//----------------------------------------------------------------------------
void WaterDropFormation::DoPhysical2 ()
{
if (!mCircle)
{
Configuration1();
}
mSimTime += mSimDelta;
// Surface evolves to a disk.
float t = mSimTime - 1.0f, oneMinusT = 1.0f - t;
Vector2f newCtrl = oneMinusT*mSpline->GetControlPoint(2) +
t*mSpline->GetControlPoint(1);
mSpline->SetControlPoint(2, newCtrl);
// Sphere floats down a little bit.
int numCtrlPoints = mCircle->GetNumCtrlPoints();
for (int i = 0; i < numCtrlPoints; ++i)
{
newCtrl = mCircle->GetControlPoint(i) + Vector2f::UNIT_Y/32.0f;
mCircle->SetControlPoint(i, newCtrl);
}
mWaterSurface->UpdateSurface();
mWaterDrop->UpdateSurface();
mScene->Update();
}
//----------------------------------------------------------------------------
void WaterDropFormation::DoPhysical2 ()
{
if ( !m_pkCircle )
Configuration1();
m_fSimTime += m_fSimDelta;
// surface evolves to a disk
float fT = m_fSimTime - 1.0f, fOmT = 1.0f - fT;
Vector2f kNewCtrl = fOmT*m_pkSpline->GetControlPoint(2) +
fT*m_pkSpline->GetControlPoint(1);
m_pkSpline->SetControlPoint(2,kNewCtrl);
// sphere floats down a little bit
int iMax = m_pkCircle->GetNumCtrlPoints();
for (int i = 0; i < iMax; i++)
{
kNewCtrl = m_pkCircle->GetControlPoint(i) +
Vector2f::UNIT_Y/32.0f;
m_pkCircle->SetControlPoint(i,kNewCtrl);
}
m_spkWaterSurface->UpdateSurface();
m_spkWaterDrop->UpdateSurface();
m_spkScene->UpdateGS(0.0f);
}