fix crash in handle_wants_lookat/trans.up() when trans.translation is 0

2024-09-16 04:07:36 +02:00 · 2024-09-16 04:07:36 +02:00 · cdc1dcec36
parent cb34bba7d8
commit cdc1dcec36
1 changed files with 6 additions and 1 deletions
--- a/src/actor.rs
+++ b/src/actor.rs
@ -624,7 +624,12 @@ fn handle_wants_lookat(
        } else {
            continue;
        };
-        rot.0 = look_at_quat(**pos, target_pos, trans.up().as_dvec3());
+        let up = if trans.translation.length_squared() > 1e-6 {
+            trans.up()
+        } else {
+            Dir3::Y
+        };
+        rot.0 = look_at_quat(**pos, target_pos, up.as_dvec3());
    }
 }