BlockEventHelper.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\block\utils;
 
use pocketmine\block\Block;
use pocketmine\event\block\BlockDeathEvent;
use pocketmine\event\block\BlockFormEvent;
use pocketmine\event\block\BlockGrowEvent;
use pocketmine\event\block\BlockMeltEvent;
use pocketmine\event\block\BlockSpreadEvent;
use pocketmine\player\Player;
 
final class BlockEventHelper{
 
    public static function grow(Block $oldState, Block $newState, ?Player $causingPlayer) : bool{
        if(BlockGrowEvent::hasHandlers()){
            $ev = new BlockGrowEvent($oldState, $newState, $causingPlayer);
            $ev->call();
            if($ev->isCancelled()){
                return false;
            }
            $newState = $ev->getNewState();
        }
 
        $position = $oldState->getPosition();
        $position->getWorld()->setBlock($position, $newState);
        return true;
    }
 
    public static function spread(Block $oldState, Block $newState, Block $source) : bool{
        if(BlockSpreadEvent::hasHandlers()){
            $ev = new BlockSpreadEvent($oldState, $source, $newState);
            $ev->call();
            if($ev->isCancelled()){
                return false;
            }
            $newState = $ev->getNewState();
        }
 
        $position = $oldState->getPosition();
        $position->getWorld()->setBlock($position, $newState);
        return true;
    }
 
    public static function form(Block $oldState, Block $newState, Block $cause) : bool{
        if(BlockFormEvent::hasHandlers()){
            $ev = new BlockFormEvent($oldState, $newState, $cause);
            $ev->call();
            if($ev->isCancelled()){
                return false;
            }
            $newState = $ev->getNewState();
        }
 
        $position = $oldState->getPosition();
        $position->getWorld()->setBlock($position, $newState);
        return true;
    }
 
    public static function melt(Block $oldState, Block $newState) : bool{
        if(BlockMeltEvent::hasHandlers()){
            $ev = new BlockMeltEvent($oldState, $newState);
            $ev->call();
            if($ev->isCancelled()){
                return false;
            }
            $newState = $ev->getNewState();
        }
 
        $position = $oldState->getPosition();
        $position->getWorld()->setBlock($position, $newState);
        return true;
    }
 
    public static function die(Block $oldState, Block $newState) : bool{
        if(BlockDeathEvent::hasHandlers()){
            $ev = new BlockDeathEvent($oldState, $newState);
            $ev->call();
            if($ev->isCancelled()){
                return false;
            }
            $newState = $ev->getNewState();
        }
 
        $position = $oldState->getPosition();
        $position->getWorld()->setBlock($position, $newState);
        return true;
    }
}