[SOLVED] How to spawn objects on the server?

i have a game where 2 players can join, kill zombies and pickup guns, but my question is, How should i spawn the enemies?
i want ONLY the host to have control about the spawning of items and zombies, what i mean is, i want to have a script that spawns zombies over time but i dont want them to spawn twice as fast when i have 2 players on the scene

by far i have this

[ClientRpc]
void RpcSpawn()
{
for (int i = 0; i < spawnPoints.Length; i++)
{
spawned = (GameObject)Instantiate(items[Random.Range(0, items.Length)], spawnPoints.transform.position, Quaternion.identity);
NetworkServer.Spawn(spawned);
}
}

void Start()
{
spawnPoints = GameObject.FindGameObjectsWithTag("ItemSpawner");
if (!isServer)
return;
RpcSpawn();
}

but it still called twice when the other client connects, and when you connect to a server where the items have already spawned u dont see them at all


Edit:
i managed to make this work, it is not the best way but it works so i am ok with it, first i had to put all the prefabs in the networkmanager list and then

Code (CSharp):

1. public GameObject item;
2.     public Transform position;
3.  
4.     void Start()
5.     {
6.         GameObject[] players = GameObject.FindGameObjectsWithTag("Player");
7.         if (isServer && players.Length==1)
8.         {
9.             ServerSpawn();
10.         }
11.     }
12.  
13.     [Server]
14.     void ServerSpawn()
15.     {
16.         var spawned = (GameObject)Instantiate(item, position.position, Quaternion.identity);
17.         NetworkServer.Spawn(spawned);
18.     }

i only wanted the first player to spawn items when he spawns, that is why i made an array of players and check if this was the first one