-void MovePicker::score_qcaptures() {
-
- // Use MVV/LVA ordering
- for (int i = 0; i < numOfMoves; i++)
- {
- Move m = moves[i].move;
- if (move_promotion(m))
- moves[i].score = QueenValueMidgame;
- else
- moves[i].score = int(pos.midgame_value_of_piece_on(move_to(m)))
- -int(pos.type_of_piece_on(move_from(m)));
- }
-}
-
-
-/// find_best_index() loops across the moves and returns index of\r
-/// the highest scored one. There is also a second version that\r
-/// lowers the priority of moves that attack the same square,\r
-/// so that if the best move that attack a square fails the next\r
-/// move picked attacks a different square if any, not the same one.
-
-int MovePicker::find_best_index() {
-
- int bestScore = -10000000, bestIndex = -1;
-
- for (int i = movesPicked; i < numOfMoves; i++)
- if (moves[i].score > bestScore)
- {
- bestIndex = i;
- bestScore = moves[i].score;
- }
- return bestIndex;
-}
-
-int MovePicker::find_best_index(Bitboard* squares, int values[]) {\r
-\r
- int hs;\r
- Move m;\r
- Square to;\r
- int bestScore = -10000000, bestIndex = -1;\r
-\r
- for (int i = movesPicked; i < numOfMoves; i++)\r
- {\r
- m = moves[i].move;\r
- to = move_to(m);\r
- \r
- if (!bit_is_set(*squares, to))\r
- {\r
- // Init at first use\r
- set_bit(squares, to);\r
- values[to] = 0;\r
- }\r
-\r
- hs = moves[i].score - values[to];\r
- if (hs > bestScore)\r
- {\r
- bestIndex = i;\r
- bestScore = hs;\r
- }\r
- }\r
-\r
- if (bestIndex != -1)\r
- {\r
- // Raise value of the picked square, so next attack\r
- // to the same square will get low priority.\r
- to = move_to(moves[bestIndex].move);\r
- values[to] += 0xB00;\r
- }\r
- return bestIndex;\r
-}
-
-
-/// MovePicker::pick_move_from_list() picks the move with the biggest score
-/// from a list of generated moves (moves[] or badCaptures[], depending on
-/// the current move generation phase). It takes care not to return the
-/// transposition table move if that has already been serched previously.
-
-Move MovePicker::pick_move_from_list() {
+/// MovePicker::get_next_move() is the most important method of the MovePicker
+/// class. It returns a new legal move every time it is called, until there
+/// are no more moves left.
+/// It picks the move with the biggest score from a list of generated moves taking
+/// care not to return the tt move if that has already been serched previously.