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<?php
declare(strict_types=1);
namespace AlecRabbit\Spinner\Core\Revolver;
use AlecRabbit\Spinner\Contract\IFrame;
use AlecRabbit\Spinner\Contract\IInterval;
use AlecRabbit\Spinner\Core\Contract\IFrameCollection;
use AlecRabbit\Spinner\Core\Contract\ITolerance;
use AlecRabbit\Spinner\Core\Revolver\A\ARevolver;
use AlecRabbit\Spinner\Core\Revolver\Contract\IFrameCollectionRevolver;
use AlecRabbit\Spinner\Exception\InvalidArgument;
final class FrameCollectionRevolver extends ARevolver implements IFrameCollectionRevolver
{
protected int $count = 0;
protected int $offset = 0;
/**
* @throws InvalidArgument
*/
public function __construct(
protected IFrameCollection $frameCollection,
IInterval $interval,
ITolerance $tolerance,
) {
parent::__construct($interval, $tolerance);
$this->count = $this->frameCollection->count();
$this->assertIsNotEmpty();
}
protected function assertIsNotEmpty(): void
if ($this->count === 0) {
throw new InvalidArgument('Frame collection is empty.');
protected function next(?float $dt = null): void
if ($this->count === 1 || ++$this->offset === $this->count) {
$this->offset = 0;
protected function current(): IFrame
return $this->frameCollection->get($this->offset);
alecrabbit /
php-console-spinner
