From 71f281b208e71014fa61c23a943b1b326272556e Mon Sep 17 00:00:00 2001 From: Holden Rohrer Date: Sat, 18 Jan 2020 17:26:33 -0500 Subject: jarvis externalized identify() --- utils/ident.js | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 utils/ident.js (limited to 'utils') diff --git a/utils/ident.js b/utils/ident.js new file mode 100644 index 0000000..6d18b88 --- /dev/null +++ b/utils/ident.js @@ -0,0 +1,29 @@ +// A portable script to find the sender when the server websocket opens (by cursor movement) + +module.exports = function identify(sock, initOnce, init){ + // `sock` should be Socket instance. + // initOnce and init should be functions that act like they describe; initOnce runs once per program execution and init whenever the socket turns back on + + sock.on('open', ()=>{ + // "Pings" the server with a cursor location which is detected and saved by identity() + let coords = [Math.floor(Math.random()*100000+16), Math.floor(Math.random()*1000000+16)]; + sock.cursor(coords); + sock.on('cursor', detect); + function detect(pos, send){ + if (vec.equals(pos[0],coords)){ + sock.off('cursor', detect); + identity(send); + } + } + } + + // Calls initOnce and init on successful identification. + let initialized = false; + function identity(send){ + if (! initialized){ + initialized = true; + initOnce(); + } + init(send); + } +} -- cgit