同步

Packages/dev.yarnspinner.unity/Runtime/LineProviders/IAssetProvider.cs

@@ -0,0 +1,37 @@
+/*
+Yarn Spinner is licensed to you under the terms found in the file LICENSE.md.
+*/
+
+using System.Collections.Generic;
+#nullable enable
+
+namespace Yarn.Unity
+{
+    /// <summary>
+    /// Contains methods for accessing assets of a given type stored within an
+    /// object.
+    /// </summary>
+    public interface IAssetProvider
+    {
+        /// <summary>
+        /// Attempts to fetch an asset of type <typeparamref name="T"/> from the
+        /// object.
+        /// </summary>
+        /// <typeparam name="T">The type of the assets.</typeparam>
+        /// <param name="result">On return, the fetched asset, or <see
+        /// langword="null"/>.</param>
+        /// <returns><see langword="true"/> if an asset was fetched; <see
+        /// langword="false"/> otherwise.</returns>
+        public bool TryGetAsset<T>([System.Diagnostics.CodeAnalysis.NotNullWhen(true)] out T? result) where T : UnityEngine.Object;
+
+        /// <summary>
+        /// Gets a collection of assets of type <typeparamref name="T"/> from
+        /// the target.
+        /// </summary>
+        /// <typeparam name="T">The type of the asset.</typeparam>
+        /// <returns>A collection of assets. This collection may be
+        /// empty.</returns>
+        public IEnumerable<T> GetAssetsOfType<T>() where T : UnityEngine.Object;
+    }
+
+}