1 files changed, 18 insertions, 0 deletions
diff --git a/2024/ocaml/lib/grid/cell.mli b/2024/ocaml/lib/grid/cell.mli
new file mode 100644
index 0000000..e61e34a
--- /dev/null
+++ b/2024/ocaml/lib/grid/cell.mli
@@ -0,0 +1,18 @@
+type t = {
+  value : string;
+  up : t option;
+  down : t option;
+  left : t option;
+  right : t option;
+}
+
+val create : string -> t
+val with_up : t -> t -> t
+val with_down : t -> t -> t
+val with_left : t -> t -> t
+val with_right : t -> t -> t
+val move_up : t option -> t option
+val move_down : t option -> t option
+val move_left : t option -> t option
+val move_right : t option -> t option
+val ( = ) : t -> t -> bool