public static IEnumerable <ISwitchableGroup <T> > Mutate <T>(this ISwitchableGroup <T> switchableGroup, IRando rando,
double mutationRate, IEnumerable <Guid> newGuids)
{
var mutationSource = rando.MakeSwitchables <T>(switchableGroup.KeyCount).ToMoveNext();
foreach (var newGuid in newGuids)
{
var switchables = switchableGroup.Switchables.Mutate(rando.ToBoolEnumerator(mutationRate),
t => mutationSource.Next());
yield return(new SwitchableGroupImpl <T>
(
guid: newGuid,
keyCount: switchableGroup.KeyCount,
switchables: switchables
));
}
}
public static IEnumerable <ISwitchable <T> > MakeSwitchables <T>(this IRando random, int keyCount)
{
if (typeof(T) == typeof(uint))
{
return((IEnumerable <ISwitchable <T> >)random.ToUintEnumerator(((uint)1) << (keyCount - 1)).ToUintSwitchable(keyCount));
}
if (typeof(T) == typeof(ulong))
{
return((IEnumerable <ISwitchable <T> >)random.ToUlongEnumerator(((ulong)1) << (keyCount - 1)).ToUlongSwitchable(keyCount));
}
if (typeof(T) == typeof(bool[]))
{
return((IEnumerable <ISwitchable <T> >)random.ToBoolEnumerator(0.5).Chunk(keyCount).Select(b => b.ToSwitchableBitArray()));
}
if (typeof(T) == typeof(int[]))
{
return((IEnumerable <ISwitchable <T> >)random.ToRandomEnumerator().Select(r => r.ToSwitchableIntArray(keyCount)));
}
throw new Exception("unhandled switchable type");
}
public override IGeneBits NewBlock(IRando rando)
{
return(rando.ToBoolEnumerator(0.5).Take(BitCount)
.ToGeneBits());
}
public IGene Mutate(IRando rando)
{
return(rando.ToBoolEnumerator(0.5).Take(Bits.Count)
.ToGeneBits());
}
