MobEffectPacket.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\Byte;
use pmmp\encoding\ByteBufferReader;
use pmmp\encoding\ByteBufferWriter;
use pmmp\encoding\VarInt;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
 
class MobEffectPacket extends DataPacket implements ClientboundPacket{
    public const NETWORK_ID = ProtocolInfo::MOB_EFFECT_PACKET;
 
    public const EVENT_ADD = 1;
    public const EVENT_MODIFY = 2;
    public const EVENT_REMOVE = 3;
 
    public int $actorRuntimeId;
    public int $eventId;
    public int $effectId;
    public int $amplifier = 0;
    public bool $particles = true;
    public int $duration = 0;
    public int $tick = 0;
 
    public static function create(
        int $actorRuntimeId,
        int $eventId,
        int $effectId,
        int $amplifier,
        bool $particles,
        int $duration,
        int $tick,
    ) : self{
        $result = new self;
        $result->actorRuntimeId = $actorRuntimeId;
        $result->eventId = $eventId;
        $result->effectId = $effectId;
        $result->amplifier = $amplifier;
        $result->particles = $particles;
        $result->duration = $duration;
        $result->tick = $tick;
        return $result;
    }
 
    public static function add(int $actorRuntimeId, bool $replace, int $effectId, int $amplifier, bool $particles, int $duration, int $tick) : self{
        return self::create($actorRuntimeId, $replace ? self::EVENT_MODIFY : self::EVENT_ADD, $effectId, $amplifier, $particles, $duration, $tick);
    }
 
    public static function remove(int $actorRuntimeId, int $effectId, int $tick) : self{
        return self::create($actorRuntimeId, self::EVENT_REMOVE, $effectId, 0, false, 0, $tick);
    }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->actorRuntimeId = CommonTypes::getActorRuntimeId($in);
        $this->eventId = Byte::readUnsigned($in);
        $this->effectId = VarInt::readSignedInt($in);
        $this->amplifier = VarInt::readSignedInt($in);
        $this->particles = CommonTypes::getBool($in);
        $this->duration = VarInt::readSignedInt($in);
        $this->tick = VarInt::readUnsignedLong($in);
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        CommonTypes::putActorRuntimeId($out, $this->actorRuntimeId);
        Byte::writeUnsigned($out, $this->eventId);
        VarInt::writeSignedInt($out, $this->effectId);
        VarInt::writeSignedInt($out, $this->amplifier);
        CommonTypes::putBool($out, $this->particles);
        VarInt::writeSignedInt($out, $this->duration);
        VarInt::writeUnsignedLong($out, $this->tick);
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleMobEffect($this);
    }
}