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var trigrams = {};
var trigramKeyList;
var sumStartsWith = {};
function loadTrigrams(responseText)
{
var lines = responseText.split('\n');
for (var i = 0; i < lines.length; i++)
{
var trigram = lines[i].substring(0, 3);
var value = parseInt(lines[i].substring(4, lines[i].length));
if (trigram == '' || isNaN(value))
continue;
trigrams[trigram] = value;
}
trigramKeyList = Object.keys(trigrams);
document.getElementById("loading").innerHTML = "";
}
function start()
{
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function()
{
if (xhttp.readyState == 4 && xhttp.status == 200)
{
loadTrigrams(xhttp.responseText);
}
};
xhttp.open("GET", "https://raw.githubusercontent.com/pommicket/NameGenerator/master/trigrams.txt", true);
xhttp.send();
}
function pickFirst2()
{
var count = 0;
var sum = 0;
for (var i = 0; i < trigramKeyList.length; i++)
{
if (trigramKeyList[i][0] == ' ')
{
sum += trigrams[trigramKeyList[i]];
}
}
var selected = Math.random() * sum;
for (var i = 0; i < trigramKeyList.length; i++)
{
if (trigramKeyList[i][0] == ' ')
{
count += trigrams[trigramKeyList[i]];
if (selected < count)
return trigramKeyList[i].substring(1);
}
}
return "ERROR";
}
function nextChar(name)
{
var last2 = name.substring(name.length-2);
var total = 0;
if (sumStartsWith[last2] == NaN || sumStartsWith[last2] == undefined)
{
for (var i = 0; i < trigramKeyList.length; i++)
{
if (trigramKeyList[i].substring(0, 2) == last2)
total += trigrams[trigramKeyList[i]];
}
sumStartsWith[last2] = total;
}
else
{
total = sumStartsWith[last2];
}
var selected = Math.random() * total;
var count = 0;
for (var i = 0; i < trigramKeyList.length; i++)
{
if (trigramKeyList[i].substring(0, 2) == last2)
{
count += trigrams[trigramKeyList[i]];
if (selected < count)
return trigramKeyList[i][2];
}
}
return "ERROR";
}
function generateName()
{
var first = pickFirst2();
var name = first;
var next = '';
var length = 0;
do
{
name += next;
next = nextChar(name);
}
while (next != ' ');
name = name[0].toUpperCase() + name.substring(1);
return name;
}
function createNames()
{
var nameStr = '';
var numNames = document.getElementById("numNames").value;
var nameDiv = document.getElementById("names");
window.setTimeout(50, function() {document.getElementById("loading").innerHTML = "Loading...";});
nameDiv.innerHTML = "";
for (var i = 0; i < numNames; i++)
nameStr += generateName() + "<br>";
if (document.getElementById("outputNames").checked)
nameDiv.innerHTML = nameStr;
document.getElementById("loading").innerHTML = "";
var dload;
dload = document.getElementById("download");
dload.innerHTML = "Download names (.txt)";
var txt = nameStr.replace(/<br>/g, "\n");
dload.href = "data:text/plain;charset=utf-8," + encodeURI(txt);
stopLoading();
}
function startLoading()
{
$('#button').prop('disabled', true);
$('#button').html('Loading...');
}
function stopLoading()
{
$('#button').prop('disabled', false);
$('#button').html('Create Names!');
}
function create()
{
startLoading();
window.setTimeout(createNames, 1);
}
start();
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