Custom world generation/noise


 * : The root object.
 * : First octave. If in the noise settings is true, it must be an integer less than or equal to 1, otherwise the value range is not unlimited.
 * : Amplitudes of sub-noise. The frequency of a sub-noise in the list is, and the amplitude (the value of the sub-noise ranges from negative amplitude value to amplitude value) of this sub-noise is  . The noise value is the sum of each sub-noise (If all the elements in the list are 1, the noise value will be exactly from -1 to 1). If  in the noise settings is true, the length must be less than or equal to  , otherwise the length is unlimited.
 * : A double value for a sub-noise.