// Only selects a random piece and position when there is no plays better than the one originally selected
public static winningMove RandomPlay(winningMove winChoice)
{
int rand;
var rnd = new Random();
List <int> playablePieces;
List <int> playablePositions;
if (winChoice.heuristicValue == 0)
{
playablePositions = AIFunctions.makePlayablePositionList(winChoice.winningNode.gameBoard);
if (playablePositions.Count() == 0)
{
return(winChoice);
}
else if (playablePositions.Count() - 1 == 0)
{
rand = 0;
}
else
{
rand = rnd.Next(0, playablePositions.Count() - 1);
}
winChoice.winningNode.moveOnBoard = playablePositions[rand];
playablePieces = AIFunctions.makePlayablePiecesOnly(winChoice.winningNode.pieces);
if (playablePieces.Count() == 0)
{
return(winChoice);
}
else if (playablePieces.Count() - 1 == 0)
{
rand = 0;
}
else
{
rand = rnd.Next(0, playablePieces.Count() - 1);
}
winChoice.winningNode.pieceToPlay = playablePieces[rand];
}
return(winChoice);
}
