public bool Roll(int roll)
{
Rolls.Add(roll);
Score += roll;
if (IsStrike || IsSpare)
{
if (IsLast && Rolls.Count() == MaxRollsPerFrame)
{
return(false);
}
}
if (Previous != null)
{
if (Previous.IsSpare && Rolls.Count == 1)
{
Previous.AddSpareScore(roll);
}
else if (Previous.IsStrike)
{
Previous.AddSpareScore(roll);
}
var prePrevious = Previous.Previous;
if (!IsLast && prePrevious != null && prePrevious.IsStrike)
{
prePrevious.AddSpareScore(roll);
}
}
return(!IsStrike && !IsLast && Rolls.Count < 2);
}
