recommend compatible SMAPI version in game version check error

3 files changed, 33 insertions, 19 deletions

diff --git a/src/SMAPI/Constants.cs b/src/SMAPI/Constants.cs
index 1a20ac68..83b17401 100644
--- a/src/SMAPI/Constants.cs
+++ b/src/SMAPI/Constants.cs
@@ -107,6 +107,26 @@ namespace StardewModdingAPI
         /*********
         ** Internal methods
         *********/
+        /// <summary>Get the SMAPI version to recommend for an older game version, if any.</summary>
+        /// <param name="version">The game version to search.</param>
+        /// <returns>Returns the compatible SMAPI version, or <c>null</c> if none was found.</returns>
+        internal static ISemanticVersion GetCompatibleApiVersion(ISemanticVersion version)
+        {
+            switch (version.ToString())
+            {
+                case "1.3.28":
+                    return new SemanticVersion(2, 7, 0);
+
+                case "1.2.30":
+                case "1.2.31":
+                case "1.2.32":
+                case "1.2.33":
+                    return new SemanticVersion(2, 5, 5);
+            }
+
+            return null;
+        }
+
         /// <summary>Get metadata for mapping assemblies to the current platform.</summary>
         /// <param name="targetPlatform">The target game platform.</param>
         internal static PlatformAssemblyMap GetAssemblyMap(Platform targetPlatform)
diff --git a/src/SMAPI/Framework/SCore.cs b/src/SMAPI/Framework/SCore.cs
index 47370afd..6c897382 100644
--- a/src/SMAPI/Framework/SCore.cs
+++ b/src/SMAPI/Framework/SCore.cs
@@ -159,20 +159,6 @@ namespace StardewModdingAPI.Framework
             }
 #endif
 
-            // validate game version
-            if (Constants.GameVersion.IsOlderThan(Constants.MinimumGameVersion))
-            {
-                this.Monitor.Log($"Oops! You're running Stardew Valley {Constants.GameVersion}, but the oldest supported version is {Constants.MinimumGameVersion}. Please update your game before using SMAPI.", LogLevel.Error);
-                this.PressAnyKeyToExit();
-                return;
-            }
-            if (Constants.MaximumGameVersion != null && Constants.GameVersion.IsNewerThan(Constants.MaximumGameVersion))
-            {
-                this.Monitor.Log($"Oops! You're running Stardew Valley {Constants.GameVersion}, but this version of SMAPI is only compatible up to Stardew Valley {Constants.MaximumGameVersion}. Please check for a newer version of SMAPI: https://smapi.io.", LogLevel.Error);
-                this.PressAnyKeyToExit();
-                return;
-            }
-
             // apply game patches
             new GamePatcher(this.Monitor).Apply(
                 new DialoguePatch(this.MonitorForGame, this.Reflection)
diff --git a/src/SMAPI/Program.cs b/src/SMAPI/Program.cs
index c6f39e3f..b46ecff4 100644
--- a/src/SMAPI/Program.cs
+++ b/src/SMAPI/Program.cs
@@ -83,15 +83,23 @@ namespace StardewModdingAPI
                     )
                     + "See the readme.txt file for details."
                 );
+                return;
             }
 
-            // Stardew Valley 1.2 types not present
-            if (Type.GetType($"StardewValley.LocalizedContentManager+LanguageCode, {gameAssemblyName}", throwOnError: false) == null)
+            // validate game version
+            if (Constants.GameVersion.IsOlderThan(Constants.MinimumGameVersion))
             {
-                PrintErrorAndExit(Constants.GameVersion.IsOlderThan(Constants.MinimumGameVersion)
-                    ? $"Oops! You're running Stardew Valley {Constants.GameVersion}, but the oldest supported version is {Constants.MinimumGameVersion}. Please update your game before using SMAPI."
-                    : "Oops! SMAPI doesn't seem to be compatible with your game. Make sure you're running the latest version of Stardew Valley and SMAPI."
+                ISemanticVersion suggestedApiVersion = Constants.GetCompatibleApiVersion(Constants.GameVersion);
+                PrintErrorAndExit(suggestedApiVersion != null
+                    ? $"Oops! You're running Stardew Valley {Constants.GameVersion}, but the oldest supported version is {Constants.MinimumGameVersion}. You can install SMAPI {suggestedApiVersion} instead to fix this error, or update your game to the latest version."
+                    : $"Oops! You're running Stardew Valley {Constants.GameVersion}, but the oldest supported version is {Constants.MinimumGameVersion}. Please update your game before using SMAPI."
                 );
+                return;
+            }
+            if (Constants.MaximumGameVersion != null && Constants.GameVersion.IsNewerThan(Constants.MaximumGameVersion))
+            {
+                PrintErrorAndExit($"Oops! You're running Stardew Valley {Constants.GameVersion}, but this version of SMAPI is only compatible up to Stardew Valley {Constants.MaximumGameVersion}. Please check for a newer version of SMAPI: https://smapi.io.");
+                return;
             }
         }