Is the "Getting Started" in the doc updated?

I've already found two issues.

1. adding ConvertToClientServerEntity component throws a warning in the editor.

2. The Line

 foreach (var world in World.AllWorlds)

throws an error. I think it should be

foreach (var world in World.All)

.

Just wanted to make sure I am doing everything right!

 

I am confused,

I copied the doc as best I could, but now I am getting an error from

var ghostCollection = GetSingletonEntity<GhostPrefabCollectionComponent>();

. Says no Entity has been created for that to be used.

 

yes the newer version of the code u can find here : https://github.com/Unity-Technologies/multiplayer/tree/master/sampleproject/Assets/Samples/NetCube and i think they use subscenes now to spawn ghosts and this chapter of manual is updated i think - https://docs.unity3d.com/Packages/com.unity.netcode@0.6/manual/ghost-snapshots.html (read entity spawning and prespawned ghosts chapters) - but i use an older version of netcode where older method still work - so maybe someone else can explain this better

 

Thanks for the update. I also found I was using URP which multiple entity worlds does not like, so that was where I was having some problems too!

 

I am lost. I copied as best I could the code from the documentation. I was getting no prediction and really delayed responses.

I also think the sample netcube is no longer working. Imported the project into a brand new project and I am unable to control it. I've spent about a day on trying to get the simplest stuff working to no avail.

Is there any good tutorials that can point me in the right direction? I can't seem to get anything working despite following the instructions rigidly.

 

I am using "com.unity.netcode": "0.6.0-preview.7".

Burst is enabled, everything is default. I touch wasd and the cube sits still.

I also followed this tutorial

https://moetsi.gitbook.io/unity-dots-multiplayer-xr-sample-project/dots-netcode/overview

And got to a point where I could move the cube (because I removed all the extra stuff they were doing) except the cube didn't have prediction. So I would hit move, the cube would move slightly (by one frame) but not move beyond that until the server caught up. I had the delay set to 500ms.

I am no slouch when it comes to this stuff. I dived heavily into ECS in 2019 and have been interested in the concept since around 2015.

I booted up the NetCube scene this morning, and now looking into the Entity Debugger I can see that the cube data is moving, but it isn't displaying in the editor or camera view. Is there a way I am supposed to tell the editor which world to draw? And is there some good documentation on Live Link? The settings in the menu aren't immediately apparent.

 

Thanks for all the info and detailed response .

I think I am having a biggest issue seeing where data is updated. The relationship between your player controlled cube and how that information is sent upwards to the server, updated on the server and then sent back down to the client doesn't seem to be anywhere. Is all this information done "under the hood" and the end user doesn't have to do anything special?

Do I not need to touch anything to do with the translation value (for example) coming from the server to my client? Is that done all automatically?

 

Thanks for the patience. I wiped the project clean and did the Getting Started again from scratch and it worked!

A few things to fix up.
1. The ConvertToClientServerEntity flow needs to be replaced with a subscene. I didn't really know what I was doing with that, but I understand now.
2. The line

foreach (var world in World.AllWorlds)

needs to be

foreach(var world in World.All)

3. In the

MoveCubeSystem

, Time.DeltaTime I think needs to be replaced with

World.GetOrCreateSystem<NetworkTimeSystem>().Time.DeltaTime;

Although now I have a problem of slight jitter when using 100ms delay. The cube will reach it's position as predicted, but then be adjusted when the server updates the cube position. I think this has something to do with compression of floats, but I am not sure. Maybe I need a different value for Time.Delta time.

Thanks for your patience and I hope I didn't come off like a jerk!