public Game_Universe()
{
this.White_Player = new Player(Player.Colors.WHITE); // player 1
this.Black_Player = new Player(Player.Colors.BLACK); // player 2
this.board = new Board(); // pull out a board
White_Player.initialize_Pieces(ref board); //white puts pieces on board
Black_Player.initialize_Pieces(ref board); //black puts pieces on board
turnNumber = 1; // first turn
}
public override bool moveRules(byte pDestination, Board board)
{
byte furthest_left, furthest_right, furthest_up, furthest_down;
isPieceOnFile(this.Location, out furthest_up, out furthest_down, board);
isPieceOnRow(this.Location, out furthest_left, out furthest_right, board);
byte mod_value = (byte)(this.Location % 8);
if (pDestination % 8 == mod_value)
{
if (pDestination >= furthest_down && pDestination <= furthest_up)
return true;
else
return false;
}
else if (pDestination >= furthest_right && pDestination <= furthest_left)
{
return true;
}
return false;
}
public override bool captureRules(byte pDestination, Board board)
{
throw new NotImplementedException();
}
public bool isPieceOnRow(byte pLocation, out byte pFurthest_Left, out byte pFurthest_Right, Board board)
{
// look left and right on the row to see if a piece will cause another piece to not be able to move as far
sbyte furthest_left = -1; // furthest value left of location that a piece can move to
sbyte furthest_right = -1; // furthest value right of location that a piece can move to
sbyte range_to_check_right = (sbyte)((int)pLocation % 8); //will be a value 0-7 giving us a range to check left and right of location
sbyte range_to_check_left = (sbyte)(7 - range_to_check_right);
if (range_to_check_right == 0) // we are on the right edge of the board
{
furthest_right = (sbyte)pLocation;
for (sbyte i = (sbyte)(pLocation + 1); i <= (sbyte)(pLocation + range_to_check_left); i++) // check as far as the left side of the board
{
if (board.Squares[i].PieceOn)
{
furthest_left = (sbyte)(i - pLocation - 1); // number of spots piece can move left of the location tile
break;
}
}
if (furthest_left == -1) // no piece to our location's left
{
pFurthest_Right = (byte)pLocation; // we are on the right edge of the board, can't move right.
pFurthest_Left = (byte)(pLocation + 7); // we can move as far left as we want, but not over the edge of the board
return false;
}
else
{
pFurthest_Right = pLocation;
pFurthest_Left = (byte)furthest_left;
return true;
}
}
else if (range_to_check_left == 0)
{
furthest_left = (sbyte)pLocation;
for (sbyte i = (sbyte)(pLocation - 1); i >= pLocation - range_to_check_right; i--) // check as far as the right side of the board
{
if (board.Squares[i].PieceOn)
{
furthest_right = (sbyte)(pLocation - (pLocation - i - 1)); // number of spots piece can move right of the location tile
break;
}
}
if (furthest_right == -1)
{
pFurthest_Left = pLocation;
pFurthest_Right = (byte)(pLocation - 7);
return false;
}
else
{
pFurthest_Left = pLocation;
pFurthest_Right = (byte)furthest_right;
return true;
}
}
else // piece is not on left or right edge of board
{
for (sbyte i = (sbyte)(pLocation - 1); i >= pLocation - range_to_check_right; i--) // check as far as the right side of the board
{
if (board.Squares[i].PieceOn) // piece on tile 'i'
{
furthest_right = (sbyte)(pLocation - (pLocation - i - 1)); // number of spots piece can move right of the location tile
break;
}
}
for (sbyte i = (sbyte)(pLocation + 1); i <= (sbyte)(pLocation + range_to_check_left); i++) // check as far as the left side of the board
{
if (board.Squares[i].PieceOn)
{
furthest_left = (sbyte)(i - pLocation - 1); // number of spots piece can move left of the location tile
break;
}
}
if (furthest_left == -1 && furthest_right == -1) // there are no pieces left or right of the location
{
pFurthest_Right = (byte)(pLocation - range_to_check_right);
pFurthest_Left = (byte)(pLocation + range_to_check_left);
return false;
}
else if (furthest_left == -1) // no piece to the left
{
pFurthest_Left = (byte)(pLocation + range_to_check_left);
pFurthest_Right = (byte)furthest_right;
return true;
}
else if (furthest_right == -1) // no piece to the right
{
pFurthest_Right = (byte)(pLocation - range_to_check_right);
pFurthest_Left = (byte)furthest_left;
return true;
}
else
{
pFurthest_Left = (byte)furthest_left;
pFurthest_Right = (byte)furthest_right;
return true;
}
}
}
public abstract bool moveRules(byte pDestination, Board board);
public bool isPieceOnNegativeDiagonal(byte pLocation, out byte pFurthest_Left, out byte pFurthest_Right, Board board)
{
sbyte furthest_left = -1; // furthest value left of location that a piece can move to
sbyte furthest_right = -1; // furthest value right of location that a piece can move to
if (pLocation % 8 == 0)
{
}
else if (pLocation % 8 == 7)
{
}
else
{
}
}
public bool isPieceOnPositiveDiagonal(byte pLocation, out byte pFurthest_Left, out byte pFurthest_Right, Board board)
{
sbyte furthest_left = -1; // furthest value left of location that a piece can move to
sbyte furthest_right = -1; // furthest value right of location that a piece can move to
sbyte range_to_check_left; // how far we want to check left
sbyte range_to_check_right; // how far we want to check right
sbyte mod_value = (sbyte)(pLocation % 8);
if (pLocation % 8 == 0 || pLocation < 8)
{
for (sbyte i = (sbyte)(pLocation + 7); (i % 8) <= 7; i += 7)
{
if (board.Squares[i].PieceOn)
{
range_to_check_left = (sbyte)(i - 7);
break;
}
}
}
else if (pLocation % 8 == 7 || pLocation > 55) // if we are on the left-most file
{
for (sbyte i = (sbyte)(pLocation - 7); (i % 8) <= 0; i -= 7)
{
if (board.Squares[i].PieceOn)
{
range_to_check_right = (sbyte)(i + 7);
break;
}
}
}
else // we are in the middle of the board somewhere
{
for (sbyte i = (sbyte)(pLocation + 7); (i % 8) <= 7; i += 7)
{
if (board.Squares[i].PieceOn)
{
range_to_check_left = (sbyte)(i - 7);
break;
}
}
for (sbyte i = (sbyte)(pLocation - 7); (i % 8) <= 0; i -= 7)
{
if (board.Squares[i].PieceOn)
{
range_to_check_right = (sbyte)(i + 7);
break;
}
}
}
}
public bool isPieceOnFile(byte pLocation, out byte pFurthest_Up, out byte pFurthest_Down, Board board)
{
// look up and down on the file to see if a piece will cause another piece to not be able to move as far
sbyte mod_value = (sbyte)(pLocation % 8);
sbyte furthest_up = -1;
sbyte furthest_down = -1;
sbyte top_of_file = -1;
sbyte bottom_of_file = mod_value;
for (sbyte i = (sbyte)pLocation; i < 64; i += 8) // assign value so we know the top of the file
top_of_file = i;
if (pLocation == bottom_of_file)
{
furthest_down = (sbyte)pLocation;
for (sbyte i = (sbyte)(pLocation + 8); i <= top_of_file; i += 8) //increase i by 8 to traverse only squares on the same file as location
{
if (board.Squares[i].PieceOn)
{
furthest_up = (sbyte)(i - 8);
break;
}
}
if (furthest_up == -1) // set out params if no piece is found
{
pFurthest_Up = (byte)top_of_file;
pFurthest_Down = pLocation;
return false;
}
else // set out params if piece is found
{
pFurthest_Up = (byte)furthest_up;
pFurthest_Down = pLocation;
return true;
}
}
else if (pLocation == top_of_file)
{
furthest_up = (sbyte)pLocation;
for (sbyte i = (sbyte)(pLocation - 8); i >= bottom_of_file; i -= 8) //decrease i by 8 to traverse only squares on the same file as location
{
if (board.Squares[i].PieceOn)
{
furthest_down = (sbyte)(i + 8);
break;
}
}
if (furthest_down == -1) // set out params if no piece is found
{
pFurthest_Down = (byte)bottom_of_file;
pFurthest_Up = pLocation;
return false;
}
else // set out params if piece is found
{
pFurthest_Down = (byte)furthest_down;
pFurthest_Up = pLocation;
return true;
}
}
else
{
for (sbyte i = (sbyte)(pLocation - 8); i >= bottom_of_file; i -= 8) // check below location for piece
{
if (board.Squares[i].PieceOn)
{
furthest_down = (sbyte)(i + 8);
break;
}
}
for (sbyte i = (sbyte)(pLocation + 8); i <= top_of_file; i += 8) // check above location for piece
{
if (board.Squares[i].PieceOn)
{
furthest_up = (sbyte)(i - 8);
break;
}
}
if (furthest_down == -1 && furthest_up == -1) // no other piece on file
{
pFurthest_Down = (byte)bottom_of_file;
pFurthest_Up = (byte)top_of_file;
return false;
}
else if (furthest_down == -1) // only a piece above
{
pFurthest_Down = (byte)bottom_of_file;
pFurthest_Up = (byte)furthest_up;
return true;
}
else if (furthest_up == -1) // only a piece below
{
pFurthest_Down = (byte)furthest_down;
pFurthest_Up = (byte)top_of_file;
return true;
}
else // piece above and below
{
pFurthest_Down = (byte)furthest_down;
pFurthest_Up = (byte)furthest_up;
return true;
}
}
}
public abstract bool captureRules(byte pDestination, Board board);
public override bool moveRules(byte pDestination, Board board)
{
byte destination = (byte)pDestination;
byte currentPosition = (byte)this.Location;
if (this.Color == Colors.WHITE) // white pawn movements
{
if (!HasMoved)
{
if (destination == currentPosition + 16 || destination == currentPosition + 8) // first move can go 1 or 2 spots forward
return true;
else
return false;
}
else
{
if (destination == currentPosition + 8) // not first move, can go 1 spot
return true;
else
return false;
}
}
else // black pawn movements
{
if (!HasMoved)
{
if (destination == currentPosition - 16 || destination == currentPosition - 8) // first move can go 1 or 2 spots forward
return true;
else
return false;
}
else
{
if (destination == currentPosition - 8) // not first move, can go 1 spot
return true;
else
return false;
}
}
}
public void initialize_Pieces(ref Board pBoard)
{
for (byte i = 0; i < 16; i++)
{
pBoard.PlacePiece(player_Pieces[i].InitialPosition);
player_Pieces[i].Location = player_Pieces[i].InitialPosition; // piece's current location is their initial location
}
}
private void button2_Click(object sender, EventArgs e)
{
Board board = new Board();
}