temporarily restore Harmony 1.x support with compile flag (#711)

3 files changed, 52 insertions, 0 deletions

diff --git a/src/SMAPI/Framework/Patching/GamePatcher.cs b/src/SMAPI/Framework/Patching/GamePatcher.cs
index dcad285a..82d7b9c8 100644
--- a/src/SMAPI/Framework/Patching/GamePatcher.cs
+++ b/src/SMAPI/Framework/Patching/GamePatcher.cs
@@ -1,5 +1,9 @@
 using System;
+#if HARMONY_2
 using HarmonyLib;
+#else
+using Harmony;
+#endif
 
 namespace StardewModdingAPI.Framework.Patching
 {
@@ -27,7 +31,11 @@ namespace StardewModdingAPI.Framework.Patching
         /// <param name="patches">The patches to apply.</param>
         public void Apply(params IHarmonyPatch[] patches)
         {
+#if HARMONY_2
             Harmony harmony = new Harmony("SMAPI");
+#else
+            HarmonyInstance harmony = HarmonyInstance.Create("SMAPI");
+#endif
             foreach (IHarmonyPatch patch in patches)
             {
                 try
diff --git a/src/SMAPI/Framework/Patching/IHarmonyPatch.cs b/src/SMAPI/Framework/Patching/IHarmonyPatch.cs
index 7d5eb3d4..922243fa 100644
--- a/src/SMAPI/Framework/Patching/IHarmonyPatch.cs
+++ b/src/SMAPI/Framework/Patching/IHarmonyPatch.cs
@@ -1,4 +1,8 @@
+#if HARMONY_2
 using HarmonyLib;
+#else
+using Harmony;
+#endif
 
 namespace StardewModdingAPI.Framework.Patching
 {
@@ -10,6 +14,10 @@ namespace StardewModdingAPI.Framework.Patching
 
         /// <summary>Apply the Harmony patch.</summary>
         /// <param name="harmony">The Harmony instance.</param>
+#if HARMONY_2
         void Apply(Harmony harmony);
+#else
+        void Apply(HarmonyInstance harmony);
+#endif
     }
 }
diff --git a/src/SMAPI/Framework/Patching/PatchHelper.cs b/src/SMAPI/Framework/Patching/PatchHelper.cs
new file mode 100644
index 00000000..d1aa0185
--- /dev/null
+++ b/src/SMAPI/Framework/Patching/PatchHelper.cs
@@ -0,0 +1,36 @@
+#if !HARMONY_2
+using System;
+using System.Collections.Generic;
+
+namespace StardewModdingAPI.Framework.Patching
+{
+    /// <summary>Provides generic methods for implementing Harmony patches.</summary>
+    internal class PatchHelper
+    {
+        /*********
+        ** Fields
+        *********/
+        /// <summary>The interception keys currently being intercepted.</summary>
+        private static readonly HashSet<string> InterceptingKeys = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+
+
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Track a method that will be intercepted.</summary>
+        /// <param name="key">The intercept key.</param>
+        /// <returns>Returns false if the method was already marked for interception, else true.</returns>
+        public static bool StartIntercept(string key)
+        {
+            return PatchHelper.InterceptingKeys.Add(key);
+        }
+
+        /// <summary>Track a method as no longer being intercepted.</summary>
+        /// <param name="key">The intercept key.</param>
+        public static void StopIntercept(string key)
+        {
+            PatchHelper.InterceptingKeys.Remove(key);
+        }
+    }
+}
+#endif