TFS 1.X+ Checking Client Type

[Extrodus]

Sources: TFS 1.5 - 8.6 Downgrade
Client: OTCv8

When using the code below both OTC and Default Tibia Clients get the message when it should only be sending to the Tibia Clients.

print("Client: "..player:getClient().os)
OTCv8 returns - Client: 2
Tibia client returns - Client: 2

--[[
    available clients to whitelist:
    CLIENTOS_LINUX
    CLIENTOS_WINDOWS
    CLIENTOS_FLASH
    CLIENTOS_OTCLIENT_LINUX
    CLIENTOS_OTCLIENT_WINDOWS
    CLIENTOS_OTCLIENT_MAC
]]

-- config
local whitelist = {CLIENTOS_OTCLIENT_WINDOWS, CLIENTOS_OTCLIENT_LINUX, CLIENTOS_OTCLIENT_MAC}
local msg = "This game client is not supported on the server."
-- end config


-- do not touch
local tibiaClient = {CLIENTOS_WINDOWS, CLIENTOS_LINUX}

function onLogin(player)
    player:registerEvent("clientControl")
    return true
end

function onThink(player, interval)
    local clientType = player:getClient().os
    if not isInArray(whitelist, clientType) then
        if isInArray(tibiaClient, clientType) then
            -- tibia client
            player:sendTextMessage(MESSAGE_EVENT_ADVANCE, msg)
        else
            -- ot client (set xp bonus)
        end
    end
    return true
end

Checked sources and we have:

enum OperatingSystem_t : uint8_t {
    CLIENTOS_NONE = 0,

    CLIENTOS_LINUX = 1,
    CLIENTOS_WINDOWS = 2,
    CLIENTOS_FLASH = 3,

    CLIENTOS_OTCLIENT_LINUX = 10,
    CLIENTOS_OTCLIENT_WINDOWS = 11,
    CLIENTOS_OTCLIENT_MAC = 12,
};

Also in core/player.lua

function Player.isUsingOtClient(self)
    return self:getClient().os >= CLIENTOS_OTCLIENT_LINUX
end

Tried modifying the script for this and I still get messages on both OTC and Default Client which makes sense since both

function onThink(player, interval)
        if player:getClient().os == CLIENTOS_WINDOWS then
            -- tibia client
            player:sendTextMessage(MESSAGE_EVENT_ADVANCE, msg)
        else
            -- ot client
        end
    return true
end

Solution: In OTCv8 go to /modules/gamefeatures/gamefeatures.lua and change:

---g_game.enableFeature(GameExtendedOpcode)

to

g_game.enableFeature(GameExtendedOpcode)

Client will start to print "20"