Obfuscate your name on 4chan Userscript

// ==UserScript==
// @name         Obfuscate your name on 4chan
// @namespace    boards.4chan.org
// @version      1
// @description  Randomize the characters in your name on 4chan!
// @author       Huntereb
// @match        *boards.4chan.org/*
// ==/UserScript==

//Name(s) you want to obfuscate
var chanName = [
    "Huntereb",
    "RandomName",
    "PoopButt"
];
//0: lowercase, 1: uppercase, 2: mixed
var capital = 2;
//Should we "Demonize" your name?
var useZalgo = 1;
//Minimum & maximum amount of Zalgo characters to insert between letters
var zalgoMin = 2;
var zalgoMax = 5;
//Add a random trip behind your name?
var useTrip = 1;
//List of random trips
var trips = [
    "#1234567",
    "#tripcode",
    "#ayylmao"
];

//don't edit anything below here unless you know what you're doing

function randomNumber(num) {
    return Math.floor(Math.random() * num);
}

function randomLetter(letter) {
    var possibleU;
    var possibleL = "";
    switch(letter) {
        case 'A':
        case 'a':
            possibleU = "AÀÁÂÃÄÅĀĂĄǍǺẠẢẤẦẨẪẬẮẰẲẴẶ";
            possibleL = "aàáâãäåāăąǎǻạảấầẩẫậắằẳẵặ";
            break;
        case 'B':
        case 'b':
            possibleU = "Bßℬ";
            possibleL = "b";
            break;
        case 'C':
        case 'c':
            possibleU = "CÇĆĈĊČℭ";
            possibleL = "cçćĉċč¢";
            break;
        case 'D':
        case 'd':
            possibleU = "DĎĐ";
            possibleL = "dďđ";
            break;
        case 'E':
        case 'e':
            possibleU = "EÈÉÊËĒĔĖĘĚẸẺẼẾỀỂỄỆℰ";
            possibleL = "eèéêëēĕėęěẹẻẽếềểễệəℯ";
            break;
        case 'F':
        case 'f':
            possibleU = "Fℱ";
            possibleL = "fƒ";
            break;
        case 'G':
        case 'g':
            possibleU = "GĜĞĠĢ";
            possibleL = "gĝğġģ";
            break;
        case 'H':
        case 'h':
            possibleU = "HĤĦℋ";
            possibleL = "hĥħℎℌ";
            break;
        case 'I':
        case 'i':
            possibleU = "IÌÍÎÏĨĪĬĮİǏỈỊ";
            possibleL = "iìíîïĩīĭįıǐỉị";
            break;
        case 'J':
        case 'j':
            possibleU = "JĴℑ";
            possibleL = "jĵ";
            break;
        case 'K':
        case 'k':
            possibleU = "KĶ";
            possibleL = "kķĸ";
            break;
        case 'L':
        case 'l':
            possibleU = "LĹĻĽĿŁℒ";
            possibleL = "lĺļľŀłℓ";
            break;
        case 'M':
        case 'm':
            possibleU = "Mℳ";
            possibleL = "m";
            break;
        case 'N':
        case 'n':
            possibleU = "NÑŃŅŇ";
            possibleL = "nñńņňʼn";
            break;
        case 'O':
        case 'o':
            possibleU = "O0ÒÓÔÕÖŌŎŐƠǑỌỎỐỒỔỖỘỚỜỞỠỢ";
            possibleL = "oòóôõöōŏőơǒọỏốồổỗộớờởỡợℴ";
            break;
        case 'P':
        case 'p':
            possibleU = "P";
            possibleL = "p℘";
            break;
        case 'Q':
        case 'q':
            possibleU = "Q";
            possibleL = "q";
            break;
        case 'R':
        case 'r':
            possibleU = "RŔŖŘℛℜ";
            possibleL = "rŕŗř";
            break;
        case 'S':
        case 's':
            possibleU = "SŚŜŞŠ$";
            possibleL = "sśŝşš";
            break;
        case 'T':
        case 't':
            possibleU = "TŢŤŦ";
            possibleL = "tţťŧ";
            break;
        case 'U':
        case 'u':
            possibleU = "UÙÚÛÜŨŪŬŮŰŲƯǓǕǗǗǙǛỤỦỨỪỬỮỰ";
            possibleL = "uùúûüũūŭůűųưǔǖǘǚǜụủứừửữự";
            break;
        case 'V':
        case 'v':
            possibleU = "V";
            possibleL = "v";
            break;
        case 'W':
        case 'w':
            possibleU = "WШЩԜŴẀẂẄ";
            possibleL = "wшщѡŵẁẃẅ";
            break;
        case 'X':
        case 'x':
            possibleU = "X";
            possibleL = "x×";
            break;
        case 'Y':
        case 'y':
            possibleU = "YÝŸŶỲỴỶỸ¥";
            possibleL = "yýÿŷỳỵỷỹ";
            break;
        case 'Z':
        case 'z':
            possibleU = "ZŹŻŽ";
            possibleL = "zźżž";
            break;
        case ' ':
            return ' ';
        case '-':
        case '~':
            possibleU = "-~‐‑‒–—―−〜〰－";
            break;
        default:
            possibleU = "?";
            break;
    }
    var possible;
    switch(capital) {
        case 0:
            possible = possibleL;
            break;
        case 1:
            possible = possibleU;
            break;
        case 2:
            possible = possibleU += possibleL;
            break;
    }

    return possible.charAt(randomNumber(possible.length));
}

var zalgo = {
    chars: {
        0 : [ /* up */
            '\u030d', /*     ̍     */
            '\u030e', /*     ̎     */
            '\u0304', /*     ̄     */
            '\u0305', /*     ̅     */
            '\u033f', /*     ̿     */
            '\u0311', /*     ̑     */
            '\u0306', /*     ̆     */
            '\u0310', /*     ̐     */
            '\u0352', /*     ͒     */
            '\u0357', /*     ͗     */
            '\u0351', /*     ͑     */
            '\u0307', /*     ̇     */
            '\u0308', /*     ̈     */
            '\u030a', /*     ̊     */
            '\u0342', /*     ͂     */
            '\u0343', /*     ̓     */
            '\u0344', /*     ̈́     */
            '\u034a', /*     ͊     */
            '\u034b', /*     ͋     */
            '\u034c', /*     ͌     */
            '\u0303', /*     ̃     */
            '\u0302', /*     ̂     */
            '\u030c', /*     ̌     */
            '\u0350', /*     ͐     */
            '\u0300', /*     ̀     */
            '\u0301', /*     ́     */
            '\u030b', /*     ̋     */
            '\u030f', /*     ̏     */
            '\u0312', /*     ̒     */
            '\u0313', /*     ̓     */
            '\u0314', /*     ̔     */
            '\u033d', /*     ̽     */
            '\u0309', /*     ̉     */
            '\u0363', /*     ͣ     */
            '\u0364', /*     ͤ     */
            '\u0365', /*     ͥ     */
            '\u0366', /*     ͦ     */
            '\u0367', /*     ͧ     */
            '\u0368', /*     ͨ     */
            '\u0369', /*     ͩ     */
            '\u036a', /*     ͪ     */
            '\u036b', /*     ͫ     */
            '\u036c', /*     ͬ     */
            '\u036d', /*     ͭ     */
            '\u036e', /*     ͮ     */
            '\u036f', /*     ͯ     */
            '\u033e', /*     ̾     */
            '\u035b', /*     ͛     */
            '\u0346', /*     ͆     */
            '\u031a'  /*     ̚     */
        ],
        1 : [ /* down */
            '\u0316', /*     ̖     */
            '\u0317', /*     ̗     */
            '\u0318', /*     ̘     */
            '\u0319', /*     ̙     */
            '\u031c', /*     ̜     */
            '\u031d', /*     ̝     */
            '\u031e', /*     ̞     */
            '\u031f', /*     ̟     */
            '\u0320', /*     ̠     */
            '\u0324', /*     ̤     */
            '\u0325', /*     ̥     */
            '\u0326', /*     ̦     */
            '\u0329', /*     ̩     */
            '\u032a', /*     ̪     */
            '\u032b', /*     ̫     */
            '\u032c', /*     ̬     */
            '\u032d', /*     ̭     */
            '\u032e', /*     ̮     */
            '\u032f', /*     ̯     */
            '\u0330', /*     ̰     */
            '\u0331', /*     ̱     */
            '\u0332', /*     ̲     */
            '\u0333', /*     ̳     */
            '\u0339', /*     ̹     */
            '\u033a', /*     ̺     */
            '\u033b', /*     ̻     */
            '\u033c', /*     ̼     */
            '\u0345', /*     ͅ     */
            '\u0347', /*     ͇     */
            '\u0348', /*     ͈     */
            '\u0349', /*     ͉     */
            '\u034d', /*     ͍     */
            '\u034e', /*     ͎     */
            '\u0353', /*     ͓     */
            '\u0354', /*     ͔     */
            '\u0355', /*     ͕     */
            '\u0356', /*     ͖     */
            '\u0359', /*     ͙     */
            '\u035a', /*     ͚     */
            '\u0323'  /*     ̣     */
        ],
        2 : [ /* mid */
            '\u0315', /*     ̕     */
            '\u031b', /*     ̛     */
            '\u0340', /*     ̀     */
            '\u0341', /*     ́     */
            '\u0358', /*     ͘     */
            '\u0321', /*     ̡     */
            '\u0322', /*     ̢     */
            '\u0327', /*     ̧     */
            '\u0328', /*     ̨     */
            '\u0334', /*     ̴     */
            '\u0335', /*     ̵     */
            '\u0336', /*     ̶     */
            '\u034f', /*     ͏     */
            '\u035c', /*     ͜     */
            '\u035d', /*     ͝     */
            '\u035e', /*     ͞     */
            '\u035f', /*     ͟     */
            '\u0360', /*     ͠     */
            '\u0362', /*     ͢     */
            '\u0338', /*     ̸     */
            '\u0337', /*     ̷      */
            '\u0361', /*     ͡     */
        ]

    },
    random: function(len) {
        if (len == 1) return 0;
        return !!len ? Math.floor(Math.random() * len + 1) - 1 : Math.random();
    },
    generate: function(str) {
        var str_arr = str.split(''),
            output = str_arr.map(function(a) {
                if(a == " ") return a;
                for(var i = 0, l = zalgo.random(zalgoMax);
                    i<l;i++){
                    var rand = zalgo.random(zalgoMin);
                    a += zalgo.chars[rand][
                        zalgo.random(zalgo.chars[rand].length)
                    ];
                }
                return a;
            });
        return output.join('');
    }
};

var nbLength;

function start() {
    var nameBoxs = document.getElementsByName("name");
    if (nameBoxs.length != nbLength && nameBoxs.length !== 0) {
        var chanName2 = chanName[randomNumber(chanName.length)];
        var finalName = "";
        for (i = 0; i < chanName2.length; i++) {
            finalName += randomLetter(chanName2.charAt(i));
        }
        if (useZalgo == 1) finalName = zalgo.generate(finalName);
        if (useTrip == 1) finalName += trips[randomNumber(trips.length)];
        for(var i=0; i<nameBoxs.length; i++) nameBoxs[i].value = finalName;
    }
    nbLength = nameBoxs.length;
    setTimeout(start, 1000);
}

start();