playout.h

   1 #ifndef ZZGO_PLAYOUT_H
   2 #define ZZGO_PLAYOUT_H
   3
   4 struct board;
   5 struct move;
   6 enum stone;
   7
   8
   9 struct playout_policy;
  10 typedef coord_t (*playoutp_choose)(struct playout_policy *playout_policy, struct board *b, enum stone my_color);
  11 /* 0.0 - 1.0; can return NAN is policy has no opinion */
  12 typedef float (*playoutp_assess)(struct playout_policy *playout_policy, struct board *b, struct move *m);
  13
  14 struct playout_policy {
  15         int debug_level;
  16         /* We call choose when we ask policy about next move.
  17          * We call assess when we ask policy about how good given move is. */
  18         playoutp_choose choose;
  19         playoutp_assess assess;
  20         void *data;
  21 };
  22
  23
  24 /* Record of the random playout - for each intersection:
  25  * S_NONE: This move was never played
  26  * S_BLACK: This move was played by black first
  27  * S_WHITE: This move was played by white first
  28  */
  29 struct playout_amafmap {
  30         enum stone color;
  31         enum stone *map; // [b->size2]
  32 };
  33
  34
  35 /* 1: starting_color wins, 0: starting_color loses
  36  * -1: superko inside the game tree */
  37 int play_random_game(struct board *b, enum stone starting_color, int gamelen, struct playout_amafmap *amafmap, struct playout_policy *policy);
  38
  39 #endif