Adicionar cooldown em spell

function onCastSpell(cid, words, param)
 
if exhaustion.check(cid, 23006) == false then
exhaustion.set(cid, 23006, 10)
else
doPlayerSendCancel(cid, "Cooldown[" ..exhaustion.get(cid, 23006).."]")
return false
end
 
pos = getCreaturePosition(cid)
 
function effectFollow(uid,jump,pos)
if jump <= 0 then
return true
end
posx = getPosByDir(pos,getDirectionTo(pos,getCreaturePosition(getCreatureTarget(cid))))
 
doAreaCombatHealth(cid, 1, posx, 0, -3000, -3500, 79)
addEvent(effectFollow, 500, uid, jump-1, pos)
end
effectFollow(getCreatureTarget(cid),15,pos)
end