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hub.js
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hub.js
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var backend
var username
$(function() {
user = createButton("Set username");
user.click(function() {
setUsername();
});
user.css('float', 'left');
disconnect = createButton("Disconnect");
disconnect.click(function() {
sendToBackend("disconnect");
});
disconnect.css('margin', '0 20% 0 20%');
quit = createButton("Quit game");
quit.click(function() {
sendToBackend("start", "Launcher");
});
quit.css('float', 'right');
$("#game").before(user);
$("#game").before(disconnect);
$("#game").before(quit);
});
function createButton(text) {
button = $('<button></button>');
button.html(text);
button.css('width', '20%');
button.css('height', '75px');
button.css('font-weight', 'bold');
return button;
}
function addMessageHandler(callback) {
backend = new WebSocket('ws://' + window.location.hostname + ':3001/ws');
backend.onmessage = function(e) {
var msg = JSON.parse(e.data);
if (msg.action === "identify") {
if (!msg.data) {
var id = localStorage.getItem("id-gsusfcavf");
if (id == null) {
id = Math.random().toString(36).substring(7);
localStorage.setItem("id-gsusfcavf", id)
}
sendToBackend("identify", id);
} else if (msg.data === "ok") {
sendToBackend("get username", getId());
callback("identified");
} else {
var id = sessionStorage.getItem("id-gsusfcavf");
if (id == null) {
id = Math.random().toString(36).substring(7);
sessionStorage.setItem("id-gsusfcavf", id)
}
sendToBackend("identify", id);
}
} else if (msg.action === "redirect") {
var gameName = msg.data.toLowerCase()
if (document.location.href.indexOf(gameName) < 0) {
document.location.href = "/" + gameName;
}
} else if (msg.action === "set username") {
if (msg.data === "error") {
alert("Username already in use")
}
} else if (msg.action === "get username") {
username = msg.data[1];
} else {
callback(msg);
}
}
}
function sendToGame(action, data) {
send({
"to": "game",
"action": "pass through",
"data": {
"action": action,
"data": data
}
});
}
function sendToBackend(action, data) {
send({
"action": action,
"data": data
});
}
function send(json) {
if (backend) {
backend.send(JSON.stringify(json));
}
}
function getId() {
var id;
if (sessionStorage.getItem("id-gsusfcavf")) {
id = sessionStorage.getItem("id-gsusfcavf");
} else {
id = localStorage.getItem("id-gsusfcavf");
}
return id;
}
function setUsername() {
newUsername = prompt("Please enter your name", username);
if (newUsername == "" || newUsername == username || newUsername == null) {
return
}
username = newUsername;
sendToBackend("set username", username);
}