Implement Cave Vines & Glow Berries (#5424)

src/block/CaveVines.php

@@ -0,0 +1,191 @@
+<?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\SupportType;
+use pocketmine\data\runtime\RuntimeDataDescriber;
+use pocketmine\entity\Entity;
+use pocketmine\event\block\BlockGrowEvent;
+use pocketmine\item\Fertilizer;
+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 pocketmine\world\sound\GlowBerriesPickSound;
+use function mt_rand;
+
+class CaveVines extends Flowable{
+	public const MAX_AGE = 25;
+
+	protected int $age = 0;
+	protected bool $berries = false;
+	protected bool $head = false;
+
+	protected function describeState(RuntimeDataDescriber $w) : void{
+		$w->boundedInt(5, 0, self::MAX_AGE, $this->age);
+		$w->bool($this->berries);
+		$w->bool($this->head);
+	}
+
+	public function hasBerries() : bool{ return $this->berries; }
+
+	/** @return $this */
+	public function setBerries(bool $berries) : self{
+		$this->berries = $berries;
+		return $this;
+	}
+
+	public function isHead() : bool{ return $this->head; }
+
+	/** @return $this */
+	public function setHead(bool $head) : self{
+		$this->head = $head;
+		return $this;
+	}
+
+	public function getAge() : int{
+		return $this->age;
+	}
+
+	/** @return $this */
+	public function setAge(int $age) : self{
+		if($age < 0 || $age > self::MAX_AGE){
+			throw new \InvalidArgumentException("Age must be in range 0-" . self::MAX_AGE);
+		}
+		$this->age = $age;
+		return $this;
+	}
+
+	public function canClimb() : bool{
+		return true;
+	}
+
+	public function getLightLevel() : int{
+		return $this->berries ? 14 : 0;
+	}
+
+	private function canBeSupportedBy(Block $block) : bool{
+		return $block->getSupportType(Facing::DOWN)->equals(SupportType::FULL()) || $block->hasSameTypeId($this);
+	}
+
+	public function onNearbyBlockChange() : void{
+		if(!$this->canBeSupportedBy($this->getSide(Facing::UP))){
+			$this->position->getWorld()->useBreakOn($this->position);
+		}
+	}
+
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+		if(!$this->canBeSupportedBy($blockReplace->getSide(Facing::UP))){
+			return false;
+		}
+		$this->age = mt_rand(0, self::MAX_AGE);
+		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
+	}
+
+	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+		if($this->berries){
+			$this->position->getWorld()->dropItem($this->position, $this->asItem());
+			$this->position->getWorld()->addSound($this->position, new GlowBerriesPickSound());
+
+			$this->position->getWorld()->setBlock($this->position, $this->setBerries(false));
+			return true;
+		}
+		if($item instanceof Fertilizer){
+			$ev = new BlockGrowEvent($this, (clone $this)
+				->setBerries(true)
+				->setHead(!$this->getSide(Facing::DOWN)->hasSameTypeId($this))
+			);
+			$ev->call();
+			if($ev->isCancelled()){
+				return false;
+			}
+			$item->pop();
+			$this->position->getWorld()->setBlock($this->position, $ev->getNewState());
+			return true;
+		}
+		return false;
+	}
+
+	public function onRandomTick() : void{
+		$head = !$this->getSide(Facing::DOWN)->hasSameTypeId($this);
+		if($head !== $this->head){
+			$this->position->getWorld()->setBlock($this->position, $this->setHead($head));
+		}
+
+		if($this->age < self::MAX_AGE && mt_rand(1, 10) === 1){
+			$growthPos = $this->position->getSide(Facing::DOWN);
+			$world = $growthPos->getWorld();
+			if($world->isInWorld($growthPos->getFloorX(), $growthPos->getFloorY(), $growthPos->getFloorZ())){
+				$block = $world->getBlock($growthPos);
+				if($block->getTypeId() === BlockTypeIds::AIR){
+					$ev = new BlockGrowEvent($block, VanillaBlocks::CAVE_VINES()
+						->setAge($this->age + 1)
+						->setBerries(mt_rand(1, 9) === 1)
+					);
+
+					$ev->call();
+
+					if(!$ev->isCancelled()){
+						$world->setBlock($growthPos, $ev->getNewState());
+					}
+				}
+			}
+		}
+	}
+
+	public function ticksRandomly() : bool{
+		return true;
+	}
+
+	protected function recalculateCollisionBoxes() : array{
+		return [];
+	}
+
+	public function hasEntityCollision() : bool{
+		return true;
+	}
+
+	public function onEntityInside(Entity $entity) : bool{
+		$entity->resetFallDistance();
+		return false;
+	}
+
+	public function getDropsForCompatibleTool(Item $item) : array{
+		return $this->berries ? [$this->asItem()] : [];
+	}
+
+	public function isAffectedBySilkTouch() : bool{
+		return true;
+	}
+
+	public function asItem() : Item{
+		return VanillaItems::GLOW_BERRIES();
+	}
+
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+}