public virtual bool IsValidMove(BoardCoordinate newCoordinate)
{
bool isValidMove = false;
foreach (ChessPieceMoveDefinition moveDefinition in this.AllowedMoves)
{
int maxSteps = moveDefinition.MaxMove;
int fileSteps = (int)newCoordinate.File - (int)this.CurrentLocation.File;
int rankSteps = (int)newCoordinate.Rank - (int)this.CurrentLocation.Rank;
ChessPieceMoveDirections directionMoved = ChessPieceMoveDirections.None;
// check flags for direction moved
directionMoved |= (fileSteps > 0 ? ChessPieceMoveDirections.PositiveFile : (fileSteps < 0 ? ChessPieceMoveDirections.NegativeFile : ChessPieceMoveDirections.None));
directionMoved |= (rankSteps > 0 ? ChessPieceMoveDirections.PositiveRank : (rankSteps < 0 ? ChessPieceMoveDirections.NegativeRank : ChessPieceMoveDirections.None));
if (!moveDefinition.MoveDirections.HasFlag(directionMoved))
{
continue;
}
if (moveDefinition.FileMoveSteps == 0 && moveDefinition.RankMoveSteps != 0)
{
if ((fileSteps == 0 && moveDefinition.FileMoveSteps == 0) &&
((Math.Abs(rankSteps) % moveDefinition.RankMoveSteps == 0) && (Math.Abs(rankSteps) / moveDefinition.RankMoveSteps) <= maxSteps))
{
isValidMove = true;
break;
}
}
else if (moveDefinition.FileMoveSteps != 0 && moveDefinition.RankMoveSteps == 0)
{
if ((rankSteps == 0 && moveDefinition.RankMoveSteps == 0) &&
((Math.Abs(fileSteps) % moveDefinition.FileMoveSteps == 0) && (Math.Abs(fileSteps) / moveDefinition.FileMoveSteps) <= maxSteps))
{
isValidMove = true;
break;
}
}
else if (moveDefinition.FileMoveSteps != 0 && moveDefinition.RankMoveSteps != 0)
{
if (((Math.Abs(rankSteps) % moveDefinition.RankMoveSteps == 0) && (Math.Abs(rankSteps) / moveDefinition.RankMoveSteps) <= maxSteps) &&
((Math.Abs(fileSteps) % moveDefinition.FileMoveSteps == 0) && (Math.Abs(fileSteps) / moveDefinition.FileMoveSteps) <= maxSteps) &&
(Math.Abs(fileSteps) / moveDefinition.FileMoveSteps == Math.Abs(rankSteps) / moveDefinition.RankMoveSteps))
{
isValidMove = true;
break;
}
}
else if (moveDefinition.FileMoveSteps == 0 && moveDefinition.RankMoveSteps == 0)
{
}
}
return(isValidMove);
}
public ChessPieceMoveDefinition(int fileMoveSteps, int rankMoveSteps, int maxMove, ChessPieceMoveDirections moveDirections)
{
this.FileMoveSteps = fileMoveSteps;
this.RankMoveSteps = rankMoveSteps;
this.MaxMove = maxMove;
this.MoveDirections = moveDirections;
}
