static Task <STuple <double, double> > FitnessFunction(INeuralNetwork n1, INeuralNetwork n2)
{
#region sequence
/*
* for (int n = 0; n < 10; n++)
* {
* Random random = new Random();
* var options = Enumerable.Range(0, Amount).ToList();
* var test = new double[Amount];
* for (int i = 0; i < Amount; i++)
* {
* int r = random.Next(options.Count);
* var next = (double)options[r];
* next = Extensions.Map(next, 0, (double)Amount, -1, 1);
* test[i] = next;
* options.RemoveAt(r);
* }
* if (test.Length != Amount)
* {
* Console.WriteLine("wtf!");
* }
* var result = network.Activate(test);
* for (int i = 0; i < Amount; i++)
* {
* double loss = Math.Abs(result[i] - test[i]);
* fitness -= loss;
* if (debug && n == 0)
* Console.WriteLine($"{test[i]} | {result[i]}");
* }
* }
*/
#endregion
#region XOR
/*
* var tests = new Dictionary<double[], double>
* {
* {
* new double[] { 0, 0},
* 0
* },
* {
* new double[] { 1, 0},
* 1
* },
* {
* new double[] { 0, 1},
* 1
* },
* {
* new double[] { 1, 1},
* 0
* },
* };
*
* foreach(var kv in tests)
* {
* var result = network.Activate(kv.Key);
* double difference = result[0] - kv.Value;
* difference = -Math.Abs(difference);
* fitness += difference;
* if (debug)
* {
* Console.WriteLine($"{kv.Key[0]} {kv.Key[1]} | {result[0]}");
* }
* }
*/
#endregion XOR
#region linear
/*
* for (int i = 0; i < 10; i++)
* {
* double a, b, x;
* lock (random)
* {
* a = Math.Round(random.NextDouble() / 2, 2);
* b = Math.Round(random.NextDouble() / 2, 2);
* x = Math.Round(random.NextDouble(), 2);
* }
* var res = network.Activate(new double[] { a, b, x });
* var correct = (a * x + b);
*
* fitness -= Math.Abs(res[0] - correct);
*
* if (debug)
* {
* Console.WriteLine($"{a} * {x} + {b} = {correct} | {res[0]}");
* }
* }
*/
#endregion
#region TicTacToe
Game game = new Game();
Game.GameState gameState = Game.GameState.Undetermined;
bool n1turn = true;
while (gameState == Game.GameState.Undetermined)
{
var board = BoardToArray(game.GetBoard());
var input = new double[10];
input[0] = n1turn ? 1 : -1;
for (int i = 0; i < board.Length; i++)
{
input[i + 1] = board[i];
}
INeuralNetwork network = n1turn ? n1 : n2;
var output = network.Activate(input);
var newGameState = Game.GameState.Error;
List <int> chosenTiles = new List <int>();
while (newGameState == Game.GameState.Error)
{
int tile = -1;
double highest = double.MinValue;
for (int i = 0; i < output.Length; i++)
{
if (output[i] > highest && !chosenTiles.Contains(i))
{
highest = output[i];
tile = i;
}
}
chosenTiles.Add(tile);
tile++;
newGameState = game.NewMove((Game.TileNumber)tile);
}
n1turn = !n1turn;
gameState = newGameState;
}
(double, double)fitness = (0, 0);
if (gameState == Game.GameState.Win)
{
if (n1turn)
{
fitness = (-1, 1);
}
else
{
fitness = (1, -1);
}
}
#endregion
var tcs = new TaskCompletionSource <STuple <double, double> >();
tcs.SetResult(fitness);
return(tcs.Task);
}
static void HumanTest(INeuralNetwork enemy)
{
Console.Clear();
Game game = new Game();
Game.GameState gameState = Game.GameState.Undetermined;
bool playerturn = true;
while (gameState == Game.GameState.Undetermined)
{
if (!playerturn)
{
var board = BoardToArray(game.GetBoard());
var input = new double[10];
input[0] = -1;
for (int i = 0; i < board.Length; i++)
{
input[i + 1] = board[i];
}
var output = enemy.Activate(input);
var newGameState = Game.GameState.Error;
List <int> chosenTiles = new List <int>();
while (newGameState == Game.GameState.Error)
{
int tile = -1;
double highest = double.MinValue;
for (int i = 0; i < output.Length; i++)
{
if (output[i] > highest && !chosenTiles.Contains(i))
{
highest = output[i];
tile = i;
}
}
chosenTiles.Add(tile);
tile++;
newGameState = game.NewMove((Game.TileNumber)tile);
}
gameState = newGameState;
}
else
{
var newGameState = Game.GameState.Error;
while (newGameState == Game.GameState.Error)
{
int tile = -1;
int.TryParse(Console.ReadLine(), out tile);
newGameState = game.NewMove((Game.TileNumber)tile);
}
gameState = newGameState;
}
playerturn = !playerturn;
Console.WriteLine();
VisualizeBoard(game.GetBoard());
Console.WriteLine();
}
if (gameState == Game.GameState.Win)
{
string winner = playerturn ? "Bot" : "Player";
Console.WriteLine();
Console.WriteLine(winner + " wins!");
}
else if (gameState == Game.GameState.Tie)
{
Console.WriteLine();
Console.WriteLine("Tie!");
}
Console.ReadLine();
}