MinerGunBuilder Alliance Code generator

minergun.js

// Change your invite code, and run this as many times as you want.

var ic = "e0f135ef961d6d82d35346b9a578d028e6bbee3cc02f020b5d8a8421483597b8";
x = generateCode(ic);
console.log(x);

function getEven(f) {
  var e = [ 8,12,15,2,14,3,5,1,7,13,11,9,10,4,6,0];
  return e[parseInt(f,16)];
}
function getOdd(f) {
  var o = [ 15,7,3,5,13,6,14,8,0,11,12,10,1,9,4,2];
  return o[parseInt(f,16)];
}

function getRand() {
  var rand = "";
  // return "a06930b8c3e997d305ab984acd978248";
  for (var i = 0; i < 32; i++) {
    var f = Math.floor(Math.random() * 16).toString(16);
    rand += f;
  }
  return rand;
}

function generateCode(invitationCode) {
  var m = [ 1,6,0,7,"e",8,"f","d","b",5,2,"c",3,"a",9,4];
  let base = invitationCode.split("").map(function (a) { return m[parseInt(a,16)]; }).join("");
  var rand = getRand();
  var r = rand.split("").reverse();
  for (var i = 0; i < 32; i++) {
    var f = r[i];
    if (i % 2 == 1) {
      rand += getEven(f).toString(16);
    } else {
      rand += getOdd(f).toString(16);
    }
  }
  var code = "";
  for (var i = 0; i < 64; i++) {
    code += base[i] + rand[i];
  }
  return code;
}