WodaN

local rocket = 75973
local rocket1 = 75957
local rocket2 = 75972
local riding3 = 34090
local riding4 = 34091
local coldweatherfly = 54197

function rocket_cast(event, player, spellid)
    if(spellid == rocket) then
        RegisterTimedEvent("rocket_check", 1600, 1, event, player)
    end
end

RegisterServerHook(10, "rocket_cast")

function rocket_check(event, player)
    if (player:HasAura(rocket) == true) then
        player:RemoveAura(rocket)
        if (player:HasSpell(riding4) == false) then
            if (player:HasSpell(riding3) == false) then
            else
                if player:GetMapId() == 530 then
                    player:FullCastSpell(rocket1)
                elseif player:GetMapId() == 571 then
                    if (player:HasSpell(coldweatherfly) == true) then
                        player:FullCastSpell(rocket1)
                    end
                end
            end
        else
            if player:GetMapId() == 530 then
                player:FullCastSpell(rocket2)
            elseif player:GetMapId() == 571 then
                if (player:HasSpell(coldweatherfly) == true) then
                    player:FullCastSpell(rocket2)
                end
            end
        end
    end
end