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<?php
declare(strict_types = 1);
namespace BaconQrCode\Renderer\Module\EdgeIterator;
final class Edge
{
/**
* @var bool
*/
private $positive;
/**
* @var array<int[]>
*/
private $points = [];
/**
* @var array<int[]>|null
*/
private $simplifiedPoints;
/**
* @var int
*/
private $minX = PHP_INT_MAX;
/**
* @var int
*/
private $minY = PHP_INT_MAX;
/**
* @var int
*/
private $maxX = -1;
/**
* @var int
*/
private $maxY = -1;
public function __construct(bool $positive)
{
$this->positive = $positive;
}
public function addPoint(int $x, int $y) : void
{
$this->points[] = [$x, $y];
$this->minX = min($this->minX, $x);
$this->minY = min($this->minY, $y);
$this->maxX = max($this->maxX, $x);
$this->maxY = max($this->maxY, $y);
}
public function isPositive() : bool
{
return $this->positive;
}
/**
* @return array<int[]>
*/
public function getPoints() : array
{
return $this->points;
}
public function getMaxX() : int
{
return $this->maxX;
}
public function getSimplifiedPoints() : array
{
if (null !== $this->simplifiedPoints) {
return $this->simplifiedPoints;
}
$points = [];
$length = count($this->points);
for ($i = 0; $i < $length; ++$i) {
$previousPoint = $this->points[(0 === $i ? $length : $i) - 1];
$nextPoint = $this->points[($length - 1 === $i ? -1 : $i) + 1];
$currentPoint = $this->points[$i];
if (($previousPoint[0] === $currentPoint[0] && $currentPoint[0] === $nextPoint[0])
|| ($previousPoint[1] === $currentPoint[1] && $currentPoint[1] === $nextPoint[1])
) {
continue;
}
$points[] = $currentPoint;
}
return $this->simplifiedPoints = $points;
}
}
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