From 162237dc46cf28225a2caa1075d97eefcac5af8c Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Mon, 11 Jun 2018 15:43:15 +0900
Subject: [PATCH] Fix bar lines being offset

---
 .../TestCaseStage.cs                          | 64 ++++++++++++++++++-
 osu.Game.Rulesets.Mania/UI/ManiaStage.cs      | 18 ++++--
 2 files changed, 75 insertions(+), 7 deletions(-)

diff --git a/osu.Game.Rulesets.Mania.Tests/TestCaseStage.cs b/osu.Game.Rulesets.Mania.Tests/TestCaseStage.cs
index d88896d855..0f90c1f16b 100644
--- a/osu.Game.Rulesets.Mania.Tests/TestCaseStage.cs
+++ b/osu.Game.Rulesets.Mania.Tests/TestCaseStage.cs
@@ -1,11 +1,16 @@
 // Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
+using System.Collections.Generic;
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
 using osu.Game.Rulesets.Mania.Beatmaps;
+using osu.Game.Rulesets.Mania.Objects;
+using osu.Game.Rulesets.Mania.Objects.Drawables;
 using osu.Game.Rulesets.Mania.UI;
 using osu.Game.Rulesets.UI.Scrolling;
 using OpenTK;
@@ -15,8 +20,12 @@ namespace osu.Game.Rulesets.Mania.Tests
     [TestFixture]
     public class TestCaseStage : ManiaInputTestCase
     {
+        private const int columns = 4;
+
+        private readonly List<ManiaStage> stages = new List<ManiaStage>();
+
         public TestCaseStage()
-            : base(4)
+            : base(columns)
         {
         }
 
@@ -37,17 +46,68 @@ namespace osu.Game.Rulesets.Mania.Tests
             };
         }
 
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            AddStep("note", createNote);
+            AddStep("hold note", createHoldNote);
+            AddStep("bar line", createBarLine);
+        }
+
+        private void createNote()
+        {
+            foreach (var stage in stages)
+            {
+                for (int i = 0; i < stage.Columns.Count; i++)
+                {
+                    var obj = new Note { Column = i, StartTime = Time.Current + 2000 };
+                    obj.ApplyDefaults(new ControlPointInfo(), new BeatmapDifficulty());
+
+                    stage.Add(new DrawableNote(obj, stage.Columns[i].Action));
+                }
+            }
+        }
+
+        private void createHoldNote()
+        {
+            foreach (var stage in stages)
+            {
+                for (int i = 0; i < stage.Columns.Count; i++)
+                {
+                    var obj = new HoldNote { Column = i, StartTime = Time.Current + 2000, Duration = 500 };
+                    obj.ApplyDefaults(new ControlPointInfo(), new BeatmapDifficulty());
+
+                    stage.Add(new DrawableHoldNote(obj, stage.Columns[i].Action));
+                }
+            }
+        }
+
+        private void createBarLine()
+        {
+            foreach (var stage in stages)
+            {
+                var obj = new BarLine { StartTime = Time.Current + 2000, ControlPoint = new TimingControlPoint() };
+                obj.ApplyDefaults(new ControlPointInfo(), new BeatmapDifficulty());
+
+                stage.Add(obj);
+            }
+        }
+
         private Drawable createStage(ScrollingDirection direction, ManiaAction action)
         {
             var specialAction = ManiaAction.Special1;
 
+            var stage = new ManiaStage(direction, 0, new StageDefinition { Columns = 2 }, ref action, ref specialAction);
+            stages.Add(stage);
+
             return new ScrollingTestContainer(direction)
             {
                 Anchor = Anchor.Centre,
                 Origin = Anchor.Centre,
                 RelativeSizeAxes = Axes.Y,
                 AutoSizeAxes = Axes.X,
-                Child = new ManiaStage(direction, 0, new StageDefinition { Columns = 2 }, ref action, ref specialAction)
+                Child = stage
             };
         }
     }
diff --git a/osu.Game.Rulesets.Mania/UI/ManiaStage.cs b/osu.Game.Rulesets.Mania/UI/ManiaStage.cs
index 3ff14ed0c6..7b68582944 100644
--- a/osu.Game.Rulesets.Mania/UI/ManiaStage.cs
+++ b/osu.Game.Rulesets.Mania/UI/ManiaStage.cs
@@ -30,8 +30,8 @@ namespace osu.Game.Rulesets.Mania.UI
         public IReadOnlyList<Column> Columns => columnFlow.Children;
         private readonly FillFlowContainer<Column> columnFlow;
 
-        protected override Container<Drawable> Content => content;
-        private readonly Container<Drawable> content;
+        protected override Container<Drawable> Content => barLineContainer;
+        private readonly Container<Drawable> barLineContainer;
 
         public Container<DrawableManiaJudgement> Judgements => judgements;
         private readonly JudgementContainer<DrawableManiaJudgement> judgements;
@@ -100,13 +100,12 @@ namespace osu.Game.Rulesets.Mania.UI
                             Width = 1366, // Bar lines should only be masked on the vertical axis
                             BypassAutoSizeAxes = Axes.Both,
                             Masking = true,
-                            Child = content = new Container
+                            Child = barLineContainer = new Container
                             {
                                 Name = "Bar lines",
                                 Anchor = Anchor.TopCentre,
                                 Origin = Anchor.TopCentre,
                                 RelativeSizeAxes = Axes.Y,
-                                Padding = new MarginPadding { Top = HIT_TARGET_POSITION }
                             }
                         },
                         judgements = new JudgementContainer<DrawableManiaJudgement>
@@ -133,6 +132,15 @@ namespace osu.Game.Rulesets.Mania.UI
 
                 AddColumn(column);
             }
+
+            Direction.BindValueChanged(d =>
+            {
+                barLineContainer.Padding = new MarginPadding
+                {
+                    Top = d == ScrollingDirection.Up ? HIT_TARGET_POSITION : 0,
+                    Bottom = d == ScrollingDirection.Down ? HIT_TARGET_POSITION : 0,
+                };
+            }, true);
         }
 
         public void AddColumn(Column c)
@@ -203,7 +211,7 @@ namespace osu.Game.Rulesets.Mania.UI
         {
             // Due to masking differences, it is not possible to get the width of the columns container automatically
             // While masking on effectively only the Y-axis, so we need to set the width of the bar line container manually
-            content.Width = columnFlow.Width;
+            barLineContainer.Width = columnFlow.Width;
         }
     }
 }