/** * Attempts to construct a map based on given DBC, predicting what each field could possibly hold by way of sampling */ public static function fromDBC(DBC $dbc, $attach = true) { $fields = $dbc->getFieldCount(); $samples = $dbc->getRecordCount() > self::SAMPLES ? self::SAMPLES : $dbc->getRecordCount(); $block = $dbc->getStringBlock(); preg_match_all('#\\0#', $block, $matches, PREG_OFFSET_CAPTURE); $strings = array(); foreach ($matches[0] as $offset) { $offset = (int) $offset[1] + 1; if ($offset < strlen($block) - 1) { $strings[$offset] = true; } } $matrix = array_fill(1, $fields, 0); for ($i = 0; $i < $samples; $i++) { $record = $dbc->getRecord($i); $values = $record->asArray(); foreach ($values as $offset => $value) { if ($value < 0) { $matrix[$offset] += 1 << 0; } if (self::isProbableFloat($value)) { $matrix[$offset] += 1 << 8; } if (isset($strings[$value]) || $value === 0) { $matrix[$offset] += 1 << 16; if ($value !== 0) { $matrix[$offset] |= 1 << 24; } } } } $map = new self(); for ($i = 1; $i <= $fields; $i++) { $probs = $matrix[$i]; $int = ($probs & 0xff) / $samples; $flt = (($probs & 0xff00) >> 8) / $samples; $str = (($probs & 0xff0000) >> 16) / $samples; $strbit = ($probs & 0xff000000) >> 24; $field = 'field' . $i; if ($flt > 0.6) { $type = DBC::FLOAT; } else { if ($strbit > 0 && $str > 0.99) { $type = DBC::STRING; if ($i + DBC::LOCALIZATION <= $fields) { $type = DBC::STRING_LOC; for ($j = $i + 1; $j <= $i + DBC::LOCALIZATION; $j++) { $probs = $matrix[$j]; $str = (($probs & 0xff0000) >> 16) / $samples; $strbit = ($probs & 0xff000000) >> 24; if ($str !== 1 || $strbit !== 0) { $type = DBC::STRING; } } if ($type === DBC::STRING_LOC) { $i += DBC::LOCALIZATION; } } } else { if ($int > 0.01) { $type = DBC::INT; } else { $type = DBC::UINT; } } } $map->add($field, $type); } if ($attach && $dbc->getMap() === null) { $dbc->attach($map); } return $map; }
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * @author Tim Kurvers <*****@*****.**> */ error_reporting(E_ALL | E_STRICT); require '../lib/bootstrap.php'; /** * This example shows how to edit an existing a DBC-file */ // Open given DBC and given map (editing requires a writable DBC) $dbc = new DBC('./dbcs/Sample.dbc', DBCMap::fromINI('./maps/Sample.ini')); // Grab the first record $rec = $dbc->getRecord(0); // Dump the record in its initial state $rec->dump(true); // Read the points value (field 18 or 'points') $points = $rec->getInt(18); $points = $rec->getInt('points'); // Write the points value +1 (again through field 18 or 'points') and verify the record-dump $rec->setInt(18, $points + 1); $rec->setInt('points', $points + 1); $rec->dump(true); // Write a random string to the name field and verify the record-dump $rec->setString('name', uniqid()); $rec->dump(true); // Also, note how the string-block of the DBC file increases per string-write! var_dump($dbc);