Lua Zombie event small changes..

[therrax]

Hi.
TFS 1.0
script:
http://otland.net/threads/zombie-event-beta-tfs-1-0-vers-0-5.213758/
I want to fix some bugs with zombie event script in talkactions..
Bugs:
1.One player can 15x use this command.. for example

When I use command !zombie
Therrax join to zombie [1/15]
again
!zombie
Therrax join to zombie [2/15]  and again to 15... :D 1 player can use it 15 times ...

2. Player can't use it when he is not in protection zone, and i want change it. [only in PZ]
script:

dofile('data/zombie_system.lua')
function onSay(cid, words, param)
    local player = Player(cid)
    if player:getGroup():getAccess() then
        player:sendTextMessage(MESSAGE_INFO_DESCR, "Game master can't join.")
        return false
    end
    if ze_started == started then
        player:sendTextMessage(MESSAGE_INFO_DESCR, "The Zombie Event has already started.")
        return false
    end
    if ze_started == true then
        if ze_joined_count < ze_max_players then
            if not player:isPzLocked() then
                player:teleportTo(ze_waiting_room_pos, false)
                ze_joined_count = ze_joined_count + 1
                broadcastMessage(""..player:getName().." has joined the Zombie Event! ["..ze_joined_count.."/"..ze_max_players.."].", MESSAGE_STATUS_WARNING)
                player:setStorageValue(ze_join_storage, 1)
            else
                player:sendCancelMessage("You can't join the zombie while you are in a fight!")
            end
        else
            player:sendTextMessage(MESSAGE_INFO_DESCR, "The Zombie Event is already full! ["..ze_joined_count.."/"..ze_max_players.."]")
        end
    else
        player:sendTextMessage(MESSAGE_INFO_DESCR, "The Zombie Event has not started yet.")
    end
    return false
end

 

[Limos]

To check if someone already joined the event

if player:getStorageValue(ze_join_storage) ~= 1 then
   -- teleport and stuff
else
   player:sendCancelMessage("You already joined the event!")
end

To check for pz

if Tile(player:getPosition()):hasFlag(TILESTATE_PROTECTIONZONE) then