private void Chessboard_MouseDown(object sender, MouseEventArgs e)
{
int x = Pixel2Index(e.X);
int y = Pixel2Index(e.Y);
if (gs.PlaceChess(x, y, gs.NextPlayer()))
{
DrawChess(x, y, gs.NextPlayer());
Redraw();
if (gs.WhoIsWin() != ChessPiece.EMPTY)
{
Win(gs.WhoIsWin());
return;
}
if (enableNeuroSuccessful)
{
GameAI.PlaceChessAI(gs, NeuroEvaluateFunction);
}
else
{
GameAI.PlaceChessAI(gs, GameAI.EvaluateFunctionWithoutNervus);
}
DrawChess(gs.X, gs.Y, gs.NextPlayer());
Redraw();
if (gs.WhoIsWin() != ChessPiece.EMPTY)
{
Win(gs.WhoIsWin());
}
}
//MessageBox.Show(Pixel2Index(x).ToString() + ' ' + Pixel2Index(y).ToString());
}
/// <summary>
/// 迭代器，用于找到当前状态的所有子节点
/// </summary>
/// <returns></returns>
public IEnumerator <GameState> GetNextSiblingStates()
{
var newGameState = new GameState(this);
int tmp_x = -1, tmp_y = -1;
ChessPiece chess = newGameState.turn;
for (int i = 0; i < Settings.BOARD_SIZE; i++)
{
for (int j = 0; j < Settings.BOARD_SIZE; j++)
{
if (chessboard[i, j] == ChessPiece.EMPTY)
{
if (tmp_x != -1)
{
newGameState.chessboard[tmp_x, tmp_y] = ChessPiece.EMPTY;
}
newGameState.PlaceChess(i, j, chess);
tmp_x = i;
tmp_y = j;
yield return(newGameState);
}
}
}
}
/// <summary>
/// 迭代器，用于找到当前状态的所有子节点
/// </summary>
/// <returns></returns>
public IEnumerator<GameState> GetNextSiblingStates()
{
var newGameState = new GameState(this);
int tmp_x = -1, tmp_y = -1;
ChessPiece chess = newGameState.turn;
for (int i = 0; i < Settings.BOARD_SIZE; i++)
{
for (int j = 0; j < Settings.BOARD_SIZE; j++)
{
if (chessboard[i, j] == ChessPiece.EMPTY)
{
if (tmp_x != -1)
newGameState.chessboard[tmp_x, tmp_y] = ChessPiece.EMPTY;
newGameState.PlaceChess(i, j, chess);
tmp_x = i;
tmp_y = j;
yield return newGameState;
}
}
}
}
/// <summary>
/// 使用AI放置棋子
/// </summary>
/// <param name="gs">游戏状态</param>
/// <param name="ef">评价函数</param>
public static void PlaceChessAI(GameState gs, EvaluateFunction ef)
{
IEnumerator <GameState> ie_gs = gs.GetNextSiblingStates();
int x = 0, y = 0;
double value = Settings.LOSE_POINT;
double temp_value = 0;
while (ie_gs.MoveNext())
{
if (IsNessarySearch(ie_gs.Current, ie_gs.Current.X, ie_gs.Current.Y))
{
temp_value = MinMax(ie_gs.Current, Settings.SEARCH_DEPTH - 1, Settings.LOSE_POINT, Settings.WIN_POINT, gs.turn, ef);
if (temp_value > value)
{
x = ie_gs.Current.X;
y = ie_gs.Current.Y;
value = temp_value;
}
}
}
//Debug.WriteLine("{0} {1} {2}", x, y, temp_value);
gs.PlaceChess(x, y, gs.NextPlayer());
}
/// <summary>
/// 使用AI放置棋子
/// </summary>
/// <param name="gs">游戏状态</param>
/// <param name="ef">评价函数</param>
public static void PlaceChessAI(GameState gs, EvaluateFunction ef)
{
IEnumerator<GameState> ie_gs = gs.GetNextSiblingStates();
int x = 0, y = 0;
double value = Settings.LOSE_POINT;
double temp_value = 0;
while (ie_gs.MoveNext())
{
if (IsNessarySearch(ie_gs.Current, ie_gs.Current.X, ie_gs.Current.Y))
{
temp_value = MinMax(ie_gs.Current, Settings.SEARCH_DEPTH - 1, Settings.LOSE_POINT, Settings.WIN_POINT, gs.turn, ef);
if (temp_value > value)
{
x = ie_gs.Current.X;
y = ie_gs.Current.Y;
value = temp_value;
}
}
}
//Debug.WriteLine("{0} {1} {2}", x, y, temp_value);
gs.PlaceChess(x, y, gs.NextPlayer());
}