fix(ltk_anim): small issues

Author: Crauzer

crates/ltk_anim/src/asset/compressed/evaluator.rs

@@ -77,13 +77,8 @@ impl<'a> CompressedEvaluator<'a> {
         self.animation
             .joints
             .iter()
-            .enumerate()
-            .map(|(id, &hash)| {
-                (
-                    hash,
-                    self.state.hot_frames[id].sample(compressed_time, parametrized),
-                )
-            })
+            .zip(self.state.hot_frames.iter())
+            .map(|(&hash, hot_frame)| (hash, hot_frame.sample(compressed_time, parametrized)))
             .collect()
     }
 

crates/ltk_anim/src/asset/uncompressed/mod.rs

@@ -48,7 +48,11 @@ impl Uncompressed {
         joint_frames: HashMap<u32, Vec<UncompressedFrame>>,
     ) -> Self {
         let frame_count = joint_frames.values().next().map(|f| f.len()).unwrap_or(0);
-        let duration = frame_count as f32 / fps;
+        let duration = if fps > 0.0 {
+            frame_count as f32 / fps
+        } else {
+            0.0
+        };
         Self {
             duration,
             fps,

crates/ltk_anim/src/asset/uncompressed/write.rs

@@ -82,7 +82,8 @@ impl Uncompressed {
 
         // Write joint hashes
         let joint_hashes_offset = writer.stream_position()? as i32 - 12;
-        let joint_hashes: Vec<u32> = self.joint_frames.keys().copied().collect();
+        let mut joint_hashes: Vec<u32> = self.joint_frames.keys().copied().collect();
+        joint_hashes.sort_unstable();
         for hash in &joint_hashes {
             writer.write_u32::<LE>(*hash)?;
         }