noise code by MrDutchy

void noisetohmap(float * noisearr,int startfreq, float startamp, int octaves,int size) {     int oct; int inc; int frequency=startfreq; float amp=startamp;     float incx; float incy;     double ni[2];     int x; int y;     float value;     bool firstoct=true;     for (oct=0, inc = 0; oct<octaves; ++oct, frequency *=2, amp*=0.5)     {         SetNoiseFrequency(frequency);         ni[0] = ni[1] = 0;         incx = 1.0f / (size/frequency);         for (x=0; x<size; ++x, ni[0] += incx)         {             incy = 1.0f / (size/frequency);             for (y=0; y<size; ++y, ni[1] +=incy)             {                 value = (float) ( (((noise2(ni)+1.0f) * amp)) * 0.5f);                 if (firstoct) noisearr [x + (y * size)] = value;                 else noisearr [x + (y * size)] += value;                 if (noisearr [x + (y * size)]>maxval) maxval = noisearr [x + (y * size)];                 if (noisearr [x + (y * size)]<minval) minval = noisearr [x + (y * size)];             }         }         firstoct=false;     } }