This PR updates the Transform > Rotation section of the Entity Inspector
to display Euler angles in degrees instead of the vector component of
the input quaternion.
Additionally, this updates the `studio/ui/inspector` module to add a
special-case function for updating the selected entity's rotation from
the inspector in a way that's consistent with the behavior of the
rotation gizmo.
### Known Issues
The values displayed for the angles in the inspector are not always
intuitive, especially while actively manipulating them. To some extent
this is just the nature of Euler angles (e.g., Unreal Engine exhibits
similar issues), but I suspect there's room for improvement of our
implementation (e.g., Unreal's rotation display is typically _more_ sane
than ours).
Regardless, fixing this requires a firmer grasp of the math than I
possess, so a fix for this issue is not currently planned.
This PR adds Material component inspection to the frontend Entity
Inspector, and adds functional editing capabilities for the Transform
and Material inspectors.
### Changes
* Added a `ScalarFieldElement` for numeric form fields, with a hybrid
slider/text-input UX inspired by Blender, Unreal Engine, etc.
* Added `MaterialInspectorElement` for inspecting the Bevy
`StandardMaterial` component
* Wired up the `TransformInspectorElement` and
`MaterialInspectorElement` to apply changes made in the UI to the Bevy
scene
* Refactored the `studio/ui/inspector` module to output `Result::Err`s
to the dev console
* Refactored the `studio/interaction/selection` module to use only the
`Selection` resource, removing the redundant `Selected` component which
added some unnecessary complexity. This fixes#39
* Fixed primitive shapes not receiving a selection outline when selected
### To-Do
These tasks will be addressed in a forthcoming PR:
* The **Transform** > **Rotation** section in the inspector is still not
displaying sensible values. Currently it's just displaying the raw
quaternion `xyz` vector rather than displaying the orientation in
human-readable terms (e.g., as Euler angles).
* We're currently ignoring the Primitive Shape component, which would
allow the user to configure some additional geometric properties of the
shape or replace it with a different one.
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Co-authored-by: rewin <rewin1996@gmail.com>
Lee-Orr