Creeping With Unity

CreepCell.cs

using System;
using UnityEngine;

[ExecuteInEditMode]
[RequireComponent(typeof(MeshFilter))]
[RequireComponent(typeof(MeshRenderer))]
[RequireComponent(typeof(MeshCollider))]
public class CreepCell : MonoBehaviour, IFillable
    private readonly Vector3[] _vertices = new Vector3[_verticesCount];
    private readonly Vector3[] _normals = new Vector3[_verticesCount];
    private readonly Vector2[] _uv = new Vector2[_verticesCount];
    private readonly int[] _triangles = new int[_trianglesCount];

    public float FillingHeight;
    
    ...
    //init mesh
    // recalculate mesh on FillingLevel...
}

CreepSpreader.cs

using UnityEngine;

public class CreepSpreader : MonoBehaviour
{
    private const int _widht = 3;
    private const int _height = 3;
    public CreepCell[,] creep = new CreepCell[_widht, _height];
    public CreepSpread<CreepCell> spread;

    // Use this for initialization
    void Start()
    {
        for (int z = 0; z < _height; z++)
        {
            for (int x = 0; x < _widht; x++)
            {
                Vector3 pos = new Vector3(x,0,z);
                // this obviously doesn't work in runtime, since this loads the prefab...
                // how could I get an instance of my CreepCell to be loaded when I'm unable to
                // instantiate it? or how would I do get a hold of all the instances in the array?
                creep[x, z] = (CreepCell) Instantiate(Resources.Load("CreepCell"), pos, Quaternion.identity);
            }
        }

        spread = new CreepSpread<CreepCell>(_height,_widht, creep);
    }

    // Update is called once per frame
    void Update()
    {

    }
}