79 lines
2.0 KiB
Rust
79 lines
2.0 KiB
Rust
#[cfg(target_arch = "wasm32")]
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extern crate console_error_panic_hook;
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use bevy::{
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asset::{AssetLoader, AssetServerSettings, LoadContext, LoadedAsset},
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prelude::*,
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type_registry::TypeUuid,
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utils::BoxedFuture,
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};
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fn main() {
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#[cfg(target_arch = "wasm32")]
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{
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std::panic::set_hook(Box::new(console_error_panic_hook::hook));
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console_log::init_with_level(log::Level::Debug).expect("cannot initialize console_log");
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}
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App::build()
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.add_resource(AssetServerSettings {
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asset_folder: "/".to_string(),
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})
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.add_plugins(DefaultPlugins)
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.add_asset::<RustSourceCode>()
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.init_asset_loader::<RustSourceCodeLoader>()
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.add_startup_system(load_asset.system())
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.add_system(print_asset.system())
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.run();
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}
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struct State {
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handle: Handle<RustSourceCode>,
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printed: bool,
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}
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fn load_asset(mut commands: Commands, asset_server: Res<AssetServer>) {
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commands.insert_resource(State {
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handle: asset_server.load("assets_wasm.rs"),
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printed: false,
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});
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}
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fn print_asset(mut state: ResMut<State>, rust_sources: Res<Assets<RustSourceCode>>) {
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if state.printed {
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return;
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}
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if let Some(code) = rust_sources.get(&state.handle) {
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log::info!("code: {}", code.0);
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state.printed = true;
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}
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}
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#[derive(Debug, TypeUuid)]
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#[uuid = "1c3445ab-97d3-449c-ab35-16ba30e4c29d"]
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pub struct RustSourceCode(pub String);
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#[derive(Default)]
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pub struct RustSourceCodeLoader;
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impl AssetLoader for RustSourceCodeLoader {
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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<(), anyhow::Error>> {
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Box::pin(async move {
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load_context.set_default_asset(LoadedAsset::new(RustSourceCode(String::from_utf8(
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bytes.into(),
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)?)));
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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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static EXT: &[&str] = &["rs"];
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EXT
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}
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}
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