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ConstrainedItem.php
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ConstrainedItem.php
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<?php
/**
* Box packing (3D bin packing, knapsack problem)
* @package BoxPacker
* @author Doug Wright
*/
namespace DVDoug\BoxPacker;
/**
* An item to be packed where additional constraints need to be considered. Only implement this interface if you actually
* need this additional functionality as it will slow down the packing algorithm
* @author Doug Wright
* @package BoxPacker
*/
interface ConstrainedItem extends Item
{
/**
* Hook for user implementation of item-specific constraints, e.g. max <x> batteries per box
*
* @param ItemList $alreadyPackedItems
* @param Box $box
*
* @return bool
*/
public function canBePackedInBox(ItemList $alreadyPackedItems, Box $box);
}