public void Add(WorldUpdate src)
{
if (src is Fork fork)
{
foreach (var act in fork.m_Options)
{
Add(act);
}
}
else if (src.IsLegal() && !m_Options.Contains(src))
{
if (src is Join join)
{
var ub = m_Options.Count;
while (0 <= --ub)
{
if (m_Options[ub] is Join prior_join && prior_join.ForkMerge(join))
{
return;
}
}
}
m_Options.Add(src);
}
}
public SharedPlan(WorldUpdate src, Condition <Actor> done)
{
#if DEBUG
if (!src.IsLegal())
{
throw new InvalidOperationException("illegal objective");
}
#endif
m_Plan = src;
m_Target = done;
}
public override bool IsLegal()
{
var ub = m_Options.Count;
while (0 <= --ub)
{
if (m_Options[ub].IsLegal())
{
return(m_Sequel.IsLegal());
}
}
return(false);
}
public bool IsLegal()
{
return(!m_Target.IsDone() && m_Plan.IsLegal());
}
