Method Update

trinity/Eve/SpaceObject/Children/EveChildParticleSphere.cpp:199–241

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// -----------------------------------------------------------------------------
void EveChildParticleSphere::Update( const EveUpdateContext& updateContext )
{
	auto delta = updateContext.GetDeltaT();

	auto originShift = updateContext.GetOriginShift();
	if( m_maxSpeed > 0.f && Length( originShift ) > m_maxSpeed * delta )
	{
		originShift = Normalize( originShift ) * ( m_maxSpeed * delta );
	}
	originShift *= m_movementScale;

	if( m_bindStatus == BIND_VALID )
	{
		auto worldInv = Inverse( m_worldTransform );
		auto previousReferencePosition = TransformCoord( m_previousOrigin + originShift, worldInv );

		auto shift = Length( TransformCoord( m_previousOrigin, worldInv ) );
		m_positionShift = shift;
		auto positionShiftNormalized = std::min( std::max( ( m_positionShift - m_positionShiftMin ) / ( m_positionShiftMax - m_positionShiftMin ), 0.f ), 1.f );
		if( positionShiftNormalized < m_positionShiftNormalized )
		{
			m_positionShiftNormalized = std::max( positionShiftNormalized, m_positionShiftNormalized - std::max( 0.f, delta * m_positionShiftDecreaseSpeed ) );
		}
		else
		{
			m_positionShiftNormalized = std::min( positionShiftNormalized, m_positionShiftNormalized + std::max( 0.f, delta * m_positionShiftIncreaseSpeed ) );
		}

		ApplyConstraint( previousReferencePosition, Normalize( m_egoVelocity ) );
		AddParticles( previousReferencePosition, Normalize( m_egoVelocity ) );
	}

	m_previousOrigin = m_worldTransform.GetTranslation();

	if( m_particleSystem )
	{
		m_particleSystem->Update( ITr2GenericEmitter::UpdateArguments(
			updateContext.GetTime(),
			updateContext.GetGpuParticleSystem(),
			IdentityMatrix(),
			updateContext.GetOriginShift() ) );
	}
}

// -----------------------------------------------------------------------------
bool EveChildParticleSphere::CheckBinding()