void Frame::Init(Frame *parent, const char *label, unsigned int flags)
{
m_sfx = 0;
m_sbody = 0;
m_astroBody = 0;
m_parent = parent;
m_flags = flags;
m_radius = 0;
m_pos = vector3d(0.0);
m_vel = vector3d(0.0);
m_angSpeed = 0.0;
m_orient = matrix3x3d::Identity();
ClearMovement();
m_collisionSpace = new CollisionSpace();
if (m_parent) m_parent->AddChild(this);
if (label) m_label = label;
}
void Frame::UpdateInterpTransform(double alpha)
{
m_interpPos = alpha*m_pos + (1.0-alpha)*m_oldPos;
double len = m_oldAngDisplacement * (1.0-alpha);
if (!is_zero_exact(len)) { // very small values are normal here
matrix3x3d rot = matrix3x3d::RotateY(len); // RotateY is backwards
m_interpOrient = m_orient * rot;
}
else m_interpOrient = m_orient;
if (!m_parent) ClearMovement();
else {
m_rootInterpPos = m_parent->m_rootInterpOrient * m_interpPos
+ m_parent->m_rootInterpPos;
m_rootInterpOrient = m_parent->m_rootInterpOrient * m_interpOrient;
}
for (ChildIterator it = m_children.begin(); it != m_children.end(); ++it)
(*it)->UpdateInterpTransform(alpha);
}
void Frame::UpdateInterpTransform(double alpha)
{
PROFILE_SCOPED()
m_interpPos = alpha*m_pos + (1.0-alpha)*m_oldPos;
double len = m_oldAngDisplacement * (1.0-alpha);
if (!is_zero_exact(len)) { // very small values are normal here
matrix3x3d rot = matrix3x3d::RotateY(len); // RotateY is backwards
m_interpOrient = m_orient * rot;
}
else m_interpOrient = m_orient;
if (!m_parent) ClearMovement();
else {
m_rootInterpPos = m_parent->m_rootInterpOrient * m_interpPos
+ m_parent->m_rootInterpPos;
m_rootInterpOrient = m_parent->m_rootInterpOrient * m_interpOrient;
}
for (Frame* kid : m_children)
kid->UpdateInterpTransform(alpha);
}
