Highlight the previous move.

This is particularly helpful when using the game to play on a real board

2 files changed, 7 insertions, 4 deletions

diff --git a/include/othello_board.h b/include/othello_board.h
index 99ad839..a8299fc 100644
--- a/include/othello_board.h
+++ b/include/othello_board.h
@@ -32,7 +32,7 @@ enum player_color **copy_board(enum player_color **board);
 void free_board(enum player_color **board);
 
 // Prints the current state of the board, including coordinates in the margins.
-void print_board(enum player_color **board);
+void print_board(enum player_color **board, struct move *highlighted_moves, size_t highlighted_moves_length);
 void scm_print_board(SCM board);
 
 // Returns the current board.
diff --git a/include/othello_move.h b/include/othello_move.h
index a1f030d..6b58bbe 100644
--- a/include/othello_move.h
+++ b/include/othello_move.h
@@ -22,7 +22,9 @@
 
 #include "othello.h"
 
-struct move prompt_get_move(enum player_color current_player);
+struct move prompt_get_move(enum player_color current_player,
+                            struct move *flipped_last_turn,
+                            size_t flipped_last_turn_length);
 struct move get_scm_move(char *strategy_path);
 
 // True if move is valid for current_player.
@@ -41,8 +43,9 @@ bool has_valid_moves(enum player_color **board,
 
 // Returns non-zero number if the move was valid.
 // Returns the number of flipped tiles.
-int apply_move(enum player_color **board, enum player_color current_player,
-               struct move move);
+size_t apply_move(enum player_color **board, enum player_color current_player,
+                  struct move move, struct move **flipped_spots,
+                  size_t *flipped_spots_capacity);
 // 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);