From 82a80bc043721da324881c997f0420786ae00280 Mon Sep 17 00:00:00 2001
From: degwinthegreat <the.colledge.dropout@gmail.com>
Date: Fri, 14 May 2021 20:48:37 +0900
Subject: [PATCH] =?UTF-8?q?if=E3=82=92case=E3=81=AB=E5=A4=89=E3=81=88?=
 =?UTF-8?q?=E3=81=A6=E9=AD=94=E6=B3=95=E3=81=AE=E3=82=88=E3=81=86=E3=81=A0?=
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---
 ruby/gilded_rose.rb | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/ruby/gilded_rose.rb b/ruby/gilded_rose.rb
index 97acd939..6b7f619c 100644
--- a/ruby/gilded_rose.rb
+++ b/ruby/gilded_rose.rb
@@ -20,13 +20,12 @@ class GildedRose
     when AGED_BRIE
       increment_item_quality(item)
     when BACKSTAGE_PASS
-      if item.sell_in >= 11
-        increment_item_quality(item)
-      elsif (6...11).cover?(item.sell_in)
-        increment_item_quality(item, 2)
-      elsif item.sell_in < 6
-        increment_item_quality(item, 3)
+      increment_amount = case item.sell_in
+      when (11..) then 1
+      when (6...11) then 2
+      when (...6) then 3
       end
+      increment_item_quality(item, increment_amount)
     else
       if item.quality > 0
         item.quality = item.quality - 1