public class ProceduralTerrainGenerator : MonoBehaviour
{
public bool regenerateMap = true;

public Hextile[] hexTiles;

void Update()
{
    CreateMap();
}

private void CreateMap()
{
    // Some code for Perlin Noise generation inside perlinMap[,]
    for (int i = 0; i < mapLength; i++)
    {
        for (int j = 0; j < mapHeight; j++)
        {
            // Setting up position from i and j index
            foreach (HexTile hexTile in hexTiles)
            {
                if (ValueInRange(perlinMap[i,j], hexTile.LowLimit, hexTile.HighLimit)
                {
                    Instantiate<HexTile>(hexTile.tile, position, Quaternion.Euler(0f, 0f, 0f), this.transform);
                }
            }
        }
    }
}
}

[System.Serializable]
public class HexTile
{
    public GameObject tile;
    public HexMetrics.HexType hexType;
    public float perlinNoiseLowLimit;
    public float perlinNoiseHighLimit;
}