A (moderately) simple p5.js library for connecting to websocket servers like the one at https://p5-websocket.glitch.me/.
There's an example sketch at examples/sketch.js
First, download dist/p5.websocket.min.js and add it to your sketch's index.html file or use a CDN (content delivery network) to get the code straight from GitHub:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<script src="https://cdn.jsdelivr.net/npm/[email protected]/lib/p5.js"></script>
<script src="https://cdn.jsdelivr.net/gh/abachman/p5.websocket/dist/p5.websocket.min.js"></script>
<script src="sketch.js"></script>
</head>
<body></body>
</html>A simple sketch that communicates with other sketches must include at least three things, a single call to connectWebsocket in the sketch setup, a user defined function messageReceived, and calls to sendMessage wherever you want your sketch to send data.
let myColor = [100, 100, 100];
function setup() {
createCanvas(200, 200);
noStroke();
// connect to the chat.reasonable.systems p5 websocket server on the channel
// named "p5.websocket-example". Every sketch on the same channel will get
// messages from this sketch.
connectWebsocket("wss://chat.reasonable.systems/p5.websocket-example");
}
function draw() {
background(255);
fill(myColor);
ellipse(width / 2, height / 2, width);
}
function mousePressed() {
// send a message on the connected channel
sendMessage({ color: [random(255), random(255), random(255)] });
}
// receive a message on the connected channel
function messageReceived(data) {
myColor = data.color;
}You can play with a copy of this sketch here.
connectWebsocket(url, options)
sendMessage(message)
NOTE: uid in the functions below is the unique ID assigned to a given connection by p5-websocket-server.
onConnection(uid) when this sketch has finished connecting. The uid received is this sketch's own.
onDisconnection when this sketch has finished disconnecting. Usually only if the websocket server restarts or internet goes in-and-out.
connectReceived(uid) when another session connects.
disconnectReceived(uid) when another session disconnects.
messageReceived(data, uid) when a message is received from a session. If config includes { echo: true } (the default) then the given sketch will receive its own messages.
Clone this repository and run yarn install.
Then run yarn dev.
Serve example-dist/ as static.
Check out the p5.websocket reference server.
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