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Block: introduce logic for face support types (#4886)

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fixes #4856
fixes #458
fixes #4529
fixes #3299

Added API method Block::getSupportType(Facing) : SupportType
Added SupportType enum
fixes torch, lantern, door etc. placement on slabs and upside-down stairs
This commit is contained in:
ShockedPlot7560
2022-05-20 16:18:34 +02:00
committed by GitHub
parent 6d941640a9
commit 6482aa7c64
52 changed files with 427 additions and 55 deletions
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16
src/block/Lantern.php
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@ -23,6 +23,7 @@ declare(strict_types=1);
namespace pocketmine\block;
use pocketmine\block\utils\SupportType;
use pocketmine\item\Item;
use pocketmine\math\Axis;
use pocketmine\math\AxisAlignedBB;
@ -72,22 +73,27 @@ class Lantern extends Transparent{
];
}
protected function canAttachTo(Block $b) : bool{
return !$b->isTransparent();
public function getSupportType(int $facing) : SupportType{
return SupportType::NONE();
}
public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
if(!$this->canAttachTo($this->position->getWorld()->getBlock($blockReplace->getPosition()->up())) && !$this->canAttachTo($this->position->getWorld()->getBlock($blockReplace->getPosition()->down()))){
if(!$this->canBeSupportedBy($blockReplace->getSide(Facing::UP), Facing::DOWN) && !$this->canBeSupportedBy($blockReplace->getSide(Facing::DOWN), Facing::UP)){
return false;
}
$this->hanging = ($face === Facing::DOWN || !$this->canAttachTo($this->position->getWorld()->getBlock($blockReplace->getPosition()->down())));
$this->hanging = ($face === Facing::DOWN || !$this->canBeSupportedBy($this->position->getWorld()->getBlock($blockReplace->getPosition()->down()), Facing::UP));
return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
}
public function onNearbyBlockChange() : void{
if(!$this->canAttachTo($this->position->getWorld()->getBlock($this->hanging ? $this->position->up() : $this->position->down()))){
$face = $this->hanging ? Facing::UP : Facing::DOWN;
if(!$this->canBeSupportedBy($this->getSide($face), Facing::opposite($face))){
$this->position->getWorld()->useBreakOn($this->position);
}
}
private function canBeSupportedBy(Block $block, int $face) : bool{
return $block->getSupportType($face)->hasCenterSupport();
}
}