C++ TimedEvent::NextEvent方法代码示例

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : fTimeDelta - 
//-----------------------------------------------------------------------------
void C_Plasma::Update( void )
{
	//Update all our parts
	UpdateScale();
	UpdateAnimation();
	UpdateFlames();

	if (m_flScaleRegister > 0.1)
	{
		float tempDelta = gpGlobals->frametime;
		while( m_tDecalSpawn.NextEvent( tempDelta ) )
		{
			// Add decal to floor
			C_BaseEntity *ent = cl_entitylist->GetEnt( 0 );
			if ( ent )
			{
				int index = decalsystem->GetDecalIndexForName( "PlasmaGlowFade" );
				if ( index >= 0 )
				{
					effects->DecalShoot( index, 0, ent->GetModel(), ent->GetAbsOrigin(), ent->GetAbsAngles(), GetAbsOrigin(), 0, 0 );
				}
			}
		}
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : fTimeDelta - 
//-----------------------------------------------------------------------------
void C_SmokeStack::Update(float fTimeDelta)
{
    if (!m_pParticleMgr)
    {
        assert(false);
        return;
    }

    // Don't spawn particles unless we're visible.
    if (m_bEmit && (m_ParticleEffect.WasDrawnPrevFrame() || m_ParticleEffect.GetAlwaysSimulate()))
    {
        // Add new particles.																	
        Vector forward, right, up;
        AngleVectors(GetAbsAngles(), &forward, &right, &up);

        float tempDelta = fTimeDelta;
        while (m_ParticleSpawn.NextEvent(tempDelta))
        {
            int iRandomFrame = random->RandomInt(0, m_iMaxFrames);

            iRandomFrame = 0;

            // Make a new particle.
            if (SmokeStackParticle *pParticle = (SmokeStackParticle*) m_ParticleEffect.AddParticle(sizeof(SmokeStackParticle), m_MaterialHandle[iRandomFrame]))
            {
                float angle = FRand(0, 2.0f*M_PI_F);

                pParticle->m_Pos = GetAbsOrigin() +
                    right * (cos(angle) * m_flBaseSpread) +
                    forward * (sin(angle) * m_flBaseSpread);

                pParticle->m_Velocity =
                    FRand(-m_SpreadSpeed, m_SpreadSpeed) * right +
                    FRand(-m_SpreadSpeed, m_SpreadSpeed) * forward +
                    m_Speed * up;

                pParticle->m_vAccel = m_vWind;
                pParticle->m_Lifetime = 0;
                pParticle->m_flAngle = 0.0f;

                pParticle->m_flRollDelta = random->RandomFloat(-m_flRollSpeed, m_flRollSpeed);
                pParticle->m_flSortPos = pParticle->m_Pos.z;
            }
        }
    }

    // Setup the twist matrix.
    float flTwist = (m_flTwist * (M_PI_F * 2.f) / 360.0f) * Helper_GetFrameTime();
    if ((m_bTwist = !!flTwist))
    {
        m_TwistMat[0][0] = cos(flTwist);
        m_TwistMat[0][1] = sin(flTwist);
        m_TwistMat[1][0] = -sin(flTwist);
        m_TwistMat[1][1] = cos(flTwist);
    }

    QueueLightParametersInRenderer();
}

//-----------------------------------------------------------------------------
// Purpose:
// Input  : fTimeDelta -
//-----------------------------------------------------------------------------
void C_EntityParticleTrail::Update( float fTimeDelta )
{
    float tempDelta = fTimeDelta;
    studiohdr_t *pStudioHdr;
    mstudiohitboxset_t *set;
    matrix3x4_t	*hitboxbones[MAXSTUDIOBONES];

    C_BaseEntity *pMoveParent = GetMoveParent();
    if ( !pMoveParent )
        return;

    C_BaseAnimating *pAnimating = pMoveParent->GetBaseAnimating();
    if (!pAnimating)
        goto trailNoHitboxes;

    if ( !pAnimating->HitboxToWorldTransforms( hitboxbones ) )
        goto trailNoHitboxes;

    pStudioHdr = modelinfo->GetStudiomodel( pAnimating->GetModel() );
    if (!pStudioHdr)
        goto trailNoHitboxes;

    set = pStudioHdr->pHitboxSet( pAnimating->GetHitboxSet() );
    if ( !set )
        goto trailNoHitboxes;

    //Add new particles
    while ( m_teParticleSpawn.NextEvent( tempDelta ) )
    {
        int nHitbox = random->RandomInt( 0, set->numhitboxes - 1 );
        mstudiobbox_t *pBox = set->pHitbox(nHitbox);

        AddParticle( tempDelta, pBox->bbmin, pBox->bbmax, *hitboxbones[pBox->bone] );
    }
    return;

trailNoHitboxes:
    while ( m_teParticleSpawn.NextEvent( tempDelta ) )
    {
        AddParticle( tempDelta, pMoveParent->CollisionProp()->OBBMins(), pMoveParent->CollisionProp()->OBBMaxs(), pMoveParent->EntityToWorldTransform() );
    }
}

//-----------------------------------------------------------------------------
// Purpose: Client-side think function for the entity
//-----------------------------------------------------------------------------
void C_Sparkler::ClientThink( void )
{
	// We must have a valid emitter
	if ( m_hEmitter == NULL )
		return;

	// We must be allowed to emit particles by the server
	if ( m_bEmit == false )
		return;

	SimpleParticle *pParticle;

	float curTime = gpGlobals->frametime;

	// Add as many particles as required this frame
	while ( m_tParticleTimer.NextEvent( curTime ) )
	{
		// Create the particle
		pParticle = m_hEmitter->AddSimpleParticle( m_hMaterial, GetAbsOrigin() );

		if ( pParticle == NULL )
			return;

		// Setup our size
		pParticle->m_uchStartSize = (unsigned char) m_flScale;
		pParticle->m_uchEndSize = 0;

		// Setup our roll
		pParticle->m_flRoll = random->RandomFloat( 0, 2*M_PI );
		pParticle->m_flRollDelta = random->RandomFloat( -DEG2RAD( 180 ), DEG2RAD( 180 ) );

		// Set our color
		pParticle->m_uchColor[0] = 255;
		pParticle->m_uchColor[1] = 255;
		pParticle->m_uchColor[2] = 255;

		// Setup our alpha values
		pParticle->m_uchStartAlpha = 255;
		pParticle->m_uchEndAlpha = 255;
		
		// Obtain a random direction
		Vector velocity = RandomVector( -1.0f, 1.0f );
		VectorNormalize( velocity );

		// Obtain a random speed
		float speed = random->RandomFloat( 4.0f, 8.0f ) * m_flScale;

		// Set our velocity
		pParticle->m_vecVelocity = velocity * speed;

		// Die in a short range of time
		pParticle->m_flDieTime = random->RandomFloat( 0.25f, 0.5f );
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void C_EntityFlame::Simulate( void )
{
	if (m_bAttachedToHitboxes)
	{
		UpdateHitBoxFlames();
	}
	else
	{
		m_pEmitter->SetSortOrigin( GetAbsOrigin() );

		float tempDelta = gpGlobals->frametime;
		
		SimpleParticle *pParticle;

		Vector	offset;

		while( m_ParticleSpawn.NextEvent( tempDelta ) )
		{
			offset.Random( -m_flSize, m_flSize );

			pParticle = (SimpleParticle *) m_pEmitter->AddParticle( sizeof(SimpleParticle), m_MaterialHandle[random->RandomInt( 0, NUM_FLAMELETS-1 )], GetAbsOrigin() + offset );

			if ( pParticle )
			{
				pParticle->m_flDieTime	= 0.4f;
				pParticle->m_flLifetime	= 0.0f;
				
				pParticle->m_flRoll		= random->RandomInt( 0, 360 );
				pParticle->m_flRollDelta= random->RandomFloat( -2.0f, 2.0f );
				
				pParticle->m_uchStartSize	= random->RandomInt( 4, 6 );
				pParticle->m_uchEndSize		= random->RandomInt( 12, 16 );
				pParticle->m_uchStartAlpha	= 255;
				pParticle->m_uchEndAlpha	= 0;
				
				int	cScale = 255;//random->RandomInt( 192, 255 );
				pParticle->m_uchColor[0]	= cScale;
				pParticle->m_uchColor[1]	= cScale;
				pParticle->m_uchColor[2]	= cScale;
				
				Vector dir;

				dir.x = random->RandomFloat( -1.0f, 1.0f );
				dir.y = random->RandomFloat( -1.0f, 1.0f );
				dir.z = random->RandomFloat( 0.5f, 1.0f );

				pParticle->m_vecVelocity	= dir * random->RandomInt( 4, 32 );
				pParticle->m_vecVelocity[2] = random->RandomInt( 32, 64 );
			}
		}
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : flPerc - 
//-----------------------------------------------------------------------------
void C_MortarShell::AddRisingParticles( float flPerc )
{
	SimpleParticle *sParticle;

	Vector offset;
	float radius = m_flRadius * 0.25f * flPerc;

	float val = RemapValClamped( gpGlobals->curtime, m_flStarttime, m_flStarttime + m_flLifespan, 0.0f, 1.0f );

	float flCur = gpGlobals->frametime;

	// Anime ground effects
	while ( m_ParticleEvent.NextEvent( flCur ) )
	{
		offset.x = random->RandomFloat( -radius, radius );
		offset.y = random->RandomFloat( -radius, radius );
		offset.z = random->RandomFloat( -8.0f, 8.0f );

		offset += GetAbsOrigin();

		sParticle = (SimpleParticle *) m_pEmitter->AddParticle( sizeof(SimpleParticle), m_pEmitter->GetPMaterial( "effects/spark" ), offset );
		
		if ( sParticle == NULL )
			return;

		sParticle->m_vecVelocity = Vector( Helper_RandomFloat( -4.0f, 4.0f ), Helper_RandomFloat( -4.0f, 4.0f ), Helper_RandomFloat( 32.0f, 256.0f ) * Bias( val, 0.25f ) );
		
		sParticle->m_uchStartSize	= random->RandomFloat( 4, 8 ) * flPerc;

		sParticle->m_flDieTime = random->RandomFloat( 0.5f, 1.0f );
		
		sParticle->m_flLifetime		= 0.0f;

		sParticle->m_flRoll			= Helper_RandomInt( 0, 360 );

		float alpha = 255 * flPerc;

		sParticle->m_flRollDelta	= Helper_RandomFloat( -8.0f * flPerc, 8.0f * flPerc );
		sParticle->m_uchColor[0]	= alpha;
		sParticle->m_uchColor[1]	= alpha;
		sParticle->m_uchColor[2]	= alpha;
		sParticle->m_uchStartAlpha	= alpha;
		sParticle->m_uchEndAlpha	= 0;
		sParticle->m_uchEndSize		= 0;
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : flPerc - 
//-----------------------------------------------------------------------------
void C_MortarShell::AddExplodingParticles( float flPerc )
{
	SimpleParticle *sParticle;

	Vector offset;
	float radius = 48.0f * flPerc;

	float flCur = gpGlobals->frametime;

	// Anime ground effects
	while ( m_ParticleEvent.NextEvent( flCur ) )
	{
		offset.x = random->RandomFloat( -radius, radius );
		offset.y = random->RandomFloat( -radius, radius );
		offset.z = random->RandomFloat( -8.0f, 8.0f );

		offset += GetAbsOrigin();

		sParticle = (SimpleParticle *) m_pEmitter->AddParticle( sizeof(SimpleParticle), m_pEmitter->GetPMaterial( "effects/spark" ), offset );
		
		if ( sParticle == NULL )
			return;

		sParticle->m_vecVelocity = RandomVector( -1.0f, 1.0f ) + Vector( 0, 0, 1 );
		sParticle->m_vecVelocity *= ( 750.0f * flPerc );
		
		sParticle->m_uchStartSize	= random->RandomFloat( 2, 4 ) * flPerc;

		sParticle->m_flDieTime = random->RandomFloat( 0.25f, 0.5f );
		
		sParticle->m_flLifetime		= 0.0f;

		sParticle->m_flRoll			= Helper_RandomInt( 0, 360 );

		float alpha = 255 * flPerc;

		sParticle->m_flRollDelta	= Helper_RandomFloat( -8.0f * flPerc, 8.0f * flPerc );
		sParticle->m_uchColor[0]	= alpha;
		sParticle->m_uchColor[1]	= alpha;
		sParticle->m_uchColor[2]	= alpha;
		sParticle->m_uchStartAlpha	= alpha;
		sParticle->m_uchEndAlpha	= 0;
		sParticle->m_uchEndSize		= 0;
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : fTimeDelta - 
//-----------------------------------------------------------------------------
void C_ExtinguisherJet::Update( float fTimeDelta )
{
	if ( m_bEmit == false )
		return;

	C_BasePlayer *player = C_BasePlayer::GetLocalPlayer();

	if ( m_bUseMuzzlePoint )
	{
		C_BaseViewModel *vm = player ? player->GetViewModel( 0 ) : NULL;

		if ( vm )
		{
			int iAttachment = vm->LookupAttachment( "muzzle" );
			Vector origin;
			QAngle angles;
			vm->GetAttachment( iAttachment, origin, angles );

			Assert( !GetMoveParent() );
			SetLocalOrigin( origin );
			SetLocalAngles( angles );
		}
	}

	trace_t	tr;
	Vector	shotDir, vRight, vUp;

	AngleVectors( GetAbsAngles(), &shotDir, &vRight, &vUp );
	
	//FIXME: Muzzle point is incorrect on the model!
	if ( m_bUseMuzzlePoint )
	{
		shotDir.Negate();
	}

	Vector	endPoint = GetAbsOrigin() + ( shotDir * 150.0f );
	
	UTIL_TraceLine( GetAbsOrigin(), endPoint, MASK_SHOT, NULL, COLLISION_GROUP_NONE, &tr );

	bool	hitWall = ( tr.fraction < 1.0f );

	//Add normal jet
	if ( m_pEmitter.IsValid() )
	{
		SimpleParticle	*pParticle;

		m_pEmitter->SetSortOrigin( GetAbsOrigin() );
	
		float tempDelta = fTimeDelta;
		
		//FIXME: All particles need to be within this loop
		while( m_ParticleSpawn.NextEvent( tempDelta ) )
		{
			pParticle = (SimpleParticle *) m_pEmitter->AddParticle( sizeof(SimpleParticle), m_MaterialHandle, GetAbsOrigin() );

			if ( pParticle )
			{
				pParticle->m_flDieTime	= 0.2f;
				pParticle->m_flLifetime	= 0.0f;
				
				pParticle->m_flRoll		= random->RandomInt( 0, 360 );
				pParticle->m_flRollDelta= random->RandomFloat( -4.0f, 4.0f );
				
				pParticle->m_uchStartSize	= 1;
				pParticle->m_uchEndSize		= random->RandomInt( 32, 48 );
				pParticle->m_uchStartAlpha	= random->RandomInt( 128, 164 );
				pParticle->m_uchEndAlpha	= 0;
				
				int	cScale = random->RandomInt( 192, 255 );
				pParticle->m_uchColor[0]	= cScale;
				pParticle->m_uchColor[1]	= cScale;
				pParticle->m_uchColor[2]	= cScale;

				Vector	dir;
				QAngle  ofsAngles;

				ofsAngles.Random( -8.0f, 8.0f );
				ofsAngles += GetAbsAngles();

				AngleVectors( ofsAngles, &dir );

				if ( m_bUseMuzzlePoint )
				{
					dir.Negate();
				}

				pParticle->m_vecVelocity	= dir * random->RandomInt( 400, 800 );
			}

			//Add muzzle effect
			pParticle = (SimpleParticle *) m_pEmitter->AddParticle( sizeof(SimpleParticle), m_MaterialHandle, GetAbsOrigin() );

			if ( pParticle )
			{
				pParticle->m_flDieTime	= 0.1f;
				pParticle->m_flLifetime	= 0.0f;
//.........这里部分代码省略.........

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void C_HopwireExplosion::AddParticles( void )
{
	// Make sure the emitters are setup properly
	if ( SetupEmitters() == false )
		return;

	float tempDelta = gpGlobals->frametime;
	while( m_ParticleTimer.NextEvent( tempDelta ) )
	{	
		// ========================
		// Attracted dust particles
		// ========================

		// Update our attractor point
		m_pAttractorEmitter->SetAttractorOrigin( GetRenderOrigin() );

		Vector offset;
		SimpleParticle *sParticle;

		offset = GetRenderOrigin() + RandomVector( -256.0f, 256.0f );

		sParticle = (SimpleParticle *) m_pAttractorEmitter->AddParticle( sizeof(SimpleParticle), g_Mat_Fleck_Cement[0], offset );

		if ( sParticle == NULL )
			return;
		
		sParticle->m_vecVelocity	= Vector(0,0,8);
		sParticle->m_flDieTime		= 0.5f;
		sParticle->m_flLifetime		= 0.0f;

		sParticle->m_flRoll			= Helper_RandomInt( 0, 360 );
		sParticle->m_flRollDelta	= 1.0f;

		float alpha = random->RandomFloat( 128.0f, 200.0f );

		sParticle->m_uchColor[0]	= alpha;
		sParticle->m_uchColor[1]	= alpha;
		sParticle->m_uchColor[2]	= alpha;
		sParticle->m_uchStartAlpha	= alpha;
		sParticle->m_uchEndAlpha	= alpha;

		sParticle->m_uchStartSize	= random->RandomInt( 1, 4 );
		sParticle->m_uchEndSize		= 0;

		// ========================
		// Core effects
		// ========================

		// Reset our sort origin
		m_pSimpleEmitter->SetSortOrigin( GetRenderOrigin() );

		// Base of the core effect
		sParticle = (SimpleParticle *) m_pSimpleEmitter->AddParticle( sizeof(SimpleParticle), m_pSimpleEmitter->GetPMaterial( "effects/strider_muzzle" ), GetRenderOrigin() );

		if ( sParticle == NULL )
			return;
		
		sParticle->m_vecVelocity	= vec3_origin;
		sParticle->m_flDieTime		= 0.2f;
		sParticle->m_flLifetime		= 0.0f;

		sParticle->m_flRoll			= Helper_RandomInt( 0, 360 );
		sParticle->m_flRollDelta	= 4.0f;

		alpha = random->RandomInt( 32, 200 );

		sParticle->m_uchColor[0]	= alpha;
		sParticle->m_uchColor[1]	= alpha;
		sParticle->m_uchColor[2]	= alpha;
		sParticle->m_uchStartAlpha	= 0;
		sParticle->m_uchEndAlpha	= alpha;

		sParticle->m_uchStartSize	= 255;
		sParticle->m_uchEndSize		= 0;

		// Make sure we encompass the complete particle here!
		m_pSimpleEmitter->SetParticleCullRadius( sParticle->m_uchEndSize );

		// =========================
		// Dust ring effect
		// =========================

		if ( random->RandomInt( 0, 5 ) != 1 )
			return;

		Vector vecDustColor;
		vecDustColor.x = 0.35f;
		vecDustColor.y = 0.3f;
		vecDustColor.z = 0.25f;

		Vector	color;

		int	numRingSprites = 8;
		float yaw;
		Vector forward, vRight, vForward;

		vForward = Vector( 0, 1, 0 );
//.........这里部分代码省略.........

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : percentage - 
//-----------------------------------------------------------------------------
void C_AlyxEmpEffect::UpdateDischarging( void )
{
	// Emitters must be valid
	if ( SetupEmitters() == false )
		return;

	// Reset our sort origin
	m_pSimpleEmitter->SetSortOrigin( GetAbsOrigin() );

	float flScale = EMP_SCALE * 8.0f;

	Vector forward, right, up;
	AngleVectors( GetAbsAngles(), &forward, &right, &up );

	SimpleParticle *sParticle;

	float dTime = gpGlobals->frametime;
	
	while ( m_tParticleSpawn.NextEvent( dTime ) )
	{
		// Base of the core effect
		sParticle = (SimpleParticle *) m_pSimpleEmitter->AddParticle( sizeof(SimpleParticle), m_pSimpleEmitter->GetPMaterial( EMP_PARTICLES ), GetAbsOrigin() );

		if ( sParticle == NULL )
			return;
		
		sParticle->m_vecVelocity	= vec3_origin;
		sParticle->m_flDieTime		= 0.25f;
		sParticle->m_flLifetime		= 0.0f;

		sParticle->m_flRoll			= Helper_RandomInt( 0, 360 );
		sParticle->m_flRollDelta	= 0.0f;

		float alpha = 64;

		sParticle->m_uchColor[0]	= alpha;
		sParticle->m_uchColor[1]	= alpha;
		sParticle->m_uchColor[2]	= alpha;
		sParticle->m_uchStartAlpha	= alpha;
		sParticle->m_uchEndAlpha	= 0;

		sParticle->m_uchStartSize	= flScale * 4.0f;
		sParticle->m_uchEndSize		= 0.0f;

		// Base of the core effect
		sParticle = (SimpleParticle *) m_pSimpleEmitter->AddParticle( sizeof(SimpleParticle), m_pSimpleEmitter->GetPMaterial( EMP_PARTICLES ), GetAbsOrigin() );

		if ( sParticle == NULL )
			return;
		
		sParticle->m_vecVelocity	= vec3_origin;
		sParticle->m_flDieTime		= 0.1f;
		sParticle->m_flLifetime		= 0.0f;

		sParticle->m_flRoll			= Helper_RandomInt( 0, 360 );
		sParticle->m_flRollDelta	= 0.0f;

		alpha = 128;

		sParticle->m_uchColor[0]	= alpha;
		sParticle->m_uchColor[1]	= alpha;
		sParticle->m_uchColor[2]	= alpha;
		sParticle->m_uchStartAlpha	= alpha;
		sParticle->m_uchEndAlpha	= 0;

		sParticle->m_uchStartSize	= 0.0f;
		sParticle->m_uchEndSize		= flScale * 2.0f;

		// Make sure we encompass the complete particle here!
		m_pSimpleEmitter->SetParticleCullRadius( sParticle->m_uchEndSize );

		// Do the core effects
		sParticle = (SimpleParticle *) m_pSimpleEmitter->AddParticle( sizeof(SimpleParticle), m_pSimpleEmitter->GetPMaterial( EMP_PARTICLES ), GetAbsOrigin() );

		if ( sParticle == NULL )
			return;
		
		sParticle->m_vecVelocity	= RandomVector( -32.0f, 32.0f );
		sParticle->m_flDieTime		= 0.2f;
		sParticle->m_flLifetime		= 0.0f;

		sParticle->m_flRoll			= Helper_RandomInt( 0, 360 );
		sParticle->m_flRollDelta	= 0.0f;

		alpha = 255;

		sParticle->m_uchColor[0]	= alpha;
		sParticle->m_uchColor[1]	= alpha;
		sParticle->m_uchColor[2]	= alpha;
		sParticle->m_uchStartAlpha	= alpha;
		sParticle->m_uchEndAlpha	= 0;

		sParticle->m_uchStartSize	= flScale;
		sParticle->m_uchEndSize		= 0.0f;
	}

//.........这里部分代码省略.........

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : percentage - 
//-----------------------------------------------------------------------------
void C_AlyxEmpEffect::UpdateCharging( float percentage )
{
	// Emitters must be valid
	if ( SetupEmitters() == false )
		return;

	if ( percentage <= 0.0f )
		return;

	// Reset our sort origin
	m_pSimpleEmitter->SetSortOrigin( GetAbsOrigin() );

	float flScale = 4.0f * EMP_SCALE * percentage;

	SimpleParticle *sParticle;

	float dTime = gpGlobals->frametime;
	
	while ( m_tParticleSpawn.NextEvent( dTime ) )
	{
		// Do the core effects
		sParticle = (SimpleParticle *) m_pSimpleEmitter->AddParticle( sizeof(SimpleParticle), m_pSimpleEmitter->GetPMaterial( EMP_PARTICLES ), GetAbsOrigin() );

		if ( sParticle == NULL )
			return;
		
		sParticle->m_vecVelocity	= vec3_origin;
		sParticle->m_flDieTime		= 0.1f;
		sParticle->m_flLifetime		= 0.0f;

		sParticle->m_flRoll			= Helper_RandomInt( 0, 360 );
		sParticle->m_flRollDelta	= 0.0f;

		float alpha = 255 * percentage;

		sParticle->m_uchColor[0]	= alpha;
		sParticle->m_uchColor[1]	= alpha;
		sParticle->m_uchColor[2]	= alpha;
		sParticle->m_uchStartAlpha	= alpha;
		sParticle->m_uchEndAlpha	= 0;

		sParticle->m_uchStartSize	= flScale;
		sParticle->m_uchEndSize		= sParticle->m_uchStartSize * 2.0f;
	}

#if 0

	// Do the charging particles
	m_pAttractorEmitter->SetAttractorOrigin( GetAbsOrigin() );

	Vector forward, right, up;
	AngleVectors( GetAbsAngles(), &forward, &right, &up );

	Vector	offset;
	float	dist;

	int numParticles = floor( 4.0f * percentage );

	for ( i = 0; i < numParticles; i++ )
	{
		dist = random->RandomFloat( 4.0f * percentage, 64.0f * percentage );

		offset = forward * dist;

		dist = RemapValClamped( dist, 4.0f * percentage, 64.0f * percentage, 6.0f, 1.0f );
		offset += right * random->RandomFloat( -4.0f * dist, 4.0f * dist );
		offset += up * random->RandomFloat( -4.0f * dist, 4.0f * dist );

		offset += GetAbsOrigin();

		sParticle = (SimpleParticle *) m_pAttractorEmitter->AddParticle( sizeof(SimpleParticle), m_pAttractorEmitter->GetPMaterial( EMP_PARTICLES ), offset );

		if ( sParticle == NULL )
			return;
		
		sParticle->m_vecVelocity	= Vector(0,0,8);
		sParticle->m_flDieTime		= 0.5f;
		sParticle->m_flLifetime		= 0.0f;

		sParticle->m_flRoll			= Helper_RandomInt( 0, 360 );
		sParticle->m_flRollDelta	= 0.0f;

		float alpha = 255 * percentage;

		sParticle->m_uchColor[0]	= alpha;
		sParticle->m_uchColor[1]	= alpha;
		sParticle->m_uchColor[2]	= alpha;
		sParticle->m_uchStartAlpha	= alpha;
		sParticle->m_uchEndAlpha	= 0;

		sParticle->m_uchStartSize	= random->RandomFloat( 1, 2 );
		sParticle->m_uchEndSize		= 0;
	}

#endif

//.........这里部分代码省略.........

void C_ParticleFire::Update(float fTimeDelta)
{
	if(!m_pParticleMgr)
	{
		assert(false);
		return;
	}


	// Add new emitters.
	if(m_nEmitters < MAX_FIRE_EMITTERS)
	{
		float tempDelta = fTimeDelta;
		while(m_EmitterSpawn.NextEvent(tempDelta))
		{
			FireEmitter *pEmitter = NULL;

			if(m_nEmitters == 0)
			{
				// Make the first emitter.
				trace_t trace;
				UTIL_TraceLine(m_vOrigin, m_vOrigin+m_vDirection*1000, MASK_SOLID_BRUSHONLY, NULL, COLLISION_GROUP_NONE, &trace);
				if(trace.fraction < 1)
				{
					pEmitter = &m_Emitters[m_nEmitters];
					pEmitter->m_Pos = trace.endpos + trace.plane.normal * (size - 1);
					pEmitter->m_DirectionsTested = 0;
				}
			}
			else
			{
				static int nTries = 50;
				for(int iTry=0; iTry < nTries; iTry++)
				{
					FireEmitter *pSourceEmitter = &m_Emitters[rand() % m_nEmitters];
					
					int iOffset = rand() % NUM_FIREGRID_OFFSETS;
					if(pSourceEmitter->m_DirectionsTested & (1 << iOffset))
						continue;

					// Test the corners of the new cube. If some points are solid and some are not, then
					// we can put fire here.
					Vector basePos = pSourceEmitter->m_Pos + g_Offsets[iOffset] * fireSpreadDist;
					int nSolidCorners = 0;
					for(int iCorner=0; iCorner < NUM_FIREGRID_OFFSETS; iCorner++)
					{
						Vector vCorner = basePos + g_Offsets[iCorner]*fireSpreadDist;
						if ( enginetrace->GetPointContents(vCorner) & CONTENTS_SOLID )
							++nSolidCorners;
					}

					// Don't test this square again.
					pSourceEmitter->m_DirectionsTested |= 1 << iOffset;

					if(nSolidCorners != 0 && nSolidCorners != NUM_FIREGRID_OFFSETS)
					{
						pEmitter = &m_Emitters[m_nEmitters];
						pEmitter->m_Pos = basePos;
						pEmitter->m_DirectionsTested = 1 << GetOppositeOffset(iOffset);
					}
				}
			}
			
			if(pEmitter)
			{
				pEmitter->m_Lifetime = 0;
				pEmitter->m_SpawnEvent.Init(1);
				++m_nEmitters;
			}
		}
	}

	// Spawn particles out of the emitters.
	for(int i=0; i < m_nEmitters; i++)
	{
		FireEmitter *pEmitter = &m_Emitters[i];

		float tempDelta = fTimeDelta;
		while(pEmitter->m_SpawnEvent.NextEvent(tempDelta))
		{
			FireParticle *pParticle = (FireParticle*)m_ParticleEffect.AddParticle(sizeof(FireParticle), m_MaterialHandle);
			if(pParticle)
			{
				static float particleSpeed = 15;
				pParticle->m_StartPos = pEmitter->m_Pos;
				pParticle->m_Direction = g_FireSpreadDirection * particleSpeed + RandomVector(0, particleSpeed*0.5);
				pParticle->m_iRamp = rand() % NUM_FIRE_RAMPS;
				pParticle->m_Lifetime = 0;
			}
		}
	}
}

void C_SteamJet::Update(float fTimeDelta)
{
	if(!m_pParticleMgr)
	{
		assert(false);
		return;
	}

	if( m_bEmit )
	{
		// Add new particles.
		int nToEmit = 0;
		float tempDelta = fTimeDelta;
		while( m_ParticleSpawn.NextEvent(tempDelta) )
			++nToEmit;

		if ( nToEmit > 0 )
		{
			Vector forward, right, up;
			AngleVectors(GetAbsAngles(), &forward, &right, &up);			

			// Legacy env_steamjet entities faced left instead of forward.
			if (m_bFaceLeft)
			{
				Vector temp = forward;
				forward = -right;
				right = temp;
			}

			// EVIL: Ideally, we could tell the renderer our OBB, and let it build a big box that encloses
			// the entity with its parent so it doesn't have to setup its parent's bones here.
			Vector vEndPoint = GetAbsOrigin() + forward * m_Speed;
			Vector vMin, vMax;
			VectorMin( GetAbsOrigin(), vEndPoint, vMin );
			VectorMax( GetAbsOrigin(), vEndPoint, vMax );
			m_ParticleEffect.SetBBox( vMin, vMax );

			if ( m_ParticleEffect.WasDrawnPrevFrame() )
			{
				while ( nToEmit-- )
				{
					// Make a new particle.
					if( SteamJetParticle *pParticle = (SteamJetParticle*) m_ParticleEffect.AddParticle( sizeof(SteamJetParticle), m_MaterialHandle ) )
					{
						pParticle->m_Pos = GetAbsOrigin();
						
						pParticle->m_Velocity = 
							FRand(-m_SpreadSpeed,m_SpreadSpeed) * right +
							FRand(-m_SpreadSpeed,m_SpreadSpeed) * up +
							m_Speed * forward;
						
						pParticle->m_Lifetime	= 0;
						pParticle->m_DieTime	= m_Lifetime;

						pParticle->m_uchStartSize	= m_StartSize;
						pParticle->m_uchEndSize		= m_EndSize;

						pParticle->m_flRoll = random->RandomFloat( 0, 360 );
						pParticle->m_flRollDelta = random->RandomFloat( -m_flRollSpeed, m_flRollSpeed );
					}
				}
			}

			UpdateLightingRamp();
		}	
	}
}

//.........这里部分代码省略.........
			{
				Vector effect_origin;
				QAngle effect_angles;
				
				GetAttachment( m_iAttachment, effect_origin, effect_angles );

				//Raise the light a little bit away from the flare so it lights it up better.
				dl->origin	= effect_origin + Vector( 0, 0, 4 );
				dl->color.r = 255;
				dl->die		= gpGlobals->curtime + 0.1f;

				dl->radius	= baseScale * random->RandomFloat( 245.0f, 256.0f );
				dl->color.g = dl->color.b = random->RandomInt( 95, 128 );
		
				dlight_t *el= effects->CL_AllocElight( index );

				el->origin	= effect_origin;
				el->color.r = 255;
				el->color.g = dl->color.b = random->RandomInt( 95, 128 );
				el->radius	= baseScale * random->RandomFloat( 260.0f, 290.0f );
				el->die		= gpGlobals->curtime + 0.1f;
			}
		}
	}

	//
	// Smoke
	//

	float dt = timeDelta;

	if ( m_bSmoke )
	{
		while ( m_teSmokeSpawn.NextEvent( dt ) )
		{
			Vector	smokeOrg = GetAbsOrigin();

			Vector	flareScreenDir = ( smokeOrg - MainViewOrigin() );
			VectorNormalize( flareScreenDir );

			smokeOrg = smokeOrg + ( flareScreenDir * 2.0f );
			smokeOrg[2] += baseScale * 4.0f;

			SimpleParticle *sParticle = (SimpleParticle *) AddParticle( sizeof( SimpleParticle ), g_Mat_DustPuff[1], smokeOrg );
				
			if ( sParticle == NULL )
				return;

			sParticle->m_flLifetime		= 0.0f;
			sParticle->m_flDieTime		= 1.0f;
			
			sParticle->m_vecVelocity	= Vector( random->RandomFloat( -16.0f, 16.0f ), random->RandomFloat( -16.0f, 16.0f ), random->RandomFloat( 8.0f, 16.0f ) + 32.0f );

			if ( m_bPropFlare )
			{
				sParticle->m_uchColor[0]	= 255;
				sParticle->m_uchColor[1]	= 100;
				sParticle->m_uchColor[2]	= 100;
			}
			else
			{
				sParticle->m_uchColor[0]	= 255;
				sParticle->m_uchColor[1]	= 48;
				sParticle->m_uchColor[2]	= 48;
			}