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<?php |
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namespace Kata\Rover; |
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final class Map |
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{ |
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private $max_coordinates; |
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private $obstacles; |
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public function __construct(Coordinates $max_coordinates, array $some_obstacles) |
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{ |
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$this->max_coordinates = $max_coordinates; |
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$this->obstacles = $this->normalize($some_obstacles); |
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} |
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public function obstacles(): array |
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{ |
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return $this->obstacles; |
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} |
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private function normalize(array $some_obstacles): array |
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{ |
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\array_walk($some_obstacles, function (&$current_coordinate) { |
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$current_coordinate = $this->normalizeCoordinate($current_coordinate); |
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}); |
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return $some_obstacles; |
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} |
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public function normalizeCoordinate(Coordinates $a_coordinate): Coordinates |
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{ |
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if ($a_coordinate->coordinateX() > $this->max_coordinates->coordinateX()) { |
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return $this->normalizeCoordinate( |
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new Coordinates( |
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$a_coordinate->coordinateX() - $this->max_coordinates->coordinateX(), |
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$a_coordinate->coordinateY() |
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) |
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); |
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} |
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if ($a_coordinate->coordinateY() > $this->max_coordinates->coordinateY()) { |
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return $this->normalizeCoordinate( |
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new Coordinates( |
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$a_coordinate->coordinateX(), |
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$a_coordinate->coordinateY() - $this->max_coordinates->coordinateY() |
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) |
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); |
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} |
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if ($a_coordinate->coordinateX() < 0) { |
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return $this->normalizeCoordinate( |
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new Coordinates( |
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$this->max_coordinates->coordinateX() - abs($a_coordinate->coordinateX()), |
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$a_coordinate->coordinateY() |
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) |
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); |
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} |
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if ($a_coordinate->coordinateY() < 0) { |
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return $this->normalizeCoordinate( |
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new Coordinates( |
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$a_coordinate->coordinateX(), |
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$this->max_coordinates->coordinateY() - abs($a_coordinate->coordinateY()) |
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) |
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); |
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} |
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return $a_coordinate; |
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} |
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public function isObstacle(Coordinates $a_coordinate): bool |
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{ |
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foreach ($this->obstacles as $current_obstacle) { |
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if ($a_coordinate->equals($current_obstacle)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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uvinum /
php-kata-env
