DaylightSensor.php

<?php
 
/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program 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.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */
 
declare(strict_types=1);
 
namespace pocketmine\block;
 
use pocketmine\block\utils\AnalogRedstoneSignalEmitter;
use pocketmine\block\utils\AnalogRedstoneSignalEmitterTrait;
use pocketmine\block\utils\SupportType;
use pocketmine\data\runtime\RuntimeDataDescriber;
use pocketmine\item\Item;
use pocketmine\math\AxisAlignedBB;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\Player;
use function cos;
use function max;
use function round;
use const M_PI;
 
class DaylightSensor extends Transparent implements AnalogRedstoneSignalEmitter{
    use AnalogRedstoneSignalEmitterTrait;
 
    protected bool $inverted = false;
 
    protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
        $w->boundedIntAuto(0, 15, $this->signalStrength);
        $w->bool($this->inverted);
    }
 
    public function isInverted() : bool{
        return $this->inverted;
    }
 
    public function setInverted(bool $inverted = true) : self{
        $this->inverted = $inverted;
        return $this;
    }
 
    public function getFuelTime() : int{
        return 300;
    }
 
    protected function recalculateCollisionBoxes() : array{
        return [AxisAlignedBB::one()->trim(Facing::UP, 10 / 16)];
    }
 
    public function getSupportType(int $facing) : SupportType{
        return SupportType::NONE;
    }
 
    public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
        $this->inverted = !$this->inverted;
        $this->signalStrength = $this->recalculateSignalStrength();
        $this->position->getWorld()->setBlock($this->position, $this);
        return true;
    }
 
    public function onScheduledUpdate() : void{
        $world = $this->position->getWorld();
        $signalStrength = $this->recalculateSignalStrength();
        if($this->signalStrength !== $signalStrength){
            $this->signalStrength = $signalStrength;
            $world->setBlock($this->position, $this);
        }
        $world->scheduleDelayedBlockUpdate($this->position, 20);
    }
 
    private function recalculateSignalStrength() : int{
        $world = $this->position->getWorld();
        $lightLevel = $world->getRealBlockSkyLightAt($this->position->x, $this->position->y, $this->position->z);
        if($this->inverted){
            return 15 - $lightLevel;
        }
 
        $sunAngle = $world->getSunAnglePercentage();
        return max(0, (int) round($lightLevel * cos(($sunAngle + ((($sunAngle < 0.5 ? 0 : 1) - $sunAngle) / 5)) * 2 * M_PI)));
    }
 
    //TODO
}