warn afk players 10 sec ahead

leaderboard.lua

@@ -40,6 +40,7 @@ local clearcheats = false
 local START_TIME = 6 * TICRATE + (3 * TICRATE / 4) + 1
 local AFK_TIMEOUT = TICRATE * 5
 local AFK_BALANCE = TICRATE * 60
+local AFK_BALANCE_WARN = AFK_BALANCE - TICRATE * 10
 local PREVENT_JOIN_TIME = START_TIME + TICRATE * 5
 
 local GUI_OFF    = 0x0
@@ -1108,6 +1109,12 @@ local function think()
 					if p.cmd.buttons then
 						p.afkTime = leveltime
 					end
+
+					--Away from kart
+					if p.afkTime + AFK_BALANCE_WARN == leveltime then
+						chatprintf(p, "[AFK] \x89You will be moved to spectator in 10 seconds!", false)
+						S_StartSound(nil, 26, p)
+					end
 					if p.afkTime + AFK_BALANCE < leveltime then
 						p.spectator = true
 						chatprint("\x89" + p.name + " was moved to the other team for game balance", true)