/// <summary>
/// オセロの初期状態として盤を生成
/// </summary>
/// <returns></returns>
public static ReversiBoard InitBoard()
{
var res = new ReversiBoard()
{
//オセロの初期状態
black = 0x0000000810000000,
white = 0x0000001008000000
};
return(res);
}
/// <summary>
/// 盤の情報をもとに思考し、次の手を返す
/// </summary>
/// <param name="board"></param>
/// <param name="player"></param>
/// <returns></returns>
public Reversi.Core.ReversiMove Think(ReversiBoard board, StoneType player)
{
this.board = board;
this.player = player;
legalMoves = board.SearchLegalMoves(player); //合法手
if (legalMoves.Count == 0)
{
throw new InvalidOperationException("合法手がありません");
}
else
{
var best = 0;
var bestMove = default(ReversiMove);
foreach (var item in board.SearchLegalMoves(player))
{
var child = board.AddStone(item.Row, item.Col, player);
switch (player)
{
case StoneType.None:
break;
case StoneType.Sente:
if (best < child.NumOfBlack())
{
best = child.NumOfBlack();
bestMove = item;
}
break;
case StoneType.Gote:
if (best < child.NumOfWhite())
{
best = child.NumOfWhite();
bestMove = item;
}
break;
default:
break;
}
}
return(bestMove);
}
}
/// <summary>
/// 文字列から記録を生成
/// </summary>
/// <param name="record"></param>
/// <returns></returns>
public static MatchRecord FromRecordString(string record)
{
MatchRecord res = new MatchRecord();
var array = record.Split('\n');
foreach (var bits in array)
{
if (bits == "")
{
break;
}
var bitArray = bits.Split('|');
var bl = Convert.ToUInt64(bitArray[0], 2);
var wh = Convert.ToUInt64(bitArray[1], 2);
var board = new ReversiBoard(bl, wh);
res.Boards.Add(board);
}
return(res);
}
/// <summary>
/// 石を打つ
/// </summary>
/// <param name="row"></param>
/// <param name="col"></param>
/// <param name="player"></param>
/// <returns></returns>
public ReversiBoard AddStone(int row, int col, StoneType player)
{
this.player = player;
ulong pl = 0;
ulong opp = 0;
switch (this.player)
{
case StoneType.None:
break;
case StoneType.Sente:
pl = black;
opp = white;
break;
case StoneType.Gote:
pl = white;
opp = black;
break;
default:
break;
}
ulong mov = (ulong)1 << (8 * row + col);
var rev = Reverse(pl, opp, mov, Right)
| Reverse(pl, opp, mov, Left)
| Reverse(pl, opp, mov, Up)
| Reverse(pl, opp, mov, Down)
| Reverse(pl, opp, mov, UpRight)
| Reverse(pl, opp, mov, UpLeft)
| Reverse(pl, opp, mov, DownRight)
| Reverse(pl, opp, mov, DownLeft);
if (rev != 0)
{
pl ^= mov | rev;
opp ^= rev;
ReversiBoard board = new ReversiBoard();
switch (player)
{
case StoneType.Sente:
board.black = pl;
board.white = opp;
break;
case StoneType.Gote:
board.black = opp;
board.white = pl;
break;
default:
break;
}
return(board);
}
else
{
throw new ArgumentException("非合法手です");
}
}
