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{% extends "snippets/layout.html" %}
{% block title "Beats per Minute | Maximilian Möhring" %}
{% block css %}
.main {
font-size: inherit !important;
}
.jumbotron {
background-color: inherit !important;
border: 1px solid grey;
}
{% endblock %}
{% block main %}
<div class="container text-center">
<span id="countBpm">
<div class="jumbotron">
<div class="flavor-text">
<!--h1>Hier klicken um die BPMs zu zählen:</h1-->
<h1>Click here to count beats per minute</h1>
<!--em>Ist das Lied tanzbar? Was kann man dazu tanzen?</em-->
<em>How fast is the song? What's the matching dance?</em>
</div>
<h2><span id="showBpm">0</span> BPM</h2>
<button class="btn btn-primary">Click</button>
<div class="mt-5 mb-5 container" id="showDances">
<div class="row mb-2" id="showDances-standard">
</div>
<div class="row mb-2" id="showDances-latein"></div>
</div>
</div>
</span>
<button id="reset" class="btn btn-secondary">Reset</button>
<div class="row">
{% set type = "" %}
{% for dance in dances %}
{% if dance.type != type %}
{% set type = dance.type %}
<div class="col-12 mt-4 mb-2"> <h2>{{ type|capitalize }}</h2> </div>
{% endif %}
<div class="col" id="{{ dance.name }}">
<h3> {{ dance.name }} </h3>
{{ dance.minBarspm }} bis {{ dance.maxBarspm }} Takte pM
<br>
{{ dance.minBpm }} bis {{ dance.maxBpm }} BpM
<br>
{{ dance.bar }} Takt
</div>
{% endfor %}
</div>
</div>
<script>
var lastClick = 0;
var bpm = [];
var dances = {{ dump_dances() }};
var appendedDances = [];
var appendedHeader = [];
function median(values){
if ( values.length === 0 ) {
return 0;
}
values.sort(function(a,b){
return a-b;
});
var half = Math.floor(values.length / 2);
if (values.length % 2) {
return values[half];
}
return (values[half - 1] + values[half]) / 2.0;
}
function reset() {
lastClick = 0;
bpm = [];
appendedDances = [];
appendedHeader = [];
document.getElementById("showBpm").innerHTML = 0;
document.getElementById("showDances-standard").innerHTML = "";
document.getElementById("showDances-latein").innerHTML = "";
}
function getBpm(bpm) {
/* slice() copies by value, not by reference, so the median() doesn't mess with the array */
return Math.round(median(bpm.slice()));
}
function display(bpm) {
document.getElementById("showBpm").innerHTML = getBpm(bpm.slice());
}
window.addEventListener("load",function() {
document.getElementById("countBpm").addEventListener("click", function(e){
var d = new Date();
var t = d.getTime();
var seconds = ( t - lastClick ) / 1000;
if ( 0 != lastClick ) {
if ( seconds > 10 ) {
// reset after 10 seconds delay
reset();
} else {
var _bpm = 60 / seconds
bpm.push( _bpm );
if ( bpm.length > 25 ) {
// keep only last 10 clicks
bpm.shift();
}
display(bpm);
}
}
lastClick = t;
if ( bpm.length >= 5 ) {
for ( i = 0; i < dances.length; i++ ) {
var dance = dances[i];
if ( ( (dance.minBpm-3) <= getBpm(bpm) ) && ( getBpm(bpm) <= (dance.maxBpm+3) ) && -1 == appendedDances.indexOf( dance.name ) ) {
var danceDiv = document.createElement("div");
danceDiv.innerHTML = document.getElementById( dance.name ).innerHTML;
danceDiv.classList.add("dance-created");
danceDiv.classList.add("col");
if ( -1 == appendedHeader.indexOf( dance.type ) ) {
var danceHeader = document.createElement("div");
danceHeader.classList.add("col-12");
danceHeader.classList.add("mb-2");
danceHeader.classList.add("mt-4");
danceHeader.innerHTML = "<h3> Mögliche " + dance.type[0].toUpperCase() + dance.type.substr(1) + "-Tänze</h3>";
//danceHeader.innerHTML = "<h3> Possible " + dance.type[0].toUpperCase() + dance.type.substr(1) + " dance</h3>";
document.getElementById( "showDances-" + dance.type ).appendChild(danceHeader);
appendedHeader.push( dance.type );
}
appendedDances.push( dance.name );
document.getElementById( "showDances-" + dance.type ).appendChild(danceDiv);
}
}
}
});
document.getElementById("reset").addEventListener("click", function(e){
reset();
});
});
if ('serviceWorker' in navigator){
navigator.serviceWorker.register('serviceworker.js').then(function(registration){
console.log('ServiceWorker registration successful with scope: ', registration.scope);
}).catch(function(err){
console.log('ServiceWorker registration failed: ', err);
});
} else {
console.log('no service worker found. offline access is not granted.');
}
</script>
{% endblock %}
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