When the player first logs before registering, he is given the effect of blindness and with the help of the title he is shown as many random English literal and numbers as indicated in captcha-length and the color indicated in captcha-color.
If the player does not enter captcha in 20 seconds or enters it incorrectly, he is kicked, and if he reboots and fails captcha more times than specified in tries, he is banned by ip for 10 minutes (if 0 is specified, it is not banned)
Also, if the player enters not for the first time, then if check-old-players: false then it no longer checks, and also with check-ops, if true, then it checks the operators
After passing the captcha, the player can be moved to the world specified in the world-after-captcha, if the parameter is not in front ( there is a #) then the player remains in the world where the captcha passed