Bugfix: it was possible to enter the editor even when a match was taking place

DOCS.md

@@ -163,13 +163,14 @@ ChatCmdBuilder.new("NAMEOFYOURCOMMAND", function(cmd)
 #### 1.2.3 Enabling an arena
 When a sign has been set, it won't work. This because an arena must be enabled manually via  
 `arena_lib.enable_arena(sender, mod, arena_name)` or by using the Enable and Leave button in the editor.
-If all the conditions are met, you'll receive a confirmation. If not, you'll receive the reason why it didn't through and the arena will remain disabled. Conditions are:
+If all the conditions are met, it'll return `true` and you'll receive a confirmation. If not, you'll receive the reason why it didn't through and the arena will remain disabled. Conditions are:
 * all spawn points set
 * sign placed
+* potential custom checks through `arena_lib.on_enable` callback
   
 Arenas can be disabled too, via  
 `arena_lib.disable_arena(sender, mod, arena_name)` (or by entering the editor, as previously said).  
-In order to do that, no game must be taking place in that specific arena.
+In order to do that, no game must be taking place in that specific arena. If successful, it'll return `true` and any potential player in queue will be removed. It acts like `enable_arena` (with `arena_lib.on_disable` as callback)
 
 ### 1.3 Arena phases
 An arena comes in 4 phases, each one of them linked to a specific function:

_editor/editor_main.lua

@@ -71,9 +71,9 @@ function arena_lib.enter_editor(sender, mod, arena_name)
     minetest.chat_send_player(sender, minetest.colorize("#e6482e", S("[!] There must be no one inside the editor of the arena to perform this command! (now inside: @1)", arenas_in_edit_mode[arena_name])))
     return end
 
-  -- se l'arena è abilitata, la disabilito
+  -- se l'arena è abilitata, provo a disabilitiarla
   if arena.enabled then
-    arena_lib.disable_arena(sender, mod, arena_name)
+    if not arena_lib.disable_arena(sender, mod, arena_name) then return end
   end
 
   local player = minetest.get_player_by_name(sender)

api.lua

@@ -890,8 +890,9 @@ function arena_lib.enable_arena(sender, mod, arena_name, in_editor)
   arena.enabled = true
   arena_lib.update_sign(arena)
   update_storage(false, mod, arena_ID, arena)
-  minetest.chat_send_player(sender, mod_ref.prefix .. S("Arena @1 successfully enabled", arena_name))
 
+  minetest.chat_send_player(sender, mod_ref.prefix .. S("Arena @1 successfully enabled", arena_name))
+  return true
 end
 
 
@@ -943,7 +944,9 @@ function arena_lib.disable_arena(sender, mod, arena_name)
   arena.enabled = false
   arena_lib.update_sign(arena)
   update_storage(false, mod, arena_ID, arena)
+
   minetest.chat_send_player(sender, mod_ref.prefix .. S("Arena @1 successfully disabled", arena_name))
+  return true
 end