bevy/crates/bevy_gizmos
Robert Walter 210c79c9f9
Gizmos: arc_2d utility helpers (#14932)
# Objective

Since https://github.com/bevyengine/bevy/pull/14731 is merged, it
unblocked a few utility methods for 2D arcs. In 2D the pendant to
`long_arc_3d_between` and `short_arc_3d_between` are missing. Since
`arc_2d` can be a bit hard to use, this PR is trying to plug some holes
in the `arcs` API.

## Solution

Implement

- `long_arc_2d_between(center, from, tp, color)`
- `short_arc_2d_between(center, from, tp, color)`

## Testing

- There are new doc tests
- The `2d_gizmos` example has been extended a bit to include a few more
arcs which can easily be checked with respect to the grid

---

## Showcase


![image](https://github.com/user-attachments/assets/b90ad8b1-86c2-4304-a481-4f9a5246c457)

Code related to the screenshot (from outer = first line to inner = last
line)

```rust
    my_gizmos.arc_2d(Isometry2d::IDENTITY, FRAC_PI_2, 80.0, ORANGE_RED);
    my_gizmos.short_arc_2d_between(Vec2::ZERO, Vec2::X * 40.0, Vec2::Y * 40.0, ORANGE_RED);
    my_gizmos.long_arc_2d_between(Vec2::ZERO, Vec2::X * 20.0, Vec2::Y * 20.0, ORANGE_RED);
```
2024-08-28 11:33:11 +00:00
..
macros Generate links to definition in source code pages on docs.rs and dev-docs.bevyengine.org (#12965) 2024-07-29 23:10:16 +00:00
src Gizmos: arc_2d utility helpers (#14932) 2024-08-28 11:33:11 +00:00
Cargo.toml Making bevy_render an optional dependency for bevy_gizmos (#14448) 2024-08-06 13:09:10 +00:00
README.md Add README.md to all crates (#13184) 2024-05-02 18:56:00 +00:00

Bevy Gizmos

License Crates.io Downloads Docs Discord