From 0ec7c11a90f6ec343752ea786a5adf4078c06f7c Mon Sep 17 00:00:00 2001
From: unknown <chris20194@googlemail.com>
Date: Fri, 10 May 2019 19:44:22 +0200
Subject: [PATCH] implement CatchModRelax

---
 osu.Game.Rulesets.Catch/Mods/CatchModRelax.cs | 44 +++++++++++++++++--
 1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/osu.Game.Rulesets.Catch/Mods/CatchModRelax.cs b/osu.Game.Rulesets.Catch/Mods/CatchModRelax.cs
index 0454bc969d..47e32b1292 100644
--- a/osu.Game.Rulesets.Catch/Mods/CatchModRelax.cs
+++ b/osu.Game.Rulesets.Catch/Mods/CatchModRelax.cs
@@ -1,12 +1,48 @@
 // 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 osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Input;
+using osu.Framework.Input.Bindings;
+using osu.Framework.Input.Events;
+using osu.Game.Rulesets.Catch.Objects;
+using osu.Game.Rulesets.Catch.UI;
 using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.UI;
+using osuTK;
+using System;
 
-namespace osu.Game.Rulesets.Catch.Mods
-{
-    public class CatchModRelax : ModRelax
-    {
+namespace osu.Game.Rulesets.Catch.Mods {
+    public class CatchModRelax : ModRelax, IApplicableToDrawableRuleset<CatchHitObject> {
         public override string Description => @"Use the mouse to control the catcher.";
+
+        public void ApplyToDrawableRuleset(DrawableRuleset<CatchHitObject> drawableRuleset) =>
+            (drawableRuleset.Playfield.Parent as Container).Add(new CatchModRelaxHelper(drawableRuleset.Playfield as CatchPlayfield));
+
+        private class CatchModRelaxHelper : Drawable, IKeyBindingHandler<CatchAction>, IRequireHighFrequencyMousePosition {
+            private CatcherArea.Catcher catcher;
+
+            public CatchModRelaxHelper(CatchPlayfield catchPlayfield) {
+                catcher = catchPlayfield.CatcherArea.MovableCatcher;
+                RelativeSizeAxes = Axes.Both;
+            }
+
+            //disable keyboard controls
+            public bool OnPressed(CatchAction action) => true;
+            public bool OnReleased(CatchAction action) => true;
+
+            protected override bool OnMouseMove(MouseMoveEvent e) {
+                //lock catcher to mouse position horizontally
+                catcher.X = e.MousePosition.X / DrawSize.X;
+
+                //make Yuzu face the direction he's moving
+                var direction = Math.Sign(e.Delta.X);
+                if (direction != 0)
+                    catcher.Scale = new Vector2(Math.Abs(catcher.Scale.X) * direction, catcher.Scale.Y);
+
+                return base.OnMouseMove(e);
+            }
+        }
     }
 }