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Ben Whitley b0beeab41a
Add BRP method to mutate a component (#16940) 
# Objective

Add a method to mutate components with BRP.

Currently the only way to modify a component on an entity with BRP is to
insert a new one with the new values. This isn't ideal for several
reasons, one reason being that the client has to know what all the
fields are of the component and stay in sync with the server.

## Solution

Add a new BRP method called `bevy/mutate_component` to mutate a single
field in a component on an entity.

## Testing

Tested on a simple scene on all `Transform`, `Name`, and a custom
component.

---

## Showcase

Example JSON-RPC request to change the `Name` of an entity to "New
name!"

```json
{
    "jsonrpc": "2.0",
    "id": 0,
    "method": "bevy/mutate_component",
    "params": {
        "entity": 4294967308,
        "component": "bevy_ecs::name::Name",
        "path": ".name",
        "value": "New name!"
    }
}
```

Or setting the X translation to 10.0 on a Transform:

```json
{
    "jsonrpc": "2.0",
    "id": 0,
    "method": "bevy/mutate_component",
    "params": {
        "entity": 4294967308,
        "component": "bevy_transform::components::transform::Transform",
        "path": ".translation.x",
        "value": 10.0
    }
}
```

Clip of my Emacs BRP package using this method:


https://github.com/user-attachments/assets/a786b245-5c20-4189-859f-2261c5086a68

---------

Co-authored-by: François Mockers <mockersf@gmail.com>
2025-01-14 07:55:40 +00:00
..
bevy_a11y Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_animation Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_app Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_asset Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_audio Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_color Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_core_pipeline Key render phases off the main world view entity, not the render world view entity. (#16942) 2025-01-12 20:24:17 +00:00
bevy_derive Bump Version after Release (#17176) 2025-01-06 00:04:44 +00:00
bevy_dev_tools Allow users to customize history length in FrameTimeDiagnosticsPlugin (#17259) 2025-01-12 18:18:14 +00:00
bevy_diagnostic Diagnostics smoothing factor fix (#17354) 2025-01-14 01:13:24 +00:00
bevy_dylib Bump Version after Release (#17176) 2025-01-06 00:04:44 +00:00
bevy_ecs Add std derives to SystemParam types (#16785) 2025-01-14 00:30:51 +00:00
bevy_encase_derive Bump Version after Release (#17176) 2025-01-06 00:04:44 +00:00
bevy_gilrs Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_gizmos Key render phases off the main world view entity, not the render world view entity. (#16942) 2025-01-12 20:24:17 +00:00
bevy_gltf Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_hierarchy Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_image Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_input Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_input_focus Add a simple directional UI navigation example (#17224) 2025-01-09 21:15:28 +00:00
bevy_internal Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_log Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_macro_utils Bump Version after Release (#17176) 2025-01-06 00:04:44 +00:00
bevy_math Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_mesh Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_mikktspace Bump Version after Release (#17176) 2025-01-06 00:04:44 +00:00
bevy_pbr Key render phases off the main world view entity, not the render world view entity. (#16942) 2025-01-12 20:24:17 +00:00
bevy_picking Rename PickingBehavior to Pickable (#17266) 2025-01-12 05:36:52 +00:00
bevy_ptr Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_reflect Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_remote Add BRP method to mutate a component (#16940) 2025-01-14 07:55:40 +00:00
bevy_render Key render phases off the main world view entity, not the render world view entity. (#16942) 2025-01-12 20:24:17 +00:00
bevy_scene Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_sprite Key render phases off the main world view entity, not the render world view entity. (#16942) 2025-01-12 20:24:17 +00:00
bevy_state Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_tasks Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_text update_text2d_layout creates new font atlases when the primary window is closed (#7849) 2025-01-14 01:01:31 +00:00
bevy_time Fix bevy_time tests occasionally failing on optimised Windows builds (#17349) 2025-01-14 00:30:07 +00:00
bevy_transform Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_ui Key render phases off the main world view entity, not the render world view entity. (#16942) 2025-01-12 20:24:17 +00:00
bevy_utils Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_window Downgrade clippy::allow_attributes and clippy::allow_attributes_without_reason to warn (#17320) 2025-01-12 05:28:26 +00:00
bevy_winit Make InputFocus optional in bevy_winit (#17358) 2025-01-14 05:08:20 +00:00