/**
* @param Modification $mod
* @return void
*/
private function applyModification(Modification $mod)
{
// First get the map for this modification
$map = $mod->getMap();
// Get the selected setting
$setting = $mod->getSetting();
// Get all ranges and iterate through them
$ranges = $map->getRanges();
foreach ($ranges as $range) {
// Define start and end of the range
$rangeStart = hexdec($range->getStart());
$rangeEnd = hexdec($range->getEnd());
// Iterate through every single position within the range
for ($offset = $rangeStart; $offset <= $rangeEnd; $offset++) {
// Hex represantation of our decimal offset
$hexOffset = str_pad(dechex($offset), 5, '0', STR_PAD_LEFT);
// Seek to offset position
fseek($this->_patchedFile, $offset);
// Check if the setting contains a value for this position
if ($setting->hasValueAtOffset($hexOffset)) {
$value = $setting->getValue($hexOffset);
fwrite($this->_patchedFile, pack('H*', $value->getValue()));
continue;
}
// Setting does not contain a value for this position, so
// we'll write the value of the original file from this position
fseek($this->_originalFile, $offset);
fwrite($this->_patchedFile, fread($this->_originalFile, 1));
}
}
}
