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# Objective - Addresses **Support processing and loading files without extensions** from #9714 - Addresses **More runtime loading configuration** from #9714 - Fixes #367 - Fixes #10703 ## Solution `AssetServer::load::<A>` and `AssetServer::load_with_settings::<A>` can now use the `Asset` type parameter `A` to select a registered `AssetLoader` without inspecting the provided `AssetPath`. This change cascades onto `LoadContext::load` and `LoadContext::load_with_settings`. This allows the loading of assets which have incorrect or ambiguous file extensions. ```rust // Allow the type to be inferred by context let handle = asset_server.load("data/asset_no_extension"); // Hint the type through the handle let handle: Handle<CustomAsset> = asset_server.load("data/asset_no_extension"); // Explicit through turbofish let handle = asset_server.load::<CustomAsset>("data/asset_no_extension"); ``` Since a single `AssetPath` no longer maps 1:1 with an `Asset`, I've also modified how assets are loaded to permit multiple asset types to be loaded from a single path. This allows for two different `AssetLoaders` (which return different types of assets) to both load a single path (if requested). ```rust // Uses GltfLoader let model = asset_server.load::<Gltf>("cube.gltf"); // Hypothetical Blob loader for data transmission (for example) let blob = asset_server.load::<Blob>("cube.gltf"); ``` As these changes are reflected in the `LoadContext` as well as the `AssetServer`, custom `AssetLoaders` can also take advantage of this behaviour to create more complex assets. --- ## Change Log - Updated `custom_asset` example to demonstrate extension-less assets. - Added `AssetServer::get_handles_untyped` and Added `AssetServer::get_path_ids` ## Notes As a part of that refactor, I chose to store `AssetLoader`s (within `AssetLoaders`) using a `HashMap<TypeId, ...>` instead of a `Vec<...>`. My reasoning for this was I needed to add a relationship between `Asset` `TypeId`s and the `AssetLoader`, so instead of having a `Vec` and a `HashMap`, I combined the two, removing the `usize` index from the adjacent maps. --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> |
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