Unity Multiplayer Photon fusion multiplayer game (laser hockey) with physics

Hello Everyone,

We are implementing a laser hockey game that can be played online using photon fusion. We tried using many strategies and flows to try to reach the best solution where the puck/ball collision can be handled properly and the paddle's movement should be smooth. These are our results based on different strategies:

A) Host/Client game and moving paddle based on input + Physics 3D server mode, it caused a delay in the paddle movement in the client side. As you can see in the video there is a lag and the paddle is always behind the client's input touch point
Result Video: https://drive.google.com/file/d/11CCTxVK6QzsHTAqu6Oel58JPloqFnzC5/view?usp=share_link

B) Host/Client game and moving paddle based on input + Physics 3D client prediction, it caused weird behaviors and movements.
Result Video: https://drive.google.com/file/d/1oGk1m4pLhsd7MYaJcag-sX75hSmzOb48/view?usp=share_link

C) Shared Mode game and moving each paddle in FixedUpdate on each node + Physics 3D server mode. The paddles move correctly but the physics of collision with the ball is wrong.
Result Video: https://drive.google.com/file/d/1ddoSrN5zslpAgSIjfPzG0tdkfKplVjje/view?usp=share_link

D) Shared Mode game and moving each paddle in FixedUpdate on each node + Physics 3D server mode + Eventual Consistency + Area of interest. The paddles move correctly but the physics of collision with the ball is wrong + some ball jittering.
Result Video: https://drive.google.com/file/d/1gK58tA94zJxPz7qS9mcmEqmExXpJSw9N/view?usp=share_link

And I attached the snippets of some functions or components.

I read somewhere to reduce the heavy calculations in onInput so I split it.

1) I calculate the needed touch point in FixedUpdate based on user input + screen height:



2) I pass the info collected in onInput:



3) I read the passed data in FixedUpdateNetwork and re-calculate the touch point based on new device screen resolution and pass the needed force to the rigidbody:



Finally, The network objects (Ball + Paddle), Ball:


Paddle:


Please advice to know what better we can do to reach something close to real-time simulation.

Thanks in advance.

 

Looks like some bug in your code. I am using shared mode for something similar with great success.

 

you should using com.unity.physics instead unity collider and rigibody