Lua Immobilize Monster

[Black123]

Could somebody give me some tips how to add to this script that monster isn't moving? Only when he see player with set storage?

local monster = 'Wolf' -- name
local stor = 8000 -- storage
function onCombat(cid, target)
    if (isPlayer(cid)) then
        if (isMonster(target) and (getCreatureName(target) == monster and (getPlayerStorageValue(cid, stor) ~= 2))) then
        return false 
        end
    elseif (isMonster(cid)) then
        if (isPlayer(target) and (getPlayerStorageValue(target, stor) ~= 2) and doCreatureSetNoMove(cid, false)) then
       
        return false
        end
    end

    return true
end
function onKill(cid, target)
    if isMonster(target) and getCreatureName(target) == monster and getPlayerStorageValue(cid, stor) == 2 then
        setPlayerStorageValue(cid, stor, 3)
    end
    return true
end

 

[Black123]

@BUMP? it can be in cpp