229 lines
8.4 KiB
HTML
229 lines
8.4 KiB
HTML
<!doctype html>
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<html lang="en-us">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>Minetest for the Web</title>
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</head>
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<body style="background-color: black">
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<div id="temporary_console" class="console" style="color: white"></div>
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<div id="launch_form" class="console" style="color: white; display: none;">
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<hr>
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<b>Select Network Proxy:</b>
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<select id="select_proxy">
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<!-- filled by javascript -->
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</select>
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<hr>
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<button id="launch" style="width: 300px; height: 50px; font-size: 20pt;">Launch Minetest</button>
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<br/>
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<hr>
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<b style="font-size: 20pt;">Run Server In Browser</b>
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<br/>
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<b>Player Name:</b>
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<input style="border: 2px solid black; width: 400px; height: 2em" type="text" id="multiplayer_username" required="" pattern="[A-Za-z0-9_-]{1,20}" maxlength="19" title="Alphanumeric, 19 characters max">
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<br/>
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<b>Game:</b>
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<select id="multiplayer_game">
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<option value="minetest_game">minetest_game</option>
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</select>
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<br/>
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<span>After launch, copy the URL and use it to open clients.</span>
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<br/>
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<span>Closing this page shuts down the server and ends the game.</span>
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<br/>
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<button id="launch_server" style="width: 300px; height: 50px; font-size: 20pt;">Launch Server</button>
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</div>
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<div id="join_form" class="console" style="color: white; display: none;">
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<b>Joining game:</b>
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<br/>
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<b>Player Name:</b>
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<input style="border: 2px solid black; width: 400px; height: 2em" type="text" id="join_username" required="" pattern="[A-Za-z0-9_-]{1,20}" maxlength="19" title="Alphanumeric, 19 characters max">
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<br/>
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<button id="join_launch">Join Game</button>
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</div>
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<script type="text/javascript" src="wasm/launcher.js"></script>
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<script type="text/javascript">
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// Reduce memory and network usage
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const memorySavingConfig = `
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viewing_range = 85
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max_block_send_distance = 5
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max_block_generate_distance = 5
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`;
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const launchForm = document.getElementById('launch_form');
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const joinForm = document.getElementById('join_form');
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const tcon = document.getElementById('temporary_console');
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function tcon_print(prefix, line) {
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if (prefix) {
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for (child of tcon.childNodes) {
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if (child.nodeName == 'PRE' && child.innerText.startsWith(prefix)) {
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child.innerText = prefix + line;
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return;
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}
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}
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}
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const p = document.createElement('pre');
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p.innerText = prefix + line;
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tcon.appendChild(p);
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}
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function wipePage() {
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launchForm.remove();
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joinForm.remove();
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tcon.remove();
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}
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function enableLaunchForm() {
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if (join_code) {
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joinForm.style.display = 'block';
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} else {
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launchForm.style.display = 'block';
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}
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const select_proxy = document.getElementById('select_proxy');
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const proxies = [
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[ "ws://127.0.0.1:8080/proxy" ]
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];
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proxies.forEach((entry, index) => {
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const opt = document.createElement('option');
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opt.value = index;
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opt.innerText = entry[1];
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select_proxy.appendChild(opt);
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});
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const launch = document.getElementById('launch');
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launch.addEventListener('click', () => {
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const proxyIndex = document.getElementById('select_proxy').value;
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const proxy = proxies[proxyIndex][0];
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wipePage();
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mtl.setProxy(proxy);
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mtl.launch(args);
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});
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const launchServer = document.getElementById('launch_server');
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launchServer.addEventListener('click', async () => {
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const proxyIndex = document.getElementById('select_proxy').value;
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const username = document.getElementById('multiplayer_username').value;
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const game = document.getElementById('multiplayer_game').value;
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if (username.length == 0) {
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alert("Empty username");
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return;
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}
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wipePage();
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const proxy = proxies[proxyIndex][0];
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mtl.setProxy(proxy);
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mtl.addPack(game);
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const [cmd, serverCode, clientCode] = await queryProxy(`MAKEVPN ${game}`, proxy);
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if (cmd != 'NEWVPN') {
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alert("Invalid response from proxy");
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return;
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}
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const args = new MinetestArgs();
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args.extra.push('--withserver');
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args.gameid = game;
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args.name = username;
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args.address = '127.0.0.1';
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args.port = 30000;
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args.go = true;
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history.pushState({}, "", `?proxy=${proxyIndex}&game=${game}&join=${clientCode}`);
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mtl.setVPN(serverCode, clientCode);
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mtl.setMinetestConf(memorySavingConfig);
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mtl.launch(args);
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});
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const joinLaunch = document.getElementById('join_launch');
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joinLaunch.addEventListener('click', async () => {
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const username = document.getElementById('join_username').value;
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if (username.length == 0) {
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alert("Empty username");
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return;
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}
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wipePage();
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mtl.setProxy(proxies[join_proxy][0]);
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mtl.addPack(join_game);
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const args = new MinetestArgs();
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args.gameid = join_game;
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args.name = username;
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args.address = '172.16.0.1';
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args.port = 30000;
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args.go = true;
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mtl.setVPN(null, join_code);
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mtl.setMinetestConf(memorySavingConfig);
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mtl.launch(args);
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});
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}
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function queryProxy(cmd, proxy) {
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return new Promise((resolve, reject) => {
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let finished = false;
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const ws = new WebSocket(proxy);
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ws.addEventListener('open', (event) => {
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ws.send(cmd);
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});
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ws.addEventListener('error', (event) => {
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alert('Error initiating proxy connection');
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finished = true;
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reject(new Error('Received error'));
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});
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ws.addEventListener('close', (event) => {
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if (!finished) {
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alert('Proxy connection closed unexpectedly');
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finished = true;
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reject(new Error('Received close'));
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}
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});
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ws.addEventListener('message', (event) => {
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if (typeof event.data !== 'string') {
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alert('Invalid message received from proxy');
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finished = true;
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reject(new Error('Invalid message'));
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return;
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}
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finished = true;
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ws.close();
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resolve(event.data.split(' '));
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});
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});
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}
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let join_code = null;
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let join_proxy = null;
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let join_game = null;
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const peek_params = new URLSearchParams(window.location.search);
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if (peek_params.has("join")) {
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join_code = peek_params.get("join");
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join_game = peek_params.get("game");
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join_proxy = peek_params.get("proxy");
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}
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const args = MinetestArgs.fromQueryString(window.location.search);
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tcon_print("", "Minetest Arguments: " + JSON.stringify(args.toArray(), null, ' '));
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tcon_print("", "Data Packs: " + JSON.stringify(args.packs, null, ' '));
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const mtl = new MinetestLauncher();
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mtl.addPacks(args.packs);
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mtl.onprint = (text) => {
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tcon_print("", text);
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};
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mtl.onprogress = (name, progress) => {
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const prefix = `Task ${name} : `;
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const pct = `${Math.round(progress * 100)}%`;
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tcon_print(prefix, pct);
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};
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mtl.onready = () => {
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tcon_print("", "READY!");
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enableLaunchForm();
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};
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mtl.onerror = (err) => {
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tcon_print("", "**************** FATAL ERROR ******************");
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tcon_print("", err);
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tcon_print("", "***********************************************");
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};
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</script>
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</body>
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</html>
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