/// <summary>
/// Funkce minimaxu
/// </summary>
/// <param name="gb">instance tridy hraci desky</param>
/// <param name="depth">hloubka minimaxu</param>
/// <returns></returns>
private double minimax(Gameboard gb, int depth)
{
// pokud je na tahu bily hrac
if (gb.PlayingWhite)
{
// a vitez je nastaven na bileho hrace vrat MAX
if (gb.Winner == status.whitePlayer)
{
return(-GlobalVariables.MAX);
}
// a vitez je nastaven na cerneho hrace vrat -MAX
if (gb.Winner == status.blackPlayer)
{
return(GlobalVariables.MAX);
}
// a je remiza, vrat 0
if (gb.Winner == status.draw)
{
return(0);
}
}
// pokud je na tahu cerny hrac
else
{
// a je vitez nastaven na cerneho hrace, vrat MAX
if (gb.Winner == status.blackPlayer)
{
return(-GlobalVariables.MAX);
}
// a je vitez nastaven na bileho hrace, vrat -MAX
if (gb.Winner == status.whitePlayer)
{
return(GlobalVariables.MAX);
}
// a je remiza, vrat 0
if (gb.Winner == status.draw)
{
return(0);
}
}
if (depth == 0)
{
return(evalFunction(gb));
}
else
{
List <Fairway> moves = generateMoves(gb);
double rank = -GlobalVariables.MAX;
for (int i = 0; i < moves.Count; i += 2)
{
// potomek <- zahraj(pozice, tah)
Gameboard potomek = gb.gameboardCopy();
rules.makeMove(moves[i], moves[i + 1], potomek, true);
rank = Math.Max(rank, -minimax(potomek, depth - 1));
}
return(rank);
}
}
private void fw_2ndClick(object sender, EventArgs e)
{
var form = Form.ActiveForm as Friska_dama;
BackgroundWorker bw = form.bw;
var fwClicked = (Fairway)sender;
List <Fairway> playersFigures = rules.choosableFigures(this);
List <string> posMoves = possibleMoves(From);
if (fwClicked == From)
{
foreach (var fw in Board)
{
fw.Click -= fw_2ndClick;
fw.Click += fw_1stClick;
}
if (ShowMoveHelp)
{
colorUp();
}
From = null;
form.statusBarLabel.Text = "Vyberte figurku, kterou chcete táhnout";
}
else if (fwClicked != From && playersFigures.Contains(fwClicked))
{
From = fwClicked;
fairwayColorUp(this, From);
}
else if (posMoves.Contains(fwClicked.Name))
{
addHistory(From, fwClicked);
rules.makeMove(From, fwClicked, this, false);
Winner = rules.checkWinner(this);
from = null;
foreach (var fw in Board)
{
fw.Click -= fw_2ndClick;
fw.Click += fw_1stClick;
}
if (ShowMoveHelp)
{
colorUp();
}
form.Activate();
form.FriskaDama_Activated(sender, e);
}
}
/// <summary>
/// Funkce provadejici nacteni hry a zkontrolovani, zda se jedna o korektni ulozeni
/// </summary>
/// <param name="filePath">cesta k souboru</param>
/// <param name="gb">Hraci deska, na niz maji byt zmeny provedeny</param>
/// <returns>Hraci desku s odehratou hrou</returns>
public Gameboard loadGame(string filePath, Gameboard gb)
{
string from = "";
string to = "";
Fairway fwFrom;
Fairway fwTo;
var rules = new Rules();
gb.Board = gb.newBoard();
using (XmlReader reader = XmlReader.Create(filePath))
{
while (reader.Read())
{
if (reader.IsStartElement())
{
switch (reader.Name)
{
// nacteme si obtiznost bileho hrace a nastavime
case "WHITE":
if (reader.Read())
{
int whitePlayer = Convert.ToInt32(reader.Value.Trim());
gb.WhitePlayer = whitePlayer;
}
break;
// nacteme si obtiznost cerneho hrace a nastavime
case "BLACK":
if (reader.Read())
{
int blackPlayer = Convert.ToInt32(reader.Value.Trim());
gb.BlackPlayer = blackPlayer;
}
break;
// nacteme si zacinajiciho hrace a nastavime
case "STARTS":
if (reader.Read())
{
bool startsWhite = Convert.ToBoolean(reader.Value.Trim());
gb.StartsWhite = startsWhite;
}
break;
//
case "SHOWHELP":
if (reader.Read())
{
bool showHelp = Convert.ToBoolean(reader.Value.Trim());
gb.ShowMoveHelp = showHelp;
}
break;
case "FROM":
if (reader.Read())
{
from = reader.Value.Trim();
}
break;
case "TO":
if (reader.Read())
{
to = reader.Value.Trim();
}
fwFrom = gb.getFigure(from);
fwTo = gb.getFigure(to);
rules.generateMoves(gb);
rules.makeMove(fwFrom, fwTo, gb, false);
gb.addHistory(fwFrom, fwTo);
break;
default:
break;
}
}
}
}
return(gb);
}
/// <summary>
/// Funkce provadejici nacteni hry a zkontrolovani, zda se jedna o korektni ulozeni
/// </summary>
/// <param name="filePath">cesta k souboru</param>
/// <param name="gb">Hraci deska, na niz maji byt zmeny provedeny</param>
/// <returns>Hraci desku s odehratou hrou</returns>
public Gameboard loadGame(string filePath, Gameboard gb)
{
string from = "";
string to = "";
Fairway fwFrom;
Fairway fwTo;
Rules rules = new Rules();
gb.Board = gb.newBoard();
using (XmlReader reader = XmlReader.Create(filePath))
{
while (reader.Read())
{
if (reader.IsStartElement())
{
switch (reader.Name)
{
// nacteme si obtiznost bileho hrace a nastavime
case "WHITE":
if (reader.Read())
{
int whitePlayer = Convert.ToInt32(reader.Value.Trim());
gb.WhitePlayer = whitePlayer;
}
break;
// nacteme si obtiznost cerneho hrace a nastavime
case "BLACK":
if (reader.Read())
{
int blackPlayer = Convert.ToInt32(reader.Value.Trim());
gb.BlackPlayer = blackPlayer;
}
break;
// nacteme si zacinajiciho hrace a nastavime
case "STARTS":
if (reader.Read())
{
bool startsWhite = Convert.ToBoolean(reader.Value.Trim());
gb.StartsWhite = startsWhite;
}
break;
//
case "SHOWHELP":
if (reader.Read())
{
bool showHelp = Convert.ToBoolean(reader.Value.Trim());
gb.ShowMoveHelp = showHelp;
}
break;
case "FROM":
if (reader.Read())
from = (string)reader.Value.Trim();
break;
case "TO":
if (reader.Read())
to = (string)reader.Value.Trim();
fwFrom = gb.getFigure(from);
fwTo = gb.getFigure(to);
rules.generateMoves(gb);
rules.makeMove(fwFrom, fwTo, gb, false);
gb.addHistory(fwFrom, fwTo);
break;
default:
break;
}
}
}
}
return gb;
}
