+<!DOCTYPE html>
+<html>
+
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>ZOMBO</title>
+ <link href="/zombo.css" rel="stylesheet" type="text/css">
+ <meta name="viewport" content="width=device-width,initial-scale=1">
+ <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
+ <meta name="HandheldFriendly" content="true">
+
+ <style>
+ @keyframes zoom {
+ from {
+ opacity: 100%;
+ transform: scale(1);
+ }
+ to {
+ opacity: 0%;
+ transform: scale(30);
+ }
+ }
+ .zoom-into {
+ animation-name: zoom;
+ animation-duration: 2s;
+ animation-timing-function: ease-in;
+ animation-fill-mode: forwards;
+ }
+ @keyframes fade {
+ from {
+ opacity: 100%;
+ }
+ to {
+ opacity: 0%;
+ }
+ }
+ .fade-out {
+ animation-name: fade;
+ animation-duration: 0.8s;
+ animation-timing-function: ease-in;
+ animation-fill-mode: forwards;
+ }
+ #welcome {
+ position: fixed;
+ width: 100%;
+ top: 50%;
+ left: 50%;
+ transform: translate(-50%, -50%);
+ }
+ #game {
+ position: relative;
+ }
+ #word {
+ text-align: center;
+ font-size: 400%;
+ font-weight: bold;
+ }
+ #interface {
+ width: 100%;
+ }
+ #input {
+ display: block;
+ margin-left: auto;
+ margin-right: auto;
+ width: 60%;
+ font-size: 200%;
+ border-width: 5px;
+ }
+ #jumpstart {
+ position: fixed;
+ right: 5px;
+ bottom: 5px;
+ }
+ #welcome-message {
+ font-size: 120%;
+ font-weight: bold;
+ text-align: center;
+ }
+ #result {
+ position: fixed;
+ width: 100%;
+ top: 50%;
+ left: 50%;
+ transform: translate(-50%, -50%);
+ font-size: 500%;
+ text-align: center;
+ }
+ #form {
+ width: 100%;
+ }
+ #code {
+ width: 95%;
+ }
+ #output {
+ width: 100%;
+ }
+ </style>
+</head>
+
+<body>
+ <div id="content">
+
+ <div id="welcome" style="visibility: hidden">
+ <div id="header" align="center">
+ <p>
+ <img src="images/1403010940_The_Magic_School_Bus_in_the_apocalypse.png">
+ </p>
+ </div>
+
+ <div id="welcome-message">
+ <div id="timer_div" style="visibility: hidden">
+ Entering Magic School Bus in <span id="timer"></span> seconds.
+ </div>
+ <br>
+ Students present: <span id="students">1</span>/4
+ </div>
+ </div>
+
+ <div id="program" style="visibility: hidden">
+ <h1>
+ Magic School Bus Central Processor
+ </h1>
+ <form id="form">
+ <textarea id="code" rows="10" width="100%">t.forward(100);
+t.right(90);
+t.forward(100);
+ </textarea>
+ <button type="submit">Run code</button>
+ </form>
+ <img id="output"></img>
+ </div>
+
+ <button id="jumpstart">
+ Jumpstart Magic School Bus
+ </button>
+
+ </div>
+
+ <script src="/socket.io/socket.io.js"></script>
+ <script>
+ const socket = io("/bus");
+
+ const welcome = document.getElementById("welcome");
+ const program = document.getElementById("program");
+ const header = document.getElementById("header");
+ const companions = document.getElementById("students");
+ const timer_div = document.getElementById("timer_div");
+ const timer = document.getElementById("timer");
+ const form = document.getElementById("form");
+ const code = document.getElementById("code");
+ const welcome_message = document.getElementById("welcome-message");
+ const jumpstart = document.getElementById("jumpstart");
+ const output = document.getElementById("output");
+
+ function fade_element(elt) {
+ elt.style.opacity = "100%";
+ elt.className = "fade-out";
+ // Arrange to clear the class name when the animation is over
+ // This will allow for it to be restarted on the next word.
+ setTimeout(() => {
+ elt.style.opacity = "0%";
+ elt.className = "";
+ }, 900);
+ }
+
+ jumpstart.addEventListener('click', event => {
+ socket.emit('jumpstart');
+ });
+
+ form.addEventListener('submit', event => {
+ event.preventDefault();
+ console.log("Submitted form with code: " + code.value);
+ socket.emit('run', code.value);
+ });
+
+ socket.on('students', (count) => {
+ students.textContent = count.toString();
+ });
+
+ socket.on('timer', (value) => {
+ timer_div.style.visibility = "visible";
+ timer.textContent = value.toString();
+
+ if (value === 0) {
+ welcome_message.style.visibility = "hidden";
+ timer_div.style.visibility = "hidden";
+ header.className = "zoom-into";
+ // Clear that className after the animation is complete
+ setTimeout(() => {
+ header.style.visibility = "hidden"
+ header.className = "";
+ }, 2200);
+ }
+ });
+
+ socket.on('state', (state) => {
+ if (state === "program") {
+ welcome.style.visibility = "hidden";
+ program.style.visibility = "visible";
+ } else if (state === "welcome") {
+ welcome.style.visibility = "visible";
+ welcome_message.style.visibility = "visible";
+ header.style.opacity = "100%";
+ header.style.transform = "scale(1)";
+ header.style.visibility = "visible";
+ program.style.visibility = "hidden";
+ output.src = "";
+ }
+ });
+
+ socket.on('output', (filename) => {
+ output.src = filename;
+ });
+
+ </script>
+</body>
+</html>