Completed
Push — master ( 9610e0...320eee )
by Doug
08:43
created

PackedItemList::asItemArray()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 8
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 5
CRAP Score 2

Importance

Changes 0
Metric Value
dl 0
loc 8
ccs 5
cts 5
cp 1
rs 9.4285
c 0
b 0
f 0
cc 2
eloc 5
nc 2
nop 0
crap 2
1
<?php
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/**
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 * Box packing (3D bin packing, knapsack problem)
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 * @package BoxPacker
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 * @author Doug Wright
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 */
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namespace DVDoug\BoxPacker;
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/**
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 * List of packed items, ordered by volume
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 * @author Doug Wright
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 * @package BoxPacker
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 */
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class PackedItemList extends \SplMaxHeap
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{
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    /**
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     * Compare elements in order to place them correctly in the heap while sifting up.
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     *
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     * @see \SplMaxHeap::compare()
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     *
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     * @param PackedItem $itemA
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     * @param PackedItem $itemB
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     *
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     * @return int
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     */
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    public function compare($itemA, $itemB)
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    {
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        if ($itemA->getItem()->getVolume() > $itemB->getItem()->getVolume()) {
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            return 1;
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        } elseif ($itemA->getItem()->getVolume() < $itemB->getItem()->getVolume()) {
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            return -1;
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        } else {
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            return $itemA->getItem()->getWeight() - $itemB->getItem()->getWeight();
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        }
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    }
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    /**
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     * Get copy of this list as a standard PHP array
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     * @return PackedItem[]
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     */
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    public function asArray()
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    {
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        $return = [];
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        foreach (clone $this as $item) {
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            $return[] = $item;
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        }
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        return $return;
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    }
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    /**
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     * Get copy of this list as a standard PHP array
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     * @return Item[]
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     */
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    public function asItemArray()
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    {
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        $return = [];
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        foreach (clone $this as $item) {
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            $return[] = $item->getItem();
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        }
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        return $return;
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    }
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}
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