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PocketMine-MP/src/pmf/Level.php
Shoghi Cervantes 4002d3013d More OCD
2014-01-28 11:36:18 +01:00

523 lines
15 KiB
PHP
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<?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/
*
*
*/
define("PMF_CURRENT_LEVEL_VERSION", 0x00);
class PMFLevel extends PMF{
private $levelData = array();
private $locationTable = array();
public $isLoaded = true;
private $log = 4;
private $payloadOffset = 0;
private $chunks = array();
private $chunkChange = array();
public function getData($index){
if(!isset($this->levelData[$index])){
return false;
}
return ($this->levelData[$index]);
}
public function setData($index, $data){
if(!isset($this->levelData[$index])){
return false;
}
$this->levelData[$index] = $data;
return true;
}
public function close(){
$chunks = null;
unset($chunks, $chunkChange, $locationTable);
parent::close();
}
public function __construct($file, $blank = false){
if(is_array($blank)){
$this->create($file, 0);
$this->levelData = $blank;
$this->createBlank();
$this->isLoaded = true;
$this->log = (int) ((string) log($this->levelData["width"], 2));
}else{
if($this->load($file) !== false){
$this->parseInfo();
if($this->parseLevel() === false){
$this->isLoaded = false;
}else{
$this->isLoaded = true;
$this->log = (int) ((string) log($this->levelData["width"], 2));
}
}else{
$this->isLoaded = false;
}
}
}
public function saveData($locationTable = true){
$this->levelData["version"] = PMF_CURRENT_LEVEL_VERSION;
@ftruncate($this->fp, 5);
$this->seek(5);
$this->write(chr($this->levelData["version"]));
$this->write(Utils::writeShort(strlen($this->levelData["name"])).$this->levelData["name"]);
$this->write(Utils::writeInt($this->levelData["seed"]));
$this->write(Utils::writeInt($this->levelData["time"]));
$this->write(Utils::writeFloat($this->levelData["spawnX"]));
$this->write(Utils::writeFloat($this->levelData["spawnY"]));
$this->write(Utils::writeFloat($this->levelData["spawnZ"]));
$this->write(chr($this->levelData["width"]));
$this->write(chr($this->levelData["height"]));
$extra = gzdeflate($this->levelData["extra"], PMF_LEVEL_DEFLATE_LEVEL);
$this->write(Utils::writeShort(strlen($extra)).$extra);
$this->payloadOffset = ftell($this->fp);
if($locationTable !== false){
$this->writeLocationTable();
}
}
private function createBlank(){
$this->saveData(false);
$this->locationTable = array();
$cnt = pow($this->levelData["width"], 2);
@mkdir(dirname($this->file)."/chunks/", 0755);
for($index = 0; $index < $cnt; ++$index){
$this->chunks[$index] = false;
$this->chunkChange[$index] = false;
$this->locationTable[$index] = array(
0 => 0,
);
$this->write(Utils::writeShort(0));
$X = $Z = null;
$this->getXZ($index, $X, $Z);
@file_put_contents($this->getChunkPath($X, $Z), gzdeflate("", PMF_LEVEL_DEFLATE_LEVEL));
}
if(!file_exists(dirname($this->file)."/entities.yml")){
$entities = new Config(dirname($this->file)."/entities.yml", CONFIG_YAML);
$entities->save();
}
if(!file_exists(dirname($this->file)."/tiles.yml")){
$tiles = new Config(dirname($this->file)."/tiles.yml", CONFIG_YAML);
$tiles->save();
}
}
protected function parseLevel(){
if($this->getType() !== 0x00){
return false;
}
$this->seek(5);
$this->levelData["version"] = ord($this->read(1));
if($this->levelData["version"] > PMF_CURRENT_LEVEL_VERSION){
return false;
}
$this->levelData["name"] = $this->read(Utils::readShort($this->read(2), false));
$this->levelData["seed"] = Utils::readInt($this->read(4));
$this->levelData["time"] = Utils::readInt($this->read(4));
$this->levelData["spawnX"] = Utils::readFloat($this->read(4));
$this->levelData["spawnY"] = Utils::readFloat($this->read(4));
$this->levelData["spawnZ"] = Utils::readFloat($this->read(4));
$this->levelData["width"] = ord($this->read(1));
$this->levelData["height"] = ord($this->read(1));
if(($this->levelData["width"] !== 16 and $this->levelData["width"] !== 32) or $this->levelData["height"] !== 8){
return false;
}
$lastseek = ftell($this->fp);
if(($len = $this->read(2)) === false or ($this->levelData["extra"] = @gzinflate($this->read(Utils::readShort($len, false)))) === false){ //Corruption protection
console("[NOTICE] Empty/corrupt location table detected, forcing recovery");
fseek($this->fp, $lastseek);
$c = gzdeflate("");
$this->write(Utils::writeShort(strlen($c)).$c);
$this->payloadOffset = ftell($this->fp);
$this->levelData["extra"] = "";
$cnt = pow($this->levelData["width"], 2);
for($index = 0; $index < $cnt; ++$index){
$this->write("\x00\xFF"); //Force index recreation
}
fseek($this->fp, $this->payloadOffset);
}else{
$this->payloadOffset = ftell($this->fp);
}
return $this->readLocationTable();
}
public function getIndex($X, $Z){
$X = (int) $X;
$Z = (int) $Z;
return ($Z << $this->log) + $X;
}
public function getXZ($index, &$X = null, &$Z = null){
$X = $index >> $this->log;
$Z = $index & (pow($this->log, 2) - 1);
return array($X, $Z);
}
private function readLocationTable(){
$this->locationTable = array();
$cnt = pow($this->levelData["width"], 2);
$this->seek($this->payloadOffset);
for($index = 0; $index < $cnt; ++$index){
$this->chunks[$index] = false;
$this->chunkChange[$index] = false;
$this->locationTable[$index] = array(
0 => Utils::readShort($this->read(2)), //16 bit flags
);
}
return true;
}
private function writeLocationTable(){
$cnt = pow($this->levelData["width"], 2);
@ftruncate($this->fp, $this->payloadOffset);
$this->seek($this->payloadOffset);
for($index = 0; $index < $cnt; ++$index){
$this->write(Utils::writeShort($this->locationTable[$index][0]));
}
}
private function getChunkPath($X, $Z){
return dirname($this->file)."/chunks/".$Z.".".$X.".pmc";
}
public function loadChunk($X, $Z){
$X = (int) $X;
$Z = (int) $Z;
$index = $this->getIndex($X, $Z);
if($this->isChunkLoaded($X, $Z)){
return true;
}elseif(!isset($this->locationTable[$index])){
return false;
}
$info = $this->locationTable[$index];
$this->seek($info[0]);
$chunk = @gzopen($this->getChunkPath($X, $Z), "rb");
if($chunk === false){
return false;
}
$this->chunks[$index] = array();
$this->chunkChange[$index] = array(-1 => false);
for($Y = 0; $Y < $this->levelData["height"]; ++$Y){
$t = 1 << $Y;
if(($info[0] & $t) === $t){
// 4096 + 2048 + 2048, Block Data, Meta, Light
if(strlen($this->chunks[$index][$Y] = gzread($chunk, 8192)) < 8192){
console("[NOTICE] Empty corrupt chunk detected [$X,$Z,:$Y], recovering contents");
$this->fillMiniChunk($X, $Z, $Y);
}
}else{
$this->chunks[$index][$Y] = false;
}
}
@gzclose($chunk);
return true;
}
public function unloadChunk($X, $Z, $save = true){
$X = (int) $X;
$Z = (int) $Z;
if(!$this->isChunkLoaded($X, $Z)){
return false;
}elseif($save !== false){
$this->saveChunk($X, $Z);
}
$index = $this->getIndex($X, $Z);
$this->chunks[$index] = null;
$this->chunkChange[$index] = null;
unset($this->chunks[$index], $this->chunkChange[$index]);
return true;
}
public function isChunkLoaded($X, $Z){
$index = $this->getIndex($X, $Z);
if(!isset($this->chunks[$index]) or $this->chunks[$index] === false){
return false;
}
return true;
}
protected function isMiniChunkEmpty($X, $Z, $Y){
$index = $this->getIndex($X, $Z);
if($this->chunks[$index][$Y] !== false){
if(substr_count($this->chunks[$index][$Y], "\x00") < 8192){
return false;
}
}
return true;
}
protected function fillMiniChunk($X, $Z, $Y){
if($this->isChunkLoaded($X, $Z) === false){
return false;
}
$index = $this->getIndex($X, $Z);
$this->chunks[$index][$Y] = str_repeat("\x00", 8192);
$this->chunkChange[$index][-1] = true;
$this->chunkChange[$index][$Y] = 8192;
$this->locationTable[$index][0] |= 1 << $Y;
return true;
}
public function getMiniChunk($X, $Z, $Y){
if($this->loadChunk($X, $Z) === false){
return str_repeat("\x00", 8192);
}
$index = $this->getIndex($X, $Z);
if($this->chunks[$index][$Y] === false){
return str_repeat("\x00", 8192);
}
return $this->chunks[$index][$Y];
}
public function setMiniChunk($X, $Z, $Y, $data){
if($this->isChunkLoaded($X, $Z) === false){
$this->loadChunk($X, $Z);
}
if(strlen($data) !== 8192){
return false;
}
$index = $this->getIndex($X, $Z);
$this->chunks[$index][$Y] = (string) $data;
$this->chunkChange[$index][-1] = true;
$this->chunkChange[$index][$Y] = 8192;
$this->locationTable[$index][0] |= 1 << $Y;
return true;
}
public function getBlockID($x, $y, $z){
if($y > 127 or $y < 0 or $x < 0 or $z < 0 or $x > 255 or $z > 255){
return 0;
}
$X = $x >> 4;
$Z = $z >> 4;
$Y = $y >> 4;
$index = $this->getIndex($X, $Z);
$aX = $x - ($X << 4);
$aZ = $z - ($Z << 4);
$aY = $y - ($Y << 4);
$b = ord($this->chunks[$index][$Y]{(int) ($aY + ($aX << 5) + ($aZ << 9))});
return $b;
}
public function setBlockID($x, $y, $z, $block){
if($y > 127 or $y < 0 or $x < 0 or $z < 0 or $x > 255 or $z > 255){
return false;
}
$X = $x >> 4;
$Z = $z >> 4;
$Y = $y >> 4;
$block &= 0xFF;
if($X >= 32 or $Z >= 32 or $Y >= $this->levelData["height"] or $y < 0){
return false;
}
$index = $this->getIndex($X, $Z);
$aX = $x - ($X << 4);
$aZ = $z - ($Z << 4);
$aY = $y - ($Y << 4);
$this->chunks[$index][$Y]{(int) ($aY + ($aX << 5) + ($aZ << 9))} = chr($block);
if(!isset($this->chunkChange[$index][$Y])){
$this->chunkChange[$index][$Y] = 1;
}else{
++$this->chunkChange[$index][$Y];
}
$this->chunkChange[$index][-1] = true;
return true;
}
public function getBlockDamage($x, $y, $z){
if($y > 127 or $y < 0 or $x < 0 or $z < 0 or $x > 255 or $z > 255){
return 0;
}
$X = $x >> 4;
$Z = $z >> 4;
$Y = $y >> 4;
$index = $this->getIndex($X, $Z);
$aX = $x - ($X << 4);
$aZ = $z - ($Z << 4);
$aY = $y - ($Y << 4);
$m = ord($this->chunks[$index][$Y]{(int) (($aY >> 1) + 16 + ($aX << 5) + ($aZ << 9))});
if(($y & 1) === 0){
$m = $m & 0x0F;
}else{
$m = $m >> 4;
}
return $m;
}
public function setBlockDamage($x, $y, $z, $damage){
if($y > 127 or $y < 0 or $x < 0 or $z < 0 or $x > 255 or $z > 255){
return false;
}
$X = $x >> 4;
$Z = $z >> 4;
$Y = $y >> 4;
$damage &= 0x0F;
if($X >= 32 or $Z >= 32 or $Y >= $this->levelData["height"] or $y < 0){
return false;
}
$index = $this->getIndex($X, $Z);
$aX = $x - ($X << 4);
$aZ = $z - ($Z << 4);
$aY = $y - ($Y << 4);
$mindex = (int) (($aY >> 1) + 16 + ($aX << 5) + ($aZ << 9));
$old_m = ord($this->chunks[$index][$Y]{$mindex});
if(($y & 1) === 0){
$m = ($old_m & 0xF0) | $damage;
}else{
$m = ($damage << 4) | ($old_m & 0x0F);
}
if($old_m != $m){
$this->chunks[$index][$Y]{$mindex} = chr($m);
if(!isset($this->chunkChange[$index][$Y])){
$this->chunkChange[$index][$Y] = 1;
}else{
++$this->chunkChange[$index][$Y];
}
$this->chunkChange[$index][-1] = true;
return true;
}
return false;
}
public function getBlock($x, $y, $z){
$X = $x >> 4;
$Z = $z >> 4;
$Y = $y >> 4;
if($x < 0 or $z < 0 or $X >= $this->levelData["width"] or $Z >= $this->levelData["width"] or $Y >= $this->levelData["height"] or $y < 0){
return array(AIR, 0);
}
$index = $this->getIndex($X, $Z);
if(!isset($this->chunks[$index]) or $this->chunks[$index] === false){
if($this->loadChunk($X, $Z) === false){
return array(AIR, 0);
}
}elseif($this->chunks[$index][$Y] === false){
return array(AIR, 0);
}
$aX = $x - ($X << 4);
$aZ = $z - ($Z << 4);
$aY = $y - ($Y << 4);
$b = ord($this->chunks[$index][$Y]{(int) ($aY + ($aX << 5) + ($aZ << 9))});
$m = ord($this->chunks[$index][$Y]{(int) (($aY >> 1) + 16 + ($aX << 5) + ($aZ << 9))});
if(($y & 1) === 0){
$m = $m & 0x0F;
}else{
$m = $m >> 4;
}
return array($b, $m);
}
public function setBlock($x, $y, $z, $block, $meta = 0){
$X = $x >> 4;
$Z = $z >> 4;
$Y = $y >> 4;
$block &= 0xFF;
$meta &= 0x0F;
if($X >= 32 or $Z >= 32 or $Y >= $this->levelData["height"] or $y < 0){
return false;
}
$index = $this->getIndex($X, $Z);
if(!isset($this->chunks[$index]) or $this->chunks[$index] === false){
if($this->loadChunk($X, $Z) === false){
return false;
}
}elseif($this->chunks[$index][$Y] === false){
$this->fillMiniChunk($X, $Z, $Y);
}
$aX = $x - ($X << 4);
$aZ = $z - ($Z << 4);
$aY = $y - ($Y << 4);
$bindex = (int) ($aY + ($aX << 5) + ($aZ << 9));
$mindex = (int) (($aY >> 1) + 16 + ($aX << 5) + ($aZ << 9));
$old_b = ord($this->chunks[$index][$Y]{$bindex});
$old_m = ord($this->chunks[$index][$Y]{$mindex});
if(($y & 1) === 0){
$m = ($old_m & 0xF0) | $meta;
}else{
$m = ($meta << 4) | ($old_m & 0x0F);
}
if($old_b !== $block or $old_m !== $m){
$this->chunks[$index][$Y]{$bindex} = chr($block);
$this->chunks[$index][$Y]{$mindex} = chr($m);
if(!isset($this->chunkChange[$index][$Y])){
$this->chunkChange[$index][$Y] = 1;
}else{
++$this->chunkChange[$index][$Y];
}
$this->chunkChange[$index][-1] = true;
if($old_b instanceof LiquidBlock){
$pos = new Position($x, $y, $z, $this->level);
for($side = 0; $side <= 5; ++$side){
$b = $pos->getSide($side);
if($b instanceof LavaBlock){
ServerAPI::request()->api->block->scheduleBlockUpdate(new Position($b, 0, 0, $this->level), 40, BLOCK_UPDATE_NORMAL);
}else{
ServerAPI::request()->api->block->scheduleBlockUpdate(new Position($b, 0, 0, $this->level), 10, BLOCK_UPDATE_NORMAL);
}
}
}
return true;
}
return false;
}
public function saveChunk($X, $Z){
$X = (int) $X;
$Z = (int) $Z;
if(!$this->isChunkLoaded($X, $Z)){
return false;
}
$index = $this->getIndex($X, $Z);
if(!isset($this->chunkChange[$index]) or $this->chunkChange[$index][-1] === false){//No changes in chunk
return true;
}
$chunk = @gzopen($this->getChunkPath($X, $Z), "wb".PMF_LEVEL_DEFLATE_LEVEL);
$bitmap = 0;
for($Y = 0; $Y < $this->levelData["height"]; ++$Y){
if($this->chunks[$index][$Y] !== false and ((isset($this->chunkChange[$index][$Y]) and $this->chunkChange[$index][$Y] === 0) or !$this->isMiniChunkEmpty($X, $Z, $Y))){
gzwrite($chunk, $this->chunks[$index][$Y]);
$bitmap |= 1 << $Y;
}else{
$this->chunks[$index][$Y] = false;
}
$this->chunkChange[$index][$Y] = 0;
}
$this->chunkChange[$index][-1] = false;
$this->locationTable[$index][0] = $bitmap;
$this->seek($this->payloadOffset + ($index << 1));
$this->write(Utils::writeShort($this->locationTable[$index][0]));
return true;
}
public function doSaveRound(){
foreach($this->chunks as $index => $chunk){
$this->getXZ($index, $X, $Z);
$this->saveChunk($X, $Z);
}
}
}
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