jsconf-2013-nodebot/index.html at master · jmoore6364/jsconf-2013-nodebot · GitHub

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<html>
<head>
    <script src="/socket.io/socket.io.js"></script>
    <script>
        var socket = io.connect('http://172.20.41.105');
    </script>
</head>
<body ontouchstart="touchstart(event)" ontouchmove="touchstart(event)">

<script>

    //    document.body.addEventListener('touchstart', touchstart);
    //    document.body.addEventListener('touchmove', touchstart);

//    var map = {
//        "10": function () {
//            socket.emit('forward');
//        },
//        "12": function () {
//            socket.emit('backward');
//        },
//        "11": function () {
//            socket.emit('stop');
//        },
//        "01": function () {
//            socket.emit('hardLeft');
//        },
//        "00": function () {
//            socket.emit('left');
//        },
//        "02": function () {
//            socket.emit('hardLeft');
//        },
//        "20": function () {
//            socket.emit('right');
//        },
//        "22": function () {
//            socket.emit('right');
//        },
//        "21": function () {
//            socket.emit('right');
//        }
//    };


    function touchstart(event) {
        [].slice.call(event.changedTouches).forEach(function (t) {
            if (t.identifier === 0) {
                var seg = fn(t.screenX, t.screenY);
                document.getElementById("output").innerHTML = seg.x + " - " + seg.y;
                socket.emit('move',seg);
            }
        });
    }

    function touchTranslator(rect, q) {
        return cvt;

        function cvt(x, y) {
            var point = {
                x: (x - rect.left) / (rect.right - rect.left),
                y: (y - rect.top) / (rect.bottom - rect.top)
            };

            if (q) {
                point.x = q * point.x | 0;
                point.y = q * point.y | 0;
            }

            return point;
        }
    }
    var fn = touchTranslator({
        top: 0, left: 0,
        bottom: screen.height, right: screen.width
    }, 3);
</script>
<div id="output"></div>
</body>
</html>