local config = {
    rewards = {[2195] = 1, [2472] = 1, [2493] = 1}
}

function onTime(interval)
    if Game.getPlayerCount() == 0 then
        return true
    end

    local players = Game.getPlayers()
    local winner  = players[math.random(1, #players)]

    local items = {}
    for itemid, count in pairs(config.rewards) do
        items[#items + 1] = itemid
    end

    local itemid = items[math.random(1, #items)]
    local amount = config.rewards[itemid]
    winner:addItem(itemid, amount)

    local it   = ItemType(itemid)
    local name = ""
    if amount == 1 then
        name = it:getArticle() .. " " .. it:getName()
    else
        name = amount .. " " .. it:getPluralName()
    end

    Game.broadcastMessage("" .. winner:getName() .. " won " .. name .. "! Congratulations.", MESSAGE_STATUS_WARNING)
    return true
end