glow-bitcoin.js

var SocketClient = require('websocket').client;
var client = new SocketClient();
var satoshi = 100000000;
var piGlow = require('piglow');
var animation = require('piglow-animations').animation;
console.log('whiskers75\'s PiGlow Bitcoin Script');
console.log('http://whiskers75.co.uk');
piGlow(function(e, pie) {
    if (e) throw e;
    function fade(target, interval) {
        for (x = 10; x < 150; x = x + interval) {
            pie[target] = x;
        }
        for (x = 150; x > 10; x = x - interval) {
            pie[target] = x;
        }
        pie[target] = 0;
    };
    pie.all = 0;
    client.on('connectFailed', function(err) {
        throw err;
    });
    client.on('connect', function(ws) {
        console.log('[' + Date() + '] Connected to blockchain.info');
        function send(o) {
            ws.sendUTF(JSON.stringify(o));
        }
        ws.on('message', function(msg) {
            msg = JSON.parse(msg.utf8Data);
            if (msg.op == 'utx') {
                var totalTransacted = 0;
                msg.x.out.forEach(function(output) {
                    totalTransacted = totalTransacted + output.value;
                });
                totalTransacted = Number((totalTransacted / satoshi).toFixed(2));
                if (totalTransacted < 0.01) return;
                console.log('[' + Date() + '] ' + totalTransacted + '฿ transacted - http://blockchain.info/tx/' + msg.x.hash);
                if (totalTransacted < 1) return fade('ring_0', 4);
                if (totalTransacted < 10) return fade('ring_1', 3);
                if (totalTransacted < 20) return fade('ring_2', 3);
                if (totalTransacted < 40) return fade('ring_3', 2);
                if (totalTransacted < 80) return fade('ring_4', 2);
                if (totalTransacted < 160) return fade('ring_5', 1);
            }
            if (msg.op == 'block') {
                console.log('### BLOCK #' + msg.x.blockIndex + ' ###');
                return fade('all', 0.5);
            }
        });
        send({'op': 'unconfirmed_sub'});
        send({'op': 'blocks_sub'});
    });
    client.connect('ws://ws.blockchain.info/inv');
});