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scene_loader.rs
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scene_loader.rs
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use crate::serde::SceneDeserializer;
use anyhow::Result;
use bevy_app::AppTypeRegistry;
use bevy_asset::{AssetLoader, LoadContext, LoadedAsset};
use bevy_ecs::world::{FromWorld, World};
use bevy_reflect::TypeRegistryArc;
use bevy_utils::BoxedFuture;
use serde::de::DeserializeSeed;
#[derive(Debug)]
pub struct SceneLoader {
type_registry: TypeRegistryArc,
}
impl FromWorld for SceneLoader {
fn from_world(world: &mut World) -> Self {
let type_registry = world.resource::<AppTypeRegistry>();
SceneLoader {
type_registry: type_registry.0.clone(),
}
}
}
impl AssetLoader for SceneLoader {
fn load<'a>(
&'a self,
bytes: &'a [u8],
load_context: &'a mut LoadContext,
) -> BoxedFuture<'a, Result<()>> {
Box::pin(async move {
let mut deserializer = ron::de::Deserializer::from_bytes(bytes)?;
let scene_deserializer = SceneDeserializer {
type_registry: &*self.type_registry.read(),
};
let scene = scene_deserializer.deserialize(&mut deserializer)?;
load_context.set_default_asset(LoadedAsset::new(scene));
Ok(())
})
}
fn extensions(&self) -> &[&str] {
&["scn", "scn.ron"]
}
}