feat: share edges between neighboring tiles

1 files changed, 14 insertions, 10 deletions

diff --git a/src/board.h b/src/board.h
index 442b03d..f5d2da3 100644
--- a/src/board.h
+++ b/src/board.h
@@ -1,12 +1,15 @@
-#define TILE_SIZE 5
-#define BOARD_WIDTH 6
-#define BOARD_BYTES TILE_SIZE * (BOARD_WIDTH * BOARD_WIDTH)
+#define BOARD_WIDTH 2
+#define BOARD_ROW_BYTES ((BOARD_WIDTH * 2) + 1)
+#define BOARD_BYTES BOARD_ROW_BYTES * BOARD_ROW_BYTES
 
-int direction_increments[] = {
-  - TILE_SIZE * BOARD_WIDTH + 2,
-    TILE_SIZE               + 2,
-    TILE_SIZE * BOARD_WIDTH - 2,
-  - TILE_SIZE               - 2
+char EMPTY = ' ';
+char FORBIDDEN = ' ';
+
+int neighbor_increments[] = {
+  - BOARD_ROW_BYTES,
+    1,
+    BOARD_ROW_BYTES,
+  - 1
 };
 
 // Board
@@ -15,7 +18,8 @@ void initialize_board(char* board);
 void print_board(char* board);
 
 // Moves
-int check_allowed_tile(char* tile, int position, char* board);
+int is_allowed_placement(char* tile, int position, char* board);
 
-void place_tile(char* tile, int position, char* board);
+int is_center_position(int position);
 
+int place_tile(char* tile, int position, char* board);