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for finding and fixing issues
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<?php
namespace JMGQ\AStar\Benchmark;
use JMGQ\AStar\Example\Terrain\TerrainCost;
class TerrainGenerator
{
public function generate(int $rows, int $columns, ?int $seed = null): TerrainCost
$this->validatePositiveInteger($rows);
$this->validatePositiveInteger($columns);
$seed !== null ? mt_srand($seed) : mt_srand();
$terrainCost = [];
foreach (range(0, $rows - 1) as $row) {
foreach (range(0, $columns - 1) as $column) {
$terrainCost[$row][$column] = mt_rand(1, 10);
}
return new TerrainCost($terrainCost);
private function validatePositiveInteger(int $number): void
if ($number < 1) {
throw new \InvalidArgumentException("Invalid positive integer: $number");
jmgq /
php-a-star
