asynchronous asset management
```rust extern crate assets; extern crate futurescpupool; extern crate serdejson;
use assets::{Asset, AssetFormat, AssetManager, FileLoader}; use futures_cpupool::CpuPool;
use std::sync::Arc;
pub struct JSONAsset(serde_json::Value);
impl Asset for JSONAsset { type Data = JSONAsset; }
impl AssetFormat for JSONAsset {
type Input = Vec
#[inline]
fn format(bytes: Self::Input, _: Self::Options) -> Result<Self::Output, Self::Error> {
let data: serde_json::Value = serde_json::from_slice(&*bytes)?;
Ok(JSONAsset(data))
}
}
pub type JSONAssetManager
= AssetManager
fn main() { let pool = Arc::new(CpuPool::newnumcpus()); let file_loader = Arc::new(FileLoader::new());
let mut json_asset_manager = JSONAssetManager::new(file_loader, pool);
// add asset and starts load with the option preload = true
let handle = json_asset_manager.add("assets/person.json", (), (), true);
println!("Total Assets {:?}", json_asset_manager.count());
println!("Assets Loading {:?}", json_asset_manager.loading_count());
println!("Assets Loaded {:?}", json_asset_manager.loaded_count());
// wait for the only event that should be emitted, which is hopefully a Load
let _load_event = json_asset_manager.wait_event().unwrap();
// if it loaded this should print the json
println!("{:?}", json_asset_manager.get(&handle).unwrap());
} ```