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