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'use strict';
const VALID_EVENTS = ["error", "closed", "handshake", "lobby", "game", "chat", "ping"];
// A wrapper around the wrapper
class SockWorker extends EventTarget{
constructor (serveraddr, version)
{
super();
this.server = serveraddr;
this.version = version;
this.handshake = true;
}
// Initialize the connection.
init () {
this.handshake = true;
if(this.server == "" || this.server == null) {
return;
}
if(this.socket != null) {
this.socket.close();
}
try {
this.socket = new WebSocket(this.server);
this.socket.addEventListener("open", this.o.bind(this));
this.socket.addEventListener("message", this.msg.bind(this));
this.socket.addEventListener("closed", this.c.bind(this));
this.socket.addEventListener("error", this.err.bind(this));
} catch (e) {
this.err();
}
}
// Called when the connection connects to the server
o () {
this.send("version", this.version);
}
// Called when the connection gets a message from the server
// Attempts to turn the message into a usable object and pass it to the callback
msg (e) {
if(typeof e.data == "string") {
let dat = JSON.parse(e.data);
if (this.handshake) {
if (dat.type == "ready")
this.handshake = false;
this.dispatchEvent(new CustomEvent("handshake", {detail: dat}));
return;
}
if (VALID_EVENTS.includes(dat.type))
this.dispatchEvent(new CustomEvent(dat.type, {detail: dat.data}));
}
}
// Called when the connection closes.
// Passes a close object to the callback.
c () {
this.dispatchEvent(new Event("closed"));
}
// Called when the connection encounters an error.
// Passes an error to the callback
err () {
this.dispatchEvent(new Event("error"));
}
// Call to close the connection to the server
close () {
this.socket.close();
}
// Send a message to the server
send (type, data) {
let m = new Message(type, data);
this.socket.send(m.stringify())
}
// Raw message the server
sendRaw (s) {
this.socket.send(s)
}
}
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