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GrayscaleTestv2.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>Incremental Shades Test</title>
<meta name="description" content="Incremental Shades Test">
<meta name="author" content="Utkan Gezer">
<style>html {
-ms-content-zooming: none;
}
* {
user-select: none;
-webkit-user-select: none;
}
body {
font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
/*font-size: 9px;*/
/*font-weight: bold;*/
display: flex;
cursor: default;
}
#dialogoverlay {
position: fixed;
left: 0;
right: 0;
top: 0;
bottom: 0;
background-color: rgba(0, 0, 0, 0.75);
display: flex;
justify-content: center;
align-items: center;
z-index: 100;
}
#dialogbox {
display: flex;
flex-direction: column;
position: fixed;
/*min-height: 50%;
min-width: 50%;*/
max-height: 90%;
max-width: 90%;
box-sizing: border-box;
padding: 3ex 3em;
background-color: #FFF;
border-radius: 15px;
}
.dialogoptions {
flex-shrink: 1;
display: flex;
flex-wrap: wrap;
justify-content: center;
max-width: 1840px;
position: relative;
margin-top: 15px;
overflow-y: auto;
}
.dialogoption {
display: inline-block;
padding: 8px;
margin: 2px;
flex-basis: 0;
flex-grow: 1;
text-align: center;
box-shadow: inset 0 0 4px rgb(192, 192, 192);
cursor: pointer;
}
.dialogoption:hover {
background-color: rgba(192, 192, 192, 0.2);
}
.dialogoption:active {
background-color: rgba(192, 192, 192, 0.8);
}
.dialogoptionselected, .dialogoptionselected:hover {
background-color: rgba(192, 192, 192, 0.5);
}
@keyframes shadowglow {
0% {
text-shadow: 0px 0px 2px rgba(162, 192, 192, 0.1);
}
100% {
text-shadow: 0px 0px 4px rgba(162, 192, 192, 0.7);
}
}
.dialogsubmit {
flex-grow: 1;
text-align: center;
padding: 15px;
font-size: 150%;
color: rgba(192, 192, 192, 0.5);
transition: color 450ms ease-in;
}
.dialogsubmitenabled {
color: rgba(162, 192, 192, 1);
cursor: pointer;
}
.dialogsubmitglowing {
text-shadow: 0px 0px 2px rgba(162, 192, 192, 0.1);
animation-delay: 2s;
animation-duration: 2s;
animation-name: shadowglow;
animation-iteration-count: infinite;
animation-direction: alternate;
animation-timing-function: linear;
}
#testbody {
flex-grow: 1;
overflow-y: auto;
}
#testbands {
position: relative;
margin: 0 3vw;
}
.testband {
position: relative;
height: 50vh;
width: 100%;
}
.delim {
position: absolute;
z-index: 5;
height: 0;
left: -0.5vw;
right: -2vw;
margin-top: -0.9vw;
margin-left: -1.5vw;
border-left: 1.5vw solid rgba(128, 128, 128, 0.3);
border-right: 1.5vw solid rgba(128, 128, 128, 0.3);
border-top: 0.9vw solid transparent;
border-bottom: 0.9vw solid transparent;
opacity: 0.7;
cursor: pointer;
}
.delim:after {
content: '';
position: absolute;
left: 0;
right: 0;
top: -10vh;
bottom: -10vh;
}
.delim:hover {
opacity: 0.8;
}
.delim:active {
opacity: 0.9;
}
.delimselected {
border-left-color: rgb(216, 128, 128);
border-right-color: rgb(216, 128, 128);
}
.falselymissed::before {
content: '';
position: absolute;
left: 0.5vw;
right: 0.5vw;
top: -10vh;
bottom: -10vh;
background: rgb(65, 175, 65);
}
.falselyhit::before {
content: '';
position: absolute;
left: 0.5vw;
right: 0.5vw;
top: -10vh;
bottom: -10vh;
background: rgb(250, 50, 50);
}
/*.falselyhit, .falselymissed {
opacity: 1;
}*/
.falselymissed:hover::before, .falselyhit:hover::before {
background: transparent;
}
.testcontrolwidth {
width: 200px;
}
@media (orientation: portrait) {
.testcontrolwidth {
width: 100px;
}
}
#testcontrols {
position: fixed;
top: 0;
bottom: 0;
right: 0;
/* width shall comefrom .testcontrolwidth */
margin: inherit;
display: flex;
flex-direction: column;
font-size: 200%;
}
#testcontrols > div {
flex-basis: 0;
flex-grow: 1;
display: flex;
justify-content: center;
align-items: center;
}
/* Glow stuff */
#testcontrols > div:nth-child(odd) {
background: #5A5A5A;
color: #A5A5A5;
}
#testcontrols > div:nth-child(odd):hover {
text-shadow: 0px 0px 2px #A5A5A5;
}
#testcontrols > div:nth-child(even) {
background: #A5A5A5;
color: #5A5A5A;
}
#testcontrols > div:nth-child(even):hover {
text-shadow: 0px 0px 2px #5A5A5A;
}
#testsubmit {
font-size: 200%;
font-weight: bold;
cursor: pointer;
}
.testcontroltext {
display: inline-block;
text-align: center;
transition: transform 250ms ease;
}
@media (orientation: portrait) {
.testcontroltext {
transform: rotate(-90deg);
}
}</style>
</head>
<body>
<div id="testbody">
<div id="testbands">
</div>
</div>
<div id="testcontrolsspacer" class="testcontrolwidth"></div>
<div id="testcontrols" class="testcontrolwidth">
</div>
<script>Array.prototype.last = function () {
return this[this.length - 1];
}
function add(a, b) {
return a + b;
}
var dialogoverlay = document.createElement('div');
dialogoverlay.id = 'dialogoverlay';
var dialogboxtemplate = document.createElement('div');
dialogboxtemplate.id = 'dialogbox';
var dialogbox = null;
function cleardialog() {
if (document.body.contains(dialogoverlay)) {
document.body.removeChild(dialogoverlay);
}
}
function makedialog() {
// place the overlay if it was not already present
if (!document.body.contains(dialogoverlay)) {
document.body.appendChild(dialogoverlay);
}
if (dialogbox && dialogoverlay.contains(dialogbox)) {
var newdialogbox = dialogboxtemplate.cloneNode(false);
dialogoverlay.replaceChild(newdialogbox, dialogbox);
dialogbox = newdialogbox;
}
else {
dialogbox = dialogboxtemplate.cloneNode(false);
dialogoverlay.appendChild(dialogbox);
}
return dialogbox;
}
var colordepth = 8;
var shadelevelmax = (1 << colordepth) - 1;
function shadecount(shadestep) {
return Math.floor(shadelevelmax / shadestep) + 1;
}
function grayshade2csscolor(shade) {
return 'rgb(' + Array(3).fill(shade.toString()).join() + ')';
}
function preparetest(shadestep) {
var shcount = shadecount(shadestep);
/*
Here on, we shall prepare the testcontrols.
*/
var testcontrols = document.getElementById('testcontrols');
// Test progress
var testprogress = document.createElement('div');
testprogress.id = 'testprogress';
var testprogresstext = document.createElement('div');
testprogresstext.className = 'testcontroltext';
function updatetestprogresstext(delimsselected) {
testprogresstext.innerHTML = `${delimsselected} / ${shcount - 1} splits`;
}
updatetestprogresstext(0);
testprogress.appendChild(testprogresstext);
// Append test controls
testcontrols.appendChild(testprogress);
/*
Here on, we shall prepare the testbands.
*/
var testbands = document.getElementById('testbands');
var shadespan = (shcount - 1) * shadestep;
var minshade = Math.floor((shadelevelmax - shadespan) / 2);
var band = document.createElement('div');
band.className = 'testband';
function makeband(shade) {
var aband = band.cloneNode(false);
aband.style['background-color'] = grayshade2csscolor(shade);
testbands.appendChild(aband);
}
var falsedelims = Array();
var truedelims = Array();
function makedelim(delimindeed, shadebelow) {
function delimonclicked(event) {
var adelim = event.currentTarget;
adelim.selected = !adelim.selected;
adelim.classList.toggle('delimselected');
updatetestprogresstext(document.getElementsByClassName('delimselected').length);
}
var delim = document.createElement('div');
delim.className = 'delim';
delim.selected = false;
delim.onclick = delimonclicked;
testbands.appendChild(delim);
if (delimindeed) {
truedelims.push(delim);
}
else {
// delim.click();
falsedelims.push(delim);
}
}
var shade = minshade;
makeband(shade);
while (true) {
delimindeed = Math.random() < 0.5;
if (delimindeed) shade += shadestep;
if (shade > shadelevelmax) break;
makedelim(delimindeed, shade);
makeband(shade);
}
function evaluatetest() {
var hitcount = truedelims.map(function (delim) {
return delim.selected ? 1 : 0;
}).reduce(add, 0);
var avoidcount = falsedelims.map(function (delim) {
return !delim.selected ? 1 : 0;
}).reduce(add, 0);
var hitrate = hitcount / truedelims.length;
var avoidrate = avoidcount / falsedelims.length;
var hitratedisplay = document.createElement('div');
var avoidratedisplay = document.createElement('div');
var hitratedisplaytext = document.createElement('div');
var avoidratedisplaytext = document.createElement('div');
hitratedisplaytext.className = 'testcontroltext';
avoidratedisplaytext.className = 'testcontroltext';
hitratedisplaytext.innerHTML = `${hitcount} / ${truedelims.length} hit`;
avoidratedisplaytext.innerHTML = `${avoidcount} / ${falsedelims.length} avoided`;
hitratedisplay.appendChild(hitratedisplaytext);
avoidratedisplay.appendChild(avoidratedisplaytext);
// Empty out the testcontrols
var elementchild;
while (elementchild = testcontrols.firstElementChild) {
testcontrols.removeChild(elementchild);
}
testcontrols.appendChild(hitratedisplay);
testcontrols.appendChild(avoidratedisplay);
truedelims.forEach(function (delim) {
if (!delim.selected) {
delim.classList.add('falselymissed');
}
delim.onclick = null;
});
falsedelims.forEach(function (delim) {
if (delim.selected) {
delim.classList.add('falselyhit');
}
delim.onclick = null;
});
}
/*
Here on, we shall continue preparing the testcontrols.
*/
// Test submit
var testsubmit = document.createElement('div');
testsubmit.id = 'testsubmit';
var testsubmittext = document.createElement('div');
testsubmittext.className = 'testcontroltext';
testsubmittext.innerHTML = 'OK!';
testsubmit.appendChild(testsubmittext);
testsubmit.onclick = function (event) {
var dialogbox = makedialog();
// dialogbox question
var question = document.createTextNode('Are you sure that you\'re done?');
// dialogbox confirm
var confirm = document.createElement('div');
confirm.className = 'dialogsubmit dialogsubmitenabled';
confirm.onclick = function (event) {
cleardialog();
evaluatetest();
};
confirm.innerHTML = 'Yes';
// dialogbox deny
var deny = document.createElement('div');
deny.className = 'dialogsubmit dialogsubmitenabled';
deny.onclick = function (event) {
cleardialog();
};
deny.innerHTML = 'Let me rethink';
// populate dialogbox
dialogbox.appendChild(question);
dialogbox.appendChild(confirm);
dialogbox.appendChild(deny);
}
// Append test controls
testcontrols.appendChild(testsubmit);
}
function askfordifficulty() {
var dialogbox = makedialog();
// dialogbox question
var question = document.createTextNode('How hard would you like to have your test?');
// dialogbox options
var options = document.createElement('div');
options.className = 'dialogoptions';
var optiontemplate = document.createElement('div');
optiontemplate.className = 'dialogoption';
dialogbox.option = null;
for (var shadestep = 1; shadestep < 21; shadestep++) {
var option = optiontemplate.cloneNode(false);
option.innerHTML = `${shadestep} increment (${shadecount(shadestep)} shades)`;
option.shadestep = shadestep;
option.onclick = function (event) {
if (dialogbox.option) {
dialogbox.option.classList.remove('dialogoptionselected');
}
event.currentTarget.classList.add('dialogoptionselected');
dialogbox.option = event.currentTarget;
submit.classList.add('dialogsubmitenabled', 'dialogsubmitglowing');
};
options.appendChild(option);
}
// dialogbox submit
var submit = document.createElement('div');
submit.className = 'dialogsubmit';
submit.onclick = function (event) {
if (event.currentTarget.classList.contains('dialogsubmitenabled')) {
var shadestep = dialogbox.option.shadestep;
cleardialog();
preparetest(shadestep);
}
};
submit.innerHTML = 'Continue';
// populate dialogbox
dialogbox.appendChild(question);
dialogbox.appendChild(options);
dialogbox.appendChild(submit);
}
function main() {
askfordifficulty();
}
document.body.onload = main;</script>
</body>
</html>