/// <summary>
/// play game for monte carlo method
/// </summary>
/// <param name="Str">play strategy</param>
/// <param name="board">current board</param>
/// <param name="nmove">monte carlo steps</param>
/// <param name="move">pre-pointed next step</param>
/// <returns>score by monte carlo</returns>
public static double MontePlay(Strategy Str, Board board, int nmove, int move = -1)
{
bool first = true;
while (true)
{
UInt64 newboard;
if (first && (move != -1))
{
if (BoardControl.ExecuteMove(board, move) == board)
{
return(0);
}
first = false;
}
else
{
for (move = 0; move < 4; move++)
{
if (BoardControl.ExecuteMove(board, move) != board)
{
break;
}
}
if (move == 4)
{
break;
}
move = Str(board);
if (move < 0)
{
break;
}
}
newboard = BoardControl.ExecuteMove(board, move);
if (newboard == board)
{
continue;
}
UInt64 tile = BoardControl.RandomTile();
board = BoardControl.InsertTileRand(newboard, tile);
nmove--;
if (nmove <= 0)
{
return(PreScore.DirectScore(board));
}
}
return(0);
}
/// <summary>
/// play game by pointed strategy
/// </summary>
/// <param name="Str">play strategy</param>
public static void Play(Strategy Str)
{
Board board = BoardControl.InitBoard();
int moveno = 0;
int scorepenalty = 0;
while (true)
{
int move;
Board newboard;
for (move = 0; move < 4; move++)
{
if (BoardControl.ExecuteMove(board, move) != board)
{
break;
}
}
if (move == 4)
{
break;
}
BoardControl.Print(board);
System.Console.WriteLine("Move:" + (++moveno).ToString() + ", score:" + (BoardControl.Score(board) - scorepenalty).ToString() + '\n');
move = Str(board);
if (move < 0)
{
break;
}
newboard = BoardControl.ExecuteMove(board, move);
if (newboard == board)
{
System.Console.WriteLine("Illegal move!\n");
moveno--;
continue;
}
Board tile = BoardControl.RandomTile();
if (tile == 2)
{
scorepenalty += 4;
}
board = BoardControl.InsertTileRand(newboard, tile);
}
BoardControl.Print(board);
System.Console.WriteLine("\nGame over.\nScore:" + (BoardControl.Score(board) - scorepenalty).ToString() + ".\n");
}