Implement Spatial Query Raycast sorting like with Raycaster/RayHits component

[jacobrolph98]

Using the Raycast/hit components, RayHits implements iter_sorted() to sort results by time_of_impact. There is no such feature when using Spatial Query raycasting, as it returns Vec. Cannot use vec.sort as RayHitData doesn't implement Ord, etc

Please let me know if I'm missing something.

[Jondolf]

You can sort the vector with sort_by:

hits.sort_by(|a, b| a.time_of_impact.partial_cmp(&b.time_of_impact).unwrap())

RayHitData currently doesn't implement Ord for the same reason Vec<f32> doesn't implement Ord; floats inherently aren't totally ordered due to precision issues. Instead, Ord would have to be like a PartialOrd implementation and use partial_cmp like the code above, which probably wouldn't be semantically correct. For usability reasons it could be nice though