Seeds for tile world

Chunk.cs

 private Transform activeMap;
 void SwapMap()
 {
     if (activeMap) activeMap.gameObject.SetActive(false);

     int chunkHash = Mathf.Abs((int)transform.position.x * 73856093 ^ (int)transform.position.y * 19349663);

     activeMap = maps[seed.Next(chunkHash, maps.Count)]; // Directly store GameObject
     activeMap.gameObject.SetActive(true);

     transform.localEulerAngles = new Vector3(0, 0, 90 * seed.Next(chunkHash, 4));

 }

Seed.cs

public class Seed : MonoBehaviour
{
    int seed = 1;

    public int  Next(float _hashKey, int _range)
    {
        System.Random rand = new System.Random((int)_hashKey + seed); // Using a fixed seed
        return(  rand.Next(_range)  );
     
    }
}