Method Init

library/src/moves/moves.cpp:107–138

* @brief Initialize move generation state for a new deal. * * Sets up tracking arrays and initializes removed ranks based on the starting * position. Handles partial tricks by incorporating already-played cards. * * The removedRanks array tracks which cards are no longer available. It starts * with all cards (0xffff), then XORs with available cards to mark them as * available, then XORs bac

 * available, then XORs back any cards already played in this trick.
 */
auto Moves::Init(const int tricks, const int relStartHand,
                 const int initialRanks[], const int initialSuits[],
                 const unsigned short rank_in_suit[DDS_HANDS][DDS_SUITS],
                 const int our_trump, const int our_lead_hand) -> void {
  currTrick = tricks;
  trump = our_trump;

  if (relStartHand == 0)
    track[tricks].lead_hand = our_lead_hand;

  for (int m = 0; m < 13; m++) {
    for (int h = 0; h < DDS_HANDS; h++) {
      moveList[m][h].current = 0;
      moveList[m][h].last = 0;
    }
  }

  // 0x1ffff would be enough, but this is for compatibility.
  for (int s = 0; s < DDS_SUITS; s++)
    track[tricks].removed_ranks[s] = 0xffff;

  for (int h = 0; h < DDS_HANDS; h++)
    for (int s = 0; s < DDS_SUITS; s++)
      track[tricks].removed_ranks[s] ^= rank_in_suit[h][s];

  for (int n = 0; n < relStartHand; n++) {
    int s = initialSuits[n];
    int r = initialRanks[n];

    track[tricks].removed_ranks[s] ^= bit_map_rank[r];
  }
}

auto Moves::Reinit(const int tricks, const int ourLeadHand) -> void {
  track[tricks].lead_hand = ourLeadHand;