/// <summary>
/// We fill in values bottom down. So sometimes when you set a new value you should check parents too.
/// Also if we are a choice and just added a worse value, don't recalculate parent.
/// </summary>
private void SetValue(NodeValue v)
{
var oldValue = Value;
Value = v;
switch (GetChoiceType())
{
case NodeType.Choice:
if (v > oldValue || object.ReferenceEquals(oldValue, null))
{
Parent?.CalcValue();
}
break;
case NodeType.Random:
//TODO this is optimizable.
Parent?.CalcValue();
break;
case NodeType.Leaf:
Parent.CalcValue();
break;
}
}
public static void TestCultistMC()
{
var turnNumber = 0;
var initialDeck = new List <string>()
{
"Strike", "Strike", "Strike", "Strike", "Strike", "Defend", "Defend", "Defend", "Defend", "Bash"
};
//initialHand.AddRange(new List<string>() {"Pummel", "Exhume"});
var hand = gsl();
var drawPile = initialDeck;
var exhaustPile = gsl();
var discardPile = gsl();
var enemyHp = 51;
var playerHp = 1;
var firstDraw = new List <string>()
{
"Strike", "Strike", "Defend", "Defend", "Bash"
};
var statuses = new List <StatusInstance>()
{
};
if (false)
{
turnNumber = 1;
discardPile = firstDraw;
drawPile = gsl("Strike", "Strike", "Defend", "Defend", "Strike");
firstDraw = gsl("Strike", "Strike", "Defend", "Defend", "Strike");
statuses = new List <StatusInstance>()
{
GS(new Feather(), 3), GS(new Vulnerable(), 1)
};
}
var enemy = new Cultist(hp: enemyHp);
enemy.StatusInstances = statuses;
var player = new Player(hp: playerHp);
var deck = new Deck(drawPile, hand, discardPile, exhaustPile);
var mc = new MonteCarlo(deck, enemy, player, turnNumber, firstDraw);
var bestValue = new NodeValue(-100, 0, null);
for (var ii = 0; ii < 100000; ii++)
{
var leaf = mc.MC(mc.Root.Randoms.First());
var value = leaf.GetValue();
if (value > bestValue)
{
bestValue = value;
SaveLeaf(leaf, ii);
ShowInitialValues(mc.Root.Randoms.First());
}
}
System.IO.File.AppendAllText(Output, $"==========Final First move best lines");
ShowInitialValues(mc.Root.Randoms.First());
SaveAllLeaves(mc.Root);
}
private void CalcValue()
{
ValueCalculated = true;
switch (GetChoiceType())
{
case NodeType.TooLong:
var tooLongVal = Fight._Player.HP - Fight._Enemies[0].HP;
SetValue(new NodeValue(tooLongVal, 0, null));
break;
case NodeType.Leaf:
var val = 0;
var tt = this;
switch (Fight.Status)
{
case FightStatus.Ongoing:
var hh = AALeafHistory();
throw new Exception("Leaves can't have ongoing fights.");
//this happens when we get toolong
//A
//BC
// B is toolong, C ended.
// we backgrack to A but can't calc b. B is a leaf.
//TODO this is obviously wrong.
//no point in calculating them as we go.
//val = Fight._Player.HP - Fight._Enemies[0].HP;
return;
case FightStatus.Won:
val = Fight._Player.HP;
break;
case FightStatus.Lost:
val = -1 * Fight._Enemies[0].HP;
break;
}
var cards = 0;
if (Fight.FightAction.FightActionType == FightActionEnum.PlayCard)
{
cards++;
}
SetValue(new NodeValue(val, cards, null));
break;
case NodeType.Choice:
if (FightAction == null)
{
throw new Exception("This should not happen");
}
NodeValue value = null;
FightNode bc = null;
foreach (var c in Choices)
{
var cval = c.GetValue();
if (value == null || cval > value)
{
value = cval;
bc = c;
}
}
int cards2 = 0;
//Todo prefer playing cards to playing potions!
if (FightAction.FightActionType == FightActionEnum.PlayCard || FightAction.FightActionType == FightActionEnum.Potion)
{
cards2++;
}
var myVal = new NodeValue(value.Value, value.Cards + cards2, bc);
SetValue(myVal);
break;
case NodeType.Random:
var rsum = 0.0d;
var rc = 0;
foreach (var r in Randoms)
{
rsum += r.GetValue().Value *r.Weight;
rc += r.Weight;
}
SetValue(new NodeValue(rsum * 1.0 / rc, 0, null));
//TODO okay to not assign bestchild? it doesn't make sense over random.
break;
}
}
