DVDoug\BoxPacker\LayerStabiliser::stabilise()

Complexity

Conditions	3
Paths	3

Size

Total Lines	22
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	14
CRAP Score	3

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function stabilise(array $packedLayers): array
    {
        // first re-order according to footprint
        $stabilisedLayers = [];
        usort($packedLayers, $this->compare(...));

        // then for each item in the layer, re-calculate each item's z position
        $currentZ = 0;
        foreach ($packedLayers as $oldZLayer) {
            $oldZStart = $oldZLayer->getStartZ();
            $newZLayer = new PackedLayer();
            foreach ($oldZLayer->getItems() as $oldZItem) {
                $newZ = $oldZItem->getZ() - $oldZStart + $currentZ;
                $newZItem = new PackedItem($oldZItem->getItem(), $oldZItem->getX(), $oldZItem->getY(), $newZ, $oldZItem->getWidth(), $oldZItem->getLength(), $oldZItem->getDepth());
                $newZLayer->insert($newZItem);
            }

            $stabilisedLayers[] = $newZLayer;
            $currentZ += $newZLayer->getDepth();
        }

        return $stabilisedLayers;
    }