Removed pocketmine subdirectory, map PSR-4 style

src/block/Fire.php

@@ -0,0 +1,178 @@
+<?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\BlockDataSerializer;
+use pocketmine\entity\Entity;
+use pocketmine\entity\projectile\Arrow;
+use pocketmine\event\block\BlockBurnEvent;
+use pocketmine\event\entity\EntityCombustByBlockEvent;
+use pocketmine\event\entity\EntityDamageByBlockEvent;
+use pocketmine\event\entity\EntityDamageEvent;
+use pocketmine\item\Item;
+use pocketmine\math\Facing;
+use function min;
+use function mt_rand;
+
+class Fire extends Flowable{
+
+	/** @var int */
+	protected $age = 0;
+
+	public function __construct(BlockIdentifier $idInfo, string $name, ?BlockBreakInfo $breakInfo = null){
+		parent::__construct($idInfo, $name, $breakInfo ?? BlockBreakInfo::instant());
+	}
+
+	protected function writeStateToMeta() : int{
+		return $this->age;
+	}
+
+	public function readStateFromData(int $id, int $stateMeta) : void{
+		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta, 0, 15);
+	}
+
+	public function getStateBitmask() : int{
+		return 0b1111;
+	}
+
+	public function hasEntityCollision() : bool{
+		return true;
+	}
+
+	public function getLightLevel() : int{
+		return 15;
+	}
+
+	public function canBeReplaced() : bool{
+		return true;
+	}
+
+	public function onEntityInside(Entity $entity) : void{
+		$ev = new EntityDamageByBlockEvent($this, $entity, EntityDamageEvent::CAUSE_FIRE, 1);
+		$entity->attack($ev);
+
+		$ev = new EntityCombustByBlockEvent($this, $entity, 8);
+		if($entity instanceof Arrow){
+			$ev->setCancelled();
+		}
+		$ev->call();
+		if(!$ev->isCancelled()){
+			$entity->setOnFire($ev->getDuration());
+		}
+	}
+
+	public function getDropsForCompatibleTool(Item $item) : array{
+		return [];
+	}
+
+	public function onNearbyBlockChange() : void{
+		if(!$this->getSide(Facing::DOWN)->isSolid() and !$this->hasAdjacentFlammableBlocks()){
+			$this->getWorld()->setBlock($this, VanillaBlocks::AIR());
+		}else{
+			$this->world->scheduleDelayedBlockUpdate($this, mt_rand(30, 40));
+		}
+	}
+
+	public function ticksRandomly() : bool{
+		return true;
+	}
+
+	public function onRandomTick() : void{
+		$down = $this->getSide(Facing::DOWN);
+
+		$result = null;
+		if($this->age < 15 and mt_rand(0, 2) === 0){
+			$this->age++;
+			$result = $this;
+		}
+		$canSpread = true;
+
+		if(!$down->burnsForever()){
+			//TODO: check rain
+			if($this->age === 15){
+				if(!$down->isFlammable() and mt_rand(0, 3) === 3){ //1/4 chance to extinguish
+					$canSpread = false;
+					$result = VanillaBlocks::AIR();
+				}
+			}elseif(!$this->hasAdjacentFlammableBlocks()){
+				$canSpread = false;
+				if(!$down->isSolid() or $this->age > 3){
+					$result = VanillaBlocks::AIR();
+				}
+			}
+		}
+
+		if($result !== null){
+			$this->world->setBlock($this, $result);
+		}
+
+		$this->world->scheduleDelayedBlockUpdate($this, mt_rand(30, 40));
+
+		if($canSpread){
+			//TODO: raise upper bound for chance in humid biomes
+
+			foreach($this->getHorizontalSides() as $side){
+				$this->burnBlock($side, 300);
+			}
+
+			//vanilla uses a 250 upper bound here, but I don't think they intended to increase the chance of incineration
+			$this->burnBlock($this->getSide(Facing::UP), 350);
+			$this->burnBlock($this->getSide(Facing::DOWN), 350);
+
+			//TODO: fire spread
+		}
+	}
+
+	public function onScheduledUpdate() : void{
+		$this->onRandomTick();
+	}
+
+	private function hasAdjacentFlammableBlocks() : bool{
+		foreach(Facing::ALL as $face){
+			if($this->getSide($face)->isFlammable()){
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	private function burnBlock(Block $block, int $chanceBound) : void{
+		if(mt_rand(0, $chanceBound) < $block->getFlammability()){
+			$ev = new BlockBurnEvent($block, $this);
+			$ev->call();
+			if(!$ev->isCancelled()){
+				$block->onIncinerate();
+
+				if(mt_rand(0, $this->age + 9) < 5){ //TODO: check rain
+					$fire = clone $this;
+					$fire->age = min(15, $fire->age + (mt_rand(0, 4) >> 2));
+					$this->world->setBlock($block, $fire);
+				}else{
+					$this->world->setBlock($block, VanillaBlocks::AIR());
+				}
+			}
+		}
+	}
+}