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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> | |
<meta content='width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0' name="viewport" /> | |
<link rel="icon" href="data:,"> | |
<title>String art</title> | |
<script type="text/javascript" src="jquery.min.js"></script> | |
<style> | |
html, body { | |
height: 100%; | |
} | |
button { | |
width: 100%; | |
} | |
#backward { | |
font-size: 10vh; | |
height: 15%; | |
} | |
#current { | |
font-size: 30vh; | |
} | |
#forward { | |
height: 82%; | |
} | |
#prev, #next { | |
font-size: 12vh; | |
opacity: 0.6; | |
} | |
#prevprev, #nextnext { | |
font-size: 5vh; | |
opacity: 0.2; | |
} | |
</style> | |
<script> | |
"use strict"; | |
var pinSequence; | |
var numLines; | |
var curLine; | |
var urlProgress = new URLSearchParams(location.search); | |
function counterclockwise(pin) { | |
if (pin < 1 || pin > numLines - 1) | |
return; | |
var a = pinSequence[pin - 1]; | |
var b = pinSequence[pin]; | |
var c = pinSequence[pin + 1]; | |
if (a < b) | |
return a < c && c < b; | |
else | |
return a < c || c < b; | |
} | |
function update() { | |
$('#backward').text(curLine + "/" + (numLines - 1)); | |
var pin = pinSequence[curLine]; | |
if (curLine >= 1) { | |
$('#prev').text(pinSequence[curLine - 1]); | |
if (curLine >= 2) | |
$('#prevprev').text(pinSequence[curLine - 2]); | |
else | |
$('#prevprev').text(''); | |
} else | |
$('#prev').text(''); | |
$('#current').text(pin + (counterclockwise(curLine) ? "↶" : "↷")); | |
if (curLine < numLines - 1) { | |
$('#next').text(pinSequence[curLine + 1]); | |
if (curLine < numLines - 2) | |
$('#nextnext').text(pinSequence[curLine + 2]); | |
else | |
$('#nextnext').text(''); | |
} else | |
$('#next').text(''); | |
var msg = new SpeechSynthesisUtterance(pin.toString()); | |
msg.lang = 'nl-BE'; | |
window.speechSynthesis.speak(msg); | |
urlProgress.set("line", curLine); | |
window.history.replaceState({}, '', location.pathname + "?" + urlProgress.toString()); | |
} | |
function init() { | |
$('#forward').click( () => { | |
if (curLine >= numLines - 1) | |
return; | |
curLine++; | |
update(); | |
}); | |
$('#backward').click( () => { | |
if (curLine <= 0) | |
return; | |
curLine--; | |
var terug = new SpeechSynthesisUtterance("Terug naar " + curLine + "! . ! . !"); | |
terug.lang = "nl-BE"; | |
window.speechSynthesis.speak(terug); | |
update(); | |
}); | |
document.documentElement.webkitRequestFullscreen(); | |
update(); | |
} | |
$( function() { | |
$('#current').text("Loading..."); | |
window.speechSynthesis.getVoices(); | |
$.getJSON("pinsequence.json", function(data) { | |
pinSequence = data; | |
numLines = pinSequence.length; | |
if (urlProgress.has("line")) | |
curLine = parseInt(urlProgress.get("line")); | |
else | |
curLine = 0; | |
$('#forward').one("click", init ); | |
$('#current').text("Go"); | |
}); | |
}); | |
</script> | |
</head> | |
<body> | |
<button id="backward"></button> | |
<button id="forward"> | |
<span id="prevprev"> </span><br> | |
<span id="prev"> </span><br> | |
<span id="current"> </span> <br> | |
<span id="next"> </span><br> | |
<span id="nextnext"> </span> | |
</button> | |
</body> | |
</html> |
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