bevy_convars/loader/
assets.rs

1use bevy_asset::{Asset, AssetLoader, Assets, AsyncReadExt as _, Handle};
2use bevy_ecs::world::World;
3use bevy_reflect::Reflect;
4use std::error::Error;
5use toml_edit::ImDocument;
6
7use crate::CVarError;
8
9use super::{ConfigLoader, DocumentContext};
10
11impl ConfigLoader {
12    /// Applies a given config to the world.
13    pub fn apply_asset(
14        &self,
15        world: &mut World,
16        asset: Handle<CVarConfig>,
17    ) -> Result<(), CVarError> {
18        let document = world
19            .resource::<Assets<CVarConfig>>()
20            .get(&asset)
21            .unwrap()
22            .clone()
23            .0;
24
25        self.apply(world, document)?;
26
27        Ok(())
28    }
29}
30
31/// A config as an asset, allowing you to use standard bevy asset loading.
32#[derive(Asset, Reflect, Clone)]
33pub struct CVarConfig(#[reflect(ignore)] pub(super) DocumentContext<String>);
34
35/// Provides an asset loader for [CVarConfig].
36#[derive(Default)]
37pub struct ConfigAssetLoader {}
38
39impl AssetLoader for ConfigAssetLoader {
40    type Asset = CVarConfig;
41
42    type Settings = ();
43
44    type Error = Box<dyn Error + Send + Sync + 'static>;
45
46    async fn load(
47        &self,
48        reader: &mut dyn bevy_asset::io::Reader,
49        _: &Self::Settings,
50        load_context: &mut bevy_asset::LoadContext<'_>,
51    ) -> Result<Self::Asset, Self::Error> {
52        let mut buf = String::new();
53
54        reader.read_to_string(&mut buf).await?;
55
56        Ok(CVarConfig(DocumentContext::new(
57            ImDocument::parse(buf)?,
58            load_context.path().to_str().unwrap().to_owned(),
59        )))
60    }
61}
bevy_convars/loader/assets.rs

bevy_convars/loader/
assets.rs
