MobHead.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\MobHead as TileMobHead;
use pocketmine\block\utils\MobHeadType;
use pocketmine\data\runtime\RuntimeDataDescriber;
use pocketmine\item\Item;
use pocketmine\math\AxisAlignedBB;
use pocketmine\math\Facing;
use pocketmine\math\Vector3;
use pocketmine\player\Player;
use pocketmine\world\BlockTransaction;
use function assert;
use function floor;
 
class MobHead extends Flowable{
    public const MIN_ROTATION = 0;
    public const MAX_ROTATION = 15;
 
    protected MobHeadType $mobHeadType = MobHeadType::SKELETON;
 
    protected int $facing = Facing::NORTH;
    protected int $rotation = self::MIN_ROTATION; //TODO: split this into floor skull and wall skull handling
 
    public function describeBlockItemState(RuntimeDataDescriber $w) : void{
        $w->enum($this->mobHeadType);
    }
 
    protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
        $w->facingExcept($this->facing, Facing::DOWN);
    }
 
    public function readStateFromWorld() : Block{
        parent::readStateFromWorld();
        $tile = $this->position->getWorld()->getTile($this->position);
        if($tile instanceof TileMobHead){
            $this->mobHeadType = $tile->getMobHeadType();
            $this->rotation = $tile->getRotation();
        }
 
        return $this;
    }
 
    public function writeStateToWorld() : void{
        parent::writeStateToWorld();
        //extra block properties storage hack
        $tile = $this->position->getWorld()->getTile($this->position);
        assert($tile instanceof TileMobHead);
        $tile->setRotation($this->rotation);
        $tile->setMobHeadType($this->mobHeadType);
    }
 
    public function getMobHeadType() : MobHeadType{
        return $this->mobHeadType;
    }
 
    public function setMobHeadType(MobHeadType $mobHeadType) : self{
        $this->mobHeadType = $mobHeadType;
        return $this;
    }
 
    public function getFacing() : int{ return $this->facing; }
 
    public function setFacing(int $facing) : self{
        if($facing === Facing::DOWN){
            throw new \InvalidArgumentException("Skull may not face DOWN");
        }
        $this->facing = $facing;
        return $this;
    }
 
    public function getRotation() : int{ return $this->rotation; }
 
    public function setRotation(int $rotation) : self{
        if($rotation < self::MIN_ROTATION || $rotation > self::MAX_ROTATION){
            throw new \InvalidArgumentException("Rotation must be in range " . self::MIN_ROTATION . " ... " . self::MAX_ROTATION);
        }
        $this->rotation = $rotation;
        return $this;
    }
 
    protected function recalculateCollisionBoxes() : array{
        $collisionBox = AxisAlignedBB::one()
            ->contract(0.25, 0, 0.25)
            ->trim(Facing::UP, 0.5);
        if($this->facing !== Facing::UP){
            $collisionBox = $collisionBox
                ->offsetTowards(Facing::opposite($this->facing), 0.25)
                ->offsetTowards(Facing::UP, 0.25);
        }
        return [$collisionBox];
    }
 
    public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
        if($face === Facing::DOWN){
            return false;
        }
 
        $this->facing = $face;
        if($player !== null && $face === Facing::UP){
            $this->rotation = ((int) floor(($player->getLocation()->getYaw() * 16 / 360) + 0.5)) & 0xf;
        }
        return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
    }
}