easy c# Simplex Noise script code

am i accessing the second script correctly with the first? it returns various errors, it's in Standard Assets folder:

js access code:-----------------------------

 function  equation1 ( vertex: Vector3 ): float
 {
 var n=SimplexNoiseGenerator.noise(vertex.x,vertex.y,vertex.z);
 return n*55; 
 }    

noise code:-----------------------------

 using UnityEngine;
 using System.Collections;
  
 public class SimplexNoiseGenerator : MonoBehaviour {
     private int[] A = new int[3];
     private float s, u, v, w;
     private int i, j, k;
     private float onethird = 0.333333333f;
     private float onesixth = 0.166666667f;
     private int[] T;
     
     public SimplexNoiseGenerator() {
         if (T == null) {
             System.Random rand = new System.Random();
             T = new int[8];
             for (int q = 0; q < 8; q++)
                 T[q] = rand.Next();
         }
     }
     
     public SimplexNoiseGenerator(string seed) {
         T = new int[8];
         string[] seed_parts = seed.Split(new char[] {' '});
         
         for(int q = 0; q < 8; q++) {
             int b;
             try {
                 b = int.Parse(seed_parts[q]);
             } catch {
                 b = 0x0;
             }
             T[q] = b;
         }
     }
     
     public SimplexNoiseGenerator(int[] seed) { // {0x16, 0x38, 0x32, 0x2c, 0x0d, 0x13, 0x07, 0x2a}
         T = seed;
     }
     
     public string GetSeed() {
         string seed = "";
         
         for(int q=0; q < 8; q++) {
             seed += T[q].ToString();
             if(q < 7)
                 seed += " ";
         }
         
         return seed;
     }
     
     public float coherentNoise(float x, float y, float z, int octaves=1, int multiplier = 25, float amplitude = 0.5f, float lacunarity = 2, float persistence = 0.9f) {
         Vector3 v3 = new Vector3(x,y,z)/multiplier;
         float val = 0;
         for (int n = 0; n < octaves; n++) {
           val += noise(v3.x,v3.y,v3.z) * amplitude;
           v3 *= lacunarity;
           amplitude *= persistence;
         }
         return val;
     }
     
     public int getDensity(Vector3 loc) {
         float val = coherentNoise(loc.x, loc.y, loc.z);
         return (int)Mathf.Lerp(0,255,val);
     }
     
     // Simplex Noise Generator
     public float noise(float x, float y, float z) {
         s = (x + y + z) * onethird;
         i = fastfloor(x + s);
         j = fastfloor(y + s);
         k = fastfloor(z + s);
  
         s = (i + j + k) * onesixth;
         u = x - i + s;
         v = y - j + s;
         w = z - k + s;
  
         A[0] = 0; A[1] = 0; A[2] = 0;
  
         int hi = u >= w ? u >= v ? 0 : 1 : v >= w ? 1 : 2;
         int lo = u < w ? u < v ? 0 : 1 : v < w ? 1 : 2;
  
         return kay(hi) + kay(3 - hi - lo) + kay(lo) + kay(0);
     }
  
     float kay(int a) {
         s = (A[0] + A[1] + A[2]) * onesixth;
         float x = u - A[0] + s;
         float y = v - A[1] + s;
         float z = w - A[2] + s;
         float t = 0.6f - x * x - y * y - z * z;
         int h = shuffle(i + A[0], j + A[1], k + A[2]);
         A[a]++;
         if (t < 0) return 0;
         int b5 = h >> 5 & 1;
         int b4 = h >> 4 & 1;
         int b3 = h >> 3 & 1;
         int b2 = h >> 2 & 1;
         int b1 = h & 3;
  
         float p = b1 == 1 ? x : b1 == 2 ? y : z;
         float q = b1 == 1 ? y : b1 == 2 ? z : x;
         float r = b1 == 1 ? z : b1 == 2 ? x : y;
  
         p = b5 == b3 ? -p : p;
         q = b5 == b4 ? -q : q;
         r = b5 != (b4 ^ b3) ? -r : r;
         t *= t;
         return 8 * t * t * (p + (b1 == 0 ? q + r : b2 == 0 ? q : r));
     }
  
     int shuffle(int i, int j, int k) {
         return b(i, j, k, 0) + b(j, k, i, 1) + b(k, i, j, 2) + b(i, j, k, 3) + b(j, k, i, 4) + b(k, i, j, 5) + b(i, j, k, 6) + b(j, k, i, 7);
     }
  
     int b(int i, int j, int k, int B) {
         return T[b(i, B) << 2 | b(j, B) << 1 | b(k, B)];
     }
  
     int b(int N, int B) {
         return N >> B & 1;
     }
     
     int fastfloor(float n) {
         return n > 0 ? (int)n : (int)n - 1;
     }
 }