From d5b436d91b8347a4afacb45d43762a8120886f29 Mon Sep 17 00:00:00 2001
From: "ANDY840119-PC\\andy840119" <andy840119@gmail.com>
Date: Mon, 8 Jan 2018 23:11:20 +0900
Subject: [PATCH] use public List<Column> Columns =>
 listColumnStages.SelectMany(x => x.Columns).ToList(); instead

---
 osu.Game.Rulesets.Mania/UI/ManiaPlayfield.cs | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/osu.Game.Rulesets.Mania/UI/ManiaPlayfield.cs b/osu.Game.Rulesets.Mania/UI/ManiaPlayfield.cs
index 3775104a06..292b301e29 100644
--- a/osu.Game.Rulesets.Mania/UI/ManiaPlayfield.cs
+++ b/osu.Game.Rulesets.Mania/UI/ManiaPlayfield.cs
@@ -44,18 +44,7 @@ namespace osu.Game.Rulesets.Mania.UI
             }
         }
 
-        public List<Column> Columns
-        {
-            get
-            {
-                var list = new List<Column>();
-                foreach (var stage in listColumnStages)
-                {
-                    list.AddRange(stage.Columns);
-                }
-                return list;
-            }
-        }
+        public List<Column> Columns => listColumnStages.SelectMany(x => x.Columns).ToList();
 
         public ManiaPlayfield(List<StageDefinition> stages)
             : base(Axes.Y)