/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-3.0.0.js"></script>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>
  <script>
    /*
     * Author: Ivan Jiang
     *
     * A happy flappy bird built with HTML5 Canvas.
     *
     */
    var JS_FLAPPYBIRD = {};

    JS_FLAPPYBIRD = (function() {

      var ms          = 500,
          sceneHeight = 300,
          sceneWidth  = 200,
          blockSize   = 10,
          spaceHeight = 30;

      var context;

      var init = function() {
        var $canvas = $('<canvas id="flappybird" />')
                        .appendTo('body')
                        .attr('width', sceneWidth + 'px')
                        .attr('height', sceneHeight + 'px');
        var canvas  = $canvas[0];

        context = canvas.getContext('2d');

        context.fillStyle = '#97EFD5';    // May be a sexy color
        context.fillRect(0, (sceneHeight - blockSize) / 2, blockSize, blockSize);

        this.gameLoop(context);
      }

      var gameLoop = function() {

        var randomH = parseInt(Math.random() * sceneHeight),
            high    = randomH - spaceHeight / 2, // high point
            low     = randomH + spaceHeight / 2; // low point

        context.clearRect(0, 0, sceneWidth, sceneHeight);

        // Make a new wall from the right side.
        context.fillStyle = 'red';
        context.fillRect(sceneWidth - blockSize, 0, blockSize, high);
        context.fillRect(sceneWidth - blockSize, low, blockSize, sceneHeight - low);

        this.bird.draw(context);

        setTimeout(gameLoop, ms);
      }

      return {
        init: init,
        gameLoop: gameLoop,
        sceneHeight: sceneHeight,
        blockSize: blockSize,
      }
    })();

    JS_FLAPPYBIRD.bird = (function() {

      var blockSize = JS_FLAPPYBIRD.blockSize,
          sceneHeight = JS_FLAPPYBIRD.sceneHeight;

      var y = (sceneHeight - blockSize) / 2;

      var jump = function() {
        y += blockSize;
      };

      var draw = function(context) {
        --y;
        context.clearRect(0, 0, blockSize, sceneHeight);
      };
    })();

    JS_FLAPPYBIRD.init();
  </script>


</body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<script src="https://code.jquery.com/jquery-3.0.0.js"></script>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	</head>
	<body>
	<script>
	/*
	* Author: Ivan Jiang
	*
	* A happy flappy bird built with HTML5 Canvas.
	*
	*/
	var JS_FLAPPYBIRD = {};

	JS_FLAPPYBIRD = (function() {

	var ms = 500,
	sceneHeight = 300,
	sceneWidth = 200,
	blockSize = 10,
	spaceHeight = 30;

	var context;

	var init = function() {
	var $canvas = $('<canvas id="flappybird" />')
	.appendTo('body')
	.attr('width', sceneWidth + 'px')
	.attr('height', sceneHeight + 'px');
	var canvas = $canvas[0];

	context = canvas.getContext('2d');

	context.fillStyle = '#97EFD5'; // May be a sexy color
	context.fillRect(0, (sceneHeight - blockSize) / 2, blockSize, blockSize);

	this.gameLoop(context);
	}

	var gameLoop = function() {

	var randomH = parseInt(Math.random() * sceneHeight),
	high = randomH - spaceHeight / 2, // high point
	low = randomH + spaceHeight / 2; // low point

	context.clearRect(0, 0, sceneWidth, sceneHeight);

	// Make a new wall from the right side.
	context.fillStyle = 'red';
	context.fillRect(sceneWidth - blockSize, 0, blockSize, high);
	context.fillRect(sceneWidth - blockSize, low, blockSize, sceneHeight - low);

	this.bird.draw(context);

	setTimeout(gameLoop, ms);
	}

	return {
	init: init,
	gameLoop: gameLoop,
	sceneHeight: sceneHeight,
	blockSize: blockSize,
	}
	})();

	JS_FLAPPYBIRD.bird = (function() {

	var blockSize = JS_FLAPPYBIRD.blockSize,
	sceneHeight = JS_FLAPPYBIRD.sceneHeight;

	var y = (sceneHeight - blockSize) / 2;

	var jump = function() {
	y += blockSize;
	};

	var draw = function(context) {
	--y;
	context.clearRect(0, 0, blockSize, sceneHeight);
	};
	})();

	JS_FLAPPYBIRD.init();
	</script>


	</body>
	</html>