// On a knock-out, reduce the dimension of the joint distribution array and renormalize it
public void KnockOutFilter(int SittingOrder, int DiscardedValue)
{
Debug.Assert(SittingOrder != MySittingOrder);
Debug.Assert(DiscardedValue >= CardController.VALUE_GUARD && DiscardedValue <= CardController.VALUE_PRINCESS);
int CardIndex = DiscardedValue - 1;
int HiddenHandIndex = GetHiddenHandIndex(SittingOrder);
// Account for the discared card
AccountForCard(DiscardedValue);
// Merge down the current matrix to one dimension lower, taking the slice that corresponds to the knocked-out player's actual hand
if (CurrentOpponentCount == 3)
{
TwoOpponentsHandsDistribution = ThreeOpponentsHandsDistribution.GetSlice(HiddenHandIndex, CardIndex);
TwoOpponentsHandsDistribution.Renormalize();
// Also, we move out the knocked-out player's sitting order to the last place of the HiddenHands array
AIUtil.ShiftToLast(ref HiddenHands, HiddenHandIndex);
}
else if (CurrentOpponentCount == 2)
{
SingleOpponentHandDistribution = TwoOpponentsHandsDistribution.GetSlice(HiddenHandIndex, CardIndex);
SingleOpponentHandDistribution.Renormalize();
AIUtil.ShiftToLast(ref HiddenHands, HiddenHandIndex);
}
// Update player situation
CurrentOpponentCount -= 1;
PlayerIsKnockedOut[SittingOrder] = true;
}