CameraSplineInstruction.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\camera;
 
use pmmp\encoding\Byte;
use pmmp\encoding\ByteBufferReader;
use pmmp\encoding\ByteBufferWriter;
use pmmp\encoding\LE;
use pmmp\encoding\VarInt;
use pocketmine\math\Vector2;
use pocketmine\math\Vector3;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
use function count;
 
final class CameraSplineInstruction{
 
    public function __construct(
        private float $totalTime,
        private int $easeType,
        private array $curve,
        private array $progressKeyFrames,
        private array $rotationOptions,
    ){}
 
    public function getTotalTime() : float{ return $this->totalTime; }
 
    public function getEaseType() : int{ return $this->easeType; }
 
    public function getCurve() : array{ return $this->curve; }
 
    public function getProgressKeyFrames() : array{ return $this->progressKeyFrames; }
 
    public function getRotationOptions() : array{ return $this->rotationOptions; }
 
    public static function read(ByteBufferReader $in) : self{
        $totalTime = LE::readFloat($in);
        $easeType = Byte::readUnsigned($in);
 
        $curve = [];
        $curveCount = VarInt::readUnsignedInt($in);
        for($i = 0; $i < $curveCount; ++$i){
            $curve[] = CommonTypes::getVector3($in);
        }
 
        $progressKeyFrames = [];
        $progressKeyFrameCount = VarInt::readUnsignedInt($in);
        for($i = 0; $i < $progressKeyFrameCount; ++$i){
            $progressKeyFrames[] = CommonTypes::getVector2($in);
        }
 
        $rotationOptions = [];
        $rotationOptionCount = VarInt::readUnsignedInt($in);
        for($i = 0; $i < $rotationOptionCount; ++$i){
            $rotationOptions[] = CameraRotationOption::read($in);
        }
 
        return new self($totalTime, $easeType, $curve, $progressKeyFrames, $rotationOptions);
    }
 
    public function write(ByteBufferWriter $out) : void{
        LE::writeFloat($out, $this->totalTime);
        Byte::writeUnsigned($out, $this->easeType);
 
        VarInt::writeUnsignedInt($out, count($this->curve));
        foreach($this->curve as $point){
            CommonTypes::putVector3($out, $point);
        }
 
        VarInt::writeUnsignedInt($out, count($this->progressKeyFrames));
        foreach($this->progressKeyFrames as $keyFrame){
            CommonTypes::putVector2($out, $keyFrame);
        }
 
        VarInt::writeUnsignedInt($out, count($this->rotationOptions));
        foreach($this->rotationOptions as $option){
            $option->write($out);
        }
    }
}