jakewendt.github.com/grid.html at master · jakewendt/jakewendt.github.com · GitHub

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Cube</title>
<style>
div#cube {
	margin: 0 auto;
}
div#cube table {
	margin: 0 auto;
}
div#cube table tbody tr td {
	border:1px solid black;
	width: 100px;
	height: 100px;
	text-align:center;
	font-size:28px;
}
div#cube table tbody tr:first-child td,
div#cube table tbody tr td:first-child,
div#cube table tbody tr td:last-child,
div#cube table tbody tr:last-child td {
	background-color: #EEE;
}
div#cube table tbody tr:first-child td:first-child,
div#cube table tbody tr:first-child td:last-child,
div#cube table tbody tr:last-child td:first-child,
div#cube table tbody tr:last-child td:last-child {
	visibility: hidden;
}
div#cube p {
	text-align: center;
}
div#cube p button {
	font-size: 40px;
}
</style>
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
//<![CDATA[

var cells = [];
var cols;
var rows;

var color = function(){
	for( var y=1; y<=rows; y++ ) {
		for( var x=1; x<=cols; x++ ) {
			$("div#cube table tbody tr td.row"+y+".col"+x).css( 'background-color', cells[y-1][x-1] );
		}
	}
}
var rotate_row_right = function(row){
	cells[row].unshift( cells[row].pop() );
	color();
};
var rotate_row_left = function(row){
	cells[row].push( cells[row].shift() );
	color();
};
var rotate_column_up = function(column){
	tmp=cells[0][column];
	for( var c=0; c<(rows-1); c++){
		cells[c][column]=cells[c+1][column];
	}
	cells[rows-1][column]=tmp
	color();
};
var rotate_column_down = function(column){
	tmp=cells[rows-1][column];
	for( var c=rows-1; c>0; c--){
		cells[c][column]=cells[c-1][column];
	}
	cells[0][column]=tmp
	color();
};
var scramble = function(){
	for( var i=0; i<20; i++ ){
		f=parseInt(Math.random()*4);
		switch (f) {
			case 0:
				rotate_row_right( parseInt(Math.random()*rows) );
				break;
			case 1:
				rotate_row_left( parseInt(Math.random()*rows) );
				break;
			case 2:
				rotate_column_up( parseInt(Math.random()*cols) );
				break;
			case 3:
				rotate_column_down( parseInt(Math.random()*cols) );
				break;
		}
	}
}

var colors = ['red','yellow','blue','orange','green'];

$(function(){

	//	http://www.developerdrive.com/2013/08/turning-the-querystring-into-a-json-object-using-javascript/
	var pairs = location.search.slice(1).split('&');
	var result = {};
	pairs.forEach(function(pair) {
		pair = pair.split('=');
		result[pair[0]] = decodeURIComponent(pair[1] || '');
	});

	cols = parseInt( (result['cols'] || 3), 10);
	rows = parseInt( (result['rows'] || 4), 10);

	for( var y=0; y<rows; y++ ) {
		cells[y]=[];
		for( var x=0; x<cols; x++ ) {
			cells[y][x]=colors[y];
		}
	}

	for( var y=0; y<(rows+2); y++ ) {
		s="<tr class='row"+y+"'>";
		for( var x=0; x<(cols+2); x++ ) {
			s+="<td class='row"+y+" col"+x+"'>&nbsp;</td>";
		}
		s+="</tr>";
		$('div#cube table tbody').append(s);
		color();
	}
	$("div#cube button#scramble").click( scramble );

	for( var y=0; y<(rows+2); y++ ) {
		for( var x=0; x<(cols+2); x++ ) {
			if( y==0 && x>0 && x<(cols+1) ){
				$("div#cube table tbody tr td.row"+y+".col"+x).text( "^" );
				$("div#cube table tbody tr td.row"+y+".col"+x).click({ row: y, column: x }, function(e){
					rotate_column_up( e.data.column - 1 );
				});
			} else if( y==(rows+1) && x>0 && x<(cols+1) ){
				$("div#cube table tbody tr td.row"+y+".col"+x).text( "v" );
				$("div#cube table tbody tr td.row"+y+".col"+x).click({ row: y, column: x }, function(e){
					rotate_column_down( e.data.column - 1 );
				});
			} else if( x==0 && y>0 && y<(rows+1) ){
				$("div#cube table tbody tr td.row"+y+".col"+x).text( "<" );
				$("div#cube table tbody tr td.row"+y+".col"+x).click({ row: y, column: x }, function(e){
					rotate_row_left( e.data.row - 1 );
				});
			} else if( x==(cols+1) && y>0 && y<(rows+1) ){
				$("div#cube table tbody tr td.row"+y+".col"+x).text( ">" );
				$("div#cube table tbody tr td.row"+y+".col"+x).click({ row: y, column: x }, function(e){
					rotate_row_right( e.data.row - 1 );
				});
			}
		}
	}
});

//]]>
</script>
</head>
<body>
<div id='cube'>
<table><tbody></tbody></table>
<p><button id='scramble'>Scramble</button></p>

<form>
<p><label for='rows'>Rows</label>
<select name='rows'>
  <option>2</option>
  <option selected='selected'>3</option>
  <option>4</option>
  <option>5</option>
</select></p>
<p><label for='cols'>Columns</label>
<select name='cols'>
  <option>2</option>
  <option selected='selected'>3</option>
  <option>4</option>
  <option>5</option>
</select></p>
<p><input type='submit' value='Resize and Restart'/></form></p>

</div>
</body>
</html>