Trait zengine_asset::Asset

source · [−]

pub trait Asset: Downcast + Send + Sync + Debug + 'static {
    fn next_counter() -> u64
    where
        Self: Sized;
}

Expand description

An Asset rappresent any kind of external data like images, sound, text file etc..

To load and asset into you game you have to load from the filesystem with AssetManager::load

You should avoid to implement the Asset trait manually and use instead the asset derive macro

Required Methods

source

fn next_counter() -> u64where
Self: Sized,

Returns an unique asset id.

Normally it’s used the asset path as unique id but in case this is not possible (eg: get multiple id for the same asset path) the engine will call this function.

The asset derive macro implement this function in the following way

static ASSETTEST_COUNTER: std::sync::atomic::AtomicU64 = std::sync::atomic::AtomicU64::new(0);
impl Asset for AssetTest {
   fn next_counter() -> u64
   where
       Self: Sized,
   {
       ASSETTEST_COUNTER.fetch_add(1, std::sync::atomic::Ordering::Relaxed)
   }
}