// During the basic opponent turn update, we need to update the joint probability distribution
// using just the information about which card he has just played
protected void FilterHiddenHand(MoveData TurnData)
{
Debug.Assert(TurnData.Player.SittingOrder != MySittingOrder);
Debug.Assert(!PlayerIsKnockedOut[TurnData.Player.SittingOrder]);
Debug.Assert(TurnData.Card.Value >= CardController.VALUE_GUARD && TurnData.Card.Value <= CardController.VALUE_PRINCESS);
// Update the hand distribution matrices
if (CurrentOpponentCount == 3)
{
// Prepare a temporary array
tempArray3D.Clear();
// Loop through all possible world states and update the tempoprary array accordingly
for (int h0 = 0; h0 < CARD_VECTOR_LENGTH; h0++)
{
for (int h1 = 0; h1 < CARD_VECTOR_LENGTH; h1++)
{
for (int h2 = 0; h2 < CARD_VECTOR_LENGTH; h2++)
{
UpdatePartialHandDistribution(TurnData, h0, h1, h2, ref tempArray3D);
}
}
}
// Renormalize the temporary array and write it back to the three-player distribution
tempArray3D.Renormalize();
ThreeOpponentsHandsDistribution.CopyFrom(tempArray3D);
}
else if (CurrentOpponentCount == 2)
{
// Prepare a temporary array
tempArray2D.Clear();
// Loop through all possible world states and update the tempoprary array accordingly
for (int h0 = 0; h0 < CARD_VECTOR_LENGTH; h0++)
{
for (int h1 = 0; h1 < CARD_VECTOR_LENGTH; h1++)
{
UpdatePartialHandDistribution(TurnData, h0, h1, ref tempArray2D);
}
}
// Renormalize the temporary array and write it back to the two-player distribution
tempArray2D.Renormalize();
TwoOpponentsHandsDistribution.CopyFrom(tempArray2D);
}
else if (CurrentOpponentCount == 1)
{
// Prepare a temporary array
tempArray1D.Clear();
// Loop through all possible world states and update the tempoprary array accordingly
for (int h0 = 0; h0 < CARD_VECTOR_LENGTH; h0++)
{
UpdatePartialHandDistribution(TurnData.Card.Value - 1, h0, ref tempArray1D);
}
// Renormalize the temporary array and write it back to the one-payer distribution
tempArray1D.Renormalize();
SingleOpponentHandDistribution.CopyFrom(tempArray1D);
}
// Finally, recalculate utility arrays
RecalculateHandAndDeckdistributions();
}
// Resets the memory of the knowledge state at the start of each round
public void Reset()
{
CurrentOpponentCount = PlayerCount - 1;
SetMyHand(0, 0);
Array.Clear(PlayerIsKnockedOut, 0, PlayerCount);
Array.Copy(GameController.CARD_COUNT, CountUnaccountedForCards, GameController.CARD_COUNT.Length);
DeckDistribution.CopyFrom(BaseDeckDistribution);
ThreeOpponentsHandsDistribution.CopyFrom(BaseThreeOpponentsHandsDistribution);
ResetOpponentsBeliefsAboutMyHand();
// Sort the hidden hands' sitting order again
int hiddenHandIndex = 0;
for (int p = 0; p < PlayerCount; p++)
{
if (p != MySittingOrder)
{
HiddenHands[hiddenHandIndex++] = p;
HandDistribution[p].CopyFrom(BaseDeckDistribution);
}
}
}
