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index.html
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<!DOCTYPE html>
<html>
<head>
<title>Socket.IO chat</title>
<style>
body {
margin: 0;
padding-bottom: 3rem;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
#form {
background: rgba(0, 0, 0, 0.15);
padding: 0.25rem;
position: fixed;
bottom: 0;
left: 0;
right: 0;
display: flex;
height: 3rem;
box-sizing: border-box;
backdrop-filter: blur(10px);
}
#question {
border: none;
padding: 0 1rem;
flex-grow: 1;
border-radius: 2rem;
margin: 0.25rem;
}
#answer {
border: none;
padding: 0 1rem;
flex-grow: .5;
border-radius: 2rem;
margin: 0.25rem;
}
#input:focus,
#name:focus {
outline: none;
}
#form>button {
background: #333;
border: none;
padding: 0 1rem;
margin: 0.25rem;
border-radius: 3px;
outline: none;
color: #fff;
}
#messages {
list-style-type: none;
margin: 0;
padding: 0;
}
#messages>li {
padding: 0.5rem 1rem;
}
#messages>li:nth-child(odd) {
background: #efefef;
}
#timer {
background: #333;
border: none;
padding: 0 1rem;
margin: 0.25rem;
border-radius: 3px;
outline: none;
color: #fff;
text-align: center;
line-height: 33px;
}
</style>
</head>
<body>
<ul id="messages"></ul>
<form id="form" action="">
<!-- <input id="input" autocomplete="off" placeholder="message" /><input id="name" placeholder="name" autocomplete="off" /><button>Send</button> -->
</form>
<script src="https://cdn.socket.io/4.5.4/socket.io.min.js"></script>
<script>
let socket = null
const form = document.getElementById('form');
const input = document.getElementById('input');
const name = document.getElementById('name');
const createQnA = (player) => {
if (player.isGameMaster) {
const question = document.createElement('input');
question.id = 'question';
question.placeholder = 'Create question';
question.name = 'question';
question.required = true;
const answer = document.createElement('input');
answer.id = 'answer';
answer.placeholder = 'What is the answer?';
answer.name = 'answer';
answer.required = true;
form.append(question)
form.append(answer)
const button = document.createElement('button');
button.innerText = 'Create question'
form.append(button);
const timer = document.createElement('p');
timer.id = 'timer'
timer.innerText = '60s'
form.append(timer);
} else {
const answer = document.createElement('input');
answer.id = 'answer';
answer.placeholder = 'What is the answer?';
answer.name = 'answer';
answer.required = true;
form.append(answer)
const button = document.createElement('button');
button.innerText = 'Guess the answer'
form.append(button);
const timer = document.createElement('p');
timer.id = 'timer'
timer.innerText = '60s'
form.append(timer);
}
}
const createChat = (event, message) => {
console.log('server_says', event)
const item = document.createElement('li');
item.textContent = message || event.message;
messages.appendChild(item);
window.scrollTo(0, document.body.scrollHeight);
}
window.addEventListener('load', () => {
localStorage.clear()
const name = prompt('Enter your name: ')
socket = io();
let player;
socket.emit('join', { event: 'join', data: { name } })
socket.on('join_error', function (data) {
if (!localStorage.getItem('player')) {
console.log('server_says', data)
window.alert(data.message)
location.reload();
}
})
socket.on('new_game_master', function (event) {
console.log('server_says', event)
const alreadyInGame = localStorage.getItem('player');
if (!alreadyInGame) return;
const players = event.data
const player = players.find(player => player.id === socket.id);
localStorage.setItem('player', JSON.stringify(player));
form.innerHTML = ''
createQnA(player);
if (player.isGameMaster) {
createChat(event, 'You are now the game master')
} else {
createChat(event)
}
})
socket.on('time', function (event) {
const timer = document.getElementById('timer')
timer.innerHTML = `${event.message}s`;
})
socket.on('general_message', function (event) {
createChat(event)
})
socket.on('time_expired', function (event) {
createChat(event)
})
socket.on('guess', function (event) {
createChat(event)
})
socket.on('question_created', function (event) {
createChat(event)
})
socket.on('player_joined', function (event) {
console.log('server_says', event)
createChat(event)
player = event.data.player;
const alreadyInGame = localStorage.getItem('player');
if (!alreadyInGame) {
localStorage.setItem('player', JSON.stringify(player));
}
if (!alreadyInGame) {
createQnA(player);
}
if (!player.isGameMaster && !alreadyInGame) {
createChat(event, `Welcome to the game "${event.data.player.name}"". Our Game Master "${event.data.gameMaster.name}" is creating a question`)
}
});
form.addEventListener('submit', function (e) {
e.preventDefault();
const question = document.getElementById('question');
const answer = document.getElementById('answer');
if (question && answer) {
const data = {
eventName: 'create_question',
question: question.value,
answer: answer.value
}
console.log('create_question', data);
socket.emit('create_question', data);
} else {
const data = {
eventName: 'guess_answer',
answer: answer.value
}
console.log('guess_answer', data);
socket.emit('guess_answer', data);
}
});
})
</script>
</body>
</html>