From 5d6a438f98b1614352374af2910dd2320e040b30 Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Mon, 26 Nov 2018 11:34:25 +0900
Subject: [PATCH] Make selected mania hitobjects always alive

---
 .../Edit/Blueprints/ManiaSelectionBlueprint.cs    | 15 +++++++++++++++
 .../Objects/Drawables/DrawableManiaHitObject.cs   |  7 +++++++
 2 files changed, 22 insertions(+)

diff --git a/osu.Game.Rulesets.Mania/Edit/Blueprints/ManiaSelectionBlueprint.cs b/osu.Game.Rulesets.Mania/Edit/Blueprints/ManiaSelectionBlueprint.cs
index 2b2f30125a..97817d5414 100644
--- a/osu.Game.Rulesets.Mania/Edit/Blueprints/ManiaSelectionBlueprint.cs
+++ b/osu.Game.Rulesets.Mania/Edit/Blueprints/ManiaSelectionBlueprint.cs
@@ -6,6 +6,7 @@ using osu.Framework.Graphics;
 using osu.Framework.Input.Events;
 using osu.Framework.Timing;
 using osu.Game.Rulesets.Edit;
+using osu.Game.Rulesets.Mania.Objects.Drawables;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.UI.Scrolling;
 using osuTK;
@@ -14,6 +15,8 @@ namespace osu.Game.Rulesets.Mania.Edit.Blueprints
 {
     public class ManiaSelectionBlueprint : SelectionBlueprint
     {
+        protected new DrawableManiaHitObject HitObject => (DrawableManiaHitObject)base.HitObject;
+
         protected IClock EditorClock { get; private set; }
 
         [Resolved]
@@ -60,5 +63,17 @@ namespace osu.Game.Rulesets.Mania.Edit.Blueprints
                 scrollingInfo.TimeRange.Value,
                 objectParent.DrawHeight);
         }
+
+        public override void Show()
+        {
+            HitObject.AlwaysAlive = true;
+            base.Show();
+        }
+
+        public override void Hide()
+        {
+            HitObject.AlwaysAlive = false;
+            base.Hide();
+        }
     }
 }
diff --git a/osu.Game.Rulesets.Mania/Objects/Drawables/DrawableManiaHitObject.cs b/osu.Game.Rulesets.Mania/Objects/Drawables/DrawableManiaHitObject.cs
index 8c96c6dfe7..70ff7b4124 100644
--- a/osu.Game.Rulesets.Mania/Objects/Drawables/DrawableManiaHitObject.cs
+++ b/osu.Game.Rulesets.Mania/Objects/Drawables/DrawableManiaHitObject.cs
@@ -12,6 +12,11 @@ namespace osu.Game.Rulesets.Mania.Objects.Drawables
 {
     public abstract class DrawableManiaHitObject : DrawableHitObject<ManiaHitObject>
     {
+        /// <summary>
+        /// Whether this <see cref="DrawableManiaHitObject"/> should always remain alive.
+        /// </summary>
+        internal bool AlwaysAlive;
+
         /// <summary>
         /// The <see cref="ManiaAction"/> which causes this <see cref="DrawableManiaHitObject{TObject}"/> to be hit.
         /// </summary>
@@ -34,6 +39,8 @@ namespace osu.Game.Rulesets.Mania.Objects.Drawables
             Direction.BindValueChanged(OnDirectionChanged, true);
         }
 
+        protected override bool ShouldBeAlive => AlwaysAlive || base.ShouldBeAlive;
+
         protected virtual void OnDirectionChanged(ScrollingDirection direction)
         {
             Anchor = Origin = direction == ScrollingDirection.Up ? Anchor.TopCentre : Anchor.BottomCentre;