/// <summary>
/// This function generates and populates our stars.
/// </summary>
/// <param name="ourBag">The Ddice object used for our PRNG</param>
/// <param name="ourSystem">The solar system we are creating stars for</param>
public static void CreateStars( Dice ourBag, StarSystem ourSystem )
{
var numStars = 0;
//determine the number of stars
if (OptionCont.GetNumberOfStars() != -1)
{
numStars = OptionCont.GetNumberOfStars();
}
else
{
// We take the roll, add 2 if it's in an open cluster,subtract 1 if not, then divide it by 5.
// This matches the roll probablity to the table.
numStars = (int) Math.Floor(( ourBag.GurpsRoll() + ( OptionCont.InOpenCluster ? 2 : -1 ) ) / 5.0);
if (numStars < 1)
{
numStars = 1;
}
if (numStars > 3)
{
numStars = 3;
}
}
//creating the stars.
for (var i = 0; i < numStars; i++)
{
if (i == 0)
{
ourSystem.AddStar(Star.IsPrimary, Star.IsPrimary, i);
//manually set the first star's mass and push it to the max mass setting
ourSystem.SysStars[0].UpdateMass(RollStellarMass(ourBag, Star.IsPrimary));
ourSystem.MaxMass = ourSystem.SysStars[0].CurrMass;
//generate the star
GenerateAStar(ourSystem.SysStars[i], ourBag, ourSystem.MaxMass, ourSystem.SysName);
}
if (i == 1)
{
ourSystem.AddStar(Star.IsSecondary, Star.IsPrimary, i);
//generate the star
GenerateAStar(ourSystem.SysStars[i], ourBag, ourSystem.MaxMass, ourSystem.SysName);
}
if (i == 2)
{
ourSystem.AddStar(Star.IsTrinary, Star.IsPrimary, i);
//generate the star
GenerateAStar(ourSystem.SysStars[i], ourBag, ourSystem.MaxMass, ourSystem.SysName);
}
GasGiantFlag(ourSystem.SysStars[i], ourBag.GurpsRoll());
}
//now generate orbitals
if (ourSystem.CountStars() > 1)
{
PlaceOurStars(ourSystem, ourBag);
}
}
/// <summary>
/// This places our stars around the primary, as well as creating the secondary stars if called for
/// </summary>
/// <param name="ourSystem">The star system to be added to.</param>
/// <param name="velvetBag">Our Ddice object.</param>
private static void PlaceOurStars( StarSystem ourSystem, Dice velvetBag )
{
//initiate the variables we need to ensure distances are kept
var maxOrbitalDistance = 600.0;
var starLimit = ourSystem.SysStars.Count;
for (var i = 1; i < starLimit; i++)
{
var modifiers = 0;
var minOrbitalDistance = ourSystem.SysStars[i - 1].OrbitalRadius;
//set the min and max conditions for the first star here.
int roll;
double tempVal;
if (ourSystem.SysStars[i].ParentId == 0 || ourSystem.SysStars[i].ParentId == Star.IsPrimary)
{
//apply modifiers
if (ourSystem.SysStars[i].SelfId == Star.IsTrinary)
{
modifiers = modifiers + 6;
}
if (OptionCont.ForceGardenFavorable != null)
{
if ((bool) OptionCont.ForceGardenFavorable && ourSystem.SysStars[i].ParentId == Star.IsPrimary)
{
modifiers = modifiers + 4;
}
}
if (minOrbitalDistance == 600.0)
{
//in this situation, orbital 3 or so can't be safely placed because the range is 0.
// so we autogenerate it.
tempVal = velvetBag.RollRange(25, 25);
ourSystem.SysStars[i].OrbitalSep = 5;
ourSystem.SysStars[ourSystem.Star2Index].OrbitalRadius = ourSystem.SysStars[ourSystem.Star2Index].OrbitalRadius - tempVal;
ourSystem.SysStars[i].OrbitalRadius = 600 + tempVal;
ourSystem.SysStars[i].DistFromPrimary = ourSystem.SysStars[i].OrbitalRadius;
}
else
{
do
{
//roll the Ddice and generate the orbital radius
do
{
roll = velvetBag.GurpsRoll(modifiers);
if (roll <= 6)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepVeryclose;
}
if (roll >= 7 && roll <= 9)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepClose;
}
if (roll >= 10 && roll <= 11)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepModerate;
}
if (roll >= 12 && roll <= 14)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepWide;
}
if (roll >= 15)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepDistant;
}
tempVal = velvetBag.Rng(2, 6) * GetSepModifier(ourSystem.SysStars[i].OrbitalSep);
}
while (tempVal <= minOrbitalDistance);
//if (ourSystem.sysStars[i].selfID == 2) tempVal = this.velvetBag.six(1, 7) * ourSystem.sysStars[i].getSepModifier();
var lowerBound = tempVal - .5 * GetSepModifier(ourSystem.SysStars[i].OrbitalSep);
var higherBound = .5 * GetSepModifier(ourSystem.SysStars[i].OrbitalSep) + tempVal;
//set for constraints
if (lowerBound < minOrbitalDistance)
{
lowerBound = minOrbitalDistance;
}
if (higherBound > maxOrbitalDistance)
{
higherBound = maxOrbitalDistance;
}
ourSystem.SysStars[i].OrbitalRadius = tempVal;
ourSystem.SysStars[i].DistFromPrimary = ourSystem.SysStars[i].OrbitalRadius;
}
while (ourSystem.SysStars[i].OrbitalRadius <= minOrbitalDistance);
//let's see if it has a subcompanion
if (ourSystem.SysStars[i].OrbitalSep == Star.OrbsepDistant)
{
roll = velvetBag.GurpsRoll();
if (roll >= 11)
{
//generate the subcompanion
var order = 0;
if (ourSystem.SysStars[i].SelfId == Star.IsSecondary)
{
order = Star.IsSeccomp;
}
if (ourSystem.SysStars[i].SelfId == Star.IsTrinary)
{
order = Star.IsTricomp;
}
//add the star
ourSystem.AddStar(order, ourSystem.SysStars[i].SelfId, i + 1);
ourSystem.SysStars[starLimit].Name = Star.GenGenericName(ourSystem.SysName, i + 1);
//set the name, then generate the star
ourSystem.SysStars[starLimit].ParentName = ourSystem.SysStars[i].Name;
GenerateAStar(ourSystem.SysStars[starLimit], velvetBag, ourSystem.SysStars[i].CurrMass, ourSystem.SysName);
starLimit++; //increment the total number of stars we have generated
}
}
}
}
else
{
maxOrbitalDistance = ourSystem.SysStars[ourSystem.GetStellarParentId(ourSystem.SysStars[i].ParentId)].OrbitalRadius;
//roll for seperation
do
{
//roll the Ddice
roll = velvetBag.GurpsRoll(-6);
if (roll <= 6)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepVeryclose;
}
if (roll >= 7 && roll <= 9)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepClose;
}
if (roll >= 10 && roll <= 11)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepModerate;
}
if (roll >= 12 && roll <= 14)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepWide;
}
if (roll >= 15)
{
ourSystem.SysStars[i].OrbitalSep = Star.OrbsepDistant;
}
//set the subcompanion orbital
tempVal = velvetBag.Rng(2, 6) * GetSepModifier(ourSystem.SysStars[i].OrbitalSep);
tempVal -= 0.5 * GetSepModifier(ourSystem.SysStars[i].OrbitalSep);
var higherBound = .5 * GetSepModifier(ourSystem.SysStars[i].OrbitalSep) + tempVal;
if (higherBound > maxOrbitalDistance)
{
higherBound = maxOrbitalDistance;
}
ourSystem.SysStars[i].OrbitalRadius = tempVal;
ourSystem.SysStars[i].DistFromPrimary = ourSystem.SysStars[i].OrbitalRadius + maxOrbitalDistance;
}
while (ourSystem.SysStars[i].OrbitalRadius > maxOrbitalDistance);
}
CalcEccentricity(velvetBag, ourSystem.SysStars[i]);
var parent = ourSystem.GetStellarParentId(ourSystem.SysStars[i].ParentId);
ourSystem.SysStars[i].OrbitalPeriod = Star.CalcOrbitalPeriod(ourSystem.SysStars[parent].CurrMass, ourSystem.SysStars[i].CurrMass, ourSystem.SysStars[i].OrbitalRadius);
}
}
