Implemented pitcher plants, crops and podsÂ

src/block/PitcherCrop.php

@@ -0,0 +1,105 @@
+<?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\AgeableTrait;
+use pocketmine\block\utils\BlockEventHelper;
+use pocketmine\block\utils\StaticSupportTrait;
+use pocketmine\event\block\StructureGrowEvent;
+use pocketmine\item\Fertilizer;
+use pocketmine\item\Item;
+use pocketmine\math\Axis;
+use pocketmine\math\AxisAlignedBB;
+use pocketmine\math\Facing;
+use pocketmine\math\Vector3;
+use pocketmine\player\Player;
+use pocketmine\world\BlockTransaction;
+use function mt_rand;
+
+final class PitcherCrop extends Flowable{
+	use AgeableTrait;
+	use StaticSupportTrait;
+
+	public const MAX_AGE = 2;
+
+	private function canBeSupportedAt(Block $block) : bool{
+		return $block->getSide(Facing::DOWN)->getTypeId() === BlockTypeIds::FARMLAND;
+	}
+
+	protected function recalculateCollisionBoxes() : array{
+		$widthTrim = $this->age === 0 ? 5 : 3;
+		$heightTrim = $this->age === 0 ? 13 : 11;
+		return [
+			AxisAlignedBB::one()
+				->trim(Facing::UP, $heightTrim / 16)
+				->squash(Axis::X, $widthTrim / 16)
+				->squash(Axis::Z, $widthTrim / 16)
+				->extend(Facing::DOWN, 1 / 16) //presumably this is to correct for farmland being 15/16 of a block tall
+		];
+	}
+
+	private function grow(?Player $player) : bool{
+		if($this->age > self::MAX_AGE){
+			return false;
+		}
+
+		if($this->age === self::MAX_AGE){
+			$up = $this->getSide(Facing::UP);
+			if($up->getTypeId() !== BlockTypeIds::AIR){
+				return false;
+			}
+
+			$tx = new BlockTransaction($this->position->getWorld());
+			$tx->addBlock($this->position, VanillaBlocks::DOUBLE_PITCHER_CROP()->setTop(false));
+			$tx->addBlock($this->position->up(), VanillaBlocks::DOUBLE_PITCHER_CROP()->setTop(true));
+
+			$ev = new StructureGrowEvent($this, $tx, $player);
+			$ev->call();
+
+			return !$ev->isCancelled() && $tx->apply();
+		}
+
+		return BlockEventHelper::grow($this, (clone $this)->setAge($this->age + 1), $player);
+	}
+
+	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+		if($item instanceof Fertilizer && $this->grow($player)){
+			$item->pop();
+			return true;
+		}
+
+		return false;
+	}
+
+	public function ticksRandomly() : bool{
+		return true;
+	}
+
+	public function onRandomTick() : void{
+		//TODO: the growth speed is influenced by farmland and nearby crops
+		if(mt_rand(0, 2) === 0){
+			$this->grow(null);
+		}
+	}
+}