/*
* static private void showPolicy(Net.Net n)
* {
* Console.Write(" ");
* var pol = new NNBasicStrategy(n, 1.0);
* for (int d = 2; d <= 11; d++)
* {
* Console.Write(d + " ");
* }
* Console.WriteLine();
* //Try each possible input and get the output.
* for (int p = 21; p >= 4; p--)
* {
* if(p >= 10)
* Console.Write(p + " ");
* else
* Console.Write(p + " ");
* for (int d = 2; d <= 11; d++)
* {
* Hand pH = new Hand();
* Hand dH = new Hand();
* pH.addCards(p);
* dH.addCards(d);
* //var a = pol.choosePlayerAction(pH, dH, deck);
* Console.Write(a + " ");
* }
* Console.WriteLine();
* }
*
* //do for soft totals
* Console.WriteLine();
* Console.WriteLine("------ SOFTS ------");
*
* for (int p = 2; p <= 9; p++)
* {
* Console.Write(p + " ");
* for (int d = 2; d <= 11; d++)
* {
* Hand pH = new Hand();
* Hand dH = new Hand();
* pH.addCards(11);
* pH.addCards(p);
* dH.addCards(d);
* // var a = pol.choosePlayerAction(pH, dH);
* Console.Write(a + " ");
* }
* Console.WriteLine();
* }
*
* }
*/
/*
* private static double simpleBasicStrategy(int numOfHands)
* {
* var ret = new List<double>();
* int totalHandsPlayed;
* double winLoss = 0.0; //-1 for loss, +1 for win. +1.5 for blackjack. 0 for draw
* var policy = new BasicStrategy();
* //do each hand
* Deck deck = new Deck(6);
* deck.shuffleCards();
* for (totalHandsPlayed = 0; totalHandsPlayed < numOfHands; totalHandsPlayed++)
* {
* if (deck.isDeckFinished())
* {
* deck = new Deck(6);
* deck.shuffleCards();
* }
*
* //decide bet
* var trueCount = deck.getTrueCount();
* var bet = 1.0;
* if (trueCount > 2)
* bet = 10.0;
*
* Hand playerHand = new Hand();
* Hand dealerHand = new Hand();
* //deal initial cards
* playerHand.addCards(deck.getCard());
* dealerHand.addCards(deck.getCard());
* playerHand.addCards(deck.getCard());
* dealerHand.addCards(deck.getCard());
* playHandBasic(ref deck, playerHand, ref dealerHand, ref policy, ref winLoss, bet);
* }
* var x = winLoss / (numOfHands);
* return x;
* }
*/
private static double ccBasicStrategy(Net.Net bettingNet, int numOfHands, double eps, ref Deck deck, bool isTraining = false)
{
int totalHandsPlayed;
double winLoss = 0.0; //-1 for loss, +1 for win. +1.5 for blackjack. 0 for draw
var policy = new BasicStrategy();
var bettingPolicy = new NNBettingStrategy(bettingNet, eps);
//do each hand
for (totalHandsPlayed = 0; totalHandsPlayed < numOfHands; totalHandsPlayed++)
{
if (deck.isDeckFinished())
{
deck = new Deck(6);
deck.shuffleCards();
}
//figure out bet
var bet = 1.0f;
var actionTaken = bettingPolicy.chooseBet(deck);
if (actionTaken == 1)
{
bet = 5.0f;
}
if (actionTaken == 2)
{
bet = 10.0f;
}
Hand playerHand = new Hand();
Hand dealerHand = new Hand();
//deal initial cards
playerHand.addCards(deck.getCard());
dealerHand.addCards(deck.getCard());
playerHand.addCards(deck.getCard());
dealerHand.addCards(deck.getCard());
var winBefore = winLoss;
var winAfter = winLoss;
var diff = winAfter - winBefore;
var reward = playHandBasic(ref deck, playerHand, ref dealerHand, ref policy, ref winLoss);
reward = reward * bet;
if (isTraining)
{
bettingPolicy.runBackwards(reward, actionTaken);
}
diff = (bet * diff) - diff;
winLoss += diff;
}
var x = winLoss / (numOfHands);
return(x);
}
private static float playHandBasic(ref Deck deck, Hand playerHand, ref Hand dealerHand, ref BasicStrategy policy, ref double winLoss)
{
var reward = 0.0f;
var mult = 1.0f;
//check for blackjack.
if (playerHand.getValue() == 21 && dealerHand.getValue() != 21)
{
winLoss += 1.5;
return(1.5f);
}
else if (dealerHand.getValue() == 21) //dealer got blackjack
{
winLoss -= 1.0;
return(-1.0f);
}
else
{
//player decisions
var actionTaken = policy.choosePlayerAction(playerHand, dealerHand);
if (actionTaken == 1)//hit
{
//player decisions
var action = policy.choosePlayerAction(playerHand, dealerHand);
while (action == 1)
{
playerHand.addCards(deck.getCard());
action = policy.choosePlayerAction(playerHand, dealerHand);
}
//see if we busted
if (playerHand.getValue() > 21)
{
winLoss -= 1.0;
}
else
{
actionTaken = 0;
}
}
else if (actionTaken == 2) //double
{
playerHand.addCards(deck.getCard());
if (playerHand.getValue() > 21)
{
winLoss -= 2.0;
reward = -1.0f;
mult = 2.0f;
}
else
{
mult = 2.0f;
actionTaken = 0;
}
}
else if (actionTaken == 3) //split
{
Hand pH1 = new Hand();
Hand pH2 = new Hand();
var val = playerHand.getValue() / 2;
//split card and get an extra.
pH1.addCards(val);
pH2.addCards(val);
pH1.addCards(deck.getCard());
pH2.addCards(deck.getCard());
//win loss for the hands
reward = playHandBasic(ref deck, pH1, ref dealerHand, ref policy, ref winLoss);
reward += playHandBasic(ref deck, pH2, ref dealerHand, ref policy, ref winLoss);
winLoss += reward;
}
if (actionTaken == 0) //stand
{
//play dealer
var dealerVal = playDealer(ref deck, ref dealerHand);
if (dealerVal > 21) //dealer busts
{
winLoss += 1.0 * mult;
reward = 1.0f * mult;
}
else if (dealerVal < playerHand.getValue()) //we beat dealer
{
winLoss += 1.0f * mult;
reward = 1.0f * mult;
}
else if (dealerVal == playerHand.getValue()) //draw
{
reward = 0.0f;
}
else //we lost to dealer
{
winLoss -= 1.0 * mult;
reward = -1.0f * mult;
}
}
}
return(reward);
}
