<?php
ini_set('display_errors', 'On');
require_once __DIR__ . '/../src/PerlinNoiseGenerator.php';
$gen = new MapGenerator\PerlinNoiseGenerator();
$size = 250;
$gen->setPersistence(0.78);
$gen->setSize($size);
$gen->setMapSeed('asd');
$map = $gen->generate();
$image = imagecreatetruecolor($size, $size);
$max = 0;
$min = PHP_INT_MAX;
for ($iy = 0; $iy < $size; $iy++) {
for ($ix = 0; $ix < $size; $ix++) {
$h = $map[$iy][$ix];
if ($min > $h) {
$min = $h;
}
if ($max < $h) {
$max = $h;
}
}
}
$diff = $max - $min;
for ($iy = 0; $iy < $size; $iy++) {
for ($ix = 0; $ix < $size; $ix++) {
$h = 255 * ($map[$iy][$ix] - $min) / $diff;
$color = imagecolorallocate($image, $h, $h, $h);
imagesetpixel($image, $ix, $iy, $color);
}
<?php
$start = microtime(true);
ini_set('display_errors', 'On');
require_once __DIR__ . '/../src/PerlinNoiseGenerator.php';
$gen = new MapGenerator\PerlinNoiseGenerator();
$memStart = memory_get_usage();
$gen->setPersistence(0.5);
$gen->setSize(1025);
$gen->setMapSeed('seed');
$gen->generate();
echo sprintf('Memory Peak Usage: %sMB', round(memory_get_peak_usage() / 1024 / 1024, 2)) . PHP_EOL;
echo sprintf('Memory Usage: %sMB', round((memory_get_usage() - $memStart) / 1024 / 1024, 2)) . PHP_EOL;
echo sprintf('Time: %s', round(microtime(true) - $start, 3)) . PHP_EOL;
