// Pawn Movement validation
public override bool Move(Board board, Coordinate start, Coordinate end)
{
int direction;
if (this.PieceColor() == "white")
{
direction = 1;
}
else
{
direction = -1;
}
if (start.GetY() == end.GetY() &&
start.GetX() + direction == end.GetX() &&
board.GetPieceName(start.GetX() + direction, start.GetY()) == "Empty")
{
return(true);
}
if ((start.GetY() + 1 == end.GetY() || start.GetY() - 1 == end.GetY()) &&
start.GetX() + direction == end.GetX() &&
board.GetPieceName(end) != "Empty" && board.GetCoordColor(end) != board.GetCoordColor(start))
{
return(true);
}
return(false);
}
// Rook's Movements Validated
public override bool Move(Board board, Coordinate start, Coordinate end)
{
bool res = false;
if (start.GetX() == end.GetX() || start.GetY() == end.GetY())
{
if (start.GetX() == end.GetX())
{
int startIndex = Math.Min(start.GetY(), end.GetY()) + 1;
int endIndex = Math.Max(start.GetY(), end.GetY());
int x = start.GetX();
for (int i = startIndex; i < endIndex; i++)
{
if (board.GetPieceName(x, i) != "Empty")
{
res = false;
break;
}
}
res = true;
}
else if (start.GetY() == end.GetY())
{
int startIndex = Math.Min(start.GetX(), end.GetX()) + 1;
int endIndex = Math.Max(start.GetX(), end.GetX());
int y = start.GetY();
for (int i = startIndex; i < endIndex; i++)
{
if (board.GetPieceName(i, y) != "Empty")
{
res = false;
break;
}
}
res = true;
}
}
return(res);
}
// Bishop Move
public override bool Move(Board board, Coordinate start, Coordinate end)
{
if (Math.Abs(start.GetX() - end.GetX()) == Math.Abs(end.GetY() - start.GetY()))
{
int startX = start.GetX();
int startY = start.GetY();
int endX = end.GetX();
int endY = end.GetY();
int addI = startX - endX;
int addJ = startY - endY;
while (startX != endX)
{
if (startX > endX && startY > endY)
{
startX--;
startY--;
}
else if (startX < endX && startY > endY)
{
startX++;
startY--;
}
else if (startX > endX && startY < endY)
{
startX--;
startY++;
}
else if (startX < endX && startY < endY)
{
startX++;
startY++;
}
if (Math.Abs(startX - endX) >= 1 && board.GetPieceName(startX, startY) != "Empty")
{
return(false);
}
}
return(true);
}
return(false);
}
// Queen's Movements validation
public override bool Move(Board board, Coordinate start, Coordinate end)
{
if (Math.Abs(start.GetX() - end.GetX()) == Math.Abs(end.GetY() - start.GetY()))
{
int startX = start.GetX();
int startY = start.GetY();
int endX = end.GetX();
int endY = end.GetY();
while (startX != endX)
{
if (startX > endX && startY > endY)
{
startX--;
startY--;
}
else if (startX < endX && startY > endY)
{
startX++;
startY--;
}
else if (startX > endX && startY < endY)
{
startX--;
startY++;
}
else if (startX < endX && startY < endY)
{
startX++;
startY++;
}
if (Math.Abs(startX - endX) >= 1 && board.GetPieceName(startX, startY) != "Empty")
{
return(false);
}
}
return(true);
}
else
{
if (start.GetX() == end.GetX() || start.GetY() == end.GetY())
{
if (start.GetX() == end.GetX())
{
int startIndex = Math.Min(start.GetY(), end.GetY()) + 1;
int endIndex = Math.Max(start.GetY(), end.GetY());
int x = start.GetX();
for (int i = startIndex; i < endIndex; i++)
{
if (board.GetPieceName(x, i) != "Empty")
{
return(false);
}
}
}
else if (start.GetY() == end.GetY())
{
int startIndex = Math.Min(start.GetX(), end.GetX()) + 1;
int endIndex = Math.Max(start.GetX(), end.GetX());
int y = start.GetY();
for (int i = startIndex; i < endIndex; i++)
{
if (board.GetPieceName(i, y) != "Empty")
{
return(false);
}
}
}
return(true);
}
else
{
return(false);
}
}
}
