示例#1
0
//-----------------------------------------------------------------------------
// Purpose: 
// Input  : bool - 
//-----------------------------------------------------------------------------
void C_TEShowLine::PostDataUpdate( DataUpdateType_t updateType )
{
	Vector		vec;
	float		len;
	StandardParticle_t	*p;
	int			dec;
	static int	tracercount;

	VectorSubtract (m_vecEnd, m_vecOrigin, vec);
	len = VectorNormalize (vec);

	dec = 3;

	VectorScale(vec, dec, vec);

	CSmartPtr<CTEParticleRenderer> pRen = CTEParticleRenderer::Create( "TEShowLine", m_vecOrigin );
	if( !pRen )
		return;
	
	while (len > 0)
	{
		len -= dec;

		p = pRen->AddParticle();
		if ( p )
		{
			p->m_Velocity.Init();

			pRen->SetParticleLifetime(p, 30);
			
			p->SetColor(0, 1, 1);
			p->SetAlpha(1);
			pRen->SetParticleType(p, pt_static);

			p->m_Pos = m_vecOrigin;
			
			m_vecOrigin += vec;
		}
	}
}
void CTEParticleRenderer::SimulateParticles( CParticleSimulateIterator *pIterator )
{
	StandardParticle_t *pParticle = (StandardParticle_t*)pIterator->GetFirst();
	while ( pParticle )
	{
		// Remove the particle?
		SetParticleLifetime(pParticle, GetParticleLifetime(pParticle) - pIterator->GetTimeDelta());
		if(GetParticleLifetime(pParticle) < 0)
		{
			pIterator->RemoveParticle( pParticle );
		}
		else
		{
			float	ft = pIterator->GetTimeDelta();
			float	time3 = 15.0 * ft;
			float	time2 = 10.0 * ft;
			float	time1 = 5.0 * ft;
			float	dvel = 4* ft ;

			float grav = ft * sv_gravity.GetFloat() * 0.05f;

			int		(*colorIndex)[3];
			int		iRamp;

			switch(GetParticleType(pParticle))
			{
			case pt_static:
				break;

			case pt_fire:
				pParticle->m_EffectDataWord += (unsigned short)(time1 * (1 << SIMSHIFT));
				iRamp = pParticle->m_EffectDataWord >> SIMSHIFT;
				if(iRamp >= 6)
				{
					pParticle->m_Lifetime = -1;
				}
				else
				{
					colorIndex = &ramp3[ iRamp ];
					pParticle->SetColor((float)(*colorIndex)[0] / 255.0f, (float)(*colorIndex)[1] / 255.0f, (float)(*colorIndex)[2] / 255.0f);
				}
				pParticle->m_Velocity[2] += grav;
				break;

			case pt_explode:
				pParticle->m_EffectDataWord += (unsigned short)(time2 * (1 << SIMSHIFT));
				iRamp = pParticle->m_EffectDataWord >> SIMSHIFT;
				if(iRamp >= 8)
				{
					pParticle->m_Lifetime = -1;
				}
				else
				{
					colorIndex = &ramp1[ iRamp ];
					pParticle->SetColor((float)(*colorIndex)[0] / 255.0f, (float)(*colorIndex)[1] / 255.0f, (float)(*colorIndex)[2] / 255.0f);
				}
				pParticle->m_Velocity = pParticle->m_Velocity + pParticle->m_Velocity * dvel;
				pParticle->m_Velocity[2] -= grav;
				break;

			case pt_explode2:
				pParticle->m_EffectDataWord += (unsigned short)(time3 * (1 << SIMSHIFT));
				iRamp = pParticle->m_EffectDataWord >> SIMSHIFT;
				if(iRamp >= 8)
				{
					pParticle->m_Lifetime = -1;
				}
				else
				{
					colorIndex = &ramp2[ iRamp ];
					pParticle->SetColor((float)(*colorIndex)[0] / 255.0f, (float)(*colorIndex)[1] / 255.0f, (float)(*colorIndex)[2] / 255.0f);
				}
				pParticle->m_Velocity = pParticle->m_Velocity - pParticle->m_Velocity * ft;
				pParticle->m_Velocity[2] -= grav;
				break;

			case pt_grav:
				pParticle->m_Velocity[2] -= grav * 20;
				break;
			case pt_slowgrav:
				pParticle->m_Velocity[2] = grav;
				break;

			case pt_vox_grav:
				pParticle->m_Velocity[2] -= grav * 8;
				break;
				
			case pt_vox_slowgrav:
				pParticle->m_Velocity[2] -= grav * 4;
				break;

				
			case pt_blob:
			case pt_blob2:
				pParticle->m_EffectDataWord += (unsigned short)(time2 * (1 << SIMSHIFT));
				iRamp = pParticle->m_EffectDataWord >> SIMSHIFT;
				if(iRamp >= SPARK_COLORCOUNT)
				{
					pParticle->m_EffectDataWord = 0;
					iRamp = 0;
				}
				
				colorIndex = &gSparkRamp[ iRamp ];
				pParticle->SetColor((float)(*colorIndex)[0] / 255.0f, (float)(*colorIndex)[1] / 255.0f, (float)(*colorIndex)[2] / 255.0f);
				
				pParticle->m_Velocity[0] -= pParticle->m_Velocity[0]*0.5*ft;
				pParticle->m_Velocity[1] -= pParticle->m_Velocity[1]*0.5*ft;
				pParticle->m_Velocity[2] -= grav * 5;

				if ( random->RandomInt(0,3) )
				{
					SetParticleType(pParticle, pt_blob);
					pParticle->SetAlpha(0);
				}
				else
				{
					SetParticleType(pParticle, pt_blob2);
					pParticle->SetAlpha(255.9f);
				}
				break;
			}
			// Update position.
			pParticle->m_Pos = pParticle->m_Pos + pParticle->m_Velocity * ft;
		}

		pParticle = (StandardParticle_t*)pIterator->GetNext();
	}
}
void TE_BloodStream( IRecipientFilter& filter, float delay,
	const Vector* org, const Vector* direction, int r, int g, int b, int a, int amount )
{
	CSmartPtr<CTEParticleRenderer> pRen = CTEParticleRenderer::Create( "TEBloodStream", *org );
	if( !pRen )
		return;

	// Add our particles.
	Vector		dirCopy;
	float		arc = 0.05;
	int			count, count2;
	float		num;
	int			speedCopy = amount;
	
	Vector dir;
	VectorCopy( *direction, dir );
	VectorNormalize( dir );
	
	for (count=0 ; count<100 ; count++)
	{
		StandardParticle_t *p = pRen->AddParticle();
		if(p)
		{
			p->SetColor(r * random->RandomFloat(0.7, 1.0), g, b);
			p->SetAlpha(a);
			p->m_Pos = *org;
			pRen->SetParticleLifetime(p, 2);
			pRen->SetParticleType(p, pt_vox_grav);
			
			VectorCopy (dir, dirCopy);
			
			dirCopy[2] -= arc;
			arc -= 0.005;
			
			VectorScale (dirCopy, speedCopy, p->m_Velocity);
			
			speedCopy -= 0.00001;// so last few will drip
		}
	}
	
	// now a few rogue voxels
	arc = 0.075;
	for (count = 0 ; count < (amount/5); count ++)
	{
		StandardParticle_t *p = pRen->AddParticle();
		if(p)
		{
			pRen->SetParticleLifetime(p, 3);
			p->SetColor(r * random->RandomFloat(0.7, 1.0), g, b);
			p->SetAlpha(a);
			p->m_Pos = *org;
			pRen->SetParticleType(p, pt_vox_slowgrav);
			
			VectorCopy (dir, dirCopy);
			
			dirCopy[2] -= arc;
			arc -= 0.005;
			
			num = random->RandomFloat(0,1);
			speedCopy = amount * num;
			
			num *= 1.7;
			
			VectorScale (dirCopy, num, dirCopy);// randomize a bit
			p->m_Velocity = dirCopy * speedCopy;
			
			
			// add a few extra voxels directly adjacent to this one to give a 
			// 'chunkier' appearance.
			for (count2 = 0; count2 < 2; count2++)
			{
				StandardParticle_t *p = pRen->AddParticle();
				if(p)
				{
					pRen->SetParticleLifetime(p, 3);
					p->SetColor(random->RandomFloat(0.7, 1.0), g, b);
					p->SetAlpha(a);
					p->m_Pos.Init(
						(*org)[0] + random->RandomFloat(-1,1),
						(*org)[1] + random->RandomFloat(-1,1),
						(*org)[2] + random->RandomFloat(-1,1));
					
					pRen->SetParticleType(p, pt_vox_slowgrav);
					
					VectorCopy (dir, dirCopy);
					
					dirCopy[2] -= arc;
					
					VectorScale (dirCopy, num, dirCopy);// randomize a bit
					
					p->m_Velocity = dirCopy * speedCopy;
				}
			}
		}
	}
}