Removed pocketmine subdirectory, map PSR-4 style

src/world/format/io/region/PMAnvil.php

@@ -0,0 +1,53 @@
+<?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\world\format\io\region;
+
+use pocketmine\block\BlockLegacyIds;
+use pocketmine\nbt\tag\CompoundTag;
+use pocketmine\world\format\io\SubChunkConverter;
+use pocketmine\world\format\SubChunk;
+
+/**
+ * This format is exactly the same as the PC Anvil format, with the only difference being that the stored data order
+ * is XZY instead of YZX for more performance loading and saving worlds.
+ */
+class PMAnvil extends RegionWorldProvider{
+	use LegacyAnvilChunkTrait;
+
+	protected function deserializeSubChunk(CompoundTag $subChunk) : SubChunk{
+		return new SubChunk(BlockLegacyIds::AIR << 4, [SubChunkConverter::convertSubChunkXZY($subChunk->getByteArray("Blocks"), $subChunk->getByteArray("Data"))]);
+	}
+
+	protected static function getRegionFileExtension() : string{
+		return "mcapm";
+	}
+
+	protected static function getPcWorldFormatVersion() : int{
+		return -1; //Not a PC format, only PocketMine-MP
+	}
+
+	public function getWorldHeight() : int{
+		return 256;
+	}
+}