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visualization.html
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<!doctype html>
<html>
<head>
<link rel="stylesheet" href="https://use.typekit.net/uhv1skr.css">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="viewport" content="width=device-width, user-scalable=no">
<meta name="format-detection" content="telephone=no">
</head>
<body style="background: white;">
<div class="scripts">
<script src="./third-party/two.js"></script>
<script src="./third-party/xhr.js"></script>
<script src="./third-party/url.js"></script>
<script>
var amount = 20;
var drag = 0.02;
var added = false;
var words = {
index: 0
};
var styles = {
size: 20,
family: 'mrs-eaves, times, serif',
weight: 400
};
var showArrows = true;
var two = new Two({
type: Two.Types.canvas,
fullscreen: true
}).appendTo(document.body);
if (url.boolean('autoplay', false)) {
two.play();
}
window.addEventListener('message', function(e) {
if (!(/(localhost|lost\-and\-found\.gifts)/i.test(e.origin))) {
return;
}
switch (e.data) {
case 'play':
if (!two.playing) {
two.play();
}
break;
case 'stop':
if (two.playing) {
two.pause();
}
break;
}
}, false);
two.renderer.domElement.addEventListener('click', play, false);
two.renderer.domElement.addEventListener('touchstart', play, false);
var elements = new Two.Group();
two.add(elements);
var program = new Two.Rectangle(two.width / 2, two.height / 2, Math.max(two.width * 0.1, 100), two.height * 0.5);
program.dashes = [1, 0];
var threshold = new Two.Line(two.width / 2, 0, two.width / 2, two.height);
threshold.dashes = [10, 2];
var title = new Two.Text('program', two.width / 2, two.height / 2 - program.height / 2 - styles.size, styles);
title.family = 'mrs-eaves-roman-all-petite-c, mrs-eaves, times, serif';
var rect = title.getBoundingClientRect();
title.card = new Two.Rectangle(two.width / 2, two.height / 2 - program.height / 2 - styles.size, rect.width, rect.height);
title.card.noStroke();
var english = new Two.Text('', two.width / 2, two.height / 2, styles);
english.family = 'mrs-eaves-roman-all-petite-c, mrs-eaves, times, serif';
two.add(threshold, program, title.card, title, english);
xhr.get('./assets/latin-emoji.json', function(resp) {
var json = JSON.parse(resp);
words.latin = Object.keys(json);
words.emojis = Object.values(json);
add();
generateArrows();
two.bind('update', update);
});
xhr.get('./assets/word-translations.json', function(resp) {
words.english = JSON.parse(resp);
});
two.bind('resize', resize);
two.bind('update', update);
function play(e) {
if (!two.playing) {
two.play();
}
}
function resize() {
program.translation.set(two.width / 2, two.height / 2);
program.width = Math.max(two.width * 0.1, 100);
program.height = two.height * 0.5;
threshold.vertices[0].x = two.width / 2;
threshold.vertices[0].y = 0;
threshold.vertices[1].x = two.width / 2;
threshold.vertices[1].y = two.height;
title.translation.set(two.width / 2, two.height / 2 - program.height / 2 - title.size);
english.translation.set(two.width / 2, two.height / 2);
}
function update(frameCount, timeDelta) {
if (!timeDelta) {
return;
}
english.opacity -= english.opacity * 0.0625;
for (var i = 0; i < elements.children.length; i++) {
var elem = elements.children[i];
var dx = two.width * elem.target.x - elem.translation.x;
var dy = two.height * elem.target.y - elem.translation.y;
var px = elem.translation.x;
var py = elem.translation.y;
var easing = elem.speed * (timeDelta / 250);
if (elem.isArrow) {
elem.visible = showArrows;
}
if (elem.translation.x < two.width * 0.5) {
elem.translation.x += dx * easing;
elem.translation.y += dy * (easing * 6);
elem.rotation = Math.atan2(elem.translation.y - py, elem.translation.x - px);
} else if (elem.translation.x > two.width - 1) {
reset(elem);
} else {
elem.translation.x += timeDelta / 20;
if (elem.emoji && !elem.emoji.visible) {
elem.text.visible = false;
elem.emoji.visible = true;
elem.rotation = 0;
if (words.english) {
english.value = words.english[elem.text.value];
english.scale = 1;
english.opacity = 1;
var rect = english.getBoundingClientRect();
english.scale = Math.min(program.width / rect.width, 1);
}
add();
} else if (elem.isArrow) {
elem.rotation = 0;
elem.visible = false;
}
}
}
}
function add() {
if (added || words.index > amount) {
added = true;
return;
}
var elem = new Two.Group();
elem.text = new Two.Text('', 0, 0, styles);
elem.emoji = new Two.Text('', 0, 0, styles);
elem.text.baseline = 'baseline';
elem.emoji.baseline = 'middle';
elem.add(elem.text, elem.emoji);
reset(elem);
elements.add(elem);
}
function generateArrows() {
for (var i = 0; i < amount; i++) {
var arrow = makeArrow(0, 0, 33, 0.5);
arrow.translation.x = Math.random() * two.width;
arrow.translation.y = (Math.random() * two.height * 2 - two.height) + two.height / 2;
if (!arrow.target) {
arrow.target = new Two.Vector();
}
arrow.target.x = 1.0;
arrow.target.y = 0.5 + Math.random() * 0.05 - 0.025;
arrow.speed = drag + Math.random() * 0.05;
elements.add(arrow);
}
}
function reset(elem) {
var index = words.index;
var latin = words.latin[index];
var emoji = words.emojis[index];
elem.visible = true;
if (elem.emoji) {
elem.index = index;
elem.text.value = latin;
elem.emoji.value = emoji;
elem.emoji.visible = false;
elem.text.visible = true;
words.index = (words.index + 1) % words.latin.length;
}
var seed = Math.random();
if (seed > 0.66) {
elem.translation.x = Math.random() * two.width * 0.33;
elem.translation.y = two.height * 1.25;
} else if (seed > 0.33) {
elem.translation.x = Math.random() * two.width * 0.33;
elem.translation.y = - two.height * 0.25;
} else {
elem.translation.x = - two.width * 0.2;
elem.translation.y = (Math.random() * two.height * 2 - two.height) + two.height / 2;
}
if (!elem.target) {
elem.target = new Two.Vector();
}
elem.target.x = 1.0;
elem.target.y = 0.5 + Math.random() * 0.05 - 0.025;
elem.speed = drag + Math.random() * 0.02;
}
function makeArrow(x, y, width, linewidth) {
var x1 = - width / 2;
var y1 = 0;
var x2 = width / 2;
var y2 = 0;
var line = new Two.Line(x1, y1, x2, y2);
line.linewidth = linewidth;
var head = new Two.Polygon(width / 2, 0, linewidth * 6, 3);
head.rotation = Math.PI / 2;
head.noStroke();
head.fill = line.stroke;
var group = new Two.Group();
group.add(line, head);
group.translation.set(x, y);
group.isArrow = true;
return group;
}
</script>
</div>
</body>
</html>