Netcode for gameobjects server authoritative movement

I'm having trouble understanding Netcode for gameobjects.
Could someone show me what authoritative code on the server would look like (without using ClientNetworkTransform for movement) to move and sync between all clients? If possible, could you explain to me how it works?
I've looked for explanations and videos, but most of them use ClientNetworkTransform, and for those that use the server I couldn't understand the explanation.

My current code is below. That way, only the Host is moving, the clients don't move.

Thanks!

Code (CSharp):

1. public class PlayerNetwork : NetworkBehaviour
2. {
3.     public float speed = 3.5f;
4.     public Vector2 defaultPositionRange = new Vector2(-4, 4);
5.  
6.     private void Start()
7.     {
8.         transform.position = new Vector3(Random.Range(defaultPositionRange.x, defaultPositionRange.y), 1, Random.Range(defaultPositionRange.x, defaultPositionRange.y));
9.     }
10.  
11.     void Update()
12.     {
13.         if (IsOwner)
14.             Move();
15.     }
16.  
17.     public void Move()
18.     {
19.         var deltaX = 0;
20.         var deltaZ = 0;
21.  
22.         if (Input.GetKey(KeyCode.W) || Input.GetKey(KeyCode.UpArrow))
23.             deltaZ += 1;
24.  
25.         if (Input.GetKey(KeyCode.A) || Input.GetKey(KeyCode.LeftArrow))
26.             deltaX -= 1;
27.  
28.         if (Input.GetKey(KeyCode.D) || Input.GetKey(KeyCode.RightArrow))
29.             deltaX += 1;
30.  
31.         if (Input.GetKey(KeyCode.S) || Input.GetKey(KeyCode.DownArrow))
32.             deltaZ -= 1;
33.  
34.         if (deltaX != 0 || deltaZ != 0)
35.         {
36.             var newMovement = new Vector3(deltaX, 0, deltaZ);
37.             transform.position = Vector3.MoveTowards(transform.position, transform.position + newMovement, speed * Time.deltaTime);
38.         }
39.     }

 

I already sort of answered this in another post you made, but...

Instead of setting the transform.position (which only the server is allowed to do if you're not using ClientNetworkTransforms), you call a ServerRpc in that line, say

MovePlayerServerRpc(deltaX,deltaZ);

That function could look like this:

Code (CSharp):

1. [ServerRpc]
2. private void MovePlayerServerRpc(int deltaX,int deltaZ) {
3.     transform.position=Vector3.MoveTowards(transform.position,transform.position+new Vector3(deltaX,0,deltaZ),speed*Time.deltaTime);
4. } //MovePlayerServerRpc