public static void WhiteWin(CreeperBoard board)
{
Position startPosition;
Position endPosition;
Move move;
bool pausePrint = false;
for (int i = 0; i < 4; i++)
{
startPosition = new Position(i, i + 1);
endPosition = new Position(i + 1, i + 2);
move = new Move(startPosition, endPosition, CreeperColor.Fire);
board.Move(move);
board.PrintToConsole(pausePrint);
}
for (int i = 0; i < 3; i++)
{
startPosition = new Position(i, i + 2);
endPosition = new Position(i + 1, i + 3);
move = new Move(startPosition, endPosition, CreeperColor.Fire);
board.Move(move);
board.PrintToConsole(pausePrint);
}
startPosition = new Position(4, 6);
endPosition = new Position(5, 5);
move = new Move(startPosition, endPosition, CreeperColor.Fire);
board.Move(move);
board.PrintToConsole(pausePrint);
startPosition = new Position(4, 5);
endPosition = new Position(5, 4);
move = new Move(startPosition, endPosition, CreeperColor.Fire);
board.Move(move);
board.PrintToConsole(pausePrint);
if(board.GetGameState(CreeperColor.Fire) == CreeperGameState.Complete)
{
Console.WriteLine("White wins!");
}
}
public void PushMove(Move move)
{
MoveHistory.Push(move);
((move.PlayerColor == CreeperColor.Ice) ? BlackPegs : WhitePegs).Remove(PegBoard[move.StartPosition.Row, move.StartPosition.Column]);
PegBoard[move.StartPosition.Row, move.StartPosition.Column].Color = CreeperColor.Empty;
PegBoard[move.EndPosition.Row, move.EndPosition.Column].Color = move.PlayerColor;
((move.PlayerColor == CreeperColor.Ice) ? BlackPegs : WhitePegs ).Add(PegBoard[move.EndPosition.Row, move.EndPosition.Column]);
if (IsFlipMove(move))
{
Flip(move);
}
else if (IsCaptureMove(move))
{
Capture(move);
}
GameStateHistory.Push(CouldBeFinished(move.PlayerColor) ? GetGameState(move.PlayerColor) : CreeperGameState.Unfinished);
}
public bool IsValidMove(Move move)
{
bool valid = true;
//is the move in bounds?
if (!IsValidPosition(move.StartPosition.Row, move.StartPosition.Column, PieceType.Peg)
|| !IsValidPosition(move.EndPosition.Row, move.EndPosition.Column, PieceType.Peg))
{
valid = false;
}
//Does the start space have the player's piece?
else if (PegBoard[move.StartPosition.Row, move.StartPosition.Column].Color != move.PlayerColor)
{
valid = false;
}
//Is the end space empty?
else if (PegBoard[move.EndPosition.Row, move.EndPosition.Column].Color != CreeperColor.Empty)
{
valid = false;
}
else
{
if ((Math.Abs(move.StartPosition.Row - move.EndPosition.Row) > 1)
|| (Math.Abs(move.StartPosition.Column - move.EndPosition.Column) > 1)
|| (move.StartPosition.Equals(move.EndPosition)))
{
valid = false;
}
if (Math.Abs(Math.Abs(move.StartPosition.Row - move.EndPosition.Row) - Math.Abs(move.StartPosition.Column - move.EndPosition.Column)) == 2
&& PegBoard[move.StartPosition.Row + ((move.EndPosition.Row - move.StartPosition.Row) / 2), move.StartPosition.Column + ((move.EndPosition.Column - move.StartPosition.Column) / 2)].Color == move.PlayerColor.Opposite())
{
valid = true;
}
else if (move.PlayerColor == CreeperColor.Empty || move.PlayerColor == CreeperColor.Invalid)
{
throw new ArgumentOutOfRangeException(move.ToString());
}
}
return valid;
}
public bool IsFlipMove(Move move)
{
return Math.Abs(move.StartPosition.Row - move.EndPosition.Row) * Math.Abs(move.StartPosition.Column - move.EndPosition.Column) == 1;
}
public bool IsCaptureMove(Move move)
{
return (Math.Abs(move.StartPosition.Row - move.EndPosition.Row) == 2) != (Math.Abs(move.StartPosition.Column - move.EndPosition.Column) == 2);
}
public AIBoardNode GetFlippedTileCopy(Move move)
{
return new AIBoardNode(GetFlippedTile(move));
}
public static Position GetFlippedPosition(Move move)
{
CardinalDirection direction = move.EndPosition.Row < move.StartPosition.Row ? (move.EndPosition.Column < move.StartPosition.Column ? CardinalDirection.Northwest : CardinalDirection.Northeast)
: (move.EndPosition.Column < move.StartPosition.Column ? CardinalDirection.Southwest : CardinalDirection.Southeast);
switch (direction)
{
case CardinalDirection.Northwest:
return new Position(move.EndPosition.Row, move.EndPosition.Column);
case CardinalDirection.Northeast:
return new Position(move.EndPosition.Row, move.EndPosition.Column - 1);
case CardinalDirection.Southwest:
return new Position(move.EndPosition.Row - 1, move.EndPosition.Column);
case CardinalDirection.Southeast:
return new Position(move.StartPosition.Row, move.StartPosition.Column);
default:
throw new ArgumentException("No flipped tile for this move.");
}
}
private void UnCapture(Move move)
{
if (move.StartPosition.Row + 2 == move.EndPosition.Row && move.StartPosition.Column == move.EndPosition.Column)
{
PegBoard[move.StartPosition.Row + 1, move.StartPosition.Column].Color = move.PlayerColor.Opposite();
((move.PlayerColor == CreeperColor.Ice) ? WhitePegs : BlackPegs).Add(PegBoard[move.StartPosition.Row + 1, move.StartPosition.Column]);
}
else if (move.StartPosition.Row - 2 == move.EndPosition.Row && move.StartPosition.Column == move.EndPosition.Column)
{
PegBoard[move.StartPosition.Row - 1, move.StartPosition.Column].Color = move.PlayerColor.Opposite();
((move.PlayerColor == CreeperColor.Ice) ? WhitePegs : BlackPegs).Add(PegBoard[move.StartPosition.Row - 1, move.StartPosition.Column]);
}
else if (move.StartPosition.Row == move.EndPosition.Row && move.StartPosition.Column + 2 == move.EndPosition.Column)
{
PegBoard[move.StartPosition.Row, move.StartPosition.Column + 1].Color = move.PlayerColor.Opposite();
((move.PlayerColor == CreeperColor.Ice) ? WhitePegs : BlackPegs).Add(PegBoard[move.StartPosition.Row, move.StartPosition.Column + 1]);
}
else if (move.StartPosition.Row == move.EndPosition.Row && move.StartPosition.Column - 2 == move.EndPosition.Column)
{
PegBoard[move.StartPosition.Row, move.StartPosition.Column - 1].Color = move.PlayerColor.Opposite();
((move.PlayerColor == CreeperColor.Ice) ? WhitePegs : BlackPegs).Add(PegBoard[move.StartPosition.Row, move.StartPosition.Column - 1]);
}
}
private void Flip(Move move)
{
Piece tile = GetFlippedTile(move);
if (!IsCorner(tile))
{
tile.Color = move.PlayerColor;
}
}
private Piece GetFlippedTile(Move move)
{
return Tiles.At(GetFlippedPosition(move));
}
private void Capture(Move move)
{
Pegs.At(GetCapturedPegPosition(move)).Color = CreeperColor.Empty;
}
public bool Move(Move move)
{
bool isValid = false;
if (IsValidMove(move))
{
isValid = true;
Pegs.First(x => x.Position.Equals(move.StartPosition)).Color = CreeperColor.Empty;
Pegs.First(x => x.Position.Equals(move.EndPosition)).Color = move.PlayerColor;
if (IsFlipMove(move))
{
Flip(move);
}
else if (IsCaptureMove(move))
{
Capture(move);
}
}
return isValid;
}
public bool IsValidMove(Move move)
{
return Pegs.At(move.StartPosition).PossibleMoves(this).Any(x => x.EndPosition == move.EndPosition && x.PlayerColor == move.PlayerColor);
}
private void Flip(Move move)
{
AIBoardNode tile = GetFlippedTile(move);
if (tile.Color != CreeperColor.Invalid)
{
TileHistory.Push(tile.Color);
if (tile.Color == CreeperColor.Empty)
{
tile.Color = move.PlayerColor;
AddTileToTeam(tile);
}
else if (tile.Color != move.PlayerColor)
{
RemoveTileFromTeam(tile);
tile.Color = move.PlayerColor;
AddTileToTeam(tile);
}
UpdateListHeads(tile.Row, tile.Column, tile.Color);
}
}
public Move(Move move)
{
this.StartPosition = new Position(move.StartPosition);
this.EndPosition = new Position(move.EndPosition);
this.PlayerColor = move.PlayerColor;
}
private AIBoardNode GetFlippedTile(Move move)
{
CardinalDirection direction = move.EndPosition.Row < move.StartPosition.Row ? (move.EndPosition.Column < move.StartPosition.Column ? CardinalDirection.Northwest : CardinalDirection.Northeast)
: (move.EndPosition.Column < move.StartPosition.Column ? CardinalDirection.Southwest : CardinalDirection.Southeast);
switch (direction)
{
case CardinalDirection.Northwest:
return TileBoard[move.EndPosition.Row, move.EndPosition.Column];
case CardinalDirection.Northeast:
return TileBoard[move.EndPosition.Row, move.EndPosition.Column - 1];
case CardinalDirection.Southwest:
return TileBoard[move.EndPosition.Row - 1, move.EndPosition.Column];
case CardinalDirection.Southeast:
return TileBoard[move.StartPosition.Row, move.StartPosition.Column];
default:
throw new ArgumentOutOfRangeException(move.ToString() + " must be a flipping move!");
}
}
public Move[] AllPossibleMoves(CreeperColor color)
{
if (color == CreeperColor.Invalid || color == CreeperColor.Empty) throw new ArgumentOutOfRangeException(color.ToString());
Position startPosition = new Position();
Move[] possibleMoves = new Move[100];
int index = 0;
foreach (AIBoardNode peg in (color == CreeperColor.Ice) ? BlackPegs : WhitePegs)
{
startPosition = new Position(peg.Row, peg.Column);
Move[] movesForPeg = new Move[]
{
new Move(startPosition, new Position(peg.Row + 1, peg.Column), color),
new Move(startPosition, new Position(peg.Row - 1, peg.Column), color),
new Move(startPosition, new Position(peg.Row, peg.Column + 1), color),
new Move(startPosition, new Position(peg.Row, peg.Column - 1), color),
new Move(startPosition, new Position(peg.Row + 1, peg.Column + 1), color),
new Move(startPosition, new Position(peg.Row + 1, peg.Column - 1), color),
new Move(startPosition, new Position(peg.Row - 1, peg.Column + 1), color),
new Move(startPosition, new Position(peg.Row - 1, peg.Column - 1), color),
new Move(startPosition, new Position(peg.Row + 2, peg.Column), color),
new Move(startPosition, new Position(peg.Row - 2, peg.Column), color),
new Move(startPosition, new Position(peg.Row, peg.Column + 2), color),
new Move(startPosition, new Position(peg.Row, peg.Column - 2), color),
};
for (int i = 0; i < movesForPeg.Length; i++)
{
if (IsValidMove(movesForPeg[i]))
{
possibleMoves[index++] = movesForPeg[i];
}
}
}
Array.Resize(ref possibleMoves, index);
return possibleMoves;
}
private void UnFlip(Move move)
{
AIBoardNode tile = GetFlippedTile(move);
if (tile.Color != CreeperColor.Invalid)
{
CreeperColor color = TileHistory.Pop();
if (color == CreeperColor.Empty)
{
RemoveTileFromTeam(tile);
tile.Color = color;
}
// Flipping opposite team's tile.
else if (color == move.PlayerColor.Opposite())
{
RemoveTileFromTeam(tile);
tile.Color = color;
AddTileToTeam(tile);
}
UpdateListHeads(tile.Row, tile.Column, move.PlayerColor.Opposite());
}
}
public static Position GetCapturedPegPosition(Move move)
{
foreach (CardinalDirection direction in new[] { CardinalDirection.North, CardinalDirection.South, CardinalDirection.East, CardinalDirection.West })
{
if (move.EndPosition == move.StartPosition.AtDirection(direction).AtDirection(direction))
{
return move.StartPosition.AtDirection(direction);
}
}
throw new ArgumentException("No captured peg for this move.");
}