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script.js
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script.js
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// *Declare isTrue outside the initialize function to preserve its value
let isTrue = true;
var msg = document.getElementById("birthday-message");
var playButton = document.getElementById('playButton');
var audio = document.getElementById("myAudio");
// *After clicking "Play" button, run following function
function playAudio() {
playButton.style.display = 'none';
// !Add Happy Birthday Song
audio.src = "./audios/introMusic.mp3";
audio.play();
// Checking process
audio.play().then(function () {
console.log("Audio playback started successfully.");
}).catch(function (error) {
console.error("Error playing audio:", error);
});
// !Add 1st text
setTimeout(function () {
msg.innerText = "Guys sing with me🤗";
}, 2000);
// !Add 2nd text
initialize();
setTimeout(function () {
msg.innerText = "Guys, give him a round of applause👏";
// !Add clapping audio
audio.src = "./audios/clap.mp3";
audio.play();
}, 19000);
};
// *Run this when the page is loaded (mainly add animations for balloons)
window.onload = function () {
// *Get all the rotating images
const images = document.querySelectorAll('.rotating-image');
// *Function to generate a random position within the container dimensions
function getRandomPosition() {
const maxX = window.innerWidth - 100; // *width of the balloon
const maxY = window.innerHeight - 150; // *height of the balloon
const randomX = Math.floor(Math.random() * maxX);
const randomY = Math.floor(Math.random() * maxY);
return { x: randomX, y: randomY };
}
// *Function to apply random position to each image individually
function applyRandomPosition(image) {
const position = getRandomPosition();
image.style.left = `${position.x}px`;
image.style.top = `${position.y}px`;
}
// *Apply initial random positions to balloons
images.forEach(applyRandomPosition);
// *Move the balloons randomly and float them
function moveBalloons() {
images.forEach(image => {
const newPosition = getRandomPosition();
image.style.animation = `float 2s infinite alternate`;
image.style.left = `${newPosition.x}px`;
image.style.top = `${newPosition.y}px`;
});
}
// *Move balloons randomly periodically ()
setInterval(moveBalloons, 2000);
playButton.addEventListener('click', playAudio);
};
// !Blowing out the candles
function initialize() {
navigator.mediaDevices.getUserMedia({ audio: true })
.then(stream => {
const audioContext = new AudioContext();
const analyser = audioContext.createAnalyser();
const microphone = audioContext.createMediaStreamSource(stream);
analyser.smoothingTimeConstant = 0.3;
analyser.fftSize = 1024;
microphone.connect(analyser);
const dataArray = new Uint8Array(analyser.frequencyBinCount);
const volumeDisplay = document.getElementById('volumeDisplay');
const candle1 = document.getElementById('candle1');
const candle2 = document.getElementById('candle2');
const candle3 = document.getElementById('candle3');
const candle4 = document.getElementById('candle4');
const photoElement = document.getElementById('photo');
function checkVolume() {
var msg1 = document.getElementById("msg1");
var msg2 = document.getElementById("msg2");
var msg3 = document.getElementById("msg3");
var msg4 = document.getElementById("msg4");
var msg5 = document.getElementById("msg5");
var msg6 = document.getElementById("msg6");
var msg7 = document.getElementById("msg7");
var audio = document.getElementById("myAudio");
analyser.getByteFrequencyData(dataArray);
let total = 0;
const length = dataArray.length;
for (let i = 0; i < length; i++) {
total += dataArray[i];
}
const averageVolume = total / length;
const volumeLevel = Math.round(averageVolume);
// Update volume display (default=hidden)
// volumeDisplay.innerText = `Volume: ${volumeLevel}`;
// !if mic volume is greater than 95 hide the candles and texts
if (volumeLevel >= 95) {
isTrue = false;
msg.innerText = "";
candle1.style.display = 'none';
candle2.style.display = 'none';
candle3.style.display = 'none';
candle4.style.display = 'block';
}
// *Changing flames according to mic volume
else if (volumeLevel > 75) {
candle1.style.display = 'none';
candle2.style.display = 'none';
candle3.style.display = 'block';
candle4.style.display = 'none';
}
// *Changing flames according to mic volume
else if (volumeLevel > 30) {
candle1.style.display = 'none';
candle2.style.display = 'block';
candle3.style.display = 'none';
candle4.style.display = 'none';
}
// *Changing flames according to mic volume
else {
// *if mic volume is less than or equal 30 display following text
setTimeout(function () {
msg.innerText = "ඔහොම නම් බෑ ළමයො🤦♂️... \nmic එකට ලං වෙලා හොඳට සද්දෙට පිබින්න...!!!";
}, 500);
// *Show flame images
candle1.style.display = 'block';
candle2.style.display = 'none';
candle3.style.display = 'none';
candle4.style.display = 'none';
// *Hide the photo
photoElement.style.display = 'none';
}
// *Repeat the function
if (isTrue) {
setTimeout(checkVolume, 100);
} else {
// *Hide the candles, when the mic volume is above 95
stream.getTracks()[0].stop();
// *hide candles and text
setTimeout(function () {
msg.innerText = "";
candle4.style.display = 'none';
// !Visible the img
photoElement.style.display = 'block';
}, 1000);
// !Wishing msg (you can customize the time and texts as you wish)
setTimeout(function () {
msg1.innerHTML = "<b>Happy Birthday Pamu</b>😘";
// !Add a voice to read text
audio.src = "./audios/voice.mp3";
audio.play();
}, 2000);
setTimeout(function () {
msg2.innerText = "\nYou are very special, and";
}, 4000);
setTimeout(function () {
msg3.innerText = "I hope you have a great day🌟";
}, 6000);
setTimeout(function () {
msg4.innerText = "You deserve all the happiness in the world😊";
}, 8000);
setTimeout(function () {
msg5.innerText = "\nHave lots of fun today and enjoy your life!🎉";
}, 11000);
setTimeout(function () {
msg6.innerText = "Best wishes from your friend";
}, 14500);
setTimeout(function () {
msg7.innerHTML = "<b>Universe</b>🌏";
}, 15500);
setTimeout(function () {
// !Add a song to repeat until the page closes
audio.src = "./audios/endMusic.mp3";
audio.play();
audio.volume = 0.6;
audio.loop = true;
}, 17000);
}
}
// *Display after ending the clapping
setTimeout(function () {
msg.innerText = "Pamuda blow the candles!!!";
}, 25000);
// Call the function initially
setTimeout(function () {
// !Send to the mic volume checking
checkVolume();
}, 28000);
})
// !If the mic access denied show this msg
.catch(err => {
console.error('Error accessing microphone:', err);
});
};