From f68a8383af4824a3ae514fd9f7aa74f6eb6890b6 Mon Sep 17 00:00:00 2001
From: Cyberarm <matthewlikesrobots@gmail.com>
Date: Sun, 23 Jun 2019 14:54:30 -0500
Subject: [PATCH] Monkeypatch Gosu::Color to add <=> to support color ranges in
 Background

---
 lib/cyberarm_engine/background.rb | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/lib/cyberarm_engine/background.rb b/lib/cyberarm_engine/background.rb
index bbddc50..b15c6c1 100644
--- a/lib/cyberarm_engine/background.rb
+++ b/lib/cyberarm_engine/background.rb
@@ -158,9 +158,20 @@ module CyberarmEngine
         @top_right    = background[:top_right]
         @bottom_left  = background[:bottom_left]
         @bottom_right = background[:bottom_right]
+      elsif background.is_a?(Range)
+        set([background.begin, background.begin, background.end, background.end])
       else
         raise ArgumentError, "background '#{background}' of type '#{background.class}' was not able to be processed"
       end
     end
   end
-end
\ No newline at end of file
+end
+
+# Add <=> method to support Range based gradients
+module Gosu
+ class Color
+   def <=>(other)
+     self
+   end
+ end
+end