Candle.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\CandleTrait;
use pocketmine\block\utils\Lightable;
use pocketmine\block\utils\SupportType;
use pocketmine\data\runtime\RuntimeDataDescriber;
use pocketmine\item\Item;
use pocketmine\math\Axis;
use pocketmine\math\AxisAlignedBB;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\Player;
use pocketmine\utils\AssumptionFailedError;
use pocketmine\world\BlockTransaction;
 
class Candle extends Transparent implements Lightable{
    use CandleTrait {
        describeBlockOnlyState as encodeLitState;
        getLightLevel as getBaseLightLevel;
    }
 
    public const MIN_COUNT = 1;
    public const MAX_COUNT = 4;
 
    private int $count = self::MIN_COUNT;
 
    protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
        $this->encodeLitState($w);
        $w->boundedIntAuto(self::MIN_COUNT, self::MAX_COUNT, $this->count);
    }
 
    public function getCount() : int{ return $this->count; }
 
    public function setCount(int $count) : self{
        if($count < self::MIN_COUNT || $count > self::MAX_COUNT){
            throw new \InvalidArgumentException("Count must be in range " . self::MIN_COUNT . " ... " . self::MAX_COUNT);
        }
        $this->count = $count;
        return $this;
    }
 
    public function getLightLevel() : int{
        return $this->getBaseLightLevel() * $this->count;
    }
 
    protected function recalculateCollisionBoxes() : array{
        return [
            (match($this->count){
                1 => AxisAlignedBB::one()
                    ->squashedCopy(Axis::X, 7 / 16)
                    ->squashedCopy(Axis::Z, 7 / 16),
                2 => AxisAlignedBB::one()
                    ->squashedCopy(Axis::X, 5 / 16)
                    ->trimmedCopy(Facing::NORTH, 7 / 16) //0.3 thick on the Z axis
                    ->trimmedCopy(Facing::SOUTH, 6 / 16),
                3 => AxisAlignedBB::one()
                    ->trimmedCopy(Facing::WEST, 5 / 16)
                    ->trimmedCopy(Facing::EAST, 6 / 16)
                    ->trimmedCopy(Facing::NORTH, 6 / 16)
                    ->trimmedCopy(Facing::SOUTH, 5 / 16),
                4 => AxisAlignedBB::one()
                    ->squashedCopy(Axis::X, 5 / 16)
                    ->trimmedCopy(Facing::NORTH, 5 / 16)
                    ->trimmedCopy(Facing::SOUTH, 6 / 16),
                default => throw new AssumptionFailedError("Unreachable")
            })->trimmedCopy(Facing::UP, 10 / 16)
        ];
    }
 
    public function getSupportType(Facing $facing) : SupportType{
        return SupportType::NONE;
    }
 
    protected function getCandleIfCompatibleType(Block $block) : ?Candle{
        return $block instanceof Candle && $block->hasSameTypeId($this) ? $block : null;
    }
 
    public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector, Facing $face, bool $isClickedBlock) : bool{
        $candle = $this->getCandleIfCompatibleType($blockReplace);
        return $candle !== null ? $candle->count < self::MAX_COUNT : parent::canBePlacedAt($blockReplace, $clickVector, $face, $isClickedBlock);
    }
 
    public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
        if(!$blockReplace->getAdjacentSupportType(Facing::DOWN)->hasCenterSupport()){
            return false;
        }
        $existing = $this->getCandleIfCompatibleType($blockReplace);
        if($existing !== null){
            if($existing->count >= self::MAX_COUNT){
                return false;
            }
 
            $this->count = $existing->count + 1;
            $this->lit = $existing->lit;
        }
        return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
    }
 
    public function getDropsForCompatibleTool(Item $item) : array{
        return [$this->asItem()->setCount($this->count)];
    }
}