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visual.php
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visual.php
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<?php
/**
* (The MIT license)
* Copyright 2017 clickalicious, Benjamin Carl
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
require_once __DIR__ . '/vendor/autoload.php';
// Clean config
define('RNG_VISUAL_ITERATIONS', 100000);
// We generate a visual representation/demo of randomness for this implementations (PNG)
header('Content-type: image/png');
// Dimension of one tile
$width = 800;
$height = 800;
// Our generators
$generators = [
new \Clickalicious\Rng\Generator(\Clickalicious\Rng\Generator::MODE_PHP_DEFAULT),
new \Clickalicious\Rng\Generator(\Clickalicious\Rng\Generator::MODE_PHP_MERSENNE_TWISTER),
new \Clickalicious\Rng\Generator(\Clickalicious\Rng\Generator::MODE_OPEN_SSL),
];
$countGenerators = count($generators);
// Complete width for all generators
$totalWidth = $countGenerators * $width;
$img = imagecreatetruecolor(count($generators) * $width, $height);
imagefilledrectangle($img, 0, 0, $totalWidth, $height, imagecolorallocate($img, 255, 255, 255));
// Iterate and draw
for ($i = 0; $i < $countGenerators; ++$i) {
$color = imagecolorallocate($img, 0, 0, 0);
$p = 0;
for ($j = 0; $j < RNG_VISUAL_ITERATIONS; ++$j) {
$np = $generators[$i]->generate(0, $width);
imagesetpixel($img, $p + ($width * $i), $np, $color);
$p = $np;
}
}
imagepng($img);
imagedestroy($img);