2aaaed7f69
# Objective bevy-scene does not have a reason to depend on bevy-render except to include the `Visibility` and `ComputedVisibility` components. Including that in the dependency chain is unnecessary for people not using `bevy_render`. Also fixed a problem where compilation fails when the `serialize` feature was not enabled. ## Solution This was added in #5335 to address some of the problems caused by #5310. Imo the user just always have to remember to include `VisibilityBundle` when they spawn `SceneBundle` or `DynamicSceneBundle`, but that will be a breaking change. This PR makes `bevy_render` an optional dependency of `bevy_scene` instead to respect the existing behavior.
59 lines
1.7 KiB
Rust
59 lines
1.7 KiB
Rust
#[cfg(feature = "serialize")]
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use crate::serde::SceneDeserializer;
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use anyhow::{anyhow, Result};
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use bevy_app::AppTypeRegistry;
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use bevy_asset::{AssetLoader, LoadContext, LoadedAsset};
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use bevy_ecs::world::{FromWorld, World};
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use bevy_reflect::TypeRegistryArc;
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use bevy_utils::BoxedFuture;
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#[cfg(feature = "serialize")]
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use serde::de::DeserializeSeed;
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#[derive(Debug)]
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pub struct SceneLoader {
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type_registry: TypeRegistryArc,
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}
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impl FromWorld for SceneLoader {
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fn from_world(world: &mut World) -> Self {
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let type_registry = world.resource::<AppTypeRegistry>();
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SceneLoader {
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type_registry: type_registry.0.clone(),
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}
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}
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}
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#[cfg(feature = "serialize")]
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impl AssetLoader for SceneLoader {
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fn load<'a>(
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&'a self,
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bytes: &'a [u8],
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load_context: &'a mut LoadContext,
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) -> BoxedFuture<'a, Result<()>> {
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Box::pin(async move {
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let mut deserializer = ron::de::Deserializer::from_bytes(bytes)?;
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let scene_deserializer = SceneDeserializer {
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type_registry: &self.type_registry.read(),
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};
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let scene = scene_deserializer
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.deserialize(&mut deserializer)
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.map_err(|e| {
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let span_error = deserializer.span_error(e);
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anyhow!(
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"{} at {}:{}",
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span_error.code,
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load_context.path().to_string_lossy(),
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span_error.position,
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)
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})?;
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load_context.set_default_asset(LoadedAsset::new(scene));
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Ok(())
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})
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}
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fn extensions(&self) -> &[&str] {
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&["scn", "scn.ron"]
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}
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}
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