Fleshed out Scheme primitives

* Moved board specific functions from othello.h to new othello_board.h

* Removed unused function pointer for player moves

* Added prototypes in headers for SCM functions, including
  scm_get_current_player,

* Made get_winner accept a board and current player. This is useful for
  predictions to see if some move would make the other player a winner.

* get_winner also writes the players scores to provided pointers.

1 files changed, 8 insertions, 0 deletions

diff --git a/include/othello_move.h b/include/othello_move.h
index 281cb9b..2e2974b 100644
--- a/include/othello_move.h
+++ b/include/othello_move.h
@@ -30,6 +30,9 @@ struct move get_scm_move(char *strategy_path);
 bool is_valid_move(enum player_color **board,
                    const enum player_color current_player,
                    const struct move move);
+SCM scm_is_valid_move(SCM board, SCM current_player, SCM move);
+
+SCM scm_valid_moves(SCM scm_board, SCM player);
 
 // True if current_player has any valid moves.
 // Otherwise false.
@@ -39,3 +42,8 @@ bool has_valid_moves(enum player_color **board,
 /* Returns true if the move was valid */
 bool apply_move(enum player_color **board, enum player_color current_player,
                 struct move move);
+// Does not actually modify the current board state. Returns a new board with
+// the move applied. If the move was not valid, an empty list (nil) is returned.
+SCM scm_apply_move(SCM move, SCM board, SCM current_player);
+
+struct move scm_move_to_c_move(SCM scm_move);