1 files changed, 47 insertions, 0 deletions
diff --git a/src/StardewModdingAPI/IAssetData.cs b/src/StardewModdingAPI/IAssetData.cs
new file mode 100644
index 00000000..c3021144
--- /dev/null
+++ b/src/StardewModdingAPI/IAssetData.cs
@@ -0,0 +1,47 @@
+using System;
+
+namespace StardewModdingAPI
+{
+    /// <summary>Generic metadata and methods for a content asset being loaded.</summary>
+    /// <typeparam name="TValue">The expected data type.</typeparam>
+    public interface IAssetData<TValue> : IAssetInfo
+    {
+        /*********
+        ** Accessors
+        *********/
+        /// <summary>The content data being read.</summary>
+        TValue Data { get; }
+
+
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Replace the entire content value with the given value. This is generally not recommended, since it may break compatibility with other mods or different versions of the game.</summary>
+        /// <param name="value">The new content value.</param>
+        /// <exception cref="ArgumentNullException">The <paramref name="value"/> is null.</exception>
+        /// <exception cref="InvalidCastException">The <paramref name="value"/>'s type is not compatible with the loaded asset's type.</exception>
+        void ReplaceWith(TValue value);
+    }
+
+    /// <summary>Generic metadata and methods for a content asset being loaded.</summary>
+    public interface IAssetData : IAssetData<object>
+    {
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Get a helper to manipulate the data as a dictionary.</summary>
+        /// <typeparam name="TKey">The expected dictionary key.</typeparam>
+        /// <typeparam name="TValue">The expected dictionary value.</typeparam>
+        /// <exception cref="InvalidOperationException">The content being read isn't a dictionary.</exception>
+        IAssetDataForDictionary<TKey, TValue> AsDictionary<TKey, TValue>();
+
+        /// <summary>Get a helper to manipulate the data as an image.</summary>
+        /// <exception cref="InvalidOperationException">The content being read isn't an image.</exception>
+        IAssetDataForImage AsImage();
+
+        /// <summary>Get the data as a given type.</summary>
+        /// <typeparam name="TData">The expected data type.</typeparam>
+        /// <exception cref="InvalidCastException">The data can't be converted to <typeparamref name="TData"/>.</exception>
+        TData GetData<TData>();
+    }
+}