internal static Rotation[][][] GetRandomRotations(RotationOptions options)
{
var output = new List <List <Rotation> > [options.RotationCount];
var allAxies = InteractScript.allAxies.Take(options.Dimension);
for (int i = 0; i < options.RotationCount; i++)
{
output[i] = new List <List <Rotation> >();
var possibleAxies = new Stack <Axis>(allAxies.ToArray().Shuffle());
for (int j = 0; j < options.MinRotations ||
(j < options.MaxRotations && possibleAxies.Count >= options.MinLengthPerRotation &&
(Rnd.Range(0, 1f) <= options.ChanceToRepeat || j == 0)); j++)
{
AddRandomRotations(output, possibleAxies, options, ref i, ref j);
}
}
return(output.Select(a => a.Select(b => b.ToArray())).Select(a => a.ToArray()).ToArray());
}
private static void AddRandomRotations(List <List <Rotation> >[] output, Stack <Axis> possibleAxies, RotationOptions options, ref int i, ref int j)
{
output[i].Add(new List <Rotation>());
int rnd = Rnd.Range(options.MinLengthPerRotation,
Math.Min(Math.Min(possibleAxies.Count, options.MaxLengthPerRotation), possibleAxies.Count() - options.MinRotations + 1) + 1);
for (int k = 0; k < rnd; k++)
{
output[i][j].Add(new Rotation(Rnd.Range(0, 1f) > options.ChanceForNegativeRotation, possibleAxies.Pop()));
}
switch (output[i][j].Count)
{
case 1: // Positive 1-cycle rotations are the same as 0-cycle rotations.
output[i][j][0].IsNegative = true;
break;
case 2: // Equal 2-cycle rotations are the same as 2 1-cycle rotations.
if (output[i][j][0].IsNegative == output[i][j][1].IsNegative)
{
output[i][j][0].IsNegative = !output[i][j][0].IsNegative;
}
break;
}
}
