Netcode for GameObjects Client Prediction Implementation [Code] - Pt 7

[@MomasGameDev]

PS: I'm dying here for the Reconciliation tutorial.

[@mrlarrydapuppet4337]

Now to wait for the recconcilation tutorial :) Hopefully it comes soon..

[@minima_studios]

hey! just wondering if a part 8 is in the works

[@bluzenkk]

thankyou for tackling this part of netcode~~~ good luck~

[@Flarvain]

Thanks bluzen, its been a learning experience for me too! Appreciate the comment :)

[@GaLzZy.]

Will you still do the Reconciliation video and also show how to add interpolation? :O Thanks!

[@miguelrito6378]

Thanks for the tutorial, i can´t wait for part 2.

[@monopixelart]

You help me a lot with camera tutorial thanks man you the best :)

[@Flarvain]

You're welcome! 🙏

[@HitregStudios]

I too am waiting for part 8

[@PuffoPufferfish]

Is the Reconciliation tutorial coming out soon?

[@MomasGameDev]

Omg thank you so much for someone finally explaining client side prediction in a way I can understand it. There are some bad tutorials out there and this is the only one that makes any sense.

[@Flarvain]

You're welcome!

[@mrtnt1666]

Hey great video, I've tried to implement this into my game and the movement does work but for some reason on the position of the host player is transferred across clients and I am getting and error saying "object reference not set to an instance of an object" do you know what I might be doing wrong? I've gone over the video a couple times

[@hound6870]

I think the error appears if the other players are not spawned yet. For me simply putting an if statement there fixed it (currentServerTransformState.Value != null).

[@j.p.bikes22]

best youtuber

[@forkmor1661]

Getting Null Reference Exception on the currentServerTransformState, followed along exactly

[@hound6870]

I think the error appears if the other players are not spawned yet. For me simply putting an if statement there fixed it (currentServerTransformState.Value != null).

[@1_8t]

I have a problem when I start the game I can control on the client side but I can't control on the host side. Note that I do not use the server only the host and the client

[@FourFeaturesStudio]

Why do you create tikret and delta time yourself? The NGO already has these parameters

[@Xeriarc]

What happens if the clients framerate is higher than the tickrate? won't the ProcessLocalPlayerMovement skip the if statement for some frames, meaning that you might miss some input from the player This is probably not noticeable with movement/rotation as they are usually pressed for multiple frames, but what about button inputs that might only be pressed for one frame? Nice series so far, looking forward to the reconciliation video

[@Flarvain]

Hey there, i hadnt actually considered this, heres my thoughts :) In my examples we've talkes about frames and the delays being quite large to demonstrate the issue but i think in practice these frame rate differences are 0.0x of a second different so i dont think you'd ever really trigger this. Its definitely possible based on the code but i think the same potential to have input not recognized would exist on any computer with lower specs and a lower frame rate. I would be curious to see the final impact because ignored input is definitely a possibility, but i think in actual game play its likely to not be recognized. Thanks for bringing it up though, theres plenty i still am learning myself 😀

[@polihayse]

@@Flarvain I was wondering this too. I was considering adding the inputs into a buffer, and then calling the server RPC for all of the items in the buffer at once for a Netcode tick. Idk if this will work. I also don't know how interpolation is supposed to happen without using a NetworkTransform component. I'll just read more Netcode documentation and try to wrap my head around it.

[@LiteralPain3551]

Is there a way i could alter this to work with mirror? ive been struggling to find a good prediction tutorial for mirror

[@Flarvain]

Sorry i dont know enough about mirror to comment one way or the other

[@LiteralPain3551]

@@Flarvain all good thanks for replying though. ive been struggling with it for ages -_-

[@simonwitt2994]

Is the host faster then the clients for anyone else?

[@jhonisjhoniss1]

It's happening because the Move(moveInput); inside ProcessLocalPlayerMovementis being called twice as a host. To fix it, just ensure the server doesn't call the move function inside the ProcessLocalPlayerMovement public void ProcessLocalPlayerMovement(Vector2 _moveInput) { tickDeltaTime += Time.deltaTime; if(tickDeltaTime > tickRate) { int bufferIndex = tick % buffer; MovePlayerWithServerTickServerRPC(tick, _moveInput); if(!IsServer) Move(_moveInput); HandleStates.InputState inputState = new() { tick = tick, moveInput = _moveInput, }; HandleStates.TransformStateRW transformState = new() { tick = tick, finalPos = transform.position, finalRot = transform.rotation, isMoving = true }; _inputStates[bufferIndex] = inputState; _transformStates[bufferIndex] = transformState; tickDeltaTime -= tickRate; if(tick == buffer) { tick = 0; } else { tick++; } } }