public IEnumerable <Move> GetAvailableMoves(Owner owner = Owner.None, bool reverse = false)
{
bool cached = false;
if (owner == Owner.None)
{
cached = _moves.ContainsKey(Owner.Player1) && _moves.ContainsKey(Owner.Player2);
}
else
{
cached = _moves.ContainsKey(owner);
}
if (!cached)
{
IEnumerable <Point> sourceSet;
if (owner == Owner.Player1)
{
List <Move> results = new List <Move>();
foreach (Point p in PieceGrid.Amazon1Points)
{
if (reverse)
{
results.AddRange(PieceGrid.GetReverseMovesFromPoint(p, owner));
}
else
{
results.AddRange(PieceGrid.GetMovesFromPoint(p));
}
}
_moves[owner] = results;
}
else if (owner == Owner.Player2)
{
List <Move> results = new List <Move>();
foreach (Point p in PieceGrid.Amazon2Points)
{
if (reverse)
{
results.AddRange(PieceGrid.GetReverseMovesFromPoint(p, owner));
}
else
{
results.AddRange(PieceGrid.GetMovesFromPoint(p));
}
}
_moves[owner] = results;
}
else
{
List <Move> results1 = new List <Move>();
List <Move> results2 = new List <Move>();
sourceSet = PieceGrid.Amazon1Points.Union(PieceGrid.Amazon2Points);
foreach (Point p in PieceGrid.Amazon1Points)
{
if (reverse)
{
results1.AddRange(PieceGrid.GetReverseMovesFromPoint(p, Owner.Player1));
}
else
{
results1.AddRange(PieceGrid.GetMovesFromPoint(p));
}
}
_moves[Owner.Player1] = results1;
foreach (Point p in PieceGrid.Amazon2Points)
{
if (reverse)
{
results2.AddRange(PieceGrid.GetReverseMovesFromPoint(p, Owner.Player2));
}
else
{
results2.AddRange(PieceGrid.GetMovesFromPoint(p));
}
}
_moves[Owner.Player2] = results2;
}
}
if (owner == Owner.None)
{
return(_moves[Owner.Player1].Union(_moves[Owner.Player2]));
}
else
{
return(_moves[owner]);
}
}
