Merge remote-tracking branch 'upstream/master' into separate-slider-body

osu.Game.Rulesets.Mania/Mods/ManiaModDualStages.cs

@@ -5,13 +5,11 @@ using System.Collections.Generic;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Mania.Beatmaps;
 using osu.Game.Rulesets.Mania.Objects;
-using osu.Game.Rulesets.Mania.UI;
 using osu.Game.Rulesets.Mods;
-using osu.Game.Rulesets.UI;
 
 namespace osu.Game.Rulesets.Mania.Mods
 {
-    public class ManiaModDualStages : Mod, IPlayfieldTypeMod, IApplicableToBeatmapConverter, IApplicableToRulesetContainer<ManiaHitObject>
+    public class ManiaModDualStages : Mod, IPlayfieldTypeMod, IApplicableToBeatmapConverter, IApplicableToBeatmap<ManiaHitObject>
     {
         public override string Name => "Dual Stages";
         public override string ShortenedName => "DS";
@@ -34,22 +32,21 @@ namespace osu.Game.Rulesets.Mania.Mods
             mbc.TargetColumns *= 2;
         }
 
-        public void ApplyToRulesetContainer(RulesetContainer<ManiaHitObject> rulesetContainer)
+        public void ApplyToBeatmap(Beatmap<ManiaHitObject> beatmap)
         {
-            var mrc = (ManiaRulesetContainer)rulesetContainer;
-
-            // Although this can work, for now let's not allow keymods for mania-specific beatmaps
             if (isForCurrentRuleset)
                 return;
 
+            var maniaBeatmap = (ManiaBeatmap)beatmap;
+
             var newDefinitions = new List<StageDefinition>();
-            foreach (var existing in mrc.Beatmap.Stages)
+            foreach (var existing in maniaBeatmap.Stages)
             {
                 newDefinitions.Add(new StageDefinition { Columns = existing.Columns / 2 });
                 newDefinitions.Add(new StageDefinition { Columns = existing.Columns / 2 });
             }
 
-            mrc.Beatmap.Stages = newDefinitions;
+            maniaBeatmap.Stages = newDefinitions;
         }
 
         public PlayfieldType PlayfieldType => PlayfieldType.Dual;

osu.Game/Rulesets/Mods/IApplicableToBeatmap.cs

@@ -0,0 +1,22 @@
+// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Objects;
+
+namespace osu.Game.Rulesets.Mods
+{
+    /// <summary>
+    /// Interface for a <see cref="Mod"/> that applies changes to a <see cref="Beatmap"/>
+    /// after conversion and post-processing has completed.
+    /// </summary>
+    public interface IApplicableToBeatmap<TObject> : IApplicableMod
+        where TObject : HitObject
+    {
+        /// <summary>
+        /// Applies this <see cref="IApplicableToBeatmap{TObject}"/> to a <see cref="Beatmap{TObject}"/>.
+        /// </summary>
+        /// <param name="beatmap">The <see cref="Beatmap{TObject}"/> to apply to.</param>
+        void ApplyToBeatmap(Beatmap<TObject> beatmap);
+    }
+}

osu.Game/Rulesets/UI/RulesetContainer.cs

@@ -238,6 +238,8 @@ namespace osu.Game.Rulesets.UI
 
             KeyBindingInputManager = CreateInputManager();
             KeyBindingInputManager.RelativeSizeAxes = Axes.Both;
+
+            applyBeatmapMods(Mods);
         }
 
         [BackgroundDependencyLoader]
@@ -255,16 +257,29 @@ namespace osu.Game.Rulesets.UI
                 KeyBindingInputManager.Add(Cursor);
 
             // Apply mods
-            applyMods(Mods, config);
+            applyRulesetMods(Mods, config);
 
             loadObjects();
         }
 
+        /// <summary>
+        /// Applies the active mods to the Beatmap.
+        /// </summary>
+        /// <param name="mods"></param>
+        private void applyBeatmapMods(IEnumerable<Mod> mods)
+        {
+            if (mods == null)
+                return;
+
+            foreach (var mod in mods.OfType<IApplicableToBeatmap<TObject>>())
+                mod.ApplyToBeatmap(Beatmap);
+        }
+
         /// <summary>
         /// Applies the active mods to this RulesetContainer.
         /// </summary>
         /// <param name="mods"></param>
-        private void applyMods(IEnumerable<Mod> mods, OsuConfigManager config)
+        private void applyRulesetMods(IEnumerable<Mod> mods, OsuConfigManager config)
         {
             if (mods == null)
                 return;