Merge pull request #190 from grilledham/popup-fix

Popup fix

custom_commands.lua

@@ -569,7 +569,8 @@ if not _DEBUG then
                 local success, error = pcall(func, cmd)
                 if not success then
                     log(error)
-                    player_print(error)
+                    --player_print(error) -- This casues desyncs
+                    player_print('Sorry there was an error running '.. cmd.name)
                 end
             end
         )

popup.lua

@@ -71,7 +71,13 @@ local function popup(cmd)
         return
     end
 
-    local message = cmd.parameter:gsub('\\n', '\n')
+    local message = cmd.parameter
+    if not message then
+        player_print('Usage: /popup <message>')
+        return
+    end
+
+    message = message:gsub('\\n', '\n')
 
     for _, p in ipairs(game.connected_players) do
         show_popup(p, message)