chance = 65
chwin = 77
chlose = {12.44,14.3,6.22,7.15,3.11,3.575,1.555,1.7875,0.7775,0.89375}
chindex = 1
use_first_index = false
multi = 1.2
bethigh = true
div = 50000
bb = balance / div
nextbet = bb
target = balance + 1000

function dobet()
    if balance >= target then stop() end

    if win then
        chance = chwin
        bethigh = not bethigh
        nextbet = bb
    else
        chindex = math.random(1, #chlose)
        chance = chlose[chindex]
        nextbet = previousbet * multi
    end

    if chance < chlose[1] and use_first_index then
        chance = chlose[1]
    end
end