*/ protected $slots = []; /** @var Player[] */ protected $viewers = []; /** @var InventoryHolder */ protected $holder; /** * @param InventoryHolder $holder * @param Item[] $items * @param int $size * @param string $title */ public function __construct(InventoryHolder $holder, array $items = [], int $size = null, string $title = null){ $this->holder = $holder; $this->slots = new \SplFixedArray($size ?? $this->getDefaultSize()); $this->title = $title ?? $this->getName(); $this->setContents($items); } abstract public function getName() : string; public function getTitle() : string{ return $this->title; } /** * Returns the Minecraft PE inventory type used to show the inventory window to clients. * @return int */ abstract public function getNetworkType() : int; /** * Returns the size of the inventory. * @return int */ public function getSize() : int{ return $this->slots->getSize(); } /** * Sets the new size of the inventory. * WARNING: If the size is smaller, any items past the new size will be lost. * * @param int $size */ public function setSize(int $size){ $this->slots->setSize($size); } abstract public function getDefaultSize() : int; public function getMaxStackSize() : int{ return $this->maxStackSize; } public function getItem(int $index) : Item{ return $this->slots[$index] !== null ? clone $this->slots[$index] : Item::get(Item::AIR, 0, 0); } public function getContents() : array{ return array_filter($this->slots->toArray(), function(Item $item = null){ return $item !== null; }); } /** * @param Item[] $items */ public function setContents(array $items){ if(count($items) > $this->getSize()){ $items = array_slice($items, 0, $this->getSize(), true); } for($i = 0, $size = $this->getSize(); $i < $size; ++$i){ if(!isset($items[$i])){ if($this->slots[$i] !== null){ $this->clear($i, false); } }else{ if(!$this->setItem($i, $items[$i], false)){ $this->clear($i, false); } } } $this->sendContents($this->getViewers()); } public function setItem(int $index, Item $item, bool $send = true) : bool{ if($item->isNull()){ $item = Item::get(Item::AIR, 0, 0); }else{ $item = clone $item; } $holder = $this->getHolder(); if($holder instanceof Entity){ Server::getInstance()->getPluginManager()->callEvent($ev = new EntityInventoryChangeEvent($holder, $this->getItem($index), $item, $index)); if($ev->isCancelled()){ $this->sendSlot($index, $this->getViewers()); return false; } $item = $ev->getNewItem(); } $old = $this->getItem($index); $this->slots[$index] = $item->isNull() ? null : $item; $this->onSlotChange($index, $old, $send); return true; } public function contains(Item $item) : bool{ $count = max(1, $item->getCount()); $checkDamage = !$item->hasAnyDamageValue(); $checkTags = $item->hasCompoundTag(); foreach($this->getContents() as $i){ if($item->equals($i, $checkDamage, $checkTags)){ $count -= $i->getCount(); if($count <= 0){ return true; } } } return false; } public function all(Item $item) : array{ $slots = []; $checkDamage = !$item->hasAnyDamageValue(); $checkTags = $item->hasCompoundTag(); foreach($this->getContents() as $index => $i){ if($item->equals($i, $checkDamage, $checkTags)){ $slots[$index] = $i; } } return $slots; } public function remove(Item $item){ $checkDamage = !$item->hasAnyDamageValue(); $checkTags = $item->hasCompoundTag(); foreach($this->getContents() as $index => $i){ if($item->equals($i, $checkDamage, $checkTags)){ $this->clear($index); } } } public function first(Item $item) : int{ $count = max(1, $item->getCount()); $checkDamage = !$item->hasAnyDamageValue(); $checkTags = $item->hasCompoundTag(); foreach($this->getContents() as $index => $i){ if($item->equals($i, $checkDamage, $checkTags) and $i->getCount() >= $count){ return $index; } } return -1; } public function firstEmpty() : int{ foreach($this->slots as $i => $slot){ if($slot === null or $slot->isNull()){ return $i; } } return -1; } public function canAddItem(Item $item) : bool{ $item = clone $item; $checkDamage = !$item->hasAnyDamageValue(); $checkTags = $item->hasCompoundTag(); for($i = 0; $i < $this->getSize(); ++$i){ $slot = $this->getItem($i); if($item->equals($slot, $checkDamage, $checkTags)){ if(($diff = $slot->getMaxStackSize() - $slot->getCount()) > 0){ $item->setCount($item->getCount() - $diff); } }elseif($slot->getId() === Item::AIR){ $item->setCount($item->getCount() - $this->getMaxStackSize()); } if($item->getCount() <= 0){ return true; } } return false; } public function addItem(Item ...$slots) : array{ /** @var Item[] $itemSlots */ /** @var Item[] $slots */ $itemSlots = []; foreach($slots as $slot){ if($slot->getId() !== 0 and $slot->getCount() > 0){ $itemSlots[] = clone $slot; } } $emptySlots = []; for($i = 0; $i < $this->getSize(); ++$i){ $item = $this->getItem($i); if($item->getId() === Item::AIR or $item->getCount() <= 0){ $emptySlots[] = $i; } foreach($itemSlots as $index => $slot){ if($slot->equals($item) and $item->getCount() < $item->getMaxStackSize()){ $amount = min($item->getMaxStackSize() - $item->getCount(), $slot->getCount(), $this->getMaxStackSize()); if($amount > 0){ $slot->setCount($slot->getCount() - $amount); $item->setCount($item->getCount() + $amount); $this->setItem($i, $item); if($slot->getCount() <= 0){ unset($itemSlots[$index]); } } } } if(count($itemSlots) === 0){ break; } } if(count($itemSlots) > 0 and count($emptySlots) > 0){ foreach($emptySlots as $slotIndex){ //This loop only gets the first item, then goes to the next empty slot foreach($itemSlots as $index => $slot){ $amount = min($slot->getMaxStackSize(), $slot->getCount(), $this->getMaxStackSize()); $slot->setCount($slot->getCount() - $amount); $item = clone $slot; $item->setCount($amount); $this->setItem($slotIndex, $item); if($slot->getCount() <= 0){ unset($itemSlots[$index]); } break; } } } return $itemSlots; } public function removeItem(Item ...$slots) : array{ /** @var Item[] $itemSlots */ /** @var Item[] $slots */ $itemSlots = []; foreach($slots as $slot){ if($slot->getId() !== 0 and $slot->getCount() > 0){ $itemSlots[] = clone $slot; } } for($i = 0; $i < $this->getSize(); ++$i){ $item = $this->getItem($i); if($item->getId() === Item::AIR or $item->getCount() <= 0){ continue; } foreach($itemSlots as $index => $slot){ if($slot->equals($item, !$slot->hasAnyDamageValue(), $slot->hasCompoundTag())){ $amount = min($item->getCount(), $slot->getCount()); $slot->setCount($slot->getCount() - $amount); $item->setCount($item->getCount() - $amount); $this->setItem($i, $item); if($slot->getCount() <= 0){ unset($itemSlots[$index]); } } } if(count($itemSlots) === 0){ break; } } return $itemSlots; } public function clear(int $index, bool $send = true) : bool{ return $this->setItem($index, Item::get(Item::AIR, 0, 0), $send); } public function clearAll(){ for($i = 0, $size = $this->getSize(); $i < $size; ++$i){ $this->clear($i, false); } $this->sendContents($this->getViewers()); } /** * @return Player[] */ public function getViewers() : array{ return $this->viewers; } public function getHolder(){ return $this->holder; } public function setMaxStackSize(int $size){ $this->maxStackSize = $size; } public function open(Player $who) : bool{ $who->getServer()->getPluginManager()->callEvent($ev = new InventoryOpenEvent($this, $who)); if($ev->isCancelled()){ return false; } $this->onOpen($who); return true; } public function close(Player $who){ $this->onClose($who); } public function onOpen(Player $who){ $this->viewers[spl_object_hash($who)] = $who; } public function onClose(Player $who){ unset($this->viewers[spl_object_hash($who)]); } public function onSlotChange(int $index, Item $before, bool $send){ if($send){ $this->sendSlot($index, $this->getViewers()); } } /** * @param Player|Player[] $target */ public function sendContents($target){ if($target instanceof Player){ $target = [$target]; } $pk = new InventoryContentPacket(); for($i = 0; $i < $this->getSize(); ++$i){ $pk->items[$i] = $this->getItem($i); } foreach($target as $player){ if(($id = $player->getWindowId($this)) === -1 or $player->spawned !== true){ $this->close($player); continue; } $pk->windowId = $id; $player->dataPacket($pk); } } /** * @param int $index * @param Player|Player[] $target */ public function sendSlot(int $index, $target){ if($target instanceof Player){ $target = [$target]; } $pk = new InventorySlotPacket(); $pk->inventorySlot = $index; $pk->item = clone $this->getItem($index); foreach($target as $player){ if(($id = $player->getWindowId($this)) === -1){ $this->close($player); continue; } $pk->windowId = $id; $player->dataPacket($pk); } } }