CameraInstructionPacket.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 pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use pocketmine\network\mcpe\protocol\types\camera\CameraFadeInstruction;
use pocketmine\network\mcpe\protocol\types\camera\CameraFovInstruction;
use pocketmine\network\mcpe\protocol\types\camera\CameraSetInstruction;
use pocketmine\network\mcpe\protocol\types\camera\CameraSplineInstruction;
use pocketmine\network\mcpe\protocol\types\camera\CameraTargetInstruction;
 
class CameraInstructionPacket extends DataPacket implements ClientboundPacket{
    public const NETWORK_ID = ProtocolInfo::CAMERA_INSTRUCTION_PACKET;
 
    private ?CameraSetInstruction $set;
    private ?bool $clear;
    private ?CameraFadeInstruction $fade;
    private ?CameraTargetInstruction $target;
    private ?bool $removeTarget;
    private ?CameraFovInstruction $fieldOfView;
    private ?CameraSplineInstruction $spline;
    private ?int $attachToEntity;
    private ?bool $detachFromEntity;
 
    public static function create(
        ?CameraSetInstruction $set,
        ?bool $clear,
        ?CameraFadeInstruction $fade,
        ?CameraTargetInstruction $target,
        ?bool $removeTarget,
        ?CameraFovInstruction $fieldOfView,
        ?CameraSplineInstruction $spline,
        ?int $attachToEntity,
        ?bool $detachFromEntity,
    ) : self{
        $result = new self;
        $result->set = $set;
        $result->clear = $clear;
        $result->fade = $fade;
        $result->target = $target;
        $result->removeTarget = $removeTarget;
        $result->fieldOfView = $fieldOfView;
        $result->spline = $spline;
        $result->attachToEntity = $attachToEntity;
        $result->detachFromEntity = $detachFromEntity;
        return $result;
    }
 
    public function getSet() : ?CameraSetInstruction{ return $this->set; }
 
    public function getClear() : ?bool{ return $this->clear; }
 
    public function getFade() : ?CameraFadeInstruction{ return $this->fade; }
 
    public function getTarget() : ?CameraTargetInstruction{ return $this->target; }
 
    public function getRemoveTarget() : ?bool{ return $this->removeTarget; }
 
    public function getFieldOfView() : ?CameraFovInstruction{ return $this->fieldOfView; }
 
    public function getSpline() : ?CameraSplineInstruction{ return $this->spline; }
 
    public function getAttachToEntity() : ?int{ return $this->attachToEntity; }
 
    public function getDetachFromEntity() : ?bool{ return $this->detachFromEntity; }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->set = CommonTypes::readOptional($in, CameraSetInstruction::read(...));
        $this->clear = CommonTypes::readOptional($in, CommonTypes::getBool(...));
        $this->fade = CommonTypes::readOptional($in, CameraFadeInstruction::read(...));
        $this->target = CommonTypes::readOptional($in, CameraTargetInstruction::read(...));
        $this->removeTarget = CommonTypes::readOptional($in, CommonTypes::getBool(...));
        $this->fieldOfView = CommonTypes::readOptional($in, CameraFovInstruction::read(...));
        $this->spline = CommonTypes::readOptional($in, CameraSplineInstruction::read(...));
        $this->attachToEntity = CommonTypes::readOptional($in, LE::readSignedLong(...)); //WHY IS THIS NON-STANDARD?
        $this->detachFromEntity = CommonTypes::readOptional($in, CommonTypes::getBool(...));
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        CommonTypes::writeOptional($out, $this->set, fn(ByteBufferWriter $out, CameraSetInstruction $v) => $v->write($out));
        CommonTypes::writeOptional($out, $this->clear, CommonTypes::putBool(...));
        CommonTypes::writeOptional($out, $this->fade, fn(ByteBufferWriter $out, CameraFadeInstruction $v) => $v->write($out));
        CommonTypes::writeOptional($out, $this->target, fn(ByteBufferWriter $out, CameraTargetInstruction $v) => $v->write($out));
        CommonTypes::writeOptional($out, $this->removeTarget, CommonTypes::putBool(...));
        CommonTypes::writeOptional($out, $this->fieldOfView, fn(ByteBufferWriter $out, CameraFovInstruction $v) => $v->write($out));
        CommonTypes::writeOptional($out, $this->spline, fn(ByteBufferWriter $out, CameraSplineInstruction $v) => $v->write($out));
        CommonTypes::writeOptional($out, $this->attachToEntity, LE::writeSignedLong(...)); //WHY IS THIS NON-STANDARD?
        CommonTypes::writeOptional($out, $this->detachFromEntity, CommonTypes::putBool(...));
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleCameraInstruction($this);
    }
}