BigDripleafHead.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\DripleafState;
use pocketmine\data\runtime\RuntimeDataDescriber;
use pocketmine\entity\Entity;
use pocketmine\entity\projectile\Projectile;
use pocketmine\math\AxisAlignedBB;
use pocketmine\math\Facing;
use pocketmine\math\RayTraceResult;
use pocketmine\world\sound\DripleafTiltDownSound;
use pocketmine\world\sound\DripleafTiltUpSound;
 
class BigDripleafHead extends BaseBigDripleaf{
 
    protected DripleafState $leafState = DripleafState::STABLE;
 
    protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
        parent::describeBlockOnlyState($w);
        $w->enum($this->leafState);
    }
 
    protected function isHead() : bool{
        return true;
    }
 
    public function getLeafState() : DripleafState{
        return $this->leafState;
    }
 
    public function setLeafState(DripleafState $leafState) : self{
        $this->leafState = $leafState;
        return $this;
    }
 
    public function hasEntityCollision() : bool{
        return true;
    }
 
    private function setTiltAndScheduleTick(DripleafState $tilt) : void{
        $this->position->getWorld()->setBlock($this->position, $this->setLeafState($tilt));
        $delay = $tilt->getScheduledUpdateDelayTicks();
        if($delay !== null){
            $this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, $delay);
        }
    }
 
    private function getLeafTopOffset() : float{
        return match($this->leafState){
            DripleafState::STABLE, DripleafState::UNSTABLE => 1 / 16,
            DripleafState::PARTIAL_TILT => 3 / 16,
            default => 0
        };
    }
 
    public function onEntityInside(Entity $entity) : bool{
        if(!$entity instanceof Projectile && $this->leafState === DripleafState::STABLE){
            //the entity must be standing on top of the leaf - do not collapse if the entity is standing underneath
            $intersection = AxisAlignedBB::one()
                ->offset($this->position->x, $this->position->y, $this->position->z)
                ->trim(Facing::DOWN, 1 - $this->getLeafTopOffset());
            if($entity->getBoundingBox()->intersectsWith($intersection)){
                $this->setTiltAndScheduleTick(DripleafState::UNSTABLE);
                return false;
            }
        }
        return true;
    }
 
    public function onProjectileHit(Projectile $projectile, RayTraceResult $hitResult) : void{
        if($this->leafState !== DripleafState::FULL_TILT){
            $this->setTiltAndScheduleTick(DripleafState::FULL_TILT);
            $this->position->getWorld()->addSound($this->position, new DripleafTiltDownSound());
        }
    }
 
    public function onScheduledUpdate() : void{
        if($this->leafState !== DripleafState::STABLE){
            if($this->leafState === DripleafState::FULL_TILT){
                $this->position->getWorld()->setBlock($this->position, $this->setLeafState(DripleafState::STABLE));
                $this->position->getWorld()->addSound($this->position, new DripleafTiltUpSound());
            }else{
                $this->setTiltAndScheduleTick(match($this->leafState){
                    DripleafState::UNSTABLE => DripleafState::PARTIAL_TILT,
                    DripleafState::PARTIAL_TILT => DripleafState::FULL_TILT,
                });
                $this->position->getWorld()->addSound($this->position, new DripleafTiltDownSound());
            }
        }
    }
 
    protected function recalculateCollisionBoxes() : array{
        if($this->leafState !== DripleafState::FULL_TILT){
            return [
                AxisAlignedBB::one()
                    ->trim(Facing::DOWN, 11 / 16)
                    ->trim(Facing::UP, $this->getLeafTopOffset())
            ];
        }
        return [];
    }
}