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https://github.com/pmmp/PocketMine-MP.git
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Bump to API 3.0.0-ALPHA2 - READ DESCRIPTION!
Refactored level\format\generic\GenericChunk -> level\format\Chunk. Re-added support for async chunk sending Refactored most Level IO into new namespaces for more organisation Removed LevelDB loader completely (will be re-added at a later date)
This commit is contained in:
Dylan K. Taylor
225
src/pocketmine/level/format/SubChunk.php
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225
src/pocketmine/level/format/SubChunk.php
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<?php
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/*
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*
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* ____ _ _ __ __ _ __ __ ____
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* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
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* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
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* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
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* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* @author PocketMine Team
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* @link http://www.pocketmine.net/
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*
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*
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*/
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declare(strict_types = 1);
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namespace pocketmine\level\format;
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class SubChunk{
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protected $ids;
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protected $data;
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protected $blockLight;
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protected $skyLight;
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private static function assignData(&$target, $data, $length){
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if(strlen($data) !== $length){
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assert($data === "", "Invalid non-zero length given, expected $length, got " . strlen($data));
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$target = str_repeat("\x00", $length);
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}else{
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$target = $data;
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}
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}
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public function __construct(string $ids = "", string $data = "", string $skyLight = "", string $blockLight = ""){
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self::assignData($this->ids, $ids, 4096);
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self::assignData($this->data, $data, 2048);
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self::assignData($this->skyLight, $skyLight, 2048);
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self::assignData($this->blockLight, $blockLight, 2048);
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}
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public function isEmpty() : bool{
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assert(strlen($this->ids) === 4096, "Wrong length of ID array, expecting 4096 bytes, got " . strlen($this->ids));
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return substr_count($this->ids, "\x00") === 4096;
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}
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public function getBlockId(int $x, int $y, int $z) : int{
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return ord($this->ids{($x << 8) | ($z << 4) | $y});
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}
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public function setBlockId(int $x, int $y, int $z, int $id) : bool{
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$this->ids{($x << 8) | ($z << 4) | $y} = chr($id);
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return true;
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}
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public function getBlockData(int $x, int $y, int $z) : int{
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$m = ord($this->data{($x << 7) + ($z << 3) + ($y >> 1)});
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if(($y & 1) === 0){
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return $m & 0x0f;
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}else{
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return $m >> 4;
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}
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}
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public function setBlockData(int $x, int $y, int $z, int $data) : bool{
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$i = ($x << 7) | ($z << 3) | ($y >> 1);
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if(($y & 1) === 0){
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$this->data{$i} = chr((ord($this->data{$i}) & 0xf0) | ($data & 0x0f));
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}else{
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$this->data{$i} = chr((($data & 0x0f) << 4) | (ord($this->data{$i}) & 0x0f));
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}
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return true;
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}
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public function getFullBlock(int $x, int $y, int $z) : int{
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$i = ($x << 8) | ($z << 4) | $y;
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if(($y & 1) === 0){
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return (ord($this->ids{$i}) << 4) | (ord($this->data{$i >> 1}) & 0x0f);
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}else{
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return (ord($this->ids{$i}) << 4) | (ord($this->data{$i >> 1}) >> 4);
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}
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}
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public function setBlock(int $x, int $y, int $z, $id = null, $data = null) : bool{
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$i = ($x << 8) | ($z << 4) | $y;
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$changed = false;
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if($id !== null){
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$block = chr($id);
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if($this->ids{$i} !== $block){
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$this->ids{$i} = $block;
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$changed = true;
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}
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}
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if($data !== null){
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$i >>= 1;
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$byte = ord($this->data{$i});
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if(($y & 1) === 0){
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$this->data{$i} = chr(($byte & 0xf0) | ($data & 0x0f));
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}else{
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$this->data{$i} = chr((($data & 0x0f) << 4) | ($byte & 0x0f));
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}
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if($this->data{$i} !== $byte){
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$changed = true;
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}
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}
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return $changed;
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}
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public function getBlockLight(int $x, int $y, int $z) : int{
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$byte = ord($this->blockLight{($x << 7) + ($z << 3) + ($y >> 1)});
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if(($y & 1) === 0){
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return $byte & 0x0f;
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}else{
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return $byte >> 4;
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}
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}
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public function setBlockLight(int $x, int $y, int $z, int $level) : bool{
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$i = ($x << 7) + ($z << 3) + ($y >> 1);
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$byte = ord($this->blockLight{$i});
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if(($y & 1) === 0){
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$this->blockLight{$i} = chr(($byte & 0xf0) | ($level & 0x0f));
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}else{
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$this->blockLight{$i} = chr((($level & 0x0f) << 4) | ($byte & 0x0f));
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}
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return true;
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}
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public function getBlockSkyLight(int $x, int $y, int $z) : int{
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$byte = ord($this->skyLight{($x << 7) + ($z << 3) + ($y >> 1)});
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if(($y & 1) === 0){
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return $byte & 0x0f;
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}else{
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return $byte >> 4;
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}
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}
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public function setBlockSkyLight(int $x, int $y, int $z, int $level) : bool{
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$i = ($x << 7) + ($z << 3) + ($y >> 1);
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$byte = ord($this->skyLight{$i});
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if(($y & 1) === 0){
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$this->skyLight{$i} = chr(($byte & 0xf0) | ($level & 0x0f));
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}else{
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$this->skyLight{$i} = chr((($level & 0x0f) << 4) | ($byte & 0x0f));
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}
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return true;
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}
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public function getHighestBlockAt(int $x, int $z) : int{
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for($y = 15; $y >= 0; --$y){
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if($this->ids{($x << 8) | ($z << 4) | $y} !== "\x00"){
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return $y;
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}
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}
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return -1; //highest block not in this subchunk
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}
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public function getBlockIdColumn(int $x, int $z) : string{
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return substr($this->ids, (($x << 8) | ($z << 4)), 16);
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}
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public function getBlockDataColumn(int $x, int $z) : string{
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return substr($this->data, (($x << 7) | ($z << 3)), 8);
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}
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public function getBlockLightColumn(int $x, int $z) : string{
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return substr($this->blockLight, (($x << 7) | ($z << 3)), 8);
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}
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public function getSkyLightColumn(int $x, int $z) : string{
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return substr($this->skyLight, (($x << 7) | ($z << 3)), 8);
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}
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public function getBlockIdArray() : string{
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assert(strlen($this->ids) === 4096, "Wrong length of ID array, expecting 4096 bytes, got " . strlen($this->ids));
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return $this->ids;
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}
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public function getBlockDataArray() : string{
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assert(strlen($this->data) === 2048, "Wrong length of data array, expecting 2048 bytes, got " . strlen($this->data));
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return $this->data;
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}
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public function getSkyLightArray() : string{
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assert(strlen($this->skyLight) === 2048, "Wrong length of skylight array, expecting 2048 bytes, got " . strlen($this->skyLight));
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return $this->skyLight;
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}
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public function getBlockLightArray() : string{
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assert(strlen($this->blockLight) === 2048, "Wrong length of light array, expecting 2048 bytes, got " . strlen($this->blockLight));
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return $this->blockLight;
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}
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public function networkSerialize() : string{
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// storage version, ids, data, skylight, blocklight
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return "\x00" . $this->ids . $this->data . $this->skyLight . $this->blockLight;
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}
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public function fastSerialize() : string{
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return
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$this->ids .
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$this->data .
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$this->skyLight .
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$this->blockLight;
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}
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public static function fastDeserialize(string $data) : SubChunk{
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return new SubChunk(
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substr($data, 0, 4096), //ids
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substr($data, 4096, 2048), //data
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substr($data, 6144, 2048), //sky light
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substr($data, 8192, 2048) //block light
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);
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}
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}
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