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<?php declare(strict_types=1); |
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namespace Stratadox\PuzzleSolver\Puzzle\SlidingCrates; |
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use function abs; |
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use function current; |
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use function end; |
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final class Rectangle |
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{ |
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/** @var int */ |
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private $x; |
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/** @var int */ |
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private $y; |
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/** @var int */ |
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private $w; |
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/** @var int */ |
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private $h; |
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private function __construct(int $x, int $y, int $w, int $h) |
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{ |
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$this->x = $x; |
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$this->y = $y; |
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$this->w = $w; |
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$this->h = $h; |
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} |
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public static function fromCoordinates(array ...$coordinates): self |
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{ |
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[$x1, $y1] = current($coordinates); |
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[$x2, $y2] = end($coordinates); |
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$h = abs($y2 - $y1) + 1; |
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$w = abs($x2 - $x1) + 1; |
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return new self($x1, $y1, $w, $h); |
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} |
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public function isHorizontal(): bool |
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{ |
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return $this->w >= $this->h; |
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} |
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public function isVertical(): bool |
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{ |
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return $this->h >= $this->w; |
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} |
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public function after(Push $push): self |
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{ |
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$new = clone $this; |
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$new->x = $push->newX($this->x); |
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$new->y = $push->newY($this->y); |
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return $new; |
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} |
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public function collidesWith(Rectangle $other): bool |
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{ |
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return $this->x < $other->x + $other->w |
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&& $this->x + $this->w > $other->x |
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&& $this->y < $other->y + $other->h |
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&& $this->y + $this->h > $other->y; |
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} |
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public function isOutOfBounds(int $width, int $height): bool |
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{ |
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return $this->x < 0 |
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|| $this->x + $this->w > $width |
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|| $this->y < 0 |
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|| $this->y + $this->h > $height; |
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} |
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public function coordinates(): array |
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{ |
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$coordinates = []; |
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for ($x = 0; $x < $this->w; ++$x) { |
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for ($y = 0; $y < $this->h; ++$y) { |
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$coordinates[] = [$this->x + $x, $this->y + $y]; |
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} |
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} |
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return $coordinates; |
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} |
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public function __toString(): string |
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{ |
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return "($this->x, $this->y, $this->w, $this->h)"; |
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} |
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} |
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Stratadox /
PuzzleSolver
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