public bool CurrentlyAllowsFallSpring(UnitMove move)
{
// does not check pre-conditions like "is the proper unit in the edge.source"
// we rely on the UnitMove generator to check these and only generate valid possible moves
// this is only checking the given move is valid based on all other moves in this set
if (move.IsHold)
{
return(!TargetTerritories.Contains(move.Edge.Source.Territory));
}
else if (move.IsDisband)
{
bool otherPowerMovingIn = this.Where(u => u.Unit.Power != move.Unit.Power)
.Select(u => u.Edge.Target?.Territory)
.Contains(move.Edge.Source.Territory);
IEnumerable <MapNode> adjacentMapNodes = move.Unit.MyMap.AdjacentInEdges(move.Edge.Source).Select(e => e.Source);
bool otherPowerHoldingAdjacent = Holds.Where(u => u.Unit.Power != move.Unit.Power)
.Select(u => u.Edge.Source)
.Intersect(adjacentMapNodes)
.Any();
return(otherPowerHoldingAdjacent && otherPowerMovingIn);
}
else if (move.IsConvoy)
{
bool necessaryFleetsHolding = move.ConvoyRoute.All(mn => Holds.Select(um => um.Edge.Target).Contains(mn));
bool targetTerritoryEmpty = !TargetTerritories.Contains(move.Edge.Target.Territory);
return(necessaryFleetsHolding && targetTerritoryEmpty);
}
else
{
bool targetTerritoryEmpty = !TargetTerritories.Contains(move.Edge.Target.Territory);
bool noSwap = !this.Any(um => um.Edge.Source.Territory == move.Edge.Target.Territory && um.Edge.Target.Territory == move.Edge.Source.Territory);
return(targetTerritoryEmpty && noSwap);
}
}
public bool CurrentlyAllowsWinter(UnitMove move, int delta)
{
if (move.IsBuild)
{
if (TargetTerritories.Contains(move.Edge.Target.Territory))
{
return(false);
}
if (this.Count(um => um.Unit.Power == move.Unit.Power) == Math.Abs(delta))
{
return(false);
}
return(true);
}
else if (move.IsDisband)
{
if (SourceTerritories.Contains(move.Edge.Source.Territory))
{
return(false);
}
if (this.Count(um => um.Unit.Power == move.Unit.Power) == Math.Abs(delta))
{
return(false);
}
return(true);
}
else
{
return(false);
}
}