Fix crash on integer overflow in debug mode (#973)

* Fix crash on integer overflow in debug mode * Use saturating_add_signed function
Leafwing-Studios · Jun 21, 2023 · 99aea67 · 99aea67
1 parent e6bb9fd
commit 99aea67
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/emergence_lib/src/geometry/position.rs b/emergence_lib/src/geometry/position.rs
@@ -335,13 +335,13 @@ impl VoxelPos {
         let mut reachable_neighbors = [Self::ZERO; 21];
 
         for layer in 0..=2 {
-            let height_offset = DiscreteHeight(layer as u8 - 1);
+            let height_offset = layer as i8 - 1;
             for (i, &hex) in hexagon.iter().enumerate() {
                 let index = layer * 7 + i;
 
                 reachable_neighbors[index] = VoxelPos {
                     hex,
-                    height: self.height + height_offset,
+                    height: DiscreteHeight(self.height.0.saturating_add_signed(height_offset)),
                 };
             }
         }