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<?php |
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/** |
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* (c) 2018 Douglas Reith. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Reith\ToyRobot\Messaging\Command; |
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use Assert\Assertion; |
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class PlaceRobot |
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{ |
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private $coordinates; |
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private $direction; |
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/** |
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* @param array $coordinates |
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* @param string $direction |
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*/ |
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public function __construct(array $coordinates, string $direction) |
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{ |
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$this->setCoordinates($coordinates); |
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$this->setDirection($direction); |
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} |
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/** |
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* @param array $coordinates |
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*/ |
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private function setCoordinates(array $coordinates): void |
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{ |
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// Sanitize command input, ensure |
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// int[] |
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$this->coordinates = array_map( |
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function ($coord) { |
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Assertion::numeric($coord); |
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return (int) $coord; |
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}, |
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$coordinates |
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); |
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} |
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/** |
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* @param string $direction |
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*/ |
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private function setDirection(string $direction): void |
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{ |
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// Sanitize direction, 1 char capital |
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$direction = strtoupper(trim($direction)); |
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Assertion::length($direction, 1); |
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Assertion::choice($direction, ['N', 'E', 'S', 'W']); |
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$this->direction = $direction; |
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} |
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public function getCoordinates(): array |
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{ |
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return $this->coordinates; |
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} |
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public function getDirection(): string |
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{ |
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return $this->direction; |
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} |
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} |
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reithbot /
toyrobot-php
