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Show surface starports in the system map

master
Gliese852 2020-12-08 12:37:43 +03:00 committed by Webster Sheets
parent 6f1e8e6c99
commit 5b1e62e978
1 changed files with 32 additions and 8 deletions
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40
src/SystemView.cpp
View File

@ -360,6 +360,26 @@ void SystemView::PutOrbit(Projectable::bases base, RefType *ref, const Orbit *or
}
}
// returns the position of the ground spaceport relative to the center of the planet at the specified time
static vector3d position_of_surface_starport_relative_to_parent(const SystemBody *starport, double time)
{
const SystemBody *parent = starport->GetParent();
// planet axis tilt
return matrix3x3d::RotateX(parent->GetAxialTilt()) *
// the angle the planet has turned since the beginning of time
matrix3x3d::RotateY(-2 * M_PI / parent->GetRotationPeriod() * time + parent->GetRotationPhaseAtStart()) *
// the original coordinates of the starport are saved as a 3x3 matrix,
starport->GetOrbit().GetPlane() *
// to get the direction to the station, you need to multiply them by 0.0, 1.0, 0.0
vector3d(0.0, 1.0, 0.0) *
// we need the distance to the center of the planet
(Pi::game->IsNormalSpace() && Pi::game->GetSpace()->GetStarSystem()->GetPath().IsSameSystem(Pi::game->GetSectorView()->GetSelected()) ?
// if we look at the current system, the relief is known, we take the height from the physical body
Pi::game->GetSpace()->FindBodyForPath(&(starport->GetPath()))->GetPosition().Length() :
// if the remote system - take the radius of the planet
parent->GetRadius());
}
void SystemView::PutBody(const SystemBody *b, const vector3d &offset, const matrix4x4f &trans)
{
if (b->GetType() == SystemBody::TYPE_STARPORT_SURFACE)
@ -390,15 +410,15 @@ void SystemView::PutBody(const SystemBody *b, const vector3d &offset, const matr
AddProjected<const SystemBody>(Projectable::OBJECT, Projectable::SYSTEMBODY, b, offset);
}
Frame *frame = Frame::GetFrame(Pi::player->GetFrame());
if (frame->IsRotFrame())
frame = Frame::GetFrame(frame->GetNonRotFrame());
// display all child bodies and their orbits
if (b->HasChildren()) {
for (const SystemBody *kid : b->GetChildren()) {
if (is_zero_general(kid->GetOrbit().GetSemiMajorAxis()))
if (kid->GetType() == SystemBody::TYPE_STARPORT_SURFACE) {
AddProjected<const SystemBody>(Projectable::OBJECT, Projectable::SYSTEMBODY, kid, position_of_surface_starport_relative_to_parent(kid, m_time) + offset);
continue;
}
if (is_zero_general(kid->GetOrbit().GetSemiMajorAxis())) continue;
const double axisZoom = kid->GetOrbit().GetSemiMajorAxis();
//semimajor axis radius should be at least 1% of screen width to show the orbit
@ -417,9 +437,13 @@ void SystemView::PutBody(const SystemBody *b, const vector3d &offset, const matr
void SystemView::GetTransformTo(const SystemBody *b, vector3d &pos)
{
if (b->GetParent()) {
GetTransformTo(b->GetParent(), pos);
pos -= b->GetOrbit().OrbitalPosAtTime(m_time);
const SystemBody *parent = b->GetParent();
if (parent) {
GetTransformTo(parent, pos);
if (b->GetType() == SystemBody::TYPE_STARPORT_SURFACE)
pos -= position_of_surface_starport_relative_to_parent(b, m_time);
else
pos -= b->GetOrbit().OrbitalPosAtTime(m_time);
}
}