Files
PocketMine-MP/src/pocketmine/inventory/transaction/action/InventoryAction.php
2018-03-29 12:20:13 +01:00

116 lines
3.0 KiB
PHP

<?php
/*
*
* ____ _ _ __ __ _ __ __ ____
* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* @author PocketMine Team
* @link http://www.pocketmine.net/
*
*
*/
declare(strict_types=1);
namespace pocketmine\inventory\transaction\action;
use pocketmine\inventory\transaction\InventoryTransaction;
use pocketmine\item\Item;
use pocketmine\Player;
/**
* Represents an action involving a change that applies in some way to an inventory or other item-source.
*/
abstract class InventoryAction{
/** @var Item */
protected $sourceItem;
/** @var Item */
protected $targetItem;
public function __construct(Item $sourceItem, Item $targetItem){
$this->sourceItem = $sourceItem;
$this->targetItem = $targetItem;
}
/**
* Returns the item that was present before the action took place.
* @return Item
*/
public function getSourceItem() : Item{
return clone $this->sourceItem;
}
/**
* Returns the item that the action attempted to replace the source item with.
* @return Item
*/
public function getTargetItem() : Item{
return clone $this->targetItem;
}
/**
* Returns whether this action is currently valid. This should perform any necessary sanity checks.
*
* @param Player $source
*
* @return bool
*/
abstract public function isValid(Player $source) : bool;
/**
* Called when the action is added to the specified InventoryTransaction.
*
* @param InventoryTransaction $transaction
*/
public function onAddToTransaction(InventoryTransaction $transaction) : void{
}
/**
* Called by inventory transactions before any actions are processed. If this returns false, the transaction will
* be cancelled.
*
* @param Player $source
*
* @return bool
*/
public function onPreExecute(Player $source) : bool{
return true;
}
/**
* Performs actions needed to complete the inventory-action server-side. Returns if it was successful. Will return
* false if plugins cancelled events. This will only be called if the transaction which it is part of is considered
* valid.
*
* @param Player $source
*
* @return bool
*/
abstract public function execute(Player $source) : bool;
/**
* Performs additional actions when this inventory-action completed successfully.
*
* @param Player $source
*/
abstract public function onExecuteSuccess(Player $source) : void;
/**
* Performs additional actions when this inventory-action did not complete successfully.
*
* @param Player $source
*/
abstract public function onExecuteFail(Player $source) : void;
}