Unity FPS - Joining players always take over the camera

Question

I created a "network manager" and a "network manager hud" for the whole scene. My character is a simple capsule and has a camera, a weapon spawner and 3 weapons as children. I gave him a "network identity" and a "network transform", rewrote the "capsule controler" (attached to the capsule) and also the "mouse controller" (attached to the camera) and saved it as a prefab. I configured the network manager to take the prefab as spawn object and use the default settings of the network manager: localhost:7777.

Now my problem.

I have build an instance of the game, run the inline game as host (localhost:7777) and everything works. Then i run the external build (tried localhost and even local ip)

As soon as i join the game using the 2. instance, the second player take over the camera of the first player! And in the first instance it seems like both cameras are rendered in paralell.

If i dont attach cameras to the player, i can control them as expected :#

Now, finally my question: What am i doing wrong or do i miss?

Thank you

Answer 1

If anybody ran into the same issue, my setup was wrong. Dont attach a camera onto every player prefab. Create them without a camera but put a camera in the scene. Then when a player joins, he take the camera in his local instance of the game and make it a child of himself so it will follow him. This way there is always just a single camera in every instance.

I put a Gameobject (Empty) onto the prefab for that.

Camera.main.transform.position = this.transform.Find("Head").transform.position; 
Camera.main.transform.LookAt(this.transform.position + this.transform.forward * 30);
Camera.main.transform.parent = this.transform;

Answer 2

You need a way of telling which instance owns which gameobject. Only the instance that "owns" the gameobject should be able to assume control on it.

You are looking for something like this:

public void Update()
{
    if(_thisInstance != _ownerInstance)
        return; // short-circuit if we are not the owner of this gameobject.

    /*
     *   normal control logic goes here
     */
}