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// the function to be called when the generate name button is pressed
function generateName() {
// get the values of the various buttons and selectors and store them as variables
var gender = document.getElementById("gender").value;
var origin = document.getElementById("origin").value;
var count = parseInt(document.getElementById("number").value);
var surnames = document.getElementById("surnames").checked;
// create a request object
var request = {
"origin": origin,
"gender": gender,
"count": count,
"surname": surnames
};
// turn the request json into a string
request = JSON.stringify(request)
console.log(request)
// Make the http request using ajax
const http = new XMLHttpRequest();
const url = "/api/name";
http.open("POST", url);
http.send(request);
// create a listener for when the request is returned
http.onreadystatechange = (e) => {
showNames(JSON.parse(http.responseText))
}
}
// Change the page's html to show the generated names
function showNames(names) {
// get the name area element
var nameArea = document.getElementById("namearea");
// delete all existing name entries
while (nameArea.lastChild) {
nameArea.removeChild(nameArea.lastChild);
}
// iterate through all of the given names
names.names.forEach((name) => {
// create the name element
var nameElement = document.createElement("p");
nameElement.textContent = name;
nameElement.classList.add("name");
// add the name element to the name area
nameArea.appendChild(nameElement);
});
}
function updateMap() {
// Load the current country of origin
var origin = document.getElementById("origin").value;
console.log(origin)
// get the canvas context for the worldmap
var canvas = document.getElementById("worldmap");
var context = canvas.getContext("2d");
// clear the canvas
context.clearRect(0, 0, canvas.width, canvas.height);
// create the background image
var background = new Image();
background.src = "/map/background.png"
// wait for the image to load before trying to draw it
background.onload = function() {
context.drawImage(background, 0, 0)
// only draw the country after the background has been drawn
var country = new Image();
country.src = "/map/" + origin + ".png"
// wait for the image to load before trying to draw it
country.onload = function() {
context.drawImage(country, 0, 0)
};
};
}
// force the count to be between 1 and 99
function forceCount() {
var count = parseInt(document.getElementById("number").value);
if (count > 99) {
document.getElementById("number").value = 99
} else if (count < 1) {
document.getElementById("number").value = 1
}
}
// toggle the visibility of advanced options
function toggleAdvanced() {
// get the advanced options div
var element = document.getElementById("advancedoptions");
// if display: none, make it visible and vice versa
if (element.style.display == "none") {
element.style.display = ""
} else {
element.style.display = "none"
}
}
// toggle the checkbox from checked to unchecked and vice versa
function checkBox(checkbox) {
if (checkbox.getAttribute("checked")) {
// uncheck the box
checkbox.removeAttribute("checked");
} else {
// set the box to checked
checkbox.setAttribute("checked", true);
}
}
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