAD_BIAS_ALPHA) );
+		}
+	}
+
+#ifndef _XBOX
+	int		numRingSprites = 32;
+	float	yaw = random->RandomFloat( 0, 2*M_PI ); // Randomly placed on the unit circle
+	float	yawIncr = (2*M_PI) / numRingSprites;
+	Vector	vecForward;
+	Vector	offset;
+	SimpleParticle	*pParticle;
+
+	// Draw the rings
+	for ( int i = 0; i < numRingSprites; i++ )
+	{
+		// Get our x,y on the unit circle
+		SinCos( yaw, &vecForward.y, &vecForward.x );
+		
+		// Increment ahead
+		yaw += yawIncr;
+
+		// @NOTE toml (3-28-07): broke out following expression because vc2005 optimizer was screwing up in presence of SinCos inline assembly. Would also
+		// go away if offset were referenced below as in the AddLineOverlay()
+		//offset = ( RandomVector( -4.0f, 4.0f ) + tr.endpos ) + ( vecForward * 128.0f );
+
+		offset = vecForward * 128.0f;
+		offset += tr.endpos + RandomVector( -4.0f, 4.0f );
+
+
+		pParticle = (SimpleParticle *) m_pSimple->AddParticle( sizeof(SimpleParticle), hMaterial[random->RandomInt(0,1)], offset );
+
+		if ( pParticle != NULL )
+		{
+			pParticle->m_flLifetime = 0.0f;
+			pParticle->m_flDieTime	= random->RandomFloat( 0.25f, 1.0f );
+
+			pParticle->m_vecVelocity = vecForward * random->RandomFloat( 1000, 1500 );
+		
+			#if __EXPLOSION_DEBUG
+			debugoverlay->AddLineOverlay( m_vecOrigin, m_vecOrigin + pParticle->m_vecVelocity, 255, 0, 0, false, 3 );
+			#endif
+
+			if ( tr.contents & CONTENTS_SLIME )
+			{
+				vecDustColor.x = random->RandomFloat( 0.4f, 0.6f );
+				vecDustColor.y = random->RandomFloat( 0.3f, 0.5f );
+				vecDustColor.z = random->RandomFloat( 0.1f, 0.2f );
+			}
+
+			pParticle->m_uchColor[0] = vecDustColor.x * 255.0f;
+			pParticle->m_uchColor[1] = vecDustColor.y * 255.0f;
+			pParticle->m_uchColor[2] = vecDustColor.z * 255.0f;
+
+			pParticle->m_uchStartSize	= random->RandomInt( 16, 64 );
+			pParticle->m_uchEndSize		= pParticle->m_uchStartSize * 4;
+
+			pParticle->m_uchStartAlpha	= random->RandomFloat( 16, 32 ) * heightScale;
+			pParticle->m_uchEndAlpha	= 0;
+			
+			pParticle->m_flRoll			= random->RandomInt( 0, 360 );
+			pParticle->m_flRollDelta	= random->RandomFloat( -16.0f, 16.0f );
+		}
+	}
+#endif // !XBOX
+}