static function freadstring($file, $max, $trim = true)
{
$chars = file_helpers::freadchars($file, $max);
$string = "";
foreach ($chars as $c) {
if ($c == 0) {
break;
}
$string .= chr($c);
}
return $trim ? file_helpers::_oem2ansi(trim($string)) : $string;
}
private function _load()
{
$wld = fopen($this->file, "rb");
if (!$wld) {
return $this->_error("invalid file");
}
if (!file_helpers::freadid($wld)) {
// WORLD_V1.0
return $this->_error("no S2-Map");
}
$this->header['name'] = file_helpers::freadstring($wld, 20);
// "foo"
$this->header['width'] = file_helpers::freadshort($wld);
// w
$this->header['height'] = file_helpers::freadshort($wld);
// h
$this->header['type'] = file_helpers::freadchar($wld);
// green-/waste-/winterland
$this->header['players'] = file_helpers::freadchar($wld);
// number of players
$this->header['author'] = file_helpers::freadstring($wld, 20);
// "bar"
// jump to first subheader
fseek($wld, 2342, SEEK_SET);
if (!file_helpers::freadshid($wld, 0x11)) {
// 11 27 0 0 0 0
return $this->_error("invalid S2-Map");
}
$this->header['width'] = file_helpers::freadshort($wld);
// w (again)
$this->header['height'] = file_helpers::freadshort($wld);
// h (again)
$keys = array_keys($this->blocks);
// read the blocks
for ($i = 0; $i < 14; $i++) {
if (!file_helpers::freadshid($wld, 0x10)) {
// 10 27 0 0 0 0
return $this->_error("invalid S2-Subheader");
}
$width = file_helpers::freadshort($wld);
// sub w
$height = file_helpers::freadshort($wld);
// sub h
if (file_helpers::freadshort($wld) != 1) {
// 01 00
return $this->_error("invalid S2-Sub-Id");
}
$length = file_helpers::freadint($wld);
// length of block (w*h)
$this->blocks[$keys[$i]] = file_helpers::freadchars($wld, $length);
}
fclose($wld);
return true;
}