add asset edit priority (#766)

3 files changed, 13 insertions, 3 deletions

diff --git a/src/SMAPI/Framework/Content/AssetEditOperation.cs b/src/SMAPI/Framework/Content/AssetEditOperation.cs
index 14db231c..818209fa 100644
--- a/src/SMAPI/Framework/Content/AssetEditOperation.cs
+++ b/src/SMAPI/Framework/Content/AssetEditOperation.cs
@@ -1,4 +1,5 @@
 using System;
+using StardewModdingAPI.Events;
 
 namespace StardewModdingAPI.Framework.Content
 {
@@ -11,6 +12,9 @@ namespace StardewModdingAPI.Framework.Content
         /// <summary>The mod applying the edit.</summary>
         public IModMetadata Mod { get; }
 
+        /// <summary>If there are multiple edits that apply to the same asset, the priority with which this one should be applied.</summary>
+        public AssetEditPriority Priority { get; }
+
         /// <summary>The content pack on whose behalf the edit is being applied, if any.</summary>
         public IModMetadata OnBehalfOf { get; }
 
@@ -23,11 +27,13 @@ namespace StardewModdingAPI.Framework.Content
         *********/
         /// <summary>Construct an instance.</summary>
         /// <param name="mod">The mod applying the edit.</param>
+        /// <param name="priority">If there are multiple edits that apply to the same asset, the priority with which this one should be applied.</param>
         /// <param name="onBehalfOf">The content pack on whose behalf the edit is being applied, if any.</param>
         /// <param name="applyEdit">Apply the edit to an asset.</param>
-        public AssetEditOperation(IModMetadata mod, IModMetadata onBehalfOf, Action<IAssetData> applyEdit)
+        public AssetEditOperation(IModMetadata mod, AssetEditPriority priority, IModMetadata onBehalfOf, Action<IAssetData> applyEdit)
         {
             this.Mod = mod;
+            this.Priority = priority;
             this.OnBehalfOf = onBehalfOf;
             this.ApplyEdit = applyEdit;
         }
diff --git a/src/SMAPI/Framework/ContentCoordinator.cs b/src/SMAPI/Framework/ContentCoordinator.cs
index fc137e50..8e7465de 100644
--- a/src/SMAPI/Framework/ContentCoordinator.cs
+++ b/src/SMAPI/Framework/ContentCoordinator.cs
@@ -640,6 +640,7 @@ namespace StardewModdingAPI.Framework
                     {
                         new AssetEditOperation(
                             mod: editor.Mod,
+                            priority: AssetEditPriority.Default,
                             onBehalfOf: null,
                             applyEdit: assetData => editor.Data.Edit<T>(assetData)
                         )
diff --git a/src/SMAPI/Framework/ContentManagers/GameContentManager.cs b/src/SMAPI/Framework/ContentManagers/GameContentManager.cs
index 16eddb00..a121f4c0 100644
--- a/src/SMAPI/Framework/ContentManagers/GameContentManager.cs
+++ b/src/SMAPI/Framework/ContentManagers/GameContentManager.cs
@@ -82,9 +82,12 @@ namespace StardewModdingAPI.Framework.ContentManagers
             AssetLoadOperation[] loaders = this.GetLoaders<object>(info).ToArray();
 
             if (!this.AssertMaxOneRequiredLoader(info, loaders, out string error))
+            {
                 this.Monitor.Log(error, LogLevel.Warn);
+                return false;
+            }
 
-            return loaders.Length == 1;
+            return loaders.Any();
         }
 
         /// <inheritdoc />
@@ -334,7 +337,7 @@ namespace StardewModdingAPI.Framework.ContentManagers
             }
 
             // edit asset
-            AssetEditOperation[] editors = this.GetEditors<T>(info).ToArray();
+            AssetEditOperation[] editors = this.GetEditors<T>(info).OrderBy(p => p.Priority).ToArray();
             foreach (AssetEditOperation editor in editors)
             {
                 IModMetadata mod = editor.Mod;