Ran rubocop autocorrect

lib/common_methods.rb

@@ -1,20 +1,38 @@
 # frozen_string_literal: true
+
 class IMICFPS
   def self.assets_path
-    File.expand_path("./../../assets", __FILE__)
+    File.expand_path("../assets", __dir__)
   end
 
   module CommonMethods
+    def window
+      $window
+    end
 
-    def window; $window; end
+    def delta_time
+      (Gosu.milliseconds - window.delta_time) / 1000.0
+    end
 
-    def delta_time; (Gosu.milliseconds - window.delta_time) / 1000.0; end
-    def button_down?(id); window.button_down?(id); end
+    def button_down?(id)
+      window.button_down?(id)
+    end
 
-    def mouse_x; window.mouse_x; end
-    def mouse_y; window.mouse_y; end
-    def mouse_x=(int); window.mouse_x = int; end
-    def mouse_y=(int); window.mouse_y = int; end
+    def mouse_x
+      window.mouse_x
+    end
+
+    def mouse_y
+      window.mouse_y
+    end
+
+    def mouse_x=(int)
+      window.mouse_x = int
+    end
+
+    def mouse_y=(int)
+      window.mouse_y = int
+    end
 
     def gl(&block)
       window.gl do
@@ -25,32 +43,43 @@ class IMICFPS
     def formatted_number(number)
       string = number.to_s.reverse.scan(/\d{1,3}/).join(",").reverse
 
-      string.insert(0, "-") if number < 0
+      string.insert(0, "-") if number.negative?
 
-      return string
+      string
     end
 
-    def control_down?; button_down?(Gosu::KbLeftControl) || button_down?(Gosu::KbRightControl); end
-    def shift_down?; button_down?(Gosu::KbLeftShift) || button_down?(Gosu::KbRightShift); end
-    def alt_down?; button_down?(Gosu::KbLeftAlt) || button_down?(Gosu::KbRightAlt); end
+    def control_down?
+      button_down?(Gosu::KbLeftControl) || button_down?(Gosu::KbRightControl)
+    end
+
+    def shift_down?
+      button_down?(Gosu::KbLeftShift) || button_down?(Gosu::KbRightShift)
+    end
+
+    def alt_down?
+      button_down?(Gosu::KbLeftAlt) || button_down?(Gosu::KbRightAlt)
+    end
 
     def draw_rect(*args)
       window.draw_rect(*args)
     end
+
     def draw_quad(*args)
       window.draw_quad(*args)
     end
+
     def fill(color = Gosu::Color::WHITE, z = 0)
       draw_rect(0, 0, window.width, window.height, color, z)
     end
+
     def fill_quad(x1, y1, x2, y2, x3, y3, x4, y4, color = Gosu::Color::WHITE, z = 0, mode = :default)
       draw_quad(
-        x1,y1, color,
-        x2,y2, color,
-        x3,y3, color,
-        x4,y4, color,
+        x1, y1, color,
+        x2, y2, color,
+        x3, y3, color,
+        x4, y4, color,
         z, mode
-        )
+      )
     end
 
     def menu_background(primary_color, accent_color, color_step, transparency, bar_size, slope)