public static StellarSystem GenerateStellarSystem(string systemName, SystemGenerationOptions genOptions = null, StellarBody sun = null, IEnumerable <Seed> seedSystem = null)
{
genOptions ??= new SystemGenerationOptions();
var phy = new BodyPhysics();
sun ??= new Star()
{
Science = phy
};
var useRandomTilt = seedSystem == null;
var accrete = new Accrete(Ratio.FromDecimalFractions(genOptions.CloudEccentricity),
Ratio.FromDecimalFractions(genOptions.GasDensityRatio),
Ratio.FromDecimalFractions(genOptions.DustDensityCoeff));
double outer_planet_limit = GetOuterLimit(sun);
double outer_dust_limit = GetStellarDustLimit(sun.Mass.SolarMasses);
seedSystem = seedSystem ?? accrete.CreateSeeds(sun.Mass,
sun.Luminosity, Length.FromAstronomicalUnits(0.0), Length.FromAstronomicalUnits(outer_dust_limit), Length.FromAstronomicalUnits(outer_planet_limit), Length.Zero);
var planets = GeneratePlanets(sun, seedSystem, useRandomTilt, genOptions);
return(new StellarSystem()
{
Options = genOptions,
Planets = planets,
Name = systemName,
Star = sun
});
}
public static StellarGroup GenerateStellarGroup(int seed, int numSystems, SystemGenerationOptions genOptions = null)
{
Extensions.InitRandomSeed(seed);
genOptions = genOptions ?? SystemGenerationOptions.DefaultOptions;
var group = new StellarGroup()
{
Seed = seed, GenOptions = genOptions, Systems = new List <StellarSystem>()
};
for (var i = 0; i < numSystems; i++)
{
var name = string.Format("System {0}", i);
group.Systems.Add(GenerateStellarSystem(name, genOptions));
}
return(group);
}
private static ICollection <SatelliteBody> GeneratePlanets(StellarBody sun, IEnumerable <Seed> seeds, bool useRandomTilt, SystemGenerationOptions genOptions)
{
var planets = new List <SatelliteBody>();
var i = 0;
foreach (var seed in seeds)
{
var planetNo = i + 1; // start counting planets at 1
i += 1;
string planet_id = planetNo.ToString();
var planet = new Planet(seed, sun, sun);
planets.Add(planet);
}
return(planets);
}
