Lava.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\entity\Entity;
use pocketmine\event\entity\EntityCombustByBlockEvent;
use pocketmine\event\entity\EntityDamageByBlockEvent;
use pocketmine\event\entity\EntityDamageEvent;
use pocketmine\math\Facing;
use pocketmine\world\sound\BucketEmptyLavaSound;
use pocketmine\world\sound\BucketFillLavaSound;
use pocketmine\world\sound\Sound;
 
class Lava extends Liquid{
 
    public function getLightLevel() : int{
        return 15;
    }
 
    public function getBucketFillSound() : Sound{
        return new BucketFillLavaSound();
    }
 
    public function getBucketEmptySound() : Sound{
        return new BucketEmptyLavaSound();
    }
 
    public function tickRate() : int{
        return 30;
    }
 
    public function getFlowDecayPerBlock() : int{
        return 2; //TODO: this is 1 in the nether
    }
 
    private function getAdjacentBlocksExceptDown() : \Generator{
        foreach(Facing::ALL as $side){
            if($side === Facing::DOWN){
                continue;
            }
            yield $this->getSide($side);
        }
    }
 
    protected function checkForHarden() : bool{
        if($this->falling){
            return false;
        }
        foreach($this->getAdjacentBlocksExceptDown() as $colliding){
            if($colliding instanceof Water){
                if($this->decay === 0){
                    $this->liquidCollide($colliding, VanillaBlocks::OBSIDIAN());
                    return true;
                }elseif($this->decay <= 4){
                    $this->liquidCollide($colliding, VanillaBlocks::COBBLESTONE());
                    return true;
                }
            }
        }
 
        if($this->getSide(Facing::DOWN)->getTypeId() === BlockTypeIds::SOUL_SOIL){
            foreach($this->getAdjacentBlocksExceptDown() as $colliding){
                if($colliding->getTypeId() === BlockTypeIds::BLUE_ICE){
                    $this->liquidCollide($colliding, VanillaBlocks::BASALT());
                    return true;
                }
            }
        }
 
        return false;
    }
 
    protected function flowIntoBlock(Block $block, int $newFlowDecay, bool $falling) : void{
        if($block instanceof Water){
            $block->liquidCollide($this, VanillaBlocks::STONE());
        }else{
            parent::flowIntoBlock($block, $newFlowDecay, $falling);
        }
    }
 
    public function onEntityInside(Entity $entity) : bool{
        $ev = new EntityDamageByBlockEvent($this, $entity, EntityDamageEvent::CAUSE_LAVA, 4);
        $entity->attack($ev);
 
        //in java burns entities for 15 seconds - seems to be a parity issue in bedrock
        $ev = new EntityCombustByBlockEvent($this, $entity, 8);
        $ev->call();
        if(!$ev->isCancelled()){
            $entity->setOnFire($ev->getDuration());
        }
 
        $entity->resetFallDistance();
        return true;
    }
}