// Create a body (planet, moon, spacecraft, etc.) using the values from a
// property list. The usePlanetsUnits flags specifies whether period and
// semi-major axis are in years and AU rather than days and kilometers.
static Body* CreateBody(const string& name,
PlanetarySystem* system,
Universe& universe,
Body* existingBody,
Hash* planetData,
const string& path,
Disposition disposition,
BodyType bodyType)
{
Body* body = NULL;
if (disposition == ModifyObject || disposition == ReplaceObject)
{
body = existingBody;
}
if (body == NULL)
{
body = new Body(system, name);
// If the body doesn't exist, always treat the disposition as 'Add'
disposition = AddObject;
// Set the default classification for new objects based on the body type.
// This may be overridden by the Class property.
if (bodyType == SurfaceObject)
{
body->setClassification(Body::SurfaceFeature);
}
}
if (!CreateTimeline(body, system, universe, planetData, path, disposition, bodyType))
{
// No valid timeline given; give up.
if (body != existingBody)
delete body;
return NULL;
}
// Three values control the shape and size of an ellipsoidal object:
// semiAxes, radius, and oblateness. It is an error if neither the
// radius nor semiaxes are set. If both are set, the radius is
// multipled by each of the specified semiaxis to give the shape of
// the body ellipsoid. Oblateness is ignored if semiaxes are provided;
// otherwise, the ellipsoid has semiaxes: ( radius, radius, 1-radius ).
// These rather complex rules exist to maintain backward compatibility.
//
// If the body also has a mesh, it is always scaled in x, y, and z by
// the maximum semiaxis, never anisotropically.
double radius = (double) body->getRadius();
bool radiusSpecified = false;
if (planetData->getLength("Radius", radius))
{
body->setSemiAxes(Vector3f::Constant((float) radius));
radiusSpecified = true;
}
Vector3d semiAxes = Vector3d::Ones();
if (planetData->getVector("SemiAxes", semiAxes))
{
if (radiusSpecified)
{
// if the radius has been specified, treat SemiAxes as dimensionless
// (i.e. ignore units) and multiply the radius by the SemiAxes
semiAxes *= radius;
}
else
{
double semiAxesScale = 1.0;
planetData->getLengthScale("SemiAxes", semiAxesScale);
semiAxes *= semiAxesScale;
}
// Swap y and z to match internal coordinate system
body->setSemiAxes(Vector3f((float) semiAxes.x(), (float) semiAxes.z(), (float) semiAxes.y()));
}
else
{
double oblateness = 0.0;
if (planetData->getNumber("Oblateness", oblateness))
{
body->setSemiAxes((float) body->getRadius() * Vector3f(1.0f, 1.0f - (float) oblateness, 1.0f));
}
}
int classification = body->getClassification();
string classificationName;
if (planetData->getString("Class", classificationName))
classification = GetClassificationId(classificationName);
if (classification == Body::Unknown)
{
// Try to guess the type
if (system->getPrimaryBody() != NULL)
{
if(radius > 0.1)
classification = Body::Moon;
else
classification = Body::Spacecraft;
}
else
{
if (radius < 1000.0)
classification = Body::Asteroid;
else
classification = Body::Planet;
}
}
body->setClassification(classification);
if (classification == Body::Invisible)
body->setVisible(false);
// Set default properties for the object based on its classification
if (classification & CLASSES_INVISIBLE_AS_POINT)
body->setVisibleAsPoint(false);
if ((classification & CLASSES_SECONDARY_ILLUMINATOR) == 0)
body->setSecondaryIlluminator(false);
if (classification & CLASSES_UNCLICKABLE)
body->setClickable(false);
string infoURL;
if (planetData->getString("InfoURL", infoURL))
{
if (infoURL.find(':') == string::npos)
{
// Relative URL, the base directory is the current one,
// not the main installation directory
if (path[1] == ':')
// Absolute Windows path, file:/// is required
infoURL = "file:///" + path + "/" + infoURL;
else if (!path.empty())
infoURL = path + "/" + infoURL;
}
body->setInfoURL(infoURL);
}
double albedo = 0.5;
if (planetData->getNumber("Albedo", albedo))
body->setAlbedo((float) albedo);
// TODO - add mass units
double mass = 0.0;
if (planetData->getNumber("Mass", mass))
body->setMass((float) mass);
Quaternionf orientation = Quaternionf::Identity();
if (planetData->getRotation("Orientation", orientation))
{
body->setGeometryOrientation(orientation);
}
Surface surface;
if (disposition == ModifyObject)
{
surface = body->getSurface();
}
else
{
surface.color = Color(1.0f, 1.0f, 1.0f);
surface.hazeColor = Color(0.0f, 0.0f, 0.0f, 0.0f);
}
FillinSurface(planetData, &surface, path);
body->setSurface(surface);
{
string geometry("");
if (planetData->getString("Mesh", geometry))
{
Vector3f geometryCenter(Vector3f::Zero());
if (planetData->getVector("MeshCenter", geometryCenter))
{
// TODO: Adjust bounding radius if model center isn't
// (0.0f, 0.0f, 0.0f)
}
bool isNormalized = true;
planetData->getBoolean("NormalizeMesh", isNormalized);
float geometryScale = 1.0f;
planetData->getLength("MeshScale", geometryScale);
ResourceHandle geometryHandle = GetGeometryManager()->getHandle(GeometryInfo(geometry, path, geometryCenter, 1.0f, isNormalized));
body->setGeometry(geometryHandle);
body->setGeometryScale(geometryScale);
}
}
// Read the atmosphere
{
Value* atmosDataValue = planetData->getValue("Atmosphere");
if (atmosDataValue != NULL)
{
if (atmosDataValue->getType() != Value::HashType)
{
cout << "ReadSolarSystem: Atmosphere must be an assoc array.\n";
}
else
{
Hash* atmosData = atmosDataValue->getHash();
assert(atmosData != NULL);
Atmosphere* atmosphere = NULL;
if (disposition == ModifyObject)
{
atmosphere = body->getAtmosphere();
if (atmosphere == NULL)
{
Atmosphere atm;
body->setAtmosphere(atm);
atmosphere = body->getAtmosphere();
}
}
else
{
atmosphere = new Atmosphere();
}
atmosData->getLength("Height", atmosphere->height);
atmosData->getColor("Lower", atmosphere->lowerColor);
atmosData->getColor("Upper", atmosphere->upperColor);
atmosData->getColor("Sky", atmosphere->skyColor);
atmosData->getColor("Sunset", atmosphere->sunsetColor);
atmosData->getNumber("Mie", atmosphere->mieCoeff);
atmosData->getLength("MieScaleHeight", atmosphere->mieScaleHeight);
atmosData->getNumber("MieAsymmetry", atmosphere->miePhaseAsymmetry);
atmosData->getVector("Rayleigh", atmosphere->rayleighCoeff);
//atmosData->getNumber("RayleighScaleHeight", atmosphere->rayleighScaleHeight);
atmosData->getVector("Absorption", atmosphere->absorptionCoeff);
// Get the cloud map settings
atmosData->getLength("CloudHeight", atmosphere->cloudHeight);
if (atmosData->getNumber("CloudSpeed", atmosphere->cloudSpeed))
atmosphere->cloudSpeed = degToRad(atmosphere->cloudSpeed);
string cloudTexture;
if (atmosData->getString("CloudMap", cloudTexture))
{
atmosphere->cloudTexture.setTexture(cloudTexture,
path,
TextureInfo::WrapTexture);
}
string cloudNormalMap;
if (atmosData->getString("CloudNormalMap", cloudNormalMap))
{
atmosphere->cloudNormalMap.setTexture(cloudNormalMap,
path,
TextureInfo::WrapTexture);
}
double cloudShadowDepth = 0.0;
if (atmosData->getNumber("CloudShadowDepth", cloudShadowDepth))
{
cloudShadowDepth = max(0.0, min(1.0, cloudShadowDepth)); // clamp to [0, 1]
atmosphere->cloudShadowDepth = (float) cloudShadowDepth;
}
body->setAtmosphere(*atmosphere);
if (disposition != ModifyObject)
delete atmosphere;
}
}
}
// Read the ring system
{
Value* ringsDataValue = planetData->getValue("Rings");
if (ringsDataValue != NULL)
{
if (ringsDataValue->getType() != Value::HashType)
{
cout << "ReadSolarSystem: Rings must be an assoc array.\n";
}
else
{
Hash* ringsData = ringsDataValue->getHash();
// ASSERT(ringsData != NULL);
RingSystem rings(0.0f, 0.0f);
if (body->getRings() != NULL)
rings = *body->getRings();
double inner = 0.0, outer = 0.0;
if (ringsData->getLength("Inner", inner))
rings.innerRadius = (float) inner;
if (ringsData->getLength("Outer", outer))
rings.outerRadius = (float) outer;
Color color(1.0f, 1.0f, 1.0f);
if (ringsData->getColor("Color", color))
rings.color = color;
string textureName;
if (ringsData->getString("Texture", textureName))
rings.texture = MultiResTexture(textureName, path);
body->setRings(rings);
}
}
}
bool clickable = true;
if (planetData->getBoolean("Clickable", clickable))
{
body->setClickable(clickable);
}
bool visible = true;
if (planetData->getBoolean("Visible", visible))
{
body->setVisible(visible);
}
Color orbitColor;
if (planetData->getColor("OrbitColor", orbitColor))
{
body->setOrbitColorOverridden(true);
body->setOrbitColor(orbitColor);
}
return body;
}
FavoritesList* ReadFavoritesList(istream& in)
{
FavoritesList* favorites = new FavoritesList();
Tokenizer tokenizer(&in);
Parser parser(&tokenizer);
while (tokenizer.nextToken() != Tokenizer::TokenEnd)
{
if (tokenizer.getTokenType() != Tokenizer::TokenString)
{
DPRINTF(0, "Error parsing favorites file.\n");
for_each(favorites->begin(), favorites->end(), deleteFunc<FavoritesEntry*>());
delete favorites;
return NULL;
}
FavoritesEntry* fav = new FavoritesEntry();
fav->name = tokenizer.getStringValue();
Value* favParamsValue = parser.readValue();
if (favParamsValue == NULL || favParamsValue->getType() != Value::HashType)
{
DPRINTF(0, "Error parsing favorites entry %s\n", fav->name.c_str());
for_each(favorites->begin(), favorites->end(), deleteFunc<FavoritesEntry*>());
delete favorites;
if (favParamsValue != NULL)
delete favParamsValue;
return NULL;
}
Hash* favParams = favParamsValue->getHash();
//If this is a folder, don't get any other params.
if(!favParams->getBoolean("isFolder", fav->isFolder))
fav->isFolder = false;
if(fav->isFolder)
{
favorites->insert(favorites->end(), fav);
continue;
}
// Get parentFolder
favParams->getString("parentFolder", fav->parentFolder);
// Get position
Vec3d base(0.0, 0.0, 0.0);
Vec3d offset(0.0, 0.0, 0.0);
favParams->getVector("base", base);
favParams->getVector("offset", offset);
base *= 1e6;
fav->position = UniversalCoord(Point3d(base.x, base.y, base.z)) + offset;
// Get orientation
Vec3d axis(1.0, 0.0, 0.0);
double angle = 0.0;
favParams->getVector("axis", axis);
favParams->getNumber("angle", angle);
fav->orientation.setAxisAngle(Vec3f((float) axis.x, (float) axis.y, (float) axis.z),
(float) angle);
// Get time
fav->jd = 0.0;
favParams->getNumber("time", fav->jd);
// Get the selected object
favParams->getString("selection", fav->selectionName);
string coordSysName;
favParams->getString("coordsys", coordSysName);
if (coordSysName == "ecliptical")
fav->coordSys = ObserverFrame::Ecliptical;
else if (coordSysName == "equatorial")
fav->coordSys = ObserverFrame::Equatorial;
else if (coordSysName == "geographic")
fav->coordSys = ObserverFrame::BodyFixed;
else
fav->coordSys = ObserverFrame::Universal;
favorites->insert(favorites->end(), fav);
}
return favorites;
}
