Don't abandon a packing as soon as an item doesn't fit (fixes #2)

Packer.php

@@ -143,8 +143,21 @@ public function doVolumePacking() {
 
  //Find best box of iteration, and remove packed items from unpacked list
  $bestBox = $packedBoxesIteration->top();
- for ($i = 0; $i < $bestBox->getItems()->count(); $i++) {
- $this->items->extract();
+ $bestBoxItems = $bestBox->getItems()->asArray();
+ $unpackedItems = $this->items->asArray();
+
+ foreach ($bestBoxItems as $bestBoxItem) {
+ foreach ($unpackedItems as $key => $unpackedItem) {
+ if ($bestBoxItem == $unpackedItem) {
+ unset($unpackedItems[$key]);
+ break;
+ }
+ }
+ }
+
+ $this->items = new ItemList;
+ foreach ($unpackedItems as $item) {
+ $this->items->insert($item);
  }
  $packedBoxes->insert($bestBox);
 
@@ -251,7 +264,8 @@ public function packBox(Box $aBox, ItemList $aItems) {
  $itemToPack = $aItems->top();
 
  if ($itemToPack->getDepth() > ($layerDepth ?: $remainingDepth) || $itemToPack->getWeight() > $remainingWeight) {
- break;
+ $aItems->extract(); //ignore, move on
+ continue;
  }
 
  $this->logger->log(LogLevel::DEBUG, "evaluating item {$itemToPack->getDescription()}");