How to use

get

method

in

org.apollo.net.codec.game.GamePacketReader

/**
 * Gets an unsigned data type from the buffer with the specified order and transformation.
 *
 * @param type The data type.
 * @param order The byte order.
 * @param transformation The data transformation.
 * @return The value.
 * @throws IllegalStateException If this reader is not in byte access mode.
 * @throws IllegalArgumentException If the combination is invalid.
 */
public long getUnsigned(DataType type, DataOrder order, DataTransformation transformation) {
  long longValue = get(type, order, transformation);
  Preconditions.checkArgument(type != DataType.LONG, "Longs must be read as a signed type.");
  return longValue & 0xFFFFFFFFFFFFFFFFL;
}

/**
 * Gets a signed data type from the buffer with the specified order and transformation.
 *
 * @param type The data type.
 * @param order The byte order.
 * @param transformation The data transformation.
 * @return The value.
 * @throws IllegalStateException If this reader is not in byte access mode.
 * @throws IllegalArgumentException If the combination is invalid.
 */
public long getSigned(DataType type, DataOrder order, DataTransformation transformation) {
  long longValue = get(type, order, transformation);
  if (type != DataType.LONG) {
    int max = (int) (Math.pow(2, type.getBytes() * 8 - 1) - 1);
    if (longValue > max) {
      longValue -= (max + 1) * 2;
    }
  }
  return longValue;
}