BaseBanner.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\tile\Banner as TileBanner;
use pocketmine\block\utils\BannerPatternLayer;
use pocketmine\block\utils\Colored;
use pocketmine\block\utils\ColoredTrait;
use pocketmine\block\utils\SupportType;
use pocketmine\item\Banner as ItemBanner;
use pocketmine\item\Item;
use pocketmine\item\VanillaItems;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\Player;
use pocketmine\world\BlockTransaction;
use function assert;
use function count;
 
abstract class BaseBanner extends Transparent implements Colored{
    use ColoredTrait;
 
    protected array $patterns = [];
 
    public function readStateFromWorld() : Block{
        parent::readStateFromWorld();
        $tile = $this->position->getWorld()->getTile($this->position);
        if($tile instanceof TileBanner){
            if($tile->getType() === TileBanner::TYPE_OMINOUS){
                //illager banner is implemented as a separate block, as it doesn't support base color or custom patterns
                return $this->getOminousVersion();
            }
            $this->color = $tile->getBaseColor();
            $this->setPatterns($tile->getPatterns());
        }
 
        return $this;
    }
 
    abstract protected function getOminousVersion() : Block;
 
    public function writeStateToWorld() : void{
        parent::writeStateToWorld();
        $tile = $this->position->getWorld()->getTile($this->position);
        assert($tile instanceof TileBanner);
        $tile->setBaseColor($this->color);
        $tile->setPatterns($this->patterns);
    }
 
    public function isSolid() : bool{
        return false;
    }
 
    public function getMaxStackSize() : int{
        return 16;
    }
 
    public function getPatterns() : array{
        return $this->patterns;
    }
 
    public function setPatterns(array $patterns) : self{
        foreach($patterns as $pattern){
            if(!$pattern instanceof BannerPatternLayer){
                throw new \TypeError("Array must only contain " . BannerPatternLayer::class . " objects");
            }
        }
        $this->patterns = $patterns;
        return $this;
    }
 
    protected function recalculateCollisionBoxes() : array{
        return [];
    }
 
    public function getSupportType(Facing $facing) : SupportType{
        return SupportType::NONE;
    }
 
    private function canBeSupportedBy(Block $block) : bool{
        return $block->isSolid();
    }
 
    public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
        if(!$this->canBeSupportedBy($blockReplace->getSide($this->getSupportingFace()))){
            return false;
        }
        if($item instanceof ItemBanner){
            $this->color = $item->getColor();
            $this->setPatterns($item->getPatterns());
        }
 
        return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
    }
 
    abstract protected function getSupportingFace() : Facing;
 
    public function onNearbyBlockChange() : void{
        if(!$this->canBeSupportedBy($this->getSide($this->getSupportingFace()))){
            $this->position->getWorld()->useBreakOn($this->position);
        }
    }
 
    public function getDropsForCompatibleTool(Item $item) : array{
        $drop = $this->asItem();
        if($drop instanceof ItemBanner && count($this->patterns) > 0){
            $drop->setPatterns($this->patterns);
        }
 
        return [$drop];
    }
 
    public function getPickedItem(bool $addUserData = false) : Item{
        $result = $this->asItem();
        if($addUserData && $result instanceof ItemBanner && count($this->patterns) > 0){
            $result->setPatterns($this->patterns);
        }
        return $result;
    }
 
    public function asItem() : Item{
        return VanillaItems::BANNER()->setColor($this->color);
    }
}