1 files changed, 13 insertions, 13 deletions
diff --git a/src/board.h b/src/board.h
index caa4e69..f369743 100644
--- a/src/board.h
+++ b/src/board.h
@@ -2,6 +2,7 @@
 #define BOARD_ROW_BYTES ((BOARD_WIDTH * 2) + 1)
 #define BOARD_BYTES BOARD_ROW_BYTES * BOARD_ROW_BYTES
 
+
 char EMPTY = ' ';
 
 int neighbor_increments[] = {
@@ -11,27 +12,26 @@ int neighbor_increments[] = {
   - 1
 };
 
-// Board
-void initialize_board(char* board);
 
-void print_board(char* board);
+/* structs */
+typedef struct {
+  char edges[4];
+  char center;
+} Tile;
 
+/* board */
+void initialize_board(char* board);
+void print_board(char* board);
 void write_board(char* board, char* filename);
-
 void read_board(char* board, char* filename);
 
-// Moves
-int is_allowed_placement(char* tile, int index, char* board);
-
+/* moves */
+int is_allowed_placement(Tile tile, int index, char* board);
 int translate_coordinate(int index);
-
 int is_center_index(int index);
+int place_tile(Tile tile, int index, char* board, int force);
 
-int place_tile(char* tile, int index, char* board, int force);
-
-// Structures
+/* structures */
 void traverse_structure(char id, int index, char* board, char* structures);
-
 void create_structure_mask(char* board, char* structures);
-
 int evaluate_structure(int index, char* board, char* structures);