using System.Collections.Generic;
using FlaxEngine;
using FlaxEngine.Assertions;

namespace Game;

public static class NetworkWorld
{
    private class WorldState
    {
        public ulong frame;
        public List<PlayerActor> actors;
        public Dictionary<PlayerActor, PlayerLagCompStates> playerFrameHistory;

        public WorldState()
        {
            actors = new List<PlayerActor>();
            playerFrameHistory = new Dictionary<PlayerActor, PlayerLagCompStates>();
        }
    }

    private struct PlayerLagCompState
    {
        public Float3 position;
    }

    private class PlayerLagCompStates
    {
        public ulong oldestFrame;
        private PlayerLagCompState[] states;

        public PlayerLagCompStates(int frames)
        {
            states = new PlayerLagCompState[frames];
        }

        public PlayerLagCompState GetState(ulong frame)
        {
            Assert.IsTrue(frame >= oldestFrame);
            ulong index = frame % (ulong)states.Length;
            return states[index];
        }

        public void SetState(PlayerLagCompState state, ulong frame)
        {
            ulong index = frame % (ulong)states.Length;
            states[index] = state;
        }
    }
}