AttributeEnvironment.php

<?php
 
/*
 * This file is part of BedrockProtocol.
 * Copyright (C) 2014-2022 PocketMine Team <https://github.com/pmmp/BedrockProtocol>
 *
 * BedrockProtocol 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.
 */
 
declare(strict_types=1);
 
namespace pocketmine\network\mcpe\protocol\types;
 
use pmmp\encoding\ByteBufferReader;
use pmmp\encoding\ByteBufferWriter;
use pmmp\encoding\LE;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
 
final class AttributeEnvironment{
 
    public function __construct(
        private string $name,
        private ?AttributeValue $fromAttribute,
        private AttributeValue $attribute,
        private ?AttributeValue $toAttribute,
        private int $currentTransitionTicks,
        private int $totalTransitionTicks,
        private string $easeType
    ){}
 
    public function getName() : string{ return $this->name; }
 
    public function getFromAttribute() : ?AttributeValue{ return $this->fromAttribute; }
 
    public function getAttribute() : AttributeValue{ return $this->attribute; }
 
    public function getToAttribute() : ?AttributeValue{ return $this->toAttribute; }
 
    public function getCurrentTransitionTicks() : int{ return $this->currentTransitionTicks; }
 
    public function getTotalTransitionTicks() : int{ return $this->totalTransitionTicks; }
 
    public function getEaseType() : string{ return $this->easeType; }
 
    public static function read(ByteBufferReader $in) : self{
        $name = CommonTypes::getString($in);
        $fromAttribute = CommonTypes::getBool($in) ? AttributeValue::read($in) : null;
        $attribute = AttributeValue::read($in);
        $toAttribute = CommonTypes::getBool($in) ? AttributeValue::read($in) : null;
        $currentTransitionTicks = LE::readUnsignedInt($in);
        $totalTransitionTicks = LE::readUnsignedInt($in);
        $easeType = CommonTypes::getString($in);
 
        return new self(
            $name,
            $fromAttribute,
            $attribute,
            $toAttribute,
            $currentTransitionTicks,
            $totalTransitionTicks,
            $easeType
        );
    }
 
    public function write(ByteBufferWriter $out) : void{
        CommonTypes::putString($out, $this->name);
        CommonTypes::writeOptional($out, $this->fromAttribute, fn(ByteBufferWriter $out, AttributeValue $value) => $value->write($out));
        $this->attribute->write($out);
        CommonTypes::writeOptional($out, $this->toAttribute, fn(ByteBufferWriter $out, AttributeValue $value) => $value->write($out));
        LE::writeUnsignedInt($out, $this->currentTransitionTicks);
        LE::writeUnsignedInt($out, $this->totalTransitionTicks);
        CommonTypes::putString($out, $this->easeType);
    }
}