From c1331cef1b7364a3ba42fb3e80f5f6a4cd6f49a6 Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Mon, 22 Jan 2018 15:52:54 +0900
Subject: [PATCH] Disallow DualStages for non-converted beatmaps

---
 osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs | 4 ++++
 osu.Game/Rulesets/UI/RulesetContainer.cs           | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs b/osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs
index 1ba4ef9af1..3330d87e88 100644
--- a/osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs
+++ b/osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs
@@ -34,6 +34,10 @@ namespace osu.Game.Rulesets.Mania.Mods
         {
             var mrc = (ManiaRulesetContainer)rulesetContainer;
 
+            // Although this can work, for now let's not allow keymods for mania-specific beatmaps
+            if (mrc.IsForCurrentRuleset)
+                return;
+
             var newDefinitions = new List<StageDefinition>();
             foreach (var existing in mrc.Beatmap.Stages)
             {
diff --git a/osu.Game/Rulesets/UI/RulesetContainer.cs b/osu.Game/Rulesets/UI/RulesetContainer.cs
index bb4466208b..375af75347 100644
--- a/osu.Game/Rulesets/UI/RulesetContainer.cs
+++ b/osu.Game/Rulesets/UI/RulesetContainer.cs
@@ -154,7 +154,7 @@ namespace osu.Game.Rulesets.UI
         /// <summary>
         /// Whether the specified beatmap is assumed to be specific to the current ruleset.
         /// </summary>
-        protected readonly bool IsForCurrentRuleset;
+        public readonly bool IsForCurrentRuleset;
 
         public override ScoreProcessor CreateScoreProcessor() => new ScoreProcessor<TObject>(this);