void CSheetSimulator::Simulate( float dt, int steps )
{
ComputeControlPoints();
// Initialize positions if necessary
dt /= steps;
for (int i = 0; i < steps; ++i)
{
// Each step, we want to re-select the best collision planes to constrain
// the movement by
DetermineBestCollisionPlane();
EulerStep(dt);
}
}
void CSheetSimulator::SetPosition( const Vector& origin, const QAngle& angles )
{
// FIXME: Need a better metric for position reset
if (m_Origin.DistToSqr(origin) > 1e3)
{
for ( int i = 0; i < NumParticles(); ++i )
{
m_Particle[i].m_Position = origin;
m_Particle[i].m_Velocity = Vector(0,0,0);
}
}
m_Origin = origin;
m_Angles = angles;
ComputeControlPoints();
}
//-----------------------------------------------------------------------------
// Update the shield position:
//-----------------------------------------------------------------------------
void CShieldEffect::Simulate( float dt )
{
// We're gonna basically assume a spring connected to the center control point
Vector forward;
AngleVectors(m_angDesiredAngles, &forward, 0, 0);
// We've got two springs: a spring connected to the origin
// and a torsional spring connected to the view direction.
// Stiff spring, subdivide time....
dt /= SHIELD_TIME_SUBVISIBIONS;
for (int i = 0; i < SHIELD_TIME_SUBVISIBIONS; ++i)
{
SimulateTranslation( dt );
SimulateRotation( dt, forward );
}
ComputeControlPoints();
}
