Add a path_length() function

1 files changed, 2 insertions, 0 deletions

diff --git a/path.h b/path.h
index 37c410a..12cfa80 100644
--- a/path.h
+++ b/path.h
@@ -14,6 +14,8 @@ size_t diagonal_distance(Position a, Position b);
 
 void path_free(Path path, size_t height);
 
+size_t path_length(Path path, Position start, Position goal);
+
 /* Helper funcs for the visited array */
 char **visited_new(size_t width, size_t height);
 void visited_clear(char **visited, size_t width, size_t height);