private double GetNewEccentricity(PlanetSeed the_planet, double e, double a, double mass, double newA)
{
var newE = the_planet.Mass * Math.Sqrt(the_planet.SemiMajorAxisAU) * Math.Sqrt(1.0 - Math.Pow(the_planet.Eccentricity, 2.0));
newE = newE + (mass * Math.Sqrt(a) * Math.Sqrt(Math.Sqrt(1.0 - Math.Pow(e, 2.0))));
newE = newE / ((the_planet.Mass + mass) * Math.Sqrt(newA));
newE = 1.0 - Math.Pow(newE, 2.0);
if (newE < 0.0 || newE >= 1.0)
{
newE = 0.0;
}
return(Math.Sqrt(newE));
}
private void SetInitialConditions(double inner_limit_of_dust, double outer_limit_of_dust)
{
_histHead = new Generation();
_planetHead = null;
_dustHead = new DustRecord();
_dustHead.NextBand = null;
_dustHead.OuterEdge = outer_limit_of_dust;
_dustHead.InnerEdge = inner_limit_of_dust;
_dustHead.DustPresent = true;
_dustHead.GasPresent = true;
_dustLeft = true;
_cloudEccentricity = CloudEccentricity;
_histHead.Dusts = _dustHead;
_histHead.Planets = _planetHead;
_histHead.Next = _histHead;
}
public PlanetParameters(PlanetSeed planetSeed)
{
this.planetSeed = planetSeed;
Random.seed = planetSeed.seed;
gradientMultiplier = Random.Range (1.3f, 2.3f);
seaLevel = Random.Range (0.25f, 0.8f);
terrainHeight = Random.Range (0.04f, 0.08f);
perlinSpaceSeed = new Vector3(Random.Range(1f, 10f), Random.Range(1f, 10f), Random.Range(1f, 10f));
icyness = Mathf.Sqrt(Random.Range (0.01f, 15.0f))-2f;
Color32 shore = color(Random.Range(60, 120), Random.Range(120, 180), Random.Range(70, 110));
Color32 hills = color(Random.Range(80, 140), Random.Range(100, 160), Random.Range(60, 100));
Color32 highHills = color(Random.Range(80, 140), Random.Range(100, 160), Random.Range(60, 100));
Color32 mountains = color(Random.Range(210, 250), Random.Range(210, 250), Random.Range(230, 250));
gradient = new Gradient();
Gradient.GradientPoint p1 = new Gradient.GradientPoint(shore, 0.0f);
Gradient.GradientPoint p2 = new Gradient.GradientPoint(hills, 0.5f);
Gradient.GradientPoint p3 = new Gradient.GradientPoint(highHills, 0.8f);
Gradient.GradientPoint p4 = new Gradient.GradientPoint(mountains, 1.0f);
gradient.gradientPoints = new Gradient.GradientPoint[] { p1, p2, p3, p4 };
waterColor = new Color32((byte)Random.Range(40, 50), (byte)Random.Range(30, 90), (byte)Random.Range(90, 150), (byte)80);
landIceColor = new Color32((byte)Random.Range(230, 240), (byte)Random.Range(230, 240), (byte)Random.Range(240, 255), (byte)30);
waterIceColor = new Color32((byte)Random.Range(230, 245), (byte)Random.Range(240, 255), (byte)Random.Range(230, 245), (byte)240);
starLight = new Color32(
(byte)(Random.Range(135, 195) - 50*icyness),
(byte)(Random.Range(164, 124) - 40*icyness),
(byte)(Random.Range(200, 255) - 2*icyness),
(byte)255);
starIntensity = Random.Range (1.5f, 2.0f);
planetSize = Random.Range (0.75f, 1.25f);
name = PlanetNameGenerator.GenerateName();
}
public PlanetParameters(PlanetSeed planetSeed)
{
this.planetSeed = planetSeed;
Random.seed = planetSeed.seed;
gradientMultiplier = Random.Range(1.3f, 2.3f);
seaLevel = Random.Range(0.25f, 0.8f);
terrainHeight = Random.Range(0.04f, 0.08f);
perlinSpaceSeed = new Vector3(Random.Range(1f, 10f), Random.Range(1f, 10f), Random.Range(1f, 10f));
icyness = Mathf.Sqrt(Random.Range(0.01f, 15.0f)) - 2f;
Color32 shore = color(Random.Range(60, 120), Random.Range(120, 180), Random.Range(70, 110));
Color32 hills = color(Random.Range(80, 140), Random.Range(100, 160), Random.Range(60, 100));
Color32 highHills = color(Random.Range(80, 140), Random.Range(100, 160), Random.Range(60, 100));
Color32 mountains = color(Random.Range(210, 250), Random.Range(210, 250), Random.Range(230, 250));
gradient = new Gradient();
Gradient.GradientPoint p1 = new Gradient.GradientPoint(shore, 0.0f);
Gradient.GradientPoint p2 = new Gradient.GradientPoint(hills, 0.5f);
Gradient.GradientPoint p3 = new Gradient.GradientPoint(highHills, 0.8f);
Gradient.GradientPoint p4 = new Gradient.GradientPoint(mountains, 1.0f);
gradient.gradientPoints = new Gradient.GradientPoint[] { p1, p2, p3, p4 };
waterColor = new Color32((byte)Random.Range(40, 50), (byte)Random.Range(30, 90), (byte)Random.Range(90, 150), (byte)80);
landIceColor = new Color32((byte)Random.Range(230, 240), (byte)Random.Range(230, 240), (byte)Random.Range(240, 255), (byte)30);
waterIceColor = new Color32((byte)Random.Range(230, 245), (byte)Random.Range(240, 255), (byte)Random.Range(230, 245), (byte)240);
starLight = new Color32(
(byte)(Random.Range(135, 195) - 50 * icyness),
(byte)(Random.Range(164, 124) - 40 * icyness),
(byte)(Random.Range(200, 255) - 2 * icyness),
(byte)255);
starIntensity = Random.Range(1.5f, 2.0f);
planetSize = Random.Range(0.75f, 1.25f);
name = PlanetNameGenerator.GenerateName();
}
private static Planet GeneratePlanet(PlanetSeed seed, int planetNo, ref Star sun, bool useRandomTilt, string planetID, bool isMoon, SystemGenerationOptions genOptions)
{
var planet = new Planet(seed, sun, planetNo);
planet.OrbitZone = Environment.OrbitalZone(sun.Luminosity, planet.SemiMajorAxisAU);
planet.OrbitalPeriodDays = Environment.Period(planet.SemiMajorAxisAU, planet.MassSM, sun.Mass);
if (useRandomTilt)
{
planet.AxialTiltDegrees = Environment.Inclination(planet.SemiMajorAxisAU);
}
planet.ExosphereTempKelvin = GlobalConstants.EARTH_EXOSPHERE_TEMP / Utilities.Pow2(planet.SemiMajorAxisAU / sun.EcosphereRadiusAU);
planet.RMSVelocityCMSec = Environment.RMSVelocity(GlobalConstants.MOL_NITROGEN, planet.ExosphereTempKelvin);
planet.CoreRadiusKM = Environment.KothariRadius(planet.DustMassSM, false, planet.OrbitZone);
// Calculate the radius as a gas giant, to verify it will retain gas.
// Then if mass > Earth, it's at least 5% gas and retains He, it's
// some flavor of gas giant.
planet.DensityGCC = Environment.EmpiricalDensity(planet.MassSM, planet.SemiMajorAxisAU, sun.EcosphereRadiusAU, true);
planet.RadiusKM = Environment.VolumeRadius(planet.MassSM, planet.DensityGCC);
planet.SurfaceAccelerationCMSec2 = Environment.Acceleration(planet.MassSM, planet.RadiusKM);
planet.SurfaceGravityG = Environment.Gravity(planet.SurfaceAccelerationCMSec2);
planet.MolecularWeightRetained = Environment.MinMolecularWeight(planet);
// Is the planet a gas giant?
if (((planet.MassSM * GlobalConstants.SUN_MASS_IN_EARTH_MASSES) > 1.0) && ((planet.GasMassSM / planet.MassSM) > 0.05) && (planet.MolecularWeightRetained <= 4.0))
{
if ((planet.GasMassSM / planet.MassSM) < 0.20)
{
planet.Type = PlanetType.SubSubGasGiant;
}
else if ((planet.MassSM * GlobalConstants.SUN_MASS_IN_EARTH_MASSES) < 20.0)
{
planet.Type = PlanetType.SubGasGiant;
}
else
{
planet.Type = PlanetType.GasGiant;
}
}
else // If not, it's rocky.
{
planet.RadiusKM = Environment.KothariRadius(planet.MassSM, false, planet.OrbitZone);
planet.DensityGCC = Environment.VolumeDensity(planet.MassSM, planet.RadiusKM);
planet.SurfaceAccelerationCMSec2 = Environment.Acceleration(planet.MassSM, planet.RadiusKM);
planet.SurfaceGravityG = Environment.Gravity(planet.SurfaceAccelerationCMSec2);
if ((planet.GasMassSM / planet.MassSM) > 0.000001)
{
var h2Mass = planet.GasMassSM * 0.85;
var heMass = (planet.GasMassSM - h2Mass) * 0.999;
var h2Life = Environment.GasLife(GlobalConstants.MOL_HYDROGEN, planet.ExosphereTempKelvin,
planet.SurfaceGravityG, planet.RadiusKM);
var heLife = Environment.GasLife(GlobalConstants.HELIUM, planet.ExosphereTempKelvin,
planet.SurfaceGravityG, planet.RadiusKM);
if (h2Life < sun.AgeYears)
{
var h2Loss = ((1.0 - (1.0 / Math.Exp(sun.AgeYears / h2Life))) * h2Mass);
planet.GasMassSM -= h2Loss;
planet.MassSM -= h2Loss;
planet.SurfaceAccelerationCMSec2 = Environment.Acceleration(planet.MassSM, planet.RadiusKM);
planet.SurfaceGravityG = Environment.Gravity(planet.SurfaceAccelerationCMSec2);
}
if (heLife < sun.AgeYears)
{
var heLoss = ((1.0 - (1.0 / Math.Exp(sun.AgeYears / heLife))) * heMass);
planet.GasMassSM -= heLoss;
planet.MassSM -= heLoss;
planet.SurfaceAccelerationCMSec2 = Environment.Acceleration(planet.MassSM, planet.RadiusKM);
planet.SurfaceGravityG = Environment.Gravity(planet.SurfaceAccelerationCMSec2);
}
}
}
planet.AngularVelocityRadSec = Environment.AngularVelocity(planet);
planet.DayLengthHours = Environment.DayLength(planet.AngularVelocityRadSec, planet.OrbitalPeriodDays,
planet.Eccentricity);
planet.HasResonantPeriod = Environment.HasResonantPeriod(planet.AngularVelocityRadSec,
planet.DayLengthHours, planet.OrbitalPeriodDays, planet.Eccentricity);
planet.EscapeVelocityCMSec = Environment.EscapeVelocity(planet.MassSM, planet.RadiusKM);
planet.HillSphereKM = Environment.SimplifiedHillSphereKM(sun.Mass, planet.MassSM, planet.SemiMajorAxisAU);
if (planet.IsGasGiant)
{
planet.HasGreenhouseEffect = false;
planet.VolatileGasInventory = GlobalConstants.INCREDIBLY_LARGE_NUMBER;
planet.Atmosphere.SurfacePressure = GlobalConstants.INCREDIBLY_LARGE_NUMBER;
planet.BoilingPointWaterKelvin = GlobalConstants.INCREDIBLY_LARGE_NUMBER;
planet.SurfaceTempKelvin = GlobalConstants.INCREDIBLY_LARGE_NUMBER;
planet.GreenhouseRiseKelvin = 0;
planet.Albedo = Utilities.About(GlobalConstants.GAS_GIANT_ALBEDO, 0.1);
planet.WaterCoverFraction = 1.0;
planet.CloudCoverFraction = 1.0;
planet.IceCoverFraction = 0.0;
planet.SurfaceGravityG = Environment.Gravity(planet.SurfaceAccelerationCMSec2);
planet.MolecularWeightRetained = Environment.MinMolecularWeight(planet);
planet.SurfaceGravityG = GlobalConstants.INCREDIBLY_LARGE_NUMBER;
}
else
{
planet.SurfaceGravityG = Environment.Gravity(planet.SurfaceAccelerationCMSec2);
planet.MolecularWeightRetained = Environment.MinMolecularWeight(planet);
planet.HasGreenhouseEffect = Environment.Greenhouse(sun.EcosphereRadiusAU, planet.SemiMajorAxisAU);
planet.VolatileGasInventory = Environment.VolatileInventory(
planet.MassSM, planet.EscapeVelocityCMSec, planet.RMSVelocityCMSec, sun.Mass,
planet.OrbitZone, planet.HasGreenhouseEffect, (planet.GasMassSM / planet.MassSM) > 0.000001);
planet.Atmosphere.SurfacePressure = Environment.Pressure(
planet.VolatileGasInventory, planet.RadiusKM, planet.SurfaceGravityG);
planet.BoilingPointWaterKelvin = Math.Abs(planet.Atmosphere.SurfacePressure) < 0.001
? 0.0
: Environment.BoilingPoint(planet.Atmosphere.SurfacePressure);
// Sets: planet.surf_temp, planet.greenhs_rise, planet.albedo, planet.hydrosphere,
// planet.cloud_cover, planet.ice_cover
Environment.IterateSurfaceTemp(ref planet);
CalculateGases(planet, genOptions.GasTable);
planet.IsTidallyLocked = Environment.IsTidallyLocked(planet);
// Assign planet type
if (planet.Atmosphere.SurfacePressure < 1.0)
{
if (!isMoon && ((planet.MassSM * GlobalConstants.SUN_MASS_IN_EARTH_MASSES) < GlobalConstants.ASTEROID_MASS_LIMIT))
{
planet.Type = PlanetType.Asteroids;
}
else
{
planet.Type = PlanetType.Barren;
}
}
else if ((planet.Atmosphere.SurfacePressure > 6000.0) && (planet.MolecularWeightRetained <= 2.0)) // Retains Hydrogen
{
planet.Type = PlanetType.SubSubGasGiant;
planet.Atmosphere.Composition = new List <Gas>();
}
else
{
// Atmospheres:
// TODO remove PlanetType enum entirely and replace it with a more flexible classification systme
if (planet.WaterCoverFraction >= 0.95) // >95% water
{
planet.Type = PlanetType.Water;
}
else if (planet.IceCoverFraction >= 0.95) // >95% ice
{
planet.Type = PlanetType.Ice;
}
else if (planet.WaterCoverFraction > 0.05) // Terrestrial
{
planet.Type = PlanetType.Terrestrial;
}
else if (planet.MaxTempKelvin > planet.BoilingPointWaterKelvin) // Hot = Venusian
{
planet.Type = PlanetType.Venusian;
}
else if ((planet.GasMassSM / planet.MassSM) > 0.0001) // Accreted gas, but no greenhouse or liquid water make it an ice world
{
planet.Type = PlanetType.Ice;
planet.IceCoverFraction = 1.0;
}
else if (planet.Atmosphere.SurfacePressure <= 250.0) // Thin air = Martian
{
planet.Type = PlanetType.Martian;
}
else if (planet.SurfaceTempKelvin < GlobalConstants.FREEZING_POINT_OF_WATER)
{
planet.Type = PlanetType.Ice;
}
else
{
planet.Type = PlanetType.Unknown;
}
}
}
// Generate moons
planet.Moons = new List <Planet>();
if (!isMoon)
{
var curMoon = seed.FirstMoon;
var n = 0;
while (curMoon != null)
{
if (curMoon.Mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES > .000001)
{
curMoon.SemiMajorAxisAU = planet.SemiMajorAxisAU;
curMoon.Eccentricity = planet.Eccentricity;
n++;
string moon_id = String.Format("{0}.{1}", planetID, n);
var generatedMoon = GeneratePlanet(curMoon, n, ref sun, useRandomTilt, moon_id, true, genOptions);
double roche_limit = 2.44 * planet.RadiusKM * Math.Pow((planet.DensityGCC / generatedMoon.DensityGCC), (1.0 / 3.0));
double hill_sphere = planet.SemiMajorAxisAU * GlobalConstants.KM_PER_AU * Math.Pow((planet.MassSM / (3.0 * sun.Mass)), (1.0 / 3.0));
if ((roche_limit * 3.0) < hill_sphere)
{
generatedMoon.MoonSemiMajorAxisAU = Utilities.RandomNumber(roche_limit * 1.5, hill_sphere / 2.0) / GlobalConstants.KM_PER_AU;
generatedMoon.MoonEccentricity = Utilities.RandomEccentricity();
}
else
{
generatedMoon.MoonSemiMajorAxisAU = 0;
generatedMoon.MoonEccentricity = 0;
}
planet.Moons.Add(generatedMoon);
}
curMoon = curMoon.NextPlanet;
}
}
return(planet);
}
void Display(PlanetSeed planetSeed)
{
Display(new PlanetParameters(planetSeed));
}
private void CoalescePlanetesimals(double a, double e, double mass, double critMass, double dustMass, double gasMass, double stellLuminosityRatio, double bodyInnerBound, double bodyOuterBound, bool doMoons)
{
// First we try to find an existing planet with an over-lapping orbit.
PlanetSeed thePlanet = null;
PlanetSeed nextPlanet = null;
PlanetSeed prevPlanet = null;
var finished = false;
for (thePlanet = _planetHead; thePlanet != null; thePlanet = thePlanet.NextPlanet)
{
double diff = thePlanet.SemiMajorAxisAU - a;
double dist1;
double dist2;
if (diff > 0.0)
{
dist1 = (a * (1.0 + e) * (1.0 + _reducedMass)) - a;
/* x aphelion */
_reducedMass = Math.Pow((thePlanet.Mass / (1.0 + thePlanet.Mass)), (1.0 / 4.0));
dist2 = thePlanet.SemiMajorAxisAU
- (thePlanet.SemiMajorAxisAU * (1.0 - thePlanet.Eccentricity) * (1.0 - _reducedMass));
}
else
{
dist1 = a - (a * (1.0 - e) * (1.0 - _reducedMass));
/* x perihelion */
_reducedMass = Math.Pow((thePlanet.Mass / (1.0 + thePlanet.Mass)), (1.0 / 4.0));
dist2 = (thePlanet.SemiMajorAxisAU * (1.0 + thePlanet.Eccentricity) * (1.0 + _reducedMass))
- thePlanet.SemiMajorAxisAU;
}
// Did the planetesimal collide with this planet?
if (Math.Abs(diff) <= Math.Abs(dist1) || Math.Abs(diff) <= Math.Abs(dist2))
{
double new_dust = 0;
double new_gas = 0;
double new_a = (thePlanet.Mass + mass) / ((thePlanet.Mass / thePlanet.SemiMajorAxisAU) + (mass / a));
e = GetNewEccentricity(thePlanet, e, a, mass, new_a);
if (doMoons)
{
finished = DoMoons(thePlanet, mass, critMass, dustMass, gasMass);
}
if (!finished)
{
//Trace.TraceInformation("Collision between two planetesimals!\n {0:0.00} AU ({1:0.00}EM) + {2:0.00} AU ({3:0.00}EM = {4:0.00}EMd + {5:0.00}EMg [{6:0.00}EM]). {7:0.00} AU ({8:0.00})",
// the_planet.a, the_planet.mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES,
// a, mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES,
// dust_mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES,
// gas_mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES,
// crit_mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES,
// new_a, e);
var newMass = thePlanet.Mass + mass;
AccreteDust(ref newMass, ref new_dust, ref new_gas,
new_a, e, stellLuminosityRatio,
bodyInnerBound, bodyOuterBound);
thePlanet.SemiMajorAxisAU = new_a;
thePlanet.Eccentricity = e;
thePlanet.Mass = newMass;
thePlanet.DustMass += dustMass + new_dust;
thePlanet.GasMass += gasMass + new_gas;
if (thePlanet.Mass >= critMass)
{
thePlanet.IsGasGiant = true;
}
while (thePlanet.NextPlanet != null && thePlanet.NextPlanet.SemiMajorAxisAU < new_a)
{
nextPlanet = thePlanet.NextPlanet;
if (thePlanet == _planetHead)
{
_planetHead = nextPlanet;
}
else
{
prevPlanet.NextPlanet = nextPlanet;
}
thePlanet.NextPlanet = nextPlanet.NextPlanet;
nextPlanet.NextPlanet = thePlanet;
prevPlanet = nextPlanet;
}
}
finished = true;
break;
}
else
{
prevPlanet = thePlanet;
}
}
// Planetesimals didn't collide. Make it a planet.
if (!(finished))
{
thePlanet = new PlanetSeed(a, e, mass, dustMass, gasMass);
if (mass >= critMass)
{
thePlanet.IsGasGiant = true;
}
else
{
thePlanet.IsGasGiant = false;
}
if (_planetHead == null)
{
_planetHead = thePlanet;
thePlanet.NextPlanet = null;
}
else if (a < _planetHead.SemiMajorAxisAU)
{
thePlanet.NextPlanet = _planetHead;
_planetHead = thePlanet;
}
else if (_planetHead.NextPlanet == null)
{
_planetHead.NextPlanet = thePlanet;
thePlanet.NextPlanet = null;
}
else
{
nextPlanet = _planetHead;
while (nextPlanet != null && nextPlanet.SemiMajorAxisAU < a)
{
prevPlanet = nextPlanet;
nextPlanet = nextPlanet.NextPlanet;
}
thePlanet.NextPlanet = nextPlanet;
prevPlanet.NextPlanet = thePlanet;
}
}
}
private bool DoMoons(PlanetSeed planet, double mass, double critMass, double dustMass, double gasMass)
{
bool finished = false;
double existingMass = 0.0;
if (planet.FirstMoon != null)
{
for (PlanetSeed m = planet.FirstMoon; m != null; m = m.NextPlanet)
{
existingMass += m.Mass;
}
}
if (mass < critMass)
{
if (mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES < 2.5 && mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES > .0001 && existingMass < planet.Mass * .05)
{
PlanetSeed moon = new PlanetSeed(0, 0, mass, dustMass, gasMass);
if (moon.DustMass + moon.GasMass > planet.DustMass + planet.GasMass)
{
double tempDust = planet.DustMass;
double tempGas = planet.GasMass;
double tempMass = planet.Mass;
planet.DustMass = moon.DustMass;
planet.GasMass = moon.GasMass;
planet.Mass = moon.Mass;
moon.DustMass = tempDust;
moon.GasMass = tempGas;
moon.Mass = tempMass;
}
if (planet.FirstMoon == null)
{
planet.FirstMoon = moon;
}
else
{
moon.NextPlanet = planet.FirstMoon;
planet.FirstMoon = moon;
}
finished = true;
//Trace.TraceInformation("Moon captured... {0:0.00} AU ({1:0.00}EM) <- {2:0.00} EM",
// the_planet.a,
// the_planet.mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES,
// mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES);
}
//else
//{
// Trace.TraceInformation("Moon escapes... {0:0.00} AU ({1:0.00} EM){2} {3:0.00}L {4}",
// the_planet.a,
// the_planet.mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES,
// existing_mass < (the_planet.mass * .05) ? "" : " (big moons)",
// mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES,
// (mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES) >= 2.5 ? ", too big" : (mass * GlobalConstants.SUN_MASS_IN_EARTH_MASSES) <= .0001 ? ", too small" : "");
//}
}
return(finished);
}
// TODO documentation
/// <summary>
///
/// </summary>
/// <param name="stellarMassRatio"></param>
/// <param name="stellarLumRatio"></param>
/// <param name="innerDust"></param>
/// <param name="outerDust"></param>
/// <param name="outerPlanetLimit"></param>
/// <param name="dustDensityCoeff"></param>
/// <param name="seedSystem"></param>
/// <param name="doMoons"></param>
/// <returns></returns>
public List <PlanetSeed> GetPlanetaryBodies(double stellarMassRatio,
double stellarLumRatio, double innerDust, double outerDust,
double outerPlanetLimit, double dustDensityCoeff,
PlanetSeed seedSystem, bool doMoons)
{
SetInitialConditions(innerDust, outerDust);
double planet_inner_bound = NearestPlanet(stellarMassRatio);
double planet_outer_bound = outerPlanetLimit == 0
? FarthestPlanet(stellarMassRatio)
: outerPlanetLimit;
PlanetSeed seeds = seedSystem;
while (_dustLeft)
{
double a, e;
if (seeds != null)
{
a = seeds.SemiMajorAxisAU;
e = seeds.Eccentricity;
seeds = seeds.NextPlanet;
}
else
{
a = Utilities.RandomNumber(planet_inner_bound, planet_outer_bound);
e = Utilities.RandomEccentricity();
}
double mass = GlobalConstants.PROTOPLANET_MASS;
double dust_mass = 0;
double gas_mass = 0;
//Trace.TraceInformation("Checking {0:0.00} AU", a);
if (DustAvailable(InnerEffectLimit(a, e, mass), OuterEffectLimit(a, e, mass)))
{
//Trace.TraceInformation("Injecting protoplanet at {0:0.00} AU", a);
_dustDensity = dustDensityCoeff * Math.Sqrt(stellarMassRatio) * Math.Exp(-GlobalConstants.ALPHA * Math.Pow(a, (1.0 / GlobalConstants.N)));
double crit_mass = CriticalLimit(a, e, stellarLumRatio);
AccreteDust(ref mass, ref dust_mass, ref gas_mass, a, e, crit_mass, planet_inner_bound, planet_outer_bound);
dust_mass += GlobalConstants.PROTOPLANET_MASS;
if (mass > GlobalConstants.PROTOPLANET_MASS)
{
CoalescePlanetesimals(a, e, mass, crit_mass,
dust_mass, gas_mass,
stellarLumRatio,
planet_inner_bound, planet_outer_bound,
doMoons);
}
//Trace.TraceInformation(".. failed due to large neighbor.");
}
//Trace.TraceInformation(".. failed");
}
var seedList = new List <PlanetSeed>();
var next = _planetHead;
while (next != null)
{
seedList.Add(next);
next = next.NextPlanet;
}
return(seedList);
}