internal override List <Position> GetMovablePositions(Game game)
{
return(Position.Whole
.Where(pos => Position.Distance(pos, Position) == 1)
.Where(pos => game.GetPieceAt(pos) == null)
.SelectMany(middlePos =>
{
int diffX = middlePos.X - Position.X;
int diffY = middlePos.Y - Position.Y;
if (diffX != 0)
{
return new List <Position>
{
new Position(middlePos.X + diffX, Position.Y - 1),
new Position(middlePos.X + diffX, Position.Y + 1)
};
}
else
{
return new List <Position>
{
new Position(Position.X - 1, middlePos.Y + diffY),
new Position(Position.X + 1, middlePos.Y + diffY)
};
}
})
.Where(pos => Position.IsOnTable(pos))
.Where(pos => !IsSameColor(game.GetPieceAt(pos)))
.ToList());
}
internal override List <Position> GetMovablePositions(Game game)
{
return(Position.Whole
.Where(pos => pos.X == Position.X || pos.Y == Position.Y)
.Where(pos => Position.Route(Position, pos).All(routePos => game.GetPieceAt(routePos) == null))
.Where(pos => !IsSameColor(game.GetPieceAt(pos)))
.ToList());
}
internal override List <Position> GetMovablePositions(Game game)
{
return(Position.Palaces[Color]
.Where(pos => Position.Distance(pos, Position) == 2 && pos.X != Position.X && pos.Y != Position.Y)
.Where(pos => !IsSameColor(game.GetPieceAt(pos)))
.ToList());
}
internal override List <Position> GetMovablePositions(Game game)
{
return(Position.Halves[Color]
.Where(pos => Position.Distance(pos, Position) == 4 && pos.X != Position.X && pos.Y != Position.Y)
.Where(pos =>
{
var route = Position.Route(Position, pos);
if (route.Count != 1)
{
return false;
}
return game.GetPieceAt(route[0]) == null;
})
.Where(pos => !IsSameColor(game.GetPieceAt(pos)))
.ToList());
}
internal override List <Position> GetMovablePositions(Game game)
{
var list = new List <Position>();
list.AddRange(Position.Palaces[Color]
.Where(pos => Position.Distance(pos, Position) == 1)
.Where(pos => !IsSameColor(game.GetPieceAt(pos)))
);
list.AddRange(
new List <Position> {
game.Pieces.First(piece => piece is General && piece != this).Position
}
.Where(pos => Position.X == pos.X)
.Where(pos => Position.Route(pos, Position).All(routePos => game.GetPieceAt(routePos) == null))
);
return(list);
}
internal override List <Position> GetMovablePositions(Game game)
{
var list = new List <Position>();
list.AddRange(
Position.Whole
.Where(pos => pos.X == Position.X || pos.Y == Position.Y)
.Where(pos => Position.Route(Position, pos).All(routePos => game.GetPieceAt(routePos) == null))
.Where(pos => game.GetPieceAt(pos) == null)
);
list.AddRange(
Position.Whole
.Where(pos => pos.X == Position.X || pos.Y == Position.Y)
.Where(pos => game.GetPieceAt(pos) != null && !IsSameColor(game.GetPieceAt(pos)))
.Where(pos => Position.Route(Position, pos).Count(routePos => game.GetPieceAt(routePos) != null) == 1)
);
return(list);
}
internal override List <Position> GetMovablePositions(Game game)
{
var list = new List <Position>();
list.AddRange(
new List <Position> {
Position.move(0, 1 * UpwardFactor)
}.Where(pos => !IsSameColor(game.GetPieceAt(pos)))
);
if (!Position.Halves[Color].Contains(Position))
{
list.AddRange(
new List <Position> {
Position.move(-1, 0), Position.move(1, 0)
}.Where(pos => !IsSameColor(game.GetPieceAt(pos)))
);
}
return(list);
}
