ControllerDiscordRPC

using System;
using UnityEngine;
using Discord;
using UnityEngine.SceneManagement;

public class DiscordController : MonoBehaviour
{
    public Discord.Discord discord;
    private long applicationID = 123456789101112; // Discord App ID

    void Start()
    {
        // Initialized Discord with Application ID
        discord = new Discord.Discord(applicationID, (UInt64)Discord.CreateFlags.Default);

        // Setting the standart activity (main menu)
        UpdateDiscordActivity("Menu", "PlayerName");

        // We using scene change event
        SceneManager.sceneLoaded += OnSceneLoaded;
    }

    void Update()
    {
        // Discord Callback update
        discord.RunCallbacks();
    }

    private void OnApplicationQuit()
    {
        // Clearing resources upon exit
        discord.Dispose();
    }

    // DiscordActivity Update
    public void UpdateDiscordActivity(string sceneName, string imageKey)
    {
        var activityManager = discord.GetActivityManager();

        var activity = new Discord.Activity
        {
            State = "In " + sceneName, // Статус
            Details = "Researching the map", // Описание
            Timestamps =
            {
                Start = DateTimeOffset.Now.ToUnixTimeSeconds()
            },
            Assets =
            {
                LargeImage = imageKey, // Ключ картинки для большой иконки
                LargeText = "Research: " + sceneName // Текст при наведении
            }
        };

        activityManager.UpdateActivity(activity, result =>
        {
            if (result == Discord.Result.Ok)
            {
                Debug.Log("Discord RPC was updated: " + sceneName);
            }
            else
            {
                Debug.LogError("Error updating Discord RPC: " + result);
            }
        });
    }

    // Scene change event handler
    void OnSceneLoaded(Scene scene, LoadSceneMode mode)
    {
        // Update the activity depending on the loaded scene
        UpdateDiscordActivity(scene.name, GetImageKey(scene.name));
    }

    // Function to get image key by scene name
    private string GetImageKey(string sceneName)
    {
        // Linking the scene name to the image key
        switch (sceneName)
        {
            case "Scene1":
                return "Scene1"; // Key for Scene1
            case "Menu":
                return "Menu"; // Key for MainMenu
            // Placeholders for your scenes
            case "Scene2":
                return "desert_image_key"; // Key for Scene2
            case "Scene3":
                return "city_image_key"; // Key for Scene3
            default:
                return "default"; // Key for default
        }
    }
}