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https://github.com/pmmp/PocketMine-MP.git
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94 lines
2.9 KiB
PHP
94 lines
2.9 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\entity;
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use pocketmine\math\Vector3;
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use pocketmine\nbt\NBT;
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use pocketmine\nbt\tag\CompoundTag;
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use pocketmine\nbt\tag\DoubleTag;
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use pocketmine\nbt\tag\FloatTag;
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use pocketmine\nbt\tag\ListTag;
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use pocketmine\world\World;
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use function count;
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final class EntityDataHelper{
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private function __construct(){
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//NOOP
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}
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public static function parseLocation(CompoundTag $nbt, World $world) : Location{
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$pos = self::parseVec3($nbt, "Pos", false);
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$yawPitch = $nbt->getTag("Rotation");
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if(!($yawPitch instanceof ListTag) or $yawPitch->getTagType() !== NBT::TAG_Float){
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throw new \UnexpectedValueException("'Rotation' should be a List<Float>");
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}
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/** @var FloatTag[] $values */
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$values = $yawPitch->getValue();
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if(count($values) !== 2){
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throw new \UnexpectedValueException("Expected exactly 2 entries for 'Rotation'");
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}
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return Location::fromObject($pos, $world, $values[0]->getValue(), $values[1]->getValue());
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}
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public static function parseVec3(CompoundTag $nbt, string $tagName, bool $optional) : Vector3{
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$pos = $nbt->getTag($tagName);
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if($pos === null and $optional){
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return new Vector3(0, 0, 0);
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}
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if(!($pos instanceof ListTag) or $pos->getTagType() !== NBT::TAG_Double){
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throw new \UnexpectedValueException("'$tagName' should be a List<Double>");
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}
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/** @var DoubleTag[] $values */
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$values = $pos->getValue();
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if(count($values) !== 3){
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throw new \UnexpectedValueException("Expected exactly 3 entries in '$tagName' tag");
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}
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return new Vector3($values[0]->getValue(), $values[1]->getValue(), $values[2]->getValue());
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}
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/**
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* Helper function which creates minimal NBT needed to spawn an entity.
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*/
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public static function createBaseNBT(Vector3 $pos, ?Vector3 $motion = null, float $yaw = 0.0, float $pitch = 0.0) : CompoundTag{
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return CompoundTag::create()
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->setTag("Pos", new ListTag([
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new DoubleTag($pos->x),
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new DoubleTag($pos->y),
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new DoubleTag($pos->z)
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]))
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->setTag("Motion", new ListTag([
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new DoubleTag($motion !== null ? $motion->x : 0.0),
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new DoubleTag($motion !== null ? $motion->y : 0.0),
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new DoubleTag($motion !== null ? $motion->z : 0.0)
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]))
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->setTag("Rotation", new ListTag([
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new FloatTag($yaw),
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new FloatTag($pitch)
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]));
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}
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}
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