BoxList::getIterator() - Code Metrics - Inspection of "Fix Scrutinizer build" - dvdoug/BoxPacker - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 73ddcb...629397 )

by Doug

created 2020-08-07 17:57 UTC

BoxList::getIterator() A

↳ Parent: BoxList

Complexity

Conditions	2
Paths	2

Size

Total Lines	8
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	2

Importance

Changes

Metric	Value
cc	2
eloc	4
nc	2
nop	0
dl	0
loc	8
ccs	5
cts	5
cp	1
crap	2
rs	10
c	0
b	0
f	0

<?php
/**
 * Box packing (3D bin packing, knapsack problem).
 *
 * @author Doug Wright
 */
declare(strict_types=1);

namespace DVDoug\BoxPacker;

use ArrayIterator;
use IteratorAggregate;
use Traversable;
use function usort;

/**
 * List of boxes available to put items into, ordered by volume.
 *
 * @author Doug Wright
 */
class BoxList implements IteratorAggregate
{
    /**
     * List containing boxes.
     *
     * @var Box[]
     */
    private $list = [];

    /**
     * Has this list already been sorted?
     *
     * @var bool
     */
    private $isSorted = false;

    /**
     * @return Traversable|Box[]
     */
    public function getIterator(): Traversable
    {
        if (!$this->isSorted) {
            usort($this->list, [$this, 'compare']);
            $this->isSorted = true;
        }

        return new ArrayIterator($this->list);
    }

    public function insert(Box $item): void
    {
        $this->list[] = $item;
    }

    /**
     * @param Box $boxA
     * @param Box $boxB
     */
    public static function compare($boxA, $boxB): int
    {
        $boxAVolume = $boxA->getInnerWidth() * $boxA->getInnerLength() * $boxA->getInnerDepth();
        $boxBVolume = $boxB->getInnerWidth() * $boxB->getInnerLength() * $boxB->getInnerDepth();

        $volumeDecider = $boxAVolume <=> $boxBVolume; // try smallest box first

        if ($volumeDecider !== 0) {
            return $volumeDecider;
        }

        $emptyWeightDecider = $boxA->getEmptyWeight() <=> $boxB->getEmptyWeight(); // with smallest empty weight
        if ($emptyWeightDecider !== 0) {
            return $emptyWeightDecider;
        }

        // maximum weight capacity as fallback decider
        return ($boxA->getMaxWeight() - $boxA->getEmptyWeight()) <=> ($boxB->getMaxWeight() - $boxB->getEmptyWeight());
    }
}


1		<?php
2		/**
3		* Box packing (3D bin packing, knapsack problem).
4		*
5		* @author Doug Wright
6		*/
7		declare(strict_types=1);
8
9		namespace DVDoug\BoxPacker;
10
11		use ArrayIterator;
12		use IteratorAggregate;
13		use Traversable;
14		use function usort;
15
16		/**
17		* List of boxes available to put items into, ordered by volume.
18		*
19		* @author Doug Wright
20		*/
21		class BoxList implements IteratorAggregate
22		{
23		/**
24		* List containing boxes.
25		*
26		* @var Box[]
27		*/
28		private $list = [];
29
30		/**
31		* Has this list already been sorted?
32		*
33		* @var bool
34		*/
35		private $isSorted = false;
36
37		/**
38		* @return Traversable\|Box[]
39		*/
40	37	public function getIterator(): Traversable
41		{
42	37	if (!$this->isSorted) {
43	37	usort($this->list, [$this, 'compare']);
44	37	$this->isSorted = true;
45		}
46
47	37	return new ArrayIterator($this->list);
48		}
49
50	36	public function insert(Box $item): void
51		{
52	36	$this->list[] = $item;
53	36	}
54
55		/**
56		* @param Box $boxA
57		* @param Box $boxB
58		*/
59	22	public static function compare($boxA, $boxB): int
60		{
61	22	$boxAVolume = $boxA->getInnerWidth() * $boxA->getInnerLength() * $boxA->getInnerDepth();
62	22	$boxBVolume = $boxB->getInnerWidth() * $boxB->getInnerLength() * $boxB->getInnerDepth();
63
64	22	$volumeDecider = $boxAVolume <=> $boxBVolume; // try smallest box first
65
66	22	if ($volumeDecider !== 0) {
67	18	return $volumeDecider;
68		}
69
70	4	$emptyWeightDecider = $boxA->getEmptyWeight() <=> $boxB->getEmptyWeight(); // with smallest empty weight
71	4	if ($emptyWeightDecider !== 0) {
72	4	return $emptyWeightDecider;
73		}
74
75		// maximum weight capacity as fallback decider
76	1	return ($boxA->getMaxWeight() - $boxA->getEmptyWeight()) <=> ($boxB->getMaxWeight() - $boxB->getEmptyWeight());
77		}
78		}
79

dvdoug / BoxPacker

Push — master ( 73ddcb...629397 )

BoxList::getIterator() A

Complexity

Size

Duplication

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Importance

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