public bool CanEnterCell(World world, Actor self, CPos cell, out int movementCost, Actor ignoreActor = null, CellConditions check = CellConditions.All)
{
if ((movementCost = MovementCostForCell(world, cell)) == int.MaxValue)
{
return(false);
}
if (SharesCell && world.ActorMap.HasFreeSubCell(cell))
{
return(true);
}
if (check.HasFlag(CellConditions.TransientActors))
{
var canIgnoreMovingAllies = self != null && !check.HasFlag(CellConditions.BlockedByMovers);
var needsCellExclusively = self == null || Crushes == null || !Crushes.Any();
foreach (var a in world.ActorMap.GetUnitsAt(cell))
{
if (a == ignoreActor)
{
continue;
}
// Neutral/enemy units are blockers. Allied units that are moving are not blockers.
if (canIgnoreMovingAllies && self.Owner.Stances[a.Owner] == Stance.Ally && IsMovingInMyDirection(self, a))
{
continue;
}
// Non-sharable unit can enter a cell with shareable units only if it can crush all of them.
if (needsCellExclusively)
{
return(false);
}
var crushables = a.TraitsImplementing <ICrushable>();
if (!crushables.Any())
{
return(false);
}
foreach (var crushable in crushables)
{
if (!crushable.CrushableBy(Crushes, self.Owner))
{
return(false);
}
}
}
}
return(true);
}
public SubCell GetAvailableSubCell(
World world, Actor self, CPos cell, SubCell preferredSubCell = SubCell.Any, Actor ignoreActor = null, CellConditions check = CellConditions.All)
{
if (MovementCostForCell(world, cell) == int.MaxValue)
{
return(SubCell.Invalid);
}
if (check.HasFlag(CellConditions.TransientActors))
{
var canIgnoreMovingAllies = self != null && !check.HasFlag(CellConditions.BlockedByMovers);
var needsCellExclusively = self == null || Crushes == null || !Crushes.Any();
Func <Actor, bool> checkTransient = a =>
{
if (a == ignoreActor)
{
return(false);
}
// Neutral/enemy units are blockers. Allied units that are moving are not blockers.
if (canIgnoreMovingAllies && self.Owner.Stances[a.Owner] == Stance.Ally && IsMovingInMyDirection(self, a))
{
return(false);
}
// Non-sharable unit can enter a cell with shareable units only if it can crush all of them.
if (needsCellExclusively)
{
return(true);
}
var crushables = a.TraitsImplementing <ICrushable>();
if (!crushables.Any())
{
return(true);
}
foreach (var crushable in crushables)
{
if (!crushable.CrushableBy(Crushes, self.Owner))
{
return(true);
}
}
return(false);
};
if (!SharesCell)
{
return(world.ActorMap.AnyUnitsAt(cell, SubCell.FullCell, checkTransient) ? SubCell.Invalid : SubCell.FullCell);
}
return(world.ActorMap.FreeSubCell(cell, preferredSubCell, checkTransient));
}
if (!SharesCell)
{
return(world.ActorMap.AnyUnitsAt(cell, SubCell.FullCell) ? SubCell.Invalid : SubCell.FullCell);
}
return(world.ActorMap.FreeSubCell(cell, preferredSubCell));
}
