private static LegalFlag GetLegalFlag(ChessBoard board, ChessPiece piece, PiecePoint point)
{
LegalFlag flag = LegalFlag.None;
if (piece.ActionArea.IsPointInArea(point))
{
var wayPieceInfo = board.GetPieceInfo(point);
if (wayPieceInfo.IsBlank())
{
flag = LegalFlag.Blank;
}
else if (piece.CanEat(wayPieceInfo))
{
flag = LegalFlag.Eatting;
}
else if (piece.CanFuse(wayPieceInfo))
{
flag = LegalFlag.Fusion;
}
}
return(flag);
}
private static bool IsLegalPointNotBlank(LegalFlag flag)
{
return(flag == LegalFlag.Eatting || flag == LegalFlag.Fusion);
}
private static bool IsLegalPoint(LegalFlag flag)
{
return(flag == LegalFlag.Blank);
}
private static bool IsLegal(LegalFlag flag)
{
return(flag != LegalFlag.None);
}