sanaerosen/jsbin.oWOfadIM.html

## jsbin.oWOfadIM.html
<meta name="description" content="Blinkenlights" />
<html>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
  <script src="http://blinken.eecs.umich.edu/client.js"></script>
<body></body>
</html>

## jsbin.oWOfadIM.js

(new Blinken()).run(function () {
    var x = 0;
    var d = 1;
    var period = 11;
    var slowdown = 5;

    var range = function(x, period, start, end, i) {
      var i_adjusted = mod(i - x, period);
      if (i_adjusted > start && i_adjusted < end) {
        return true;
      }
      return false;

    };

    var mod = function (n, m) {
      return (n + m) % m;
    };

    // Update lights one frame
    return function (lights) {
        var y = x/slowdown;
        for (i = 0; i < lights.length; i++) {
          if (range(y, period, 2, 5, i)) {
                lights[i].rgb(0, 1, 0);
          } else if (range(y, period, 0,7, i)) {
                lights[i].rgb(1, 0, 0);
            } else {
                lights[i].rgb(1, 1, 1);
            }
        }

        x += d;

        if (x == slowdown*period){
          x = 0;
        }
        return 50; // ms until called again
    };
});
	<meta name="description" content="Blinkenlights" />
	<html>
	<script src="http://code.jquery.com/jquery-latest.js"></script>
	<script src="http://blinken.eecs.umich.edu/client.js"></script>
	<body></body>
	</html>

	(new Blinken()).run(function () {
	var x = 0;
	var d = 1;
	var period = 11;
	var slowdown = 5;

	var range = function(x, period, start, end, i) {
	var i_adjusted = mod(i - x, period);
	if (i_adjusted > start && i_adjusted < end) {
	return true;
	}
	return false;

	};

	var mod = function (n, m) {
	return (n + m) % m;
	};

	// Update lights one frame
	return function (lights) {
	var y = x/slowdown;
	for (i = 0; i < lights.length; i++) {
	if (range(y, period, 2, 5, i)) {
	lights[i].rgb(0, 1, 0);
	} else if (range(y, period, 0,7, i)) {
	lights[i].rgb(1, 0, 0);
	} else {
	lights[i].rgb(1, 1, 1);
	}
	}

	x += d;

	if (x == slowdown*period){
	x = 0;
	}
	return 50; // ms until called again
	};
	});