bevy/crates/bevy_dev_tools/src/lib.rs
ickshonpe 9098973fb9
Draw the UI debug overlay using the UI renderer (#16693)
# Objective

Draw the UI debug overlay using the UI renderer.

Significantly simpler and easier to use than
`bevy_dev_tools::ui_debug_overlay` which uses `bevy_gizmos`.
* Supports multiple windows and UI rendered to texture.
* Draws rounded debug rects for rounded UI nodes. 

Fixes #16666

## Solution

Removed the `ui_debug_overlay` module from `bevy_dev_tools`.

Added a `bevy_ui_debug` feature gate.

Draw the UI debug overlay using the UI renderer.
Adds a new module `bevy_ui::render::debug_overlay`. 

The debug overlay extraction function queries for the existing UI layout
and then adds a border around each UI node with `u32::MAX / 2` added to
each stack index so it's drawn on top.

There is a `UiDebugOptions` resource that can be used to enable or
disable the debug overlay and set the line width.

## Testing

The `testbed_ui` example has been changed to use the new debug overlay:

```
cargo run --example testbed_ui --features bevy_ui_debug
```

Press Space to toggle the debug overlay on and off.

---

## Showcase

<img width="961" alt="testbed-ui-new-debug"
src="https://github.com/user-attachments/assets/e9523d18-39ae-46a8-adbe-7d3f3ab8e951">

## Migration Guide

The `ui_debug_overlay` module has been removed from `bevy_dev_tools`.
There is a new debug overlay implemented using the `bevy_ui` renderer.
To use it, enable the `bevy_ui_debug` feature and set the `enable` field
of the `UiDebugOptions` resource to `true`.
2024-12-11 00:49:47 +00:00

53 lines
1.6 KiB
Rust

#![cfg_attr(docsrs, feature(doc_auto_cfg))]
#![forbid(unsafe_code)]
#![doc(
html_logo_url = "https://bevyengine.org/assets/icon.png",
html_favicon_url = "https://bevyengine.org/assets/icon.png"
)]
//! This crate provides additional utilities for the [Bevy game engine](https://bevyengine.org),
//! focused on improving developer experience.
use bevy_app::prelude::*;
#[cfg(feature = "bevy_ci_testing")]
pub mod ci_testing;
pub mod fps_overlay;
pub mod states;
/// Enables developer tools in an [`App`]. This plugin is added automatically with `bevy_dev_tools`
/// feature.
///
/// Warning: It is not recommended to enable this in final shipped games or applications.
/// Dev tools provide a high level of access to the internals of your application,
/// and may interfere with ordinary use and gameplay.
///
/// To enable developer tools, you can either:
///
/// - Create a custom crate feature (e.g "`dev_mode`"), which enables the `bevy_dev_tools` feature
/// along with any other development tools you might be using:
///
/// ```toml
/// [feature]
/// dev_mode = ["bevy/bevy_dev_tools", "other_dev_tools"]
/// ```
///
/// - Use `--feature bevy/bevy_dev_tools` flag when using the `cargo run` command:
///
/// `cargo run --features bevy/bevy_dev_tools`
///
/// - Add the `bevy_dev_tools` feature to the bevy dependency in your `Cargo.toml` file:
///
/// `features = ["bevy_dev_tools"]`
///
/// Note: The third method is not recommended, as it requires you to remove the feature before
/// creating a build for release to the public.
#[derive(Default)]
pub struct DevToolsPlugin;
impl Plugin for DevToolsPlugin {
fn build(&self, _app: &mut App) {}
}