try {
window.AudioContext = window.AudioContext || window.webkitAudioContext, window.audioContext = new window.AudioContext
} catch (a) {
console.log("No Web Audio API support")
}
var WebAudioAPISoundManager = function(a) {
this.context = a;
this.bufferList = {};
this.playingSounds = {}
};
WebAudioAPISoundManager.prototype = {
addSound: function(a) {
var b = new XMLHttpRequest;
b.open("GET", a, !0);
b.responseType = "arraybuffer";
var c = this;
b.onload = function() {
c.context.decodeAudioData(b.response, function(b) {
b ? c.bufferList[a] = b : alert("error decoding file data: " + a)
})
};
b.onerror = function() {
console.log("BufferLoader: XHR error")
};
b.send()
},
stopSoundWithUrl: function(a) {
if (this.playingSounds.hasOwnProperty(a))
for (var b in this.playingSounds[a]) this.playingSounds[a].hasOwnProperty(b) && this.playingSounds[a][b].stop()
}
};
var WebAudioAPISound = function(a) {
this.url = a + ".mp3";
window.webAudioAPISoundManager = window.webAudioAPISoundManager || new WebAudioAPISoundManager(window.audioContext);
this.manager = window.webAudioAPISoundManager;
this.manager.addSound(this.url)
};
WebAudioAPISound.prototype = {
play: function(a) {
var b = this.manager.bufferList[this.url];
this.settings = {
loop: !1,
volume: .5
};
for (var c in a) a.hasOwnProperty(c) && (this.settings[c] = a[c]);
"undefined" !== typeof b && (a = this.makeSource(b), a.loop = this.settings.loop, a.start(0), this.manager.playingSounds.hasOwnProperty(this.url) || (this.manager.playingSounds[this.url] = []), this.manager.playingSounds[this.url].push(a))
},
stop: function() {
this.manager.stopSoundWithUrl(this.url)
},
makeSource: function(a) {
var b = this.manager.context.createBufferSource(),
c = this.manager.context.createGain();
c.gain.value = this.settings.volume;
b.buffer = a;
b.connect(c);
c.connect(this.manager.context.destination);
return b
}
};
var typingSound = new WebAudioAPISound("https://websemantics.uk/audio/speccy.keypress");
var speccy1Sound = new WebAudioAPISound("https://websemantics.uk/audio/speccy1");
var speccy2Sound = new WebAudioAPISound("https://websemantics.uk/audio/speccy2");
var box = document.getElementById("box"),
delay = 1;
function boxClass(cls, delay, add) {
if (add) {
setTimeout(function() {
box.classList.add(cls);
}, delay);
} else {
setTimeout(function() {
box.classList.remove(cls);
}, delay);
}
}
function animateWords() {
var delay = 0,
i = 12;
while (i--) {
boxClass('e' + (12 - i) + 'ON', delay, true);
delay += 200;
}
}
boxClass('bootup', delay, true);
delay += 500;
boxClass('bootup', delay);
boxClass('text_copy', delay, true);
delay += 1500;
boxClass('text_copy', delay);
boxClass('text_load1', delay, true);
setTimeout(function() {
typingSound.play({
// keep it quiet
volume: 0.1
});
}, delay);
delay += 1250;
boxClass('text_load1', delay - 10);
boxClass('text_load2', delay, true);
setTimeout(function() {
typingSound.play({
volume: 0.1
});
}, delay);
delay += 750;
boxClass('text_load2', delay - 10);
boxClass('text_load3', delay, true);
setTimeout(function() {
typingSound.play({
volume: 0.1
});
}, delay);
delay += 750;
setTimeout(function() {
typingSound.play({
volume: 0.1
});
}, delay - 100);
boxClass('text_load3', delay - 10);
boxClass('init_load', delay, true);
delay += 2920;
setTimeout(function() {
speccy1Sound.play({
loop: false,
volume: 0.1
});
}, delay);
delay += 80;
boxClass('start_load', delay, true);
delay += 1000;
boxClass('start_load', delay - 10);
boxClass('start_blip', delay, true);
delay += 300;
boxClass('start_blip', delay - 10);
boxClass('text_prog', delay, true);
setTimeout(function() {
document.body.addEventListener('click', ETgoHome, false);
}, delay);
delay += 1200;
boxClass('start_load', delay, true);
delay += 150;
setTimeout(function() {
speccy2Sound.play({
loop: false,
volume: 0.1
});
}, delay);
delay += 350;
boxClass('init_load', delay - 20);
boxClass('start_load', delay - 10);
boxClass('loading', delay, true);
setTimeout(animateWords, delay);
boxClass('text_prog', delay);
delay += 2150;
boxClass('loading', delay - 20);
boxClass('text_rtape', delay, true);
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