public bool canIeat(ChessBoard board, Coords start, Coords end)
{
if (board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(true);
}
return(false);
}
public bool DiagonalMoves(ChessBoard board, Coords start, Coords end)
{
if (Math.Abs(start.getX() - end.getX()) == Math.Abs(start.getY() - end.getY()))
{
if (start.getY() > end.getY() && start.getX() > end.getX())
{//y--x--
for (int tempStartY = start.getY() - 1, tempStartX = start.getX() - 1; tempStartY > end.getY() && tempStartX > end.getX(); tempStartY--, tempStartX--)
{
if (board.GetSoldierByPosition(new Coords(tempStartY, tempStartX)).getColor() != " ")
{
return(false); // If there is one (not empty) movement isn't allowed
}
}
}
else if (start.getY() > end.getY() && start.getX() < end.getX())
{//y--x++
for (int tempStartY = start.getY() - 1, tempStartX = start.getX() + 1; tempStartY > end.getY() && tempStartX < end.getX(); tempStartY--, tempStartX++)
{
if (board.GetSoldierByPosition(new Coords(tempStartY, tempStartX)).getColor() != " ")
{
return(false); // If there is one (not empty) movement isn't allowed
}
}
}
else if (start.getY() < end.getY() && start.getX() < end.getX())
{//y++x++
for (int tempStartY = start.getY() + 1, tempStartX = start.getX() + 1; tempStartY > end.getY() && tempStartX < end.getX(); tempStartY++, tempStartX++)
{
if (board.GetSoldierByPosition(new Coords(tempStartY, tempStartX)).getColor() != " ")
{
return(false); // If there is one (not empty) movement isn't allowed
}
}
}
else if (start.getY() < end.getY() && start.getX() > end.getX())
{//y++x--
for (int tempStartY = start.getY() + 1, tempStartX = start.getX() - 1; tempStartY > end.getY() && tempStartX < end.getX(); tempStartY++, tempStartX--)
{
if (board.GetSoldierByPosition(new Coords(tempStartY, tempStartX)).getColor() != " ")
{
return(false); // If there is one (not empty) movement isn't allowed
}
}
}
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
return(false);
}
public bool PawnMove(ChessBoard board, Coords start, Coords end)
{
int direction;
if (board.WhiteTurn())
{
direction = -1;
}
else
{
direction = 1;
}
if (!this.getMoved() &&//first move 2 steps
start.getX() == end.getX() &&
start.getY() + (2 * direction) == end.getY() &&
board.GetSoldierByPosition(new Coords(start.getY() + (2 * direction), end.getX())).getType() == " ")
{
firstMoveTwoSteps = true;
return(true);
}
if (start.getX() == end.getX() &&//move 1 step
start.getY() + direction == end.getY() &&
board.GetSoldierByPosition(new Coords(start.getY() + direction, end.getX())).getType() == " ")
{
return(true);
}
if ((start.getX() + 1 == end.getX() || start.getX() - 1 == end.getX()) &&//eating
start.getY() + direction == end.getY() &&
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor() &&
board.GetSoldierByPosition(end).getColor() != " ")
{
return(canIeat(board, start, end));
}
if (board.validEnPassant(start, end))//en passant
{
return(true);
}
return(false);
}
public bool StraightLines(ChessBoard board, Coords start, Coords end)
{
if (start.getX() == end.getX())
{
if (start.getY() < end.getY())
{
for (int i = start.getY() + 1; i < end.getY(); i++)
{
if (board.GetSoldierByPosition(new Coords(i, start.getX())).getColor() != " ")
{
return(false); // If there is one (not empty) movement isn't allowed
}
}
}
else
{
for (int i = start.getY() - 1; i > end.getY(); i--)
{
if (board.GetSoldierByPosition(new Coords(i, start.getX())).getColor() != " ")
{
return(false);
}
}
}
return(canIeat(board, start, end) || board.GetSoldierByPosition(end).getColor() == " ");
}
else if (start.getY() == end.getY())
{
if (start.getX() < end.getX())
{
for (int i = start.getX() + 1; i < end.getX(); i++)
{
if (board.GetSoldierByPosition(new Coords(start.getY(), i)).getColor() != " ")
{
return(false);
}
}
}
else
{
for (int i = start.getX() - 1; i > end.getX(); i--)
{
if (board.GetSoldierByPosition(new Coords(start.getY(), i)).getColor() != " ")
{
return(false);
}
}
}
return(canIeat(board, start, end) || board.GetSoldierByPosition(end).getColor() == " ");
}
return(false);
}
public void run()
{
bool valid = false;
ChessBoard c = new ChessBoard();
c.initSoldiers();
// !c.checkMate(c.FindKing())
c.PrintBoard();
while (!valid)
{
Console.WriteLine("Please enter start axis Y, start axis X, end axis Y, end axis X");
Console.WriteLine("{0}", (c.WhiteTurn() ? "White its your turn:" : "Black its your turn:"));
string input = Console.ReadLine().Trim(' ');
if (input.Length == 4)
{
Coords start = new Coords(c.ConvertY(input[0]), c.ConvertX(input[1]));
Coords end = new Coords(c.ConvertY(input[2]), c.ConvertX(input[3]));
bool validTurn = false;
if ((c.WhiteTurn() && c.GetSoldierByPosition(start).getColor() == "W"))
{
validTurn = true;
}
if (!(c.WhiteTurn()) && c.GetSoldierByPosition(start).getColor() == "B")
{
validTurn = true;
}
if (c.ValidInput(start, end) && validTurn && c.PossibleToCancelCheck(start, end))
{
if (c.validCastling(start, end) && c.GetSoldierByPosition(start).validMove(c, start, end))
{
c.doCastlingMove(start, end);
c.nextTurn();
}
else if (c.GetSoldierByPosition(start).validMove(c, start, end))
{
if (c.GetSoldierByPosition(start).getType() == "P" ||
(c.GetSoldierByPosition(start).getColor() != c.GetSoldierByPosition(end).getColor() && c.GetSoldierByPosition(end).getColor() != " ") ||
c.inCheck(c.FindKing()))
{
c.setDrawCounter(0);
}
if (c.validPawnPromotion(start, end))
{
c.doPromotion(start, end);
c.nextTurn();
}
else if (c.validEnPassant(start, end))
{
c.doEnPassant(start, end);
c.nextTurn();
}
else
{
c.basicMove(start, end);
c.nextTurn();
}
}
}
}
if (c.isDraw(c.FindKing()))
{
Console.WriteLine("Draw");
valid = true;
break;
}
if (c.checkMate(c.FindKing()))
{
Console.WriteLine((!(c.WhiteTurn()) ? "White won" : "Black won"));
valid = true;
}
}
}
public bool rMoves(ChessBoard board, Coords start, Coords end)
{
if (start.getX() + 2 == end.getX() && start.getY() + 1 == end.getY() &&//x+2//y+1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() + 2 == end.getX() && start.getY() - 1 == end.getY() &&//x+2//y-1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() - 2 == end.getX() && start.getY() + 1 == end.getY() &&//x-2//y+1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() - 2 == end.getX() && start.getY() - 1 == end.getY() &&//x-2//y-1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() - 1 == end.getX() && start.getY() - 2 == end.getY() &&//x-1//y-2
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() + 1 == end.getX() && start.getY() - 2 == end.getY() &&//x+1//y-2
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() - 1 == end.getX() && start.getY() + 2 == end.getY() &&//x-1//y+2
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() + 1 == end.getX() && start.getY() + 2 == end.getY() &&//x+1//y+2
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
return(false);
}
public bool KingMoves(ChessBoard board, Coords start, Coords end)
{
if (start.getX() + 1 == end.getX() && start.getY() + 1 == end.getY() &&//x+1//y+1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() + 1 == end.getX() && start.getY() - 1 == end.getY() &&//x+1//y-1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() - 1 == end.getX() && start.getY() + 1 == end.getY() &&//x-1//y+1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() - 1 == end.getX() && start.getY() - 1 == end.getY() &&//x-1//y-1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}//
if (start.getX() == end.getX() && start.getY() - 1 == end.getY() &&//x//y-1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() == end.getX() && start.getY() + 1 == end.getY() &&//x//y+1
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() - 1 == end.getX() && start.getY() == end.getY() &&//x-1//y
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (start.getX() + 1 == end.getX() && start.getY() == end.getY() &&//x+1//y
board.GetSoldierByPosition(start).getColor() != board.GetSoldierByPosition(end).getColor())
{
return(board.GetSoldierByPosition(end).getColor() == " " || canIeat(board, start, end));
}
if (board.validCastling(start, end))
{
return(true);
}
return(false);
}