Make EZ mod able to fail in Taiko

osu.Game.Rulesets.Taiko/Mods/TaikoModEasy.cs

@@ -1,12 +1,44 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System;
+using Humanizer;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics.Sprites;
+using osu.Game.Beatmaps;
+using osu.Game.Configuration;
+using osu.Game.Graphics;
 using osu.Game.Rulesets.Mods;
 
 namespace osu.Game.Rulesets.Taiko.Mods
 {
-    public class TaikoModEasy : ModEasy
+    public class TaikoModEasy : Mod, IApplicableToDifficulty, IApplicableFailOverride
     {
-        public override string Description => @"Beats move slower, less accuracy required, and three lives!";
+        public override string Name => "Easy";
+        public override string Acronym => "EZ";
+        public override string Description => @"Beats move slower, less accuracy required";
+        public override IconUsage? Icon => OsuIcon.ModEasy;
+        public override ModType Type => ModType.DifficultyReduction;
+        public override double ScoreMultiplier => 0.5;
+        public override bool Ranked => true;
+        public override Type[] IncompatibleMods => new[] { typeof(ModHardRock), typeof(ModDifficultyAdjust) };
+
+        public void ReadFromDifficulty(BeatmapDifficulty difficulty)
+        {
+        }
+
+        public void ApplyToDifficulty(BeatmapDifficulty difficulty)
+        {
+            const float ratio = 0.5f;
+            difficulty.CircleSize *= ratio;
+            difficulty.ApproachRate *= ratio;
+            difficulty.DrainRate *= ratio;
+            difficulty.OverallDifficulty *= ratio;
+        }
+
+        public bool PerformFail() => true;
+
+        public bool RestartOnFail => false;
+
     }
 }