Generate lotto numbers with minimal overlap
// ==UserScript==
// @name GC - Lottomatic
// @version 0.1.1
// @description Generate lotto numbers with minimal overlap
// @author wibreth
// @namespace neopets
// @match https://www.grundos.cafe/games/lottery/*
// @grant GM_setValue
// @grant GM_getValue
// ==/UserScript==
// based on https://www.andrew.cmu.edu/user/kmliu/neopets/lottery.html with permission
(function() {
'use strict';
/* globals $:false */
var numbers = GM_getValue("numbers", "");
function shuffle(o)
{
for(var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
};
function leaf(a,b)
{
var res = new Array();
for(var i=0; i<a.length; i++)
{
res[i*2] = a[i];
res[i*2+1] = b[i];
}
return res;
};
function generate() {
var arr = new Array();
for(var i=0; i<30; i++)
arr[i] = i+1;
var arr1 = shuffle(arr);
var arr2 = leaf( arr1.slice(0,15), arr1.slice(15,30) )
var arr3 = leaf( arr2.slice(0,15), arr2.slice(15,30) )
var arr4 = leaf( arr3.slice(0,15), arr3.slice(15,30) )
var marr = arr1.concat(arr2,arr3,arr4);
numbers = new Array();
for(i=0; i<20; i++)
numbers[i] = [marr[6*i], marr[6*i+1], marr[6*i+2], marr[6*i+3], marr[6*i+4], marr[6*i+5]];
GM_setValue('numbers', numbers);
populate();
};
function refresh() {
$('.tickets').remove();
numbers = [];
generate();
};
function populate() {
var radiodiv = $('<div class="tickets" style="font-size: 0.8em">');
numbers.forEach((ticket, idx) => {
radiodiv.append(`<div><input type="radio" id="${idx+1}" name="ticket" value="${idx}">
<label for="${idx+1}">${idx+1}: ${ticket.join(', ')}</label></div>`);
});
$('#lotto-sprite-container').append(radiodiv);
$('.tickets input').change(function() {
var ticket = numbers[$(this).val()];
$('input[name="one"]').val(ticket[0]);
$('input[name="two"]').val(ticket[1]);
$('input[name="three"]').val(ticket[2]);
$('input[name="four"]').val(ticket[3]);
$('input[name="five"]').val(ticket[4]);
$('input[name="six"]').val(ticket[5]);
});
$('label').click(function() {
let id = $(this).prop("for");
$("#" + id).click();
});
}
$('document').ready( function() {
$('.center form:last-child() .half-width').addClass('flex-column');
var refreshbtn = $('<a>⭮</a>')
refreshbtn.click(function() {
refresh();
});
$('#lotto-sprite-container').append(refreshbtn);
if (!numbers)
generate();
else
populate();
});
})();