using System.Collections.Generic;
using UnityEngine;
using Obi;
using FishNet.Object;
using FishNet.Object.Synchronizing;

public class RopeSync : NetworkBehaviour
{
ObiRope rope;
List<RopeState> receivedStates = new List<RopeState>();

[System.Serializable]
public struct RopeState
{
public Vector4 position;
public Vector4 velocity;
}

private void Start()
{
rope = GetComponent<ObiRope>();
}

private void FixedUpdate()
{
if (IsServer)
{
// Server sends rope states (positions and velocities) to clients.
receivedStates.Clear();
for (int i = 0; i < rope.particleCount; i++)
{
Vector4 position = rope.solver.positions[rope.GetParticleRuntimeIndex(i)];
Vector4 velocity = rope.solver.velocities[rope.GetParticleRuntimeIndex(i)];
receivedStates.Add(new RopeState { position = position, velocity = velocity });
}
// Call a client RPC to sync the rope states.
syncRopeClient(receivedStates);
}
}

// This method is now a client RPC.
[Client]
private void syncRopeClient(List<RopeState> states)
{
if (!IsServer)
{
// Client receives rope states (positions and velocities) from the server.
for (int i = 0; i < rope.particleCount; i++)
{
Vector4 targetPosition = states[i].position;
Vector4 currentPosition = rope.solver.positions[rope.GetParticleRuntimeIndex(i)];

rope.solver.invMasses[rope.GetParticleRuntimeIndex(i)] = 0;

rope.solver.positions[rope.GetParticleRuntimeIndex(i)] = states[i].position;

// Apply the received velocity to the rope's solver.
rope.solver.velocities[rope.GetParticleRuntimeIndex(i)] = states[i].velocity;

rope.solver.UpdateBackend();
}
}
}
}