allow players to invite eachother to channels

README.md

@@ -23,6 +23,8 @@ There is one chat command to manage everything.
 
 * Leave the current channel:       `/channel leave`
 
+* Invite player to you channel:    `/channel invite <playername>`
+
 Additionally, players with `basic_privs` priviledge can also use
 
 * Send message to all players:     `/channel wall <message ...>`

chatcommands.lua

@@ -23,6 +23,7 @@ minetest.register_chatcommand("channel", {
 			minetest.chat_send_player(name, "Online players: /channel online")
 			minetest.chat_send_player(name, "Join/switch:    /channel join <channel>")
 			minetest.chat_send_player(name, "Leave channel:  /channel leave")
+			minetest.chat_send_player(name, "Invite to channel:  /channel invite <playername>")
 			return
 
 		elseif param == "online" then
@@ -41,6 +42,10 @@ minetest.register_chatcommand("channel", {
 			channels.command_set(name, args[2])
 			return
 
+        elseif args[1] == "invite" and #args == 2 then
+            channels.command_invite(name, args[2])
+            return
+
 		elseif args[1] == "wall" and #args >= 2 then
 			channels.command_wall(name, tablejoin(args,2) )
 			return
@@ -64,6 +69,23 @@ function channels.say_chat(name, message, channel)
     end
 end
 
+function channels.command_invite(hoster,guest)
+    local channelname = channels.players[hoster]
+    if not channelname then
+        if channels.allow_global_channel then
+            channelname = "the global chat"
+        else
+            minetest.chat_send_player(hoster, "The global channel is not usable.")
+            return
+        end
+    else
+        channelname = "the '"..channelname.."' chat channel."
+    end
+
+    minetest.chat_send_player(guest, hoster.." invites you to join "..channelname)
+    minetest.chat_send_player(hoster, guest.." was invited to join "..channelname)
+end
+
 function channels.command_wall(name, message)
 	local playerprivs = minetest.get_player_privs(name)
 	if not playerprivs.basic_privs then