Sounds implemented

README.md

@@ -21,3 +21,6 @@ Feel free to:
 * open an [issue](https://gitlab.com/zughy-friends-minetest/arena_lib/-/issues)
 * submit a merge request. In this case, PLEASE, do follow milestones and my [coding guidelines](https://cryptpad.fr/pad/#/2/pad/view/-l75iHl3x54py20u2Y5OSAX4iruQBdeQXcO7PGTtGew/embed/). I won't merge features for milestones that are different from the upcoming one (if it's declared), nor messy code
 * contact me on the [Minetest Forum](https://forum.minetest.net/memberlist.php?mode=viewprofile&u=26472)
+
+### Credits
+Sounds by [suntemple](https://freesound.org/people/suntemple/) and [Heshl](https://freesound.org/people/Heshl/sounds/269153/)

api.lua

@@ -43,8 +43,7 @@ function parties.invite(sender, p_name)
     if not callback(sender, p_name) then return end
   end
 
-  -- TODO: riproduzione suono invito
-
+  minetest.sound_play("parties_invite", { to_player = p_name })
   minetest.chat_send_player(sender, format_party_message(S("Invite to @1 successfully sent", p_name)))
   minetest.chat_send_player(p_name, format_party_message(S("@1 has invitied you in a party, would you like to join? (/party join)", sender)))
   players_invited[p_name] = sender
@@ -87,11 +86,17 @@ function parties.join(p_name)
     if not callback(party_leader, p_name) then return end
   end
 
+  -- se non esisteva un gruppo, lo creo
   if players_in_parties[party_leader] == nil then
     current_parties[party_leader] = {party_leader}
     players_in_parties[party_leader] = party_leader
   end
 
+  -- riproduzione suono
+  for _, pl_name in pairs(current_parties[party_leader]) do
+    minetest.sound_play("parties_join", { to_player = pl_name })
+  end
+
   parties.chat_send_party(party_leader, S("@1 has joined the party", p_name), true)
 
   players_invited[p_name] = nil
@@ -116,10 +121,13 @@ function parties.leave(p_name)
     minetest.chat_send_player(p_name, minetest.colorize("#e6482e", S("[!] You must enter a party first!")))
     return end
 
-  -- se si aveva invitato qualcuno
-
   local party_leader = players_in_parties[p_name]
 
+  -- riproduzione suono
+  for _, pl_name in pairs(current_parties[party_leader]) do
+    minetest.sound_play("parties_leave", { to_player = pl_name })
+  end
+
   -- rimuovo dal gruppo
   for k, pl_name in pairs(current_parties[party_leader]) do
     if pl_name == p_name then
@@ -173,6 +181,11 @@ function parties.disband(p_name)
     minetest.chat_send_player(p_name, minetest.colorize("#e6482e", S("[!] Only the party leader can perform this action!")))
     return end
 
+  -- riproduzione suono
+  for _, pl_name in pairs(current_parties[p_name]) do
+    minetest.sound_play("parties_leave", { p_name = pl_name })
+  end
+
   parties.chat_send_party(p_name, S("The party has been disbanded"), true)
 
   -- eventuali callback