SpruceTree.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\world\generator\object;
 
use pocketmine\block\VanillaBlocks;
use pocketmine\utils\Random;
use pocketmine\world\BlockTransaction;
use pocketmine\world\ChunkManager;
use function abs;
 
class SpruceTree extends Tree{
 
    public function __construct(){
        parent::__construct(VanillaBlocks::SPRUCE_LOG(), VanillaBlocks::SPRUCE_LEAVES(), 10);
    }
 
    protected function generateTrunkHeight(Random $random) : int{
        return $this->treeHeight - $random->nextBoundedInt(3);
    }
 
    public function getBlockTransaction(ChunkManager $world, int $x, int $y, int $z, Random $random) : ?BlockTransaction{
        $this->treeHeight = $random->nextBoundedInt(4) + 6;
        return parent::getBlockTransaction($world, $x, $y, $z, $random);
    }
 
    protected function placeCanopy(int $x, int $y, int $z, Random $random, BlockTransaction $transaction) : void{
        $topSize = $this->treeHeight - (1 + $random->nextBoundedInt(2));
        $lRadius = 2 + $random->nextBoundedInt(2);
        $radius = $random->nextBoundedInt(2);
        $maxR = 1;
        $minR = 0;
 
        for($yy = 0; $yy <= $topSize; ++$yy){
            $yyy = $y + $this->treeHeight - $yy;
 
            for($xx = $x - $radius; $xx <= $x + $radius; ++$xx){
                $xOff = abs($xx - $x);
                for($zz = $z - $radius; $zz <= $z + $radius; ++$zz){
                    $zOff = abs($zz - $z);
                    if($xOff === $radius && $zOff === $radius && $radius > 0){
                        continue;
                    }
 
                    if(!$transaction->fetchBlockAt($xx, $yyy, $zz)->isSolid()){
                        $transaction->addBlockAt($xx, $yyy, $zz, $this->leafBlock);
                    }
                }
            }
 
            if($radius >= $maxR){
                $radius = $minR;
                $minR = 1;
                if(++$maxR > $lRadius){
                    $maxR = $lRadius;
                }
            }else{
                ++$radius;
            }
        }
    }
}