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PackedBox.php
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PackedBox.php
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<?php
/**
* Box packing (3D bin packing, knapsack problem)
* @package BoxPacker
* @author Doug Wright
*/
namespace DVDoug\BoxPacker;
/**
* A "box" with items
* @author Doug Wright
* @package BoxPacker
*/
class PackedBox
{
/**
* Box used
* @var Box
*/
protected $box;
/**
* Items in the box
* @var ItemList
*/
protected $items;
/**
* Total weight of box
* @var int
*/
protected $weight;
/**
* Remaining width inside box for another item
* @var int
*/
protected $remainingWidth;
/**
* Remaining length inside box for another item
* @var int
*/
protected $remainingLength;
/**
* Remaining depth inside box for another item
* @var int
*/
protected $remainingDepth;
/**
* Remaining weight inside box for another item
* @var int
*/
protected $remainingWeight;
/**
* Used width inside box for packing items
* @var int
*/
protected $usedWidth;
/**
* Used length inside box for packing items
* @var int
*/
protected $usedLength;
/**
* Used depth inside box for packing items
* @var int
*/
protected $usedDepth;
/**
* Get box used
* @return Box
*/
public function getBox()
{
return $this->box;
}
/**
* Get items packed
* @return ItemList
*/
public function getItems()
{
return $this->items;
}
/**
* Get packed weight
* @return int weight in grams
*/
public function getWeight()
{
if (!is_null($this->weight)) {
return $this->weight;
}
$this->weight = $this->box->getEmptyWeight();
$items = clone $this->items;
foreach ($items as $item) {
$this->weight += $item->getWeight();
}
return $this->weight;
}
/**
* Get remaining width inside box for another item
* @return int
*/
public function getRemainingWidth()
{
return $this->remainingWidth;
}
/**
* Get remaining length inside box for another item
* @return int
*/
public function getRemainingLength()
{
return $this->remainingLength;
}
/**
* Get remaining depth inside box for another item
* @return int
*/
public function getRemainingDepth()
{
return $this->remainingDepth;
}
/**
* Used width inside box for packing items
* @return int
*/
public function getUsedWidth()
{
return $this->usedWidth;
}
/**
* Used length inside box for packing items
* @return int
*/
public function getUsedLength()
{
return $this->usedLength;
}
/**
* Used depth inside box for packing items
* @return int
*/
public function getUsedDepth()
{
return $this->usedDepth;
}
/**
* Get remaining weight inside box for another item
* @return int
*/
public function getRemainingWeight()
{
return $this->remainingWeight;
}
/**
* Get volume utilisation of the packed box
* @return float
*/
public function getVolumeUtilisation()
{
$itemVolume = 0;
/** @var Item $item */
foreach (clone $this->items as $item) {
$itemVolume += $item->getVolume();
}
return round($itemVolume / $this->box->getInnerVolume() * 100, 1);
}
/**
* Constructor
*
* @param Box $box
* @param ItemList $itemList
* @param int $remainingWidth
* @param int $remainingLength
* @param int $remainingDepth
* @param int $remainingWeight
* @param int $usedWidth
* @param int $usedLength
* @param int $usedDepth
*/
public function __construct(
Box $box,
ItemList $itemList,
$remainingWidth,
$remainingLength,
$remainingDepth,
$remainingWeight,
$usedWidth,
$usedLength,
$usedDepth
)
{
$this->box = $box;
$this->items = $itemList;
$this->remainingWidth = $remainingWidth;
$this->remainingLength = $remainingLength;
$this->remainingDepth = $remainingDepth;
$this->remainingWeight = $remainingWeight;
$this->usedWidth = $usedWidth;
$this->usedLength = $usedLength;
$this->usedDepth = $usedDepth;
}
}