mirror of
https://github.com/pmmp/PocketMine-MP.git
synced 2025-05-15 18:29:46 +00:00
520 lines
12 KiB
PHP
520 lines
12 KiB
PHP
<?php
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/*
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*
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* ____ _ _ __ __ _ __ __ ____
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* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
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* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
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* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
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* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* @author PocketMine Team
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* @link http://www.pocketmine.net/
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*
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*
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*/
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declare(strict_types=1);
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namespace pocketmine\network\mcpe;
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#include <rules/DataPacket.h>
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use pocketmine\entity\Attribute;
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use pocketmine\entity\Entity;
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use pocketmine\item\Item;
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use pocketmine\item\ItemFactory;
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use pocketmine\math\Vector3;
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use pocketmine\network\mcpe\protocol\types\CommandOriginData;
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use pocketmine\network\mcpe\protocol\types\EntityLink;
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use pocketmine\utils\BinaryStream;
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use pocketmine\utils\UUID;
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class NetworkBinaryStream extends BinaryStream{
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public function getString() : string{
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return $this->get($this->getUnsignedVarInt());
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}
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public function putString(string $v) : void{
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$this->putUnsignedVarInt(strlen($v));
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$this->put($v);
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}
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public function getUUID() : UUID{
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//This is actually two little-endian longs: UUID Most followed by UUID Least
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$part1 = $this->getLInt();
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$part0 = $this->getLInt();
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$part3 = $this->getLInt();
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$part2 = $this->getLInt();
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return new UUID($part0, $part1, $part2, $part3);
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}
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public function putUUID(UUID $uuid) : void{
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$this->putLInt($uuid->getPart(1));
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$this->putLInt($uuid->getPart(0));
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$this->putLInt($uuid->getPart(3));
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$this->putLInt($uuid->getPart(2));
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}
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public function getSlot() : Item{
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$id = $this->getVarInt();
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if($id === 0){
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return ItemFactory::get(0, 0, 0);
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}
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$auxValue = $this->getVarInt();
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$data = $auxValue >> 8;
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if($data === 0x7fff){
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$data = -1;
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}
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$cnt = $auxValue & 0xff;
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$nbtLen = $this->getLShort();
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$nbt = "";
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if($nbtLen > 0){
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$nbt = $this->get($nbtLen);
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}
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//TODO
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for($i = 0, $canPlaceOn = $this->getVarInt(); $i < $canPlaceOn; ++$i){
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$this->getString();
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}
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//TODO
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for($i = 0, $canDestroy = $this->getVarInt(); $i < $canDestroy; ++$i){
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$this->getString();
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}
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return ItemFactory::get($id, $data, $cnt, $nbt);
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}
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public function putSlot(Item $item) : void{
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if($item->getId() === 0){
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$this->putVarInt(0);
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return;
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}
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$this->putVarInt($item->getId());
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$auxValue = (($item->getDamage() & 0x7fff) << 8) | $item->getCount();
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$this->putVarInt($auxValue);
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$nbt = $item->getCompoundTag();
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$nbtLen = strlen($nbt);
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if($nbtLen > 32767){
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throw new \InvalidArgumentException("NBT encoded length must be < 32768, got $nbtLen bytes");
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}
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$this->putLShort($nbtLen);
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$this->put($nbt);
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$this->putVarInt(0); //CanPlaceOn entry count (TODO)
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$this->putVarInt(0); //CanDestroy entry count (TODO)
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}
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/**
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* Decodes entity metadata from the stream.
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*
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* @param bool $types Whether to include metadata types along with values in the returned array
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*
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* @return array
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*/
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public function getEntityMetadata(bool $types = true) : array{
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$count = $this->getUnsignedVarInt();
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$data = [];
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for($i = 0; $i < $count; ++$i){
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$key = $this->getUnsignedVarInt();
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$type = $this->getUnsignedVarInt();
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$value = null;
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switch($type){
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case Entity::DATA_TYPE_BYTE:
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$value = $this->getByte();
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break;
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case Entity::DATA_TYPE_SHORT:
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$value = $this->getSignedLShort();
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break;
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case Entity::DATA_TYPE_INT:
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$value = $this->getVarInt();
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break;
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case Entity::DATA_TYPE_FLOAT:
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$value = $this->getLFloat();
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break;
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case Entity::DATA_TYPE_STRING:
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$value = $this->getString();
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break;
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case Entity::DATA_TYPE_SLOT:
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$value = $this->getSlot();
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break;
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case Entity::DATA_TYPE_POS:
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$value = new Vector3();
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$this->getSignedBlockPosition($value->x, $value->y, $value->z);
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break;
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case Entity::DATA_TYPE_LONG:
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$value = $this->getVarLong();
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break;
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case Entity::DATA_TYPE_VECTOR3F:
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$value = $this->getVector3();
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break;
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default:
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throw new \UnexpectedValueException("Invalid data type " . $type);
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}
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if($types){
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$data[$key] = [$type, $value];
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}else{
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$data[$key] = $value;
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}
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}
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return $data;
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}
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/**
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* Writes entity metadata to the packet buffer.
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*
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* @param array $metadata
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*/
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public function putEntityMetadata(array $metadata) : void{
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$this->putUnsignedVarInt(count($metadata));
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foreach($metadata as $key => $d){
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$this->putUnsignedVarInt($key); //data key
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$this->putUnsignedVarInt($d[0]); //data type
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switch($d[0]){
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case Entity::DATA_TYPE_BYTE:
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$this->putByte($d[1]);
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break;
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case Entity::DATA_TYPE_SHORT:
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$this->putLShort($d[1]); //SIGNED short!
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break;
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case Entity::DATA_TYPE_INT:
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$this->putVarInt($d[1]);
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break;
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case Entity::DATA_TYPE_FLOAT:
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$this->putLFloat($d[1]);
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break;
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case Entity::DATA_TYPE_STRING:
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$this->putString($d[1]);
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break;
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case Entity::DATA_TYPE_SLOT:
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$this->putSlot($d[1]);
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break;
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case Entity::DATA_TYPE_POS:
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$v = $d[1];
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if($v !== null){
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$this->putSignedBlockPosition($v->x, $v->y, $v->z);
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}else{
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$this->putSignedBlockPosition(0, 0, 0);
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}
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break;
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case Entity::DATA_TYPE_LONG:
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$this->putVarLong($d[1]);
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break;
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case Entity::DATA_TYPE_VECTOR3F:
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$this->putVector3Nullable($d[1]);
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break;
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default:
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throw new \UnexpectedValueException("Invalid data type " . $d[0]);
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}
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}
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}
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/**
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* Reads a list of Attributes from the stream.
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* @return Attribute[]
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*
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* @throws \UnexpectedValueException if reading an attribute with an unrecognized name
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*/
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public function getAttributeList() : array{
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$list = [];
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$count = $this->getUnsignedVarInt();
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for($i = 0; $i < $count; ++$i){
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$min = $this->getLFloat();
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$max = $this->getLFloat();
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$current = $this->getLFloat();
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$default = $this->getLFloat();
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$id = $this->getString();
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$attr = Attribute::getAttribute($id);
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if($attr !== null){
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$attr->setMinValue($min);
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$attr->setMaxValue($max);
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$attr->setValue($current);
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$attr->setDefaultValue($default);
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$list[] = $attr;
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}else{
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throw new \UnexpectedValueException("Unknown attribute type \"$id\"");
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}
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}
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return $list;
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}
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/**
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* Writes a list of Attributes to the packet buffer using the standard format.
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*
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* @param Attribute ...$attributes
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*/
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public function putAttributeList(Attribute ...$attributes) : void{
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$this->putUnsignedVarInt(count($attributes));
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foreach($attributes as $attribute){
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$this->putLFloat($attribute->getMinValue());
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$this->putLFloat($attribute->getMaxValue());
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$this->putLFloat($attribute->getValue());
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$this->putLFloat($attribute->getDefaultValue());
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$this->putString($attribute->getId());
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}
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}
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/**
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* Reads and returns an EntityUniqueID
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* @return int
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*/
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public function getEntityUniqueId() : int{
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return $this->getVarLong();
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}
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/**
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* Writes an EntityUniqueID
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*
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* @param int $eid
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*/
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public function putEntityUniqueId(int $eid) : void{
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$this->putVarLong($eid);
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}
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/**
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* Reads and returns an EntityRuntimeID
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* @return int
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*/
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public function getEntityRuntimeId() : int{
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return $this->getUnsignedVarLong();
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}
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/**
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* Writes an EntityUniqueID
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*
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* @param int $eid
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*/
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public function putEntityRuntimeId(int $eid) : void{
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$this->putUnsignedVarLong($eid);
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}
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/**
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* Reads an block position with unsigned Y coordinate.
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*
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* @param int &$x
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* @param int &$y
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* @param int &$z
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*/
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public function getBlockPosition(&$x, &$y, &$z) : void{
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$x = $this->getVarInt();
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$y = $this->getUnsignedVarInt();
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$z = $this->getVarInt();
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}
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/**
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* Writes a block position with unsigned Y coordinate.
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*
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* @param int $x
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* @param int $y
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* @param int $z
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*/
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public function putBlockPosition(int $x, int $y, int $z) : void{
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$this->putVarInt($x);
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$this->putUnsignedVarInt($y);
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$this->putVarInt($z);
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}
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/**
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* Reads a block position with a signed Y coordinate.
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*
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* @param int &$x
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* @param int &$y
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* @param int &$z
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*/
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public function getSignedBlockPosition(&$x, &$y, &$z) : void{
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$x = $this->getVarInt();
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$y = $this->getVarInt();
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$z = $this->getVarInt();
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}
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/**
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* Writes a block position with a signed Y coordinate.
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*
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* @param int $x
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* @param int $y
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* @param int $z
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*/
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public function putSignedBlockPosition(int $x, int $y, int $z) : void{
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$this->putVarInt($x);
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$this->putVarInt($y);
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$this->putVarInt($z);
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}
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/**
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* Reads a floating-point Vector3 object with coordinates rounded to 4 decimal places.
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*
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* @return Vector3
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*/
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public function getVector3() : Vector3{
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return new Vector3(
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$this->getRoundedLFloat(4),
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$this->getRoundedLFloat(4),
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$this->getRoundedLFloat(4)
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);
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}
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/**
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* Writes a floating-point Vector3 object, or 3x zero if null is given.
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*
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* Note: ONLY use this where it is reasonable to allow not specifying the vector.
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* For all other purposes, use the non-nullable version.
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*
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* @see NetworkBinaryStream::putVector3()
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*
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* @param Vector3|null $vector
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*/
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public function putVector3Nullable(?Vector3 $vector) : void{
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if($vector){
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$this->putVector3($vector);
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}else{
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$this->putLFloat(0.0);
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$this->putLFloat(0.0);
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$this->putLFloat(0.0);
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}
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}
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/**
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* Writes a floating-point Vector3 object
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*
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* @param Vector3 $vector
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*/
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public function putVector3(Vector3 $vector) : void{
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$this->putLFloat($vector->x);
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$this->putLFloat($vector->y);
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$this->putLFloat($vector->z);
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}
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public function getByteRotation() : float{
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return (float) ($this->getByte() * (360 / 256));
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}
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public function putByteRotation(float $rotation) : void{
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$this->putByte((int) ($rotation / (360 / 256)));
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}
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/**
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* Reads gamerules
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* TODO: implement this properly
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*
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* @return array, members are in the structure [name => [type, value]]
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*/
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public function getGameRules() : array{
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$count = $this->getUnsignedVarInt();
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$rules = [];
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for($i = 0; $i < $count; ++$i){
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$name = $this->getString();
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$type = $this->getUnsignedVarInt();
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$value = null;
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switch($type){
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case 1:
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$value = $this->getBool();
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break;
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case 2:
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$value = $this->getUnsignedVarInt();
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break;
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case 3:
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$value = $this->getLFloat();
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break;
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}
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$rules[$name] = [$type, $value];
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}
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return $rules;
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}
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/**
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* Writes a gamerule array, members should be in the structure [name => [type, value]]
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* TODO: implement this properly
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*
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* @param array $rules
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*/
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public function putGameRules(array $rules) : void{
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$this->putUnsignedVarInt(count($rules));
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foreach($rules as $name => $rule){
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$this->putString($name);
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$this->putUnsignedVarInt($rule[0]);
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switch($rule[0]){
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case 1:
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$this->putBool($rule[1]);
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break;
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case 2:
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$this->putUnsignedVarInt($rule[1]);
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break;
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case 3:
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$this->putLFloat($rule[1]);
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break;
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}
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}
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}
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/**
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* @return EntityLink
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*/
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protected function getEntityLink() : EntityLink{
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$link = new EntityLink();
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$link->fromEntityUniqueId = $this->getEntityUniqueId();
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$link->toEntityUniqueId = $this->getEntityUniqueId();
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$link->type = $this->getByte();
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$link->immediate = $this->getBool();
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return $link;
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}
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/**
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* @param EntityLink $link
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*/
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protected function putEntityLink(EntityLink $link) : void{
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$this->putEntityUniqueId($link->fromEntityUniqueId);
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$this->putEntityUniqueId($link->toEntityUniqueId);
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$this->putByte($link->type);
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$this->putBool($link->immediate);
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}
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protected function getCommandOriginData() : CommandOriginData{
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$result = new CommandOriginData();
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$result->type = $this->getUnsignedVarInt();
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$result->uuid = $this->getUUID();
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$result->requestId = $this->getString();
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if($result->type === CommandOriginData::ORIGIN_DEV_CONSOLE or $result->type === CommandOriginData::ORIGIN_TEST){
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$result->varlong1 = $this->getVarLong();
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}
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return $result;
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}
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protected function putCommandOriginData(CommandOriginData $data) : void{
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$this->putUnsignedVarInt($data->type);
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$this->putUUID($data->uuid);
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$this->putString($data->requestId);
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if($data->type === CommandOriginData::ORIGIN_DEV_CONSOLE or $data->type === CommandOriginData::ORIGIN_TEST){
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$this->putVarLong($data->varlong1);
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}
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}
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}
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