VoxelShapesPacket.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;
 
use pmmp\encoding\ByteBufferReader;
use pmmp\encoding\ByteBufferWriter;
use pmmp\encoding\LE;
use pmmp\encoding\VarInt;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use pocketmine\network\mcpe\protocol\types\SerializableVoxelShape;
use function count;
 
class VoxelShapesPacket extends DataPacket implements ClientboundPacket{
    public const NETWORK_ID = ProtocolInfo::VOXEL_SHAPES_PACKET;
 
    private array $shapes;
    private array $nameMap;
 
    private int $customShapeCount;
 
    public static function create(array $shapes, array $nameMap, int $customShapeCount) : self{
        $result = new self;
        $result->shapes = $shapes;
        $result->nameMap = $nameMap;
        $result->customShapeCount = $customShapeCount;
        return $result;
    }
 
    public function getShapes() : array{ return $this->shapes; }
 
    public function getNameMap() : array{ return $this->nameMap; }
 
    public function getCustomShapeCount() : int{ return $this->customShapeCount; }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->shapes = [];
        for($i = 0, $shapesCount = VarInt::readUnsignedInt($in); $i < $shapesCount; ++$i){
            $this->shapes[] = SerializableVoxelShape::read($in);
        }
 
        $this->nameMap = [];
        for($i = 0, $namesCount = VarInt::readUnsignedInt($in); $i < $namesCount; ++$i){
            $name = CommonTypes::getString($in);
            $id = LE::readUnsignedShort($in);
            $this->nameMap[$name] = $id;
        }
 
        $this->customShapeCount = LE::readUnsignedShort($in);
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        VarInt::writeUnsignedInt($out, count($this->shapes));
        foreach($this->shapes as $shape){
            $shape->write($out);
        }
 
        VarInt::writeUnsignedInt($out, count($this->nameMap));
        foreach($this->nameMap as $name => $id){
            CommonTypes::putString($out, $name);
            LE::writeUnsignedShort($out, $id);
        }
 
        LE::writeUnsignedShort($out, $this->customShapeCount);
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleVoxelShapes($this);
    }
}