AttributeValueColor.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\VarInt;
use pocketmine\network\mcpe\protocol\PacketDecodeException;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
 
final class AttributeValueColor extends AttributeValue{
    public const ID = AttributeValueType::COLOR;
 
    public const OPERATION_OVERRIDE = "override";
    public const OPERATION_ALPHA_BLEND = "alpha_blend";
    public const OPERATION_ADD = "add";
    public const OPERATION_SUBTRACT = "subtract";
    public const OPERATION_MULTIPLY = "multiply";
 
    public function __construct(
        private AttributeValueColorValue $value,
        private string $operation,
    ){}
 
    public function getTypeId() : int{
        return self::ID;
    }
 
    public function getValue() : AttributeValueColorValue{ return $this->value; }
 
    public function getOperation() : string{ return $this->operation; }
 
    public static function read(ByteBufferReader $in) : self{
        $value = match(VarInt::readUnsignedInt($in)){
            AttributeValueColorArray::ID => AttributeValueColorArray::read($in),
            AttributeValueColorString::ID => AttributeValueColorString::read($in),
            default => throw new PacketDecodeException("Unknown AttributeValueColor type"),
        };
        $operation = CommonTypes::getString($in);
 
        return new self(
            $value,
            $operation
        );
    }
 
    public function write(ByteBufferWriter $out) : void{
        VarInt::writeUnsignedInt($out, $this->value->getTypeId());
        $this->value->write($out);
        CommonTypes::putString($out, $this->operation);
    }
}