Fix add_gap function to push heights

1 files changed, 1 insertions, 1 deletions

diff --git a/src/structs.rs b/src/structs.rs
index 55cff29..c61bb14 100755
--- a/src/structs.rs
+++ b/src/structs.rs
@@ -63,7 +63,7 @@ impl GapHeights {
     }
 
     pub fn add_gap(&mut self, height: u32) {
-        self.add_gap(height)
+        self.heights.push(height)
     }
 
     pub fn calculate_row(&self, r: u32, stones: &mut [u32]) {