[scripts][common-moonmage] De-duplicating code

Also adds case for when a telescope is closed, as on first-use.

common-moonmage.lic

@@ -84,7 +84,7 @@ module DRCMM
   end
 
   def center_telescope(target)
-    DRC.bput("center telescope on #{target}",
+    case DRC.bput("center telescope on #{target}",
              'Center what',
              'You put your eye',
              'open it to make any use of it',
@@ -93,7 +93,14 @@ module DRCMM
              "You would probably need a periscope to do that",
              'Your search for',
              'Your vision is too fuzzy',
+             "You'll need to open it to make any use of it",
              'You must have both hands free')
+    when 'The pain is too much', "That's a bit tough to do when you can't see the sky"
+      echo("Planet #{target} not visible. Are you indoors perhaps?")
+    when "You'll need to open it to make any use of it"
+      fput("open my telescope")
+      fput("center telescope on #{target}")
+    end
   end
 
   def align(skill)
@@ -300,10 +307,7 @@ module DRCMM
     observed_planets = []
 
     planets.each do |planet|
-      case DRC.bput("center telescope on #{planet}", 'You put your eye', 'The pain is too much', "That's a bit tough to do when you can't see the sky")
-      when 'The pain is too much', "That's a bit tough to do when you can't see the sky"
-        break
-      end
+      center_telescope(planet)
       observed_planets << planet unless Flags['planet-not-visible']
       Flags.reset('planet-not-visible')
     end