public override bool UrgentAction(out ActorAction?ret)
{
ret = null;
Predicate <Point>?is_cleared = null;
var threats_at = threats.ThreatWhere(m_Zone.m); // should have both of these null or non-null; other cases are formal completeness
if (0 < threats_at.Count)
{
is_cleared = pt => !threats_at.Contains(pt);
}
var tourism_at = tourism.In(m_Zone.m);
if (0 < tourism_at.Count)
{
is_cleared = is_cleared.And(pt => !tourism_at.Contains(pt));
}
else if (null == is_cleared)
{
_isExpired = true;
return(true);
}
m_Unverified.RemoveWhere(is_cleared);
m_Unverified.Remove(m_Actor.Location.Position);
if (0 >= m_Unverified.Count)
{
_isExpired = true;
return(true);
}
if (0 < oai.InterruptLongActivity())
{
return(false);
}
ret = Pathing();
return(true);
}
public ClearZone(int t0, Actor who, ZoneLoc dest) : base(t0, who)
{
m_Zone = dest;
threats = who.Threats // these two should agree on whether they're null or not
#if DEBUG
?? throw new ArgumentNullException("who.Threats")
#endif
;
tourism = who.InterestingLocs
#if DEBUG
?? throw new ArgumentNullException("who.InterestingLocs")
#endif
;
Func <Point, bool> ok = pt => m_Zone.Rect.Contains(pt);
m_Unverified.UnionWith(threats.ThreatWhere(dest.m).Where(ok));
m_Unverified.UnionWith(tourism.In(dest.m).Where(ok));
#if OBSOLETE
// the civilian case
if (null == threats && null == sights_to_see)
{
m_Unverified.UnionWith(m_Zone.Rect.Where(pt => who.CanEnter(new Location(m_Zone.m, pt)))); // \todo? eliminate GC thrashing
}
#endif
// nonserialized fields
oai = (m_Actor.Controller as ObjectiveAI)
#if DEBUG
?? throw new ArgumentNullException("who.Controller is ObjectiveAI")
#endif
;
}
