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Partial ChunkData sending, NACK handling, Queues

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This commit is contained in:
Shoghi Cervantes Pueyo
2012-12-13 22:32:28 +01:00
parent 063f44c330
commit 6ef600942b
4 changed files with 140 additions and 186 deletions
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35
classes/ChunkParser.class.php
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@ -25,11 +25,8 @@ the Free Software Foundation, either version 3 of the License, or
*/
define("MAP_WIDTH", 256);
define("MAP_HEIGHT", 128);
class ChunkParser{
private $raw = b"";
private $location, $raw = b"";
var $sectorLenght = 4096; //16 * 16 * 16
var $chunkLenght = 86016; //21 * $sectorLenght
var $map;
@ -38,6 +35,29 @@ class ChunkParser{
$map = array();
}
private function loadLocationTable(){
$this->location = array();
console("[DEBUG] Loading Chunk Location table...", true, true, 2);
$chunkCnt = 0;
for($offset = 0; $offset < 0x1000; $offset += 4){
$data = substr($this->raw, $offset, 4);
$sectors = ord($data{0});
if($sectors === 0){
continue;
}
$x = ord($data{1});
$z = ord($data{2});
$X = $chunkCnt % 16;
$Z = $chunkCnt >> 4;
//$unused = ord($data{3});
if(!isset($this->location[$X])){
$this->location[$X] = array();
}
$this->location[$X][$Z] = $this->getOffset($X, $Z, $sectors);
++$chunkCnt;
}
}
public function loadFile($file){
if(!file_exists($file)){
return false;
@ -52,10 +72,10 @@ class ChunkParser{
return array(ord($data{0}), ord($data{1}), ord($data{2}), ord($data{3}));
}
private function getOffset($X, $Z){
private function getOffset($X, $Z, $sectors = 21){
//$info = $this->getOffsetPosition($X, $Z);
//return 4096 + (($info[1] * $info[0]) << 12) + (($info[2] * $data[0]) << 16);
return 4096 + (($X * 21) << 12) + (($Z * 21) << 16);
return 0x1000 + (($X * $sectors) << 12) + (($Z * $sectors) << 16);
}
public function getChunk($X, $Z, $header = true){
@ -72,7 +92,7 @@ class ChunkParser{
public function parseChunk($X, $Z){
$X = (int) $X;
$Z = (int) $Z;
$offset = $this->getOffset($X, $Z);
$offset = $this->location[$X][$Z];
$len = Utils::readLInt(substr($this->raw, $offset, 4));
$offset += 4;
$chunk = array(
@ -122,6 +142,7 @@ class ChunkParser{
}
public function loadMap(){
$this->loadLocationTable();
console("[DEBUG] Loading chunks...", true, true, 2);
for($x = 0; $x < 16; ++$x){
$this->map[$x] = array();