Add bindable mods and autoplay support.

osu.Game/Beatmaps/WorkingBeatmap.cs

@@ -4,6 +4,7 @@
 using System;
 using System.IO;
 using osu.Framework.Audio.Track;
+using osu.Framework.Configuration;
 using osu.Framework.Graphics.Textures;
 using osu.Game.Beatmaps.Formats;
 using osu.Game.Beatmaps.IO;
@@ -26,6 +27,8 @@ namespace osu.Game.Beatmaps
 
         public PlayMode PlayMode => beatmap?.BeatmapInfo?.Mode > PlayMode.Osu ? beatmap.BeatmapInfo.Mode : PreferredPlayMode ?? PlayMode.Osu;
 
+        public readonly Bindable<Mod[]> Mods = new Bindable<Mod[]>();
+
         public readonly bool WithStoryboard;
 
         protected abstract ArchiveReader GetReader();

osu.Game/Modes/Mod.cs

@@ -4,6 +4,8 @@
 using System;
 using System.ComponentModel;
 using osu.Game.Graphics;
+using osu.Game.Modes.UI;
+using osu.Game.Screens.Play;
 
 namespace osu.Game.Modes
 {
@@ -41,6 +43,12 @@ namespace osu.Game.Modes
         /// The mods this mod cannot be enabled with.
         /// </summary>
         public abstract Mods[] DisablesMods { get; }
+
+        /// <summary>
+        /// Direct access to the Player before load has run.
+        /// </summary>
+        /// <param name="player"></param>
+        public virtual void PlayerLoading(Player player) { }
     }
 
     public class MultiMod : Mod
@@ -150,6 +158,12 @@ namespace osu.Game.Modes
         public override double ScoreMultiplier => 0;
         public override bool Ranked => false;
         public override Mods[] DisablesMods => new Mods[] { Mods.Relax, Mods.Autopilot, Mods.SpunOut, Mods.SuddenDeath, Mods.Perfect };
+
+        public override void PlayerLoading(Player player)
+        {
+            base.PlayerLoading(player);
+            player.ReplayInputHandler = Ruleset.GetRuleset(player.Beatmap.PlayMode).CreateAutoplayScore(player.Beatmap.Beatmap)?.Replay?.GetInputHandler();
+        }
     }
 
     public abstract class ModPerfect : ModSuddenDeath

osu.Game/Screens/Play/Player.cs

@@ -17,6 +17,7 @@ using osu.Game.Configuration;
 using osu.Framework.Configuration;
 using System;
 using System.Linq;
+using osu.Framework.Extensions.IEnumerableExtensions;
 using OpenTK.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Transforms;
@@ -66,6 +67,17 @@ namespace osu.Game.Screens.Play
         [BackgroundDependencyLoader]
         private void load(AudioManager audio, BeatmapDatabase beatmaps, OsuGameBase game, OsuConfigManager config)
         {
+            var beatmap = Beatmap.Beatmap;
+
+            if (beatmap.BeatmapInfo?.Mode > PlayMode.Osu)
+            {
+                //we only support osu! mode for now because the hitobject parsing is crappy and needs a refactor.
+                Exit();
+                return;
+            }
+
+            Beatmap.Mods.Value.ForEach(m => m.PlayerLoading(this));
+
             dimLevel = config.GetBindable<int>(OsuConfig.DimLevel);
             mouseWheelDisabled = config.GetBindable<bool>(OsuConfig.MouseDisableWheel);
 
@@ -102,15 +114,6 @@ namespace osu.Game.Screens.Play
                 sourceClock.Reset();
             });
 
-            var beatmap = Beatmap.Beatmap;
-
-            if (beatmap.BeatmapInfo?.Mode > PlayMode.Osu)
-            {
-                //we only support osu! mode for now because the hitobject parsing is crappy and needs a refactor.
-                Exit();
-                return;
-            }
-
             ruleset = Ruleset.GetRuleset(Beatmap.PlayMode);
 
             scoreOverlay = ruleset.CreateScoreOverlay();

osu.Game/Screens/Play/PlayerInputManager.cs

@@ -8,6 +8,7 @@ using osu.Game.Configuration;
 using System.Linq;
 using osu.Framework.Input.Handlers;
 using osu.Framework.Timing;
+using osu.Game.Beatmaps;
 using osu.Game.Input.Handlers;
 using OpenTK.Input;
 using KeyboardState = osu.Framework.Input.KeyboardState;

osu.Game/Screens/Select/PlaySongSelect.cs

@@ -337,6 +337,8 @@ namespace osu.Game.Screens.Select
         {
             base.OnBeatmapChanged(beatmap);
 
+            beatmap.Mods.BindTo(modSelect.SelectedMods);
+
             //todo: change background in selectionChanged instead; support per-difficulty backgrounds.
             changeBackground(beatmap);
             carousel.SelectBeatmap(beatmap?.BeatmapInfo);