private Point getFullRandom(bool[,] fields)
{
//this function returns a random viable point in fields
ChompBoard thisBoard = (ChompBoard)board;
List <Point> viable = new List <Point>();
//get viable
if (!(fields[0, 1] || fields[1, 0]))
{
return(new Point(0, 0));
}
for (int x = 0; x < fields.GetLength(0); x++)
{
for (int y = 0; y < fields.GetLength(1); y++)
{
if (fields[x, y] && !(x == 0 && y == 0))
{
viable.Add(new Point(x, y));
}
}
}
//select and return random viable point
return(viable[(new Random()).Next(viable.Count)]);
}
private Point computerTurn()
{
ChompBoard thisBoard = (ChompBoard)board;
Point destination = getWinningPoint(thisBoard.squares); //look for several simple win conditions
if (destination == new Point(-1, -1))
{
//simple AI
/*
* destination = getBiasedRandom(thisBoard.squares); //look for a point that doesn't result in a simple win condition for the other player
* if (destination == new Point(-1, -1))
* { Console.WriteLine("getFullRandom"); return getFullRandom(thisBoard.squares); } //select random
* else Console.WriteLine("getBiasedRandom");
*/
//advanced with list (can display total number of remaining choices)
/*
* List<Point> nextLs;
* for (int degree = DIFF; degree > 0; degree--)
* {
* try
* { nextLs = getBiasedRandomRecursive(thisBoard.squares, degree); Console.WriteLine("Degree " + degree + ": " + nextLs.Count + " choices."); }
* catch (Exception e)
* { Console.WriteLine(degree + " failed: " + e.Message); continue; }
*
* if (nextLs.Count > 0)
* { destination = nextLs[(new Random()).Next(nextLs.Count)]; }
* else destination = new Point(-1, -1);
*
* if (destination != new Point(-1, -1)) return destination;
* }
* Console.WriteLine("getFullRandom"); return getFullRandom(thisBoard.squares);
*/
//advanced with point
for (int degree = DIFF; degree > 0; degree--)
{
try
{ destination = getBiasedRandomRecursivePoint(thisBoard.squares, degree); }
catch (Exception e)
{ Console.WriteLine(degree + " failed: " + e.Message); continue; }
if (destination != new Point(-1, -1))
{
return(destination);
}
}
Console.WriteLine("getFullRandom"); return(getFullRandom(thisBoard.squares));
}
else
{
Console.WriteLine("getWinningPoint");
}
return(destination);
}