private Position[] AddCollisionHorse(ChessPiece CurrentPiece)
{
Position[] allTurns = CurrentPiece.PossibleTurns().SelectMany(x => x).ToArray();
List <Position> Builder = new List <Position>();
foreach (Position position in allTurns)
{
ChessPiece chessPiece = this[position];
if (chessPiece != null)
{
//Enemy
if (chessPiece.Color != CurrentPiece.Color)
{
Builder.Add(position);
}
}
else
{
//Empty space
Builder.Add(position);
}
}
return(Builder.ToArray());
}
//Collisions for these pieces are same
private Position[] AddCollisionRookBishopQueenKing(ChessPiece CurrentPiece)
{
Position[][] allTurns = CurrentPiece.PossibleTurns();
List <Position> Builder = new List <Position>();
foreach (Position[] Direction in allTurns)
{
foreach (Position singlePosition in Direction)
{
ChessPiece chessPiece = this[singlePosition];
if (chessPiece != null)
{
//Check if piece belongs to player or not
if (chessPiece.Color == CurrentPiece.Color)
{
break;
}
else
{
//Enemy
Builder.Add(singlePosition);
break;
}
}
else
{
//Empty space
Builder.Add(singlePosition);
}
}
}
return(Builder.ToArray());
}
private Position[] AddCollisionPawn(ChessPiece CurrentPiece)
{
Position[] allTurns = CurrentPiece.PossibleTurns().SelectMany(x => x).ToArray();
List <Position> Builder = new List <Position>();
if (allTurns.Length == 0)
{
// Change to any piece except pawn and king
}
else
{
//Check forward, left forward, right forward
foreach (Position forwardDirection in allTurns)
{
if (this[forwardDirection] == null)
{
Builder.Add(forwardDirection);
}
else
{
break;
}
}
Position forward = allTurns[0];
//If there're pieces right or left corners, take them.
Position ForwardLeft = forward.ToLeft(CurrentPiece.Color);
if (ForwardLeft.IsOnBoard())
{
ChessPiece PieceForwardLeft = this[ForwardLeft];
if (PieceForwardLeft != null && PieceForwardLeft.Color != CurrentPiece.Color)
{
Builder.Add(ForwardLeft);
}
}
Position ForwardRight = forward.ToRight(CurrentPiece.Color);
if (ForwardRight.IsOnBoard())
{
ChessPiece PieceForwardRight = this[ForwardRight];
if (PieceForwardRight != null && PieceForwardRight.Color != CurrentPiece.Color)
{
Builder.Add(ForwardRight);
}
}
}
return(Builder.ToArray());
}