2026-05-27 21:33:47 +02:00
26 changed files with 4471 additions and 282 deletions
--- a/Assets/ClientSDK.meta
+++ b/Assets/ClientSDK.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 799f52449ae21404c9a7593f6dc28c60
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/ClientSDK/Encryption.cs
+++ b/Assets/ClientSDK/Encryption.cs
@@ -0,0 +1,285 @@
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace GeoSus.Client
+{
+    // Klientská strana šifrování - generuje session key, šifruje RSA, AES-CBC session
+    // Používá AES-CBC místo AES-GCM pro kompatibilitu s Unity
+    public class ClientEncryption : IDisposable
+    {
+        private byte[] _sessionKey;
+        private byte[] _sessionIv;
+        private long _nonceCounter;
+        private readonly object _lock = new object();
+        
+        // Kontrola, zda je session key nastaven
+        public bool HasSessionKey => _sessionKey != null && _sessionIv != null;
+        
+        // Generuje nový session key a IV
+        public void GenerateSessionKey()
+        {
+            _sessionKey = new byte[32]; // AES-256
+            _sessionIv = new byte[16];  // CBC IV (16 bytes)
+            
+            using (var rng = RandomNumberGenerator.Create())
+            {
+                rng.GetBytes(_sessionKey);
+                rng.GetBytes(_sessionIv);
+            }
+        }
+        
+        public byte[] SessionKey => _sessionKey ?? throw new InvalidOperationException("Session key not generated");
+        public byte[] SessionIV => _sessionIv ?? throw new InvalidOperationException("Session IV not generated");
+        
+        // Zašifruje session key pomocí RSA public key serveru
+        public (string EncryptedKey, string EncryptedIV) EncryptSessionKeyForServer(string rsaPublicKeyPem)
+        {
+            if (_sessionKey == null || _sessionIv == null)
+                throw new InvalidOperationException("Session key not generated");
+                
+            using (var rsa = RSA.Create())
+            {
+                // Parse PEM - extrahuj Base64 obsah
+                var pemLines = rsaPublicKeyPem.Split('\n');
+                var base64 = new StringBuilder();
+                foreach (var line in pemLines)
+                {
+                    var trimmed = line.Trim();
+                    if (!trimmed.StartsWith("-----") && !string.IsNullOrEmpty(trimmed))
+                    {
+                        base64.Append(trimmed);
+                    }
+                }
+                
+                var keyBytes = Convert.FromBase64String(base64.ToString());
+                
+                // Unity kompatibilní import - parsujeme SubjectPublicKeyInfo ručně
+                ImportSubjectPublicKeyInfoManual(rsa, keyBytes);
+                
+                // Používáme OaepSHA1 pro Unity kompatibilitu (OaepSHA256 není podporován)
+                var encryptedKey = rsa.Encrypt(_sessionKey, RSAEncryptionPadding.OaepSHA1);
+                var encryptedIv = rsa.Encrypt(_sessionIv, RSAEncryptionPadding.OaepSHA1);
+                
+                return (Convert.ToBase64String(encryptedKey), Convert.ToBase64String(encryptedIv));
+            }
+        }
+        
+        // Ručně parsuje SubjectPublicKeyInfo (DER) a importuje RSA klíč - Unity kompatibilní
+        private static void ImportSubjectPublicKeyInfoManual(RSA rsa, byte[] subjectPublicKeyInfo)
+        {
+            // SubjectPublicKeyInfo ::= SEQUENCE {
+            //   algorithm AlgorithmIdentifier,
+            //   subjectPublicKey BIT STRING }
+            // RSAPublicKey ::= SEQUENCE { modulus INTEGER, publicExponent INTEGER }
+            
+            int index = 0;
+            
+            // Outer SEQUENCE
+            if (subjectPublicKeyInfo[index++] != 0x30)
+                throw new InvalidOperationException("Invalid SubjectPublicKeyInfo");
+            ReadLength(subjectPublicKeyInfo, ref index);
+            
+            // AlgorithmIdentifier SEQUENCE - skip it
+            if (subjectPublicKeyInfo[index++] != 0x30)
+                throw new InvalidOperationException("Invalid AlgorithmIdentifier");
+            int algLen = ReadLength(subjectPublicKeyInfo, ref index);
+            index += algLen;
+            
+            // BIT STRING containing RSAPublicKey
+            if (subjectPublicKeyInfo[index++] != 0x03)
+                throw new InvalidOperationException("Invalid BIT STRING");
+            ReadLength(subjectPublicKeyInfo, ref index);
+            index++; // Skip unused bits byte (should be 0)
+            
+            // RSAPublicKey SEQUENCE
+            if (subjectPublicKeyInfo[index++] != 0x30)
+                throw new InvalidOperationException("Invalid RSAPublicKey");
+            ReadLength(subjectPublicKeyInfo, ref index);
+            
+            // Modulus INTEGER
+            byte[] modulus = ReadInteger(subjectPublicKeyInfo, ref index);
+            
+            // Exponent INTEGER
+            byte[] exponent = ReadInteger(subjectPublicKeyInfo, ref index);
+            
+            var parameters = new RSAParameters
+            {
+                Modulus = modulus,
+                Exponent = exponent
+            };
+            rsa.ImportParameters(parameters);
+        }
+        
+        private static int ReadLength(byte[] data, ref int index)
+        {
+            int length = data[index++];
+            if ((length & 0x80) != 0)
+            {
+                int numBytes = length & 0x7F;
+                length = 0;
+                for (int i = 0; i < numBytes; i++)
+                {
+                    length = (length << 8) | data[index++];
+                }
+            }
+            return length;
+        }
+        
+        private static byte[] ReadInteger(byte[] data, ref int index)
+        {
+            if (data[index++] != 0x02)
+                throw new InvalidOperationException("Expected INTEGER");
+            int length = ReadLength(data, ref index);
+            
+            // Skip leading zero if present (used for positive sign in DER)
+            int originalLength = length;
+            int start = index;
+            if (length > 1 && data[start] == 0x00)
+            {
+                start++;
+                length--;
+            }
+            
+            byte[] result = new byte[length];
+            Buffer.BlockCopy(data, start, result, 0, length);
+            index += originalLength;
+                
+            return result;
+        }
+        
+        // Šifruje zprávu pomocí AES-256-CBC s HMAC
+        public byte[] Encrypt(byte[] plaintext)
+        {
+            if (_sessionKey == null || _sessionIv == null)
+                throw new InvalidOperationException("Session key not set");
+                
+            lock (_lock)
+            {
+                // Generuj unikátní IV pro tuto zprávu
+                var iv = GetNextIV();
+                
+                using (var aes = Aes.Create())
+                {
+                    aes.Key = _sessionKey;
+                    aes.IV = iv;
+                    aes.Mode = CipherMode.CBC;
+                    aes.Padding = PaddingMode.PKCS7;
+                    
+                    byte[] ciphertext;
+                    using (var encryptor = aes.CreateEncryptor())
+                    using (var ms = new MemoryStream())
+                    {
+                        using (var cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write))
+                        {
+                            cs.Write(plaintext, 0, plaintext.Length);
+                        }
+                        ciphertext = ms.ToArray();
+                    }
+                    
+                    // Compute HMAC pro integritu
+                    byte[] hmac;
+                    using (var hmacSha = new HMACSHA256(_sessionKey))
+                    {
+                        var toSign = new byte[iv.Length + ciphertext.Length];
+                        Buffer.BlockCopy(iv, 0, toSign, 0, iv.Length);
+                        Buffer.BlockCopy(ciphertext, 0, toSign, iv.Length, ciphertext.Length);
+                        hmac = hmacSha.ComputeHash(toSign);
+                    }
+                    
+                    // Výstup: [16 bytes IV][32 bytes HMAC][ciphertext]
+                    var result = new byte[16 + 32 + ciphertext.Length];
+                    Buffer.BlockCopy(iv, 0, result, 0, 16);
+                    Buffer.BlockCopy(hmac, 0, result, 16, 32);
+                    Buffer.BlockCopy(ciphertext, 0, result, 48, ciphertext.Length);
+                    
+                    return result;
+                }
+            }
+        }
+        
+        // Dešifruje zprávu pomocí AES-256-CBC s HMAC ověřením
+        public byte[] Decrypt(byte[] encrypted)
+        {
+            if (_sessionKey == null)
+                throw new InvalidOperationException("Session key not set");
+                
+            if (encrypted.Length < 48) return null;
+            
+            try
+            {
+                var iv = new byte[16];
+                var hmac = new byte[32];
+                var ciphertext = new byte[encrypted.Length - 48];
+                
+                Buffer.BlockCopy(encrypted, 0, iv, 0, 16);
+                Buffer.BlockCopy(encrypted, 16, hmac, 0, 32);
+                Buffer.BlockCopy(encrypted, 48, ciphertext, 0, ciphertext.Length);
+                
+                // Ověř HMAC
+                byte[] expectedHmac;
+                using (var hmacSha = new HMACSHA256(_sessionKey))
+                {
+                    var toVerify = new byte[iv.Length + ciphertext.Length];
+                    Buffer.BlockCopy(iv, 0, toVerify, 0, iv.Length);
+                    Buffer.BlockCopy(ciphertext, 0, toVerify, iv.Length, ciphertext.Length);
+                    expectedHmac = hmacSha.ComputeHash(toVerify);
+                }
+                
+                // Constant-time compare
+                var diff = 0;
+                for (int i = 0; i < 32; i++)
+                {
+                    diff |= hmac[i] ^ expectedHmac[i];
+                }
+                if (diff != 0) return null; // HMAC mismatch
+                
+                using (var aes = Aes.Create())
+                {
+                    aes.Key = _sessionKey;
+                    aes.IV = iv;
+                    aes.Mode = CipherMode.CBC;
+                    aes.Padding = PaddingMode.PKCS7;
+                    
+                    using (var decryptor = aes.CreateDecryptor())
+                    using (var ms = new MemoryStream(ciphertext))
+                    using (var cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read))
+                    using (var output = new MemoryStream())
+                    {
+                        cs.CopyTo(output);
+                        return output.ToArray();
+                    }
+                }
+            }
+            catch (CryptographicException)
+            {
+                return null;
+            }
+        }
+        
+        private byte[] GetNextIV()
+        {
+            if (_sessionIv == null)
+                throw new InvalidOperationException("Session IV not set");
+                
+            var iv = new byte[16];
+            Buffer.BlockCopy(_sessionIv, 0, iv, 0, 8);
+            
+            var counter = System.Threading.Interlocked.Increment(ref _nonceCounter);
+            var counterBytes = BitConverter.GetBytes(counter);
+            Buffer.BlockCopy(counterBytes, 0, iv, 8, 8);
+            
+            return iv;
+        }
+        
+        public void Dispose()
+        {
+            if (_sessionKey != null)
+            {
+                Array.Clear(_sessionKey, 0, _sessionKey.Length);
+                _sessionKey = null;
+            }
+        }
+    }
+}
--- a/Assets/ClientSDK/Encryption.cs.meta
+++ b/Assets/ClientSDK/Encryption.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: bc06bb57786c7e142b06ec231e5cf709
--- a/Assets/ClientSDK/EventDispatcher.cs
+++ b/Assets/ClientSDK/EventDispatcher.cs
@@ -0,0 +1,73 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+
+namespace GeoSus.Client
+{
+    // Event dispatcher pro Unity main thread
+// Unity může přidat SynchronizationContext, nebo polling z Update()
+public class EventDispatcher
+{
+    private readonly Queue<Action> _pendingActions = new Queue<Action>();
+    private readonly object _lock = new object();
+    private SynchronizationContext? _syncContext;
+    
+    public EventDispatcher()
+    {
+        // Pokusíme se zachytit aktuální synchronization context (Unity main thread)
+        _syncContext = SynchronizationContext.Current;
+    }
+    
+    // Volat z networking vlákna - naplánuje callback na main thread
+    public void Post(Action action)
+    {
+        if (_syncContext != null)
+        {
+            _syncContext.Post(_ => action(), null);
+        }
+        else
+        {
+            // Fallback - přidáme do fronty pro polling
+            lock (_lock)
+            {
+                _pendingActions.Enqueue(action);
+            }
+        }
+    }
+    
+    // Volat z Unity Update() pokud není SynchronizationContext
+    public void ProcessPendingActions()
+    {
+        Action[] actions;
+        lock (_lock)
+        {
+            if (_pendingActions.Count == 0) return;
+            actions = _pendingActions.ToArray();
+            _pendingActions.Clear();
+        }
+        
+        foreach (var action in actions)
+        {
+            try
+            {
+                action();
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"EventDispatcher error: {ex}");
+            }
+        }
+    }
+    
+    public int PendingCount
+    {
+        get
+        {
+            lock (_lock)
+            {
+                return _pendingActions.Count;
+            }
+        }
+    }
+}
+}
--- a/Assets/ClientSDK/EventDispatcher.cs.meta
+++ b/Assets/ClientSDK/EventDispatcher.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 1d2251b279edb0147bd274a884ac878b
--- a/Assets/ClientSDK/GameClient.cs
+++ b/Assets/ClientSDK/GameClient.cs
@@ -0,0 +1,607 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Sockets;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace GeoSus.Client
+{
+    // Hlavní klientská třída pro připojení k serveru
+public class GameClient : IDisposable
+{
+    private TcpClient? _tcpClient;
+    private NetworkStream? _stream;
+    private ClientEncryption? _encryption;
+    private CancellationTokenSource? _cts;
+    private Task? _receiveTask;
+    private int _clientSeq;
+    private readonly object _sendLock = new object();
+    private bool _handshakeComplete;
+    
+    public string ClientUuid { get; }
+    public string DisplayName { get; set; }
+    public bool IsConnected => _tcpClient?.Connected ?? false;
+    public bool IsReady => IsConnected && _handshakeComplete && (_encryption?.HasSessionKey ?? false);
+    public EventDispatcher Dispatcher { get; }
+    
+    // Events - voláno na main thread přes dispatcher
+    public event Action? OnConnected;
+    public event Action<string>? OnDisconnected;
+    public event Action<string>? OnError;
+    public event Action<Message>? OnMessage;
+    public event Action<GameEvent>? OnGameEvent;
+    
+    // Lobby state
+    public string? LobbyId { get; private set; }
+    public string? JoinCode { get; private set; }
+    public LobbyState? CurrentLobbyState { get; private set; }
+    public PlayerRole? MyRole { get; private set; }
+    public List<GameTask> MyTasks { get; } = new List<GameTask>();
+    public Position MyPosition { get; set; }
+    public Dictionary<string, PlayerPositionInfo> PlayerPositions { get; } = new Dictionary<string, PlayerPositionInfo>();
+    public List<Body> Bodies { get; } = new List<Body>();
+    public int Ping { get; private set; }
+    public long LastEventId { get; private set; }
+    
+    /// <summary>Returns true if this client is the current lobby owner</summary>
+    public bool IsOwner => CurrentLobbyState?.OwnerId == ClientUuid;
+    
+    public GameClient(string clientUuid, string displayName)
+    {
+        ClientUuid = clientUuid;
+        DisplayName = displayName;
+        Dispatcher = new EventDispatcher();
+    }
+    
+    #region Connection
+    
+    public async Task<bool> ConnectAsync(string host, int port)
+    {
+        try
+        {
+            _tcpClient = new TcpClient();
+            await _tcpClient.ConnectAsync(host, port);
+            _stream = _tcpClient.GetStream();
+            _encryption = new ClientEncryption();
+            _cts = new CancellationTokenSource();
+            
+            // Handshake
+            if (!await PerformHandshakeAsync())
+            {
+                Disconnect("Handshake failed");
+                return false;
+            }
+            
+            // Spustíme příjem zpráv
+            _receiveTask = Task.Run(() => ReceiveLoopAsync(_cts.Token));
+            
+            Dispatcher.Post(() => OnConnected?.Invoke());
+            return true;
+        }
+        catch (Exception ex)
+        {
+            Dispatcher.Post(() => OnError?.Invoke(ex.Message));
+            return false;
+        }
+    }
+    
+    private async Task<bool> PerformHandshakeAsync()
+    {
+        if (_stream == null || _encryption == null) return false;
+        
+        // 1. ClientHello
+        var hello = new ClientHello
+        {
+            ClientUuid = ClientUuid,
+            DisplayName = DisplayName
+        };
+        await SendPlainAsync(hello);
+        
+        // 2. ServerHello
+        var serverHelloData = await ReadMessageAsync();
+        if (serverHelloData == null) return false;
+        
+        var serverHello = MessageSerializer.Deserialize(serverHelloData) as ServerHello;
+        if (serverHello == null) return false;
+        
+        // 3. Generujeme session key a šifrujeme RSA
+        _encryption.GenerateSessionKey();
+        var (encKey, encIv) = _encryption.EncryptSessionKeyForServer(serverHello.RsaPublicKeyPem);
+        
+        var keyExchange = new KeyExchange
+        {
+            EncryptedSessionKey = encKey,
+            EncryptedIV = encIv
+        };
+        await SendPlainAsync(keyExchange);
+        
+        // 4. KeyExchangeAck (šifrovaně)
+        var ackData = await ReadMessageAsync();
+        if (ackData == null) return false;
+        
+        var decrypted = _encryption.Decrypt(ackData);
+        if (decrypted == null) return false;
+        
+        var ack = MessageSerializer.Deserialize(decrypted) as KeyExchangeAck;
+        if (ack?.Status == "success")
+        {
+            _handshakeComplete = true;
+            return true;
+        }
+        return false;
+    }
+    
+    public void Disconnect(string reason = "User disconnected")
+    {
+        _cts?.Cancel();
+        _tcpClient?.Close();
+        _tcpClient = null;
+        _stream = null;
+        _encryption?.Dispose();
+        _encryption = null;
+        
+        LobbyId = null;
+        JoinCode = null;
+        CurrentLobbyState = null;
+        MyRole = null;
+        MyTasks.Clear();
+        PlayerPositions.Clear();
+        Bodies.Clear();
+        
+        Dispatcher.Post(() => OnDisconnected?.Invoke(reason));
+    }
+    
+    #endregion
+    
+    #region Sending
+    
+    public void Send(Message message)
+    {
+        if (_stream == null || _encryption == null || !IsConnected) return;
+        
+        message.ClientSeq = Interlocked.Increment(ref _clientSeq);
+        if (string.IsNullOrEmpty(message.ActionId))
+        {
+            message.ActionId = Guid.NewGuid().ToString("N").Substring(0, 8);
+        }
+        
+        var plain = MessageSerializer.Serialize(message);
+        var encrypted = _encryption.Encrypt(plain);
+        
+        lock (_sendLock)
+        {
+            try
+            {
+                SendData(encrypted);
+            }
+            catch (Exception ex)
+            {
+                Dispatcher.Post(() => OnError?.Invoke($"Send error: {ex.Message}"));
+            }
+        }
+    }
+    
+    private async Task SendPlainAsync(Message message)
+    {
+        if (_stream == null) return;
+        var data = MessageSerializer.Serialize(message);
+        await SendDataAsync(data);
+    }
+    
+    private void SendData(byte[] data)
+    {
+        if (_stream == null) return;
+        
+        var lengthBuffer = BitConverter.GetBytes(data.Length);
+        if (BitConverter.IsLittleEndian)
+            Array.Reverse(lengthBuffer);
+            
+        _stream.Write(lengthBuffer, 0, 4);
+        _stream.Write(data, 0, data.Length);
+        _stream.Flush();
+    }
+    
+    private async Task SendDataAsync(byte[] data)
+    {
+        if (_stream == null) return;
+        
+        var lengthBuffer = BitConverter.GetBytes(data.Length);
+        if (BitConverter.IsLittleEndian)
+            Array.Reverse(lengthBuffer);
+            
+        await _stream.WriteAsync(lengthBuffer, 0, 4);
+        await _stream.WriteAsync(data, 0, data.Length);
+        await _stream.FlushAsync();
+    }
+    
+    #endregion
+    
+    #region Receiving
+    
+    private async Task ReceiveLoopAsync(CancellationToken ct)
+    {
+        int decryptFailures = 0;
+        
+        try
+        {
+            while (!ct.IsCancellationRequested && IsConnected)
+            {
+                var data = await ReadMessageAsync();
+                if (data == null) break;
+                
+                var decrypted = _encryption?.Decrypt(data);
+                if (decrypted == null)
+                {
+                    decryptFailures++;
+                    if (decryptFailures >= 3)
+                    {
+                        Disconnect("Too many decryption failures");
+                        return;
+                    }
+                    continue;
+                }
+                
+                decryptFailures = 0;
+                
+                var message = MessageSerializer.Deserialize(decrypted);
+                if (message != null)
+                {
+                    ProcessMessage(message);
+                }
+            }
+        }
+        catch (Exception ex) when (!ct.IsCancellationRequested)
+        {
+            Disconnect($"Connection error: {ex.Message}");
+        }
+    }
+    
+    private async Task<byte[]?> ReadMessageAsync()
+    {
+        if (_stream == null) return null;
+        
+        var lengthBuffer = new byte[4];
+        var read = await _stream.ReadAsync(lengthBuffer, 0, 4);
+        if (read < 4) return null;
+        
+        if (BitConverter.IsLittleEndian)
+            Array.Reverse(lengthBuffer);
+        var length = BitConverter.ToInt32(lengthBuffer, 0);
+        
+        if (length <= 0 || length > 1048576) return null;
+        
+        var buffer = new byte[length];
+        var totalRead = 0;
+        while (totalRead < length)
+        {
+            read = await _stream.ReadAsync(buffer, totalRead, length - totalRead);
+            if (read == 0) return null;
+            totalRead += read;
+        }
+        
+        return buffer;
+    }
+    
+    private void ProcessMessage(Message message)
+    {
+        // Zpracujeme speciální typy
+        switch (message)
+        {
+            case CreateLobbyResponse r:
+                if (r.Success)
+                {
+                    LobbyId = r.LobbyId;
+                    JoinCode = r.JoinCode;
+                    CurrentLobbyState = r.LobbyState;
+                }
+                break;
+                
+            case JoinLobbyResponse r:
+                if (r.Success)
+                {
+                    LobbyId = r.LobbyId;
+                    CurrentLobbyState = r.LobbyState;
+                    JoinCode = r.LobbyState?.JoinCode;
+                }
+                break;
+                
+            case PositionBroadcast b:
+                ProcessPositionBroadcast(b);
+                break;
+                
+            case Pong p:
+                var now = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+                Ping = (int)(now - p.ClientTime);
+                break;
+                
+            case GameEvent evt:
+                ProcessGameEvent(evt);
+                Dispatcher.Post(() => OnGameEvent?.Invoke(evt));
+                break;
+        }
+        
+        Dispatcher.Post(() => OnMessage?.Invoke(message));
+    }
+    
+    private void ProcessPositionBroadcast(PositionBroadcast broadcast)
+    {
+        PlayerPositions.Clear();
+        foreach (var player in broadcast.Players)
+        {
+            PlayerPositions[player.ClientUuid] = player;
+        }
+    }
+    
+    private void ProcessGameEvent(GameEvent evt)
+    {
+        LastEventId = evt.EventId;
+        
+        switch (evt.EventType)
+        {
+            case "PlayerJoined":
+                // Add player to lobby state
+                var joinedPayload = evt.GetPayload<PlayerJoinedPayload>();
+                if (joinedPayload != null && CurrentLobbyState?.Players != null)
+                {
+                    // Check if player already exists
+                    bool exists = CurrentLobbyState.Players.Any(p => p.ClientUuid == joinedPayload.ClientUuid);
+                    if (!exists)
+                    {
+                        CurrentLobbyState.Players.Add(new PlayerInfo
+                        {
+                            ClientUuid = joinedPayload.ClientUuid,
+                            DisplayName = joinedPayload.DisplayName,
+                            IsOwner = false,
+                            IsReady = false,
+                            State = PlayerState.Alive
+                        });
+                    }
+                }
+                break;
+                
+            case "PlayerLeft":
+                // Remove player from lobby state
+                var leftPayload = evt.GetPayload<PlayerLeftPayload>();
+                if (leftPayload != null && CurrentLobbyState?.Players != null)
+                {
+                    CurrentLobbyState.Players.RemoveAll(p => p.ClientUuid == leftPayload.ClientUuid);
+                }
+                break;
+            
+            case "HostChanged":
+                // Update lobby owner
+                var hostPayload = evt.GetPayload<HostChangedPayload>();
+                if (hostPayload != null && CurrentLobbyState != null)
+                {
+                    CurrentLobbyState.OwnerId = hostPayload.NewHostId;
+                    // Update IsOwner flag on all players
+                    foreach (var player in CurrentLobbyState.Players)
+                    {
+                        player.IsOwner = player.ClientUuid == hostPayload.NewHostId;
+                    }
+                }
+                break;
+            
+            case "GameStarting":
+                // Game is entering loading phase - update lobby state if available
+                if (CurrentLobbyState != null)
+                {
+                    CurrentLobbyState.Phase = GamePhase.Loading;
+                }
+                break;
+                
+            case "MapDataReady":
+                // Map data received - store it and send confirmation
+                var mapDataPayload = evt.GetPayload<MapDataReadyPayload>();
+                if (mapDataPayload != null && CurrentLobbyState != null)
+                {
+                    CurrentLobbyState.MapData = mapDataPayload.MapData;
+                    CurrentLobbyState.MapDataReady = true;
+                }
+                // Send confirmation to server
+                Send(new MapDataReceived());
+                break;
+            
+            case "GameStarted":
+                // Game officially started - update phase
+                if (CurrentLobbyState != null)
+                {
+                    CurrentLobbyState.Phase = GamePhase.Playing;
+                }
+                break;
+                
+            case "RoleAssigned":
+                var rolePayload = evt.GetPayload<RoleAssignedPayload>();
+                if (rolePayload != null && rolePayload.ClientUuid == ClientUuid)
+                {
+                    MyRole = rolePayload.Role;
+                    MyTasks.Clear();
+                    if (rolePayload.Tasks != null)
+                    {
+                        MyTasks.AddRange(rolePayload.Tasks);
+                    }
+                }
+                break;
+                
+            case "PlayerKilled":
+                var killPayload = evt.GetPayload<PlayerKilledPayload>();
+                if (killPayload != null)
+                {
+                    Bodies.Add(new Body
+                    {
+                        BodyId = killPayload.BodyId,
+                        VictimId = killPayload.VictimId,
+                        Location = killPayload.Location
+                    });
+                }
+                break;
+                
+            case "MeetingStarted":
+                if (CurrentLobbyState != null)
+                {
+                    CurrentLobbyState.Phase = GamePhase.Meeting;
+                }
+                break;
+                
+            case "VotingClosed":
+                Bodies.Clear(); // Bodies zmizí po meetingu
+                if (CurrentLobbyState != null)
+                {
+                    CurrentLobbyState.Phase = GamePhase.Playing;
+                }
+                break;
+                
+            case "GameEnded":
+                if (CurrentLobbyState != null)
+                {
+                    CurrentLobbyState.Phase = GamePhase.Ended;
+                }
+                break;
+        }
+    }
+    
+    #endregion
+    
+    #region Game Actions
+    
+    public void CreateLobby(Position? center = null, int impostorCount = 1, int taskCount = 5, string? password = null, double playAreaRadius = 500)
+    {
+        Send(new CreateLobby
+        {
+            PlayAreaCenter = center,
+            PlayAreaRadius = playAreaRadius,
+            ImpostorCount = impostorCount,
+            TaskCount = taskCount,
+            Password = password
+        });
+    }
+    
+    public void JoinLobby(string joinCode, string? password = null)
+    {
+        Send(new JoinLobby
+        {
+            JoinCode = joinCode.ToUpperInvariant(),
+            Password = password
+        });
+    }
+    
+    public void LeaveLobby()
+    {
+        Send(new LeaveLobby());
+        LobbyId = null;
+        JoinCode = null;
+    }
+    
+    public void StartGame()
+    {
+        Send(new StartGame());
+    }
+    
+    public void ReturnToLobby()
+    {
+        Send(new ReturnToLobby());
+    }
+    
+    public void UpdatePosition(Position position)
+    {
+        MyPosition = position;
+        Send(new UpdatePosition { Position = position });
+    }
+    
+    public void Kill(string targetUuid)
+    {
+        Send(new KillAttempt { TargetClientUuid = targetUuid });
+    }
+    
+    public void ReportBody(string bodyId)
+    {
+        Send(new ReportBody { BodyId = bodyId });
+    }
+    
+    public void CallEmergencyMeeting()
+    {
+        Send(new CallEmergencyMeeting());
+    }
+    
+    public void Vote(string? targetUuid)
+    {
+        Send(new CastVote { TargetClientUuid = targetUuid });
+    }
+    
+    /// <summary>
+    /// Pokus o dokončení tasku. Server ověří že hráč je na správné pozici.
+    /// </summary>
+    public void CompleteTask(string taskId)
+    {
+        Send(new TaskComplete { TaskId = taskId });
+    }
+    
+    public void SendPing()
+    {
+        Send(new Ping { ClientTime = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds() });
+    }
+    
+    public void Reconnect(string lobbyId)
+    {
+        Send(new Reconnect { LobbyId = lobbyId, LastEventId = LastEventId });
+    }
+    
+    #endregion
+    
+    #region Helpers
+    
+    public Body? FindNearbyBody(double maxDistance)
+    {
+        foreach (var body in Bodies)
+        {
+            if (MyPosition.DistanceTo(body.Location) <= maxDistance)
+            {
+                return body;
+            }
+        }
+        return null;
+    }
+    
+    public string? FindNearbyPlayer(double maxDistance, bool aliveOnly = true)
+    {
+        foreach (var (uuid, info) in PlayerPositions)
+        {
+            if (uuid == ClientUuid) continue;
+            if (aliveOnly && info.State != PlayerState.Alive) continue;
+            
+            if (MyPosition.DistanceTo(info.Position) <= maxDistance)
+            {
+                return uuid;
+            }
+        }
+        return null;
+    }
+    
+    public GameTask? FindNearbyTask(double maxDistance)
+    {
+        foreach (var task in MyTasks)
+        {
+            if (MyPosition.DistanceTo(task.Location) <= maxDistance)
+            {
+                return task;
+            }
+        }
+        return null;
+    }
+    
+    // Volat z Unity Update() pro zpracování callbacků
+    public void Update()
+    {
+        Dispatcher.ProcessPendingActions();
+    }
+    
+    #endregion
+    
+    public void Dispose()
+    {
+        Disconnect("Disposed");
+        _encryption?.Dispose();
+    }
+}
+}
--- a/Assets/ClientSDK/GameClient.cs.meta
+++ b/Assets/ClientSDK/GameClient.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 91e0f647c37b0b94b83f53bb854db28c
--- a/Assets/ClientSDK/Protocol.cs
+++ b/Assets/ClientSDK/Protocol.cs
--- a/Assets/ClientSDK/Protocol.cs.meta
+++ b/Assets/ClientSDK/Protocol.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 14463228dfea2264ebfc36c3a7dc4b99
--- a/Assets/ClientSDK/SimulatorClient.cs
+++ b/Assets/ClientSDK/SimulatorClient.cs
--- a/Assets/ClientSDK/SimulatorClient.cs.meta
+++ b/Assets/ClientSDK/SimulatorClient.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 80ef0979df5d1fe489225f3e5edadc5c
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@@ -0,0 +1,8 @@
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+guid: 3a4035bdb812fee4f96cb1aa1b24c999
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--- a/Assets/GameManager/ITask.cs
+++ b/Assets/GameManager/ITask.cs
@@ -1,7 +1,8 @@
-//using GeoSus.Client;
+using GeoSus.Client;
 using System;
 using UnityEngine;

+
 public enum TaskType
 {
    Task //TODO: Typy úkolù
@@ -14,7 +15,7 @@ public interface ITask
    public string TaskID { get; } // Unikátní ID úkolu pro server
    public TaskType TaskType { get; } // Typ úkolu
    public string TaskName { get; } // Viditelný název úkolu
-    public (double, double) TaskLocation { get; } // Polohy na mapì
+    public Position TaskLocation { get; } // Polohy na mapì
    public bool IsCompleted { get; } // Stav dokonèení úkolu

    void Initialize(Action<ITask> onCompleted); // Vytvoøení tasku + naètení postupu
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@@ -5199,7 +5114,7 @@ SceneRoots:
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  - {fileID: 1092836727}
  - {fileID: 1169290264}
-  - {fileID: 727261130}
+  - {fileID: 9074197596846296259}
  - {fileID: 6503154}
  - {fileID: 1386843751}
  - {fileID: 1704821284}
--- a/Assets/Scripts/flappy_bird
+++ b/Assets/Scripts/flappy_bird
@@ -2,6 +2,7 @@ using System;
 using UnityEngine;
 using UnityEngine.SceneManagement;
 using TMPro;
+using GeoSus.Client;

 public class FlappyBirdAllInOne : MonoBehaviour, ITask
 {
@@ -35,7 +36,7 @@ public class FlappyBirdAllInOne : MonoBehaviour, ITask
    public string TaskID { get; set; }
    public TaskType TaskType { get; set; }
    public string TaskName { get; set; }
-    public (double, double) TaskLocation { get; set; }
+    public Position TaskLocation { get; set; }
    public bool IsCompleted { get; private set; }


--- a/Assets/Scripts/hod_veci_do_diry/DraggableObject.cs
+++ b/Assets/Scripts/hod_veci_do_diry/DraggableObject.cs
@@ -1,46 +1,55 @@
 using UnityEngine;

-[RequireComponent(typeof(Rigidbody2D))]
-[RequireComponent(typeof(Collider2D))]
+[RequireComponent(typeof(Rigidbody))]
+[RequireComponent(typeof(Collider))]
 public class DraggableObject : MonoBehaviour
 {
    [Header("Přetahování")]
    public float dragSmoothness = 15f;

    [Header("Vizuální zpětná vazba")]
-    public SpriteRenderer spriteRenderer;
+    public Renderer Renderer;
    public Color normalColor = Color.white;
    public Color dragColor = new Color(1f, 1f, 0.5f);
    public float scaleOnDrag = 1.15f;

-    private Rigidbody2D rb;
+    private Rigidbody rb;
    private Camera mainCamera;
    private bool isDragging = false;
    private Vector3 targetPosition;
    private Vector3 originalScale;
    private bool hasBeenScored = false;
+    private Plane _dragPlane;
+    private Collider col;

    void Awake()
    {
-        rb = GetComponent<Rigidbody2D>();
+        rb = GetComponent<Rigidbody>();
+        col = GetComponent<Collider>();
        mainCamera = Camera.main;
        originalScale = transform.localScale;
-        if (spriteRenderer == null)
-            spriteRenderer = GetComponent<SpriteRenderer>();
+        if (Renderer == null)
+            Renderer = GetComponent<Renderer>();
    }

    void Start()
    {
-        rb.gravityScale = 0f;
-        rb.constraints = RigidbodyConstraints2D.FreezeRotation;
+        rb.useGravity = false;
+        rb.constraints = RigidbodyConstraints.FreezeRotation;
        targetPosition = transform.position;
    }

    void Update()
    {
        HandleInput();
+    }
+    void FixedUpdate()
+    {
        if (isDragging)
-            transform.position = Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * dragSmoothness);
+        {
+            Vector3 newPos = Vector3.Lerp(rb.position, targetPosition, Time.fixedDeltaTime * dragSmoothness);
+            rb.MovePosition(newPos);
+        }
    }

    void HandleInput()
@@ -48,13 +57,13 @@ public class DraggableObject : MonoBehaviour
        if (Input.touchCount > 0)
        {
            Touch touch = Input.GetTouch(0);
-            Vector3 worldPos = mainCamera.ScreenToWorldPoint(new Vector3(touch.position.x, touch.position.y, 10f));
+            //Vector3 worldPos = mainCamera.ScreenToWorldPoint(new Vector3(touch.position.x, touch.position.y, 10f));

            if (touch.phase == TouchPhase.Began)
-                TryStartDrag(worldPos);
+                TryStartDrag(touch.position);
            else if (touch.phase == TouchPhase.Moved || touch.phase == TouchPhase.Stationary)
            {
-                if (isDragging) targetPosition = worldPos;
+                if (isDragging) UpdateDrag(touch.position);
            }
            else if (touch.phase == TouchPhase.Ended || touch.phase == TouchPhase.Canceled)
            {
@@ -63,49 +72,70 @@ public class DraggableObject : MonoBehaviour
        }
        else
        {
-            Vector3 worldPos = mainCamera.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, 10f));
+            //Vector3 worldPos = mainCamera.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, 10f));

            if (Input.GetMouseButtonDown(0))
-                TryStartDrag(worldPos);
+                TryStartDrag(Input.mousePosition);
            else if (Input.GetMouseButton(0) && isDragging)
-                targetPosition = worldPos;
+                UpdateDrag(Input.mousePosition);
            else if (Input.GetMouseButtonUp(0) && isDragging)
                EndDrag();
        }
    }

-    void TryStartDrag(Vector3 worldPos)
+    void TryStartDrag(Vector3 screenPos)
    {
-        if (GetComponent<Collider2D>().OverlapPoint(worldPos))
-            StartDrag(worldPos);
+        Debug.Log("Trying to start drag at: " + screenPos);
+        Ray ray = mainCamera.ScreenPointToRay(screenPos);
+        RaycastHit hit;
+
+        if (Physics.Raycast(ray, out hit))
+        {
+            if (hit.collider == col)
+            {
+                StartDrag(hit.point);
+            }
+        }
    }

-    void StartDrag(Vector3 worldPos)
+    void StartDrag(Vector3 hitPoint)
    {
+        Debug.Log("Started dragging at: " + hitPoint);
        isDragging = true;
-        rb.linearVelocity = Vector2.zero;
-        targetPosition = worldPos;
+        rb.isKinematic = false;
+        rb.linearVelocity = Vector3.zero;
+        _dragPlane = new Plane(-mainCamera.transform.forward, hitPoint);
+        targetPosition = hitPoint;
        transform.localScale = originalScale * scaleOnDrag;
-        if (spriteRenderer != null)
+        if (Renderer != null)
        {
-            spriteRenderer.color = dragColor;
-            spriteRenderer.sortingOrder = 10;
+            Renderer.material.color = dragColor;
+        }
+    }
+    void UpdateDrag(Vector3 screenPos)
+    {
+        Ray ray = mainCamera.ScreenPointToRay(screenPos);
+        float distance;
+        if (_dragPlane.Raycast(ray, out distance))
+        {
+            targetPosition = ray.GetPoint(distance);
        }
    }
-
    void EndDrag()
    {
+        Debug.Log("Ended dragging");
        isDragging = false;
+        rb.isKinematic = true;
        transform.localScale = originalScale;
-        if (spriteRenderer != null)
+        if (Renderer != null)
        {
-            spriteRenderer.color = normalColor;
-            spriteRenderer.sortingOrder = 0;
+            Renderer.material.color = normalColor;
        }
    }

    public void OnScored()
    {
+        Debug.Log("Object scored");
        if (hasBeenScored) return;
        hasBeenScored = true;
        isDragging = false;
@@ -123,8 +153,8 @@ public class DraggableObject : MonoBehaviour
            elapsed += Time.deltaTime;
            float t = elapsed / duration;
            transform.localScale = Vector3.Lerp(startScale, Vector3.zero, t);
-            if (spriteRenderer != null)
-                spriteRenderer.color = new Color(normalColor.r, normalColor.g, normalColor.b, 1f - t);
+            if (Renderer != null)
+                Renderer.material.color = new Color(normalColor.r, normalColor.g, normalColor.b, 1f - t);
            yield return null;
        }

--- a/Assets/Scripts/hod_veci_do_diry/Hole.cs
+++ b/Assets/Scripts/hod_veci_do_diry/Hole.cs
@@ -1,6 +1,7 @@
-using UnityEngine;
 using System.Collections;
+using UnityEngine;

+[RequireComponent(typeof(CapsuleCollider))]
 public class Hole : MonoBehaviour
 {
    [Header("Nastavení")]
@@ -10,13 +11,9 @@ public class Hole : MonoBehaviour
    [Tooltip("Síla vtahování itemu k díře")]
    public float pullForce = 4f;

-    [Header("Pohyb díry (volitelné)")]
-    public bool hasMovement = false;
-    public float moveSpeed = 2f;
-    public Vector2 moveRange = new Vector2(1.5f, 0f);

    [Header("Vizuál")]
-    public SpriteRenderer glowRenderer;
+    public Renderer glowRenderer;

    private Vector3 startPosition;
    private bool isGlowing = false;
@@ -35,27 +32,24 @@ public class Hole : MonoBehaviour

    void Update()
    {
-        if (hasMovement)
-        {
-            float x = startPosition.x + Mathf.Sin(Time.time * moveSpeed) * moveRange.x;
-            float y = startPosition.y + Mathf.Cos(Time.time * moveSpeed * 0.7f) * moveRange.y;
-            transform.position = new Vector3(x, y, transform.position.z);
-        }
+
    }

-    void OnTriggerStay2D(Collider2D other)
+    void OnTriggerStay(Collider other)
    {
+        Debug.Log($"Trigger stay with: {other.gameObject.name}");
        DraggableObject draggable = other.GetComponent<DraggableObject>();
        if (draggable == null) return;
-
-        float dist = Vector2.Distance(transform.position, other.transform.position);
+        Debug.Log($"Draggable object detected: {other.gameObject.name}");   
+        float dist = Vector3.Distance(transform.position, other.transform.position);


-        Rigidbody2D rb = other.GetComponent<Rigidbody2D>();
+        Rigidbody rb = other.GetComponent<Rigidbody>();
        if (rb != null)
        {
-            Vector2 dir = ((Vector2)transform.position - rb.position).normalized;
-            rb.AddForce(dir * pullForce * Time.fixedDeltaTime, ForceMode2D.Impulse);
+            Debug.Log($"Rigidbody detected: {other.gameObject.name}, distance: {dist}");
+            Vector3 dir = (transform.position - rb.position).normalized;
+            rb.AddForce(dir * pullForce * Time.fixedDeltaTime, ForceMode.Impulse);
        }


@@ -66,18 +60,21 @@ public class Hole : MonoBehaviour
        }
    }

-    void OnTriggerEnter2D(Collider2D other)
+    void OnTriggerEnter(Collider other)
    {
+        Debug.Log($"Collider entered: {other.gameObject.name}");
        if (other.GetComponent<DraggableObject>() != null) SetGlow(true);
    }

-    void OnTriggerExit2D(Collider2D other)
+    void OnTriggerExit(Collider other)
    {
+        Debug.Log($"Collider exited: {other.gameObject.name}");
        if (other.GetComponent<DraggableObject>() != null) SetGlow(false);
    }

    void SetGlow(bool active)
    {
+        Debug.Log($"SetGlow: {active}");
        isGlowing = active;
        if (glowRenderer == null) return;
        glowRenderer.enabled = active;
@@ -89,8 +86,8 @@ public class Hole : MonoBehaviour
        while (isGlowing && glowRenderer != null)
        {
            float t = Mathf.PingPong(Time.time * 3f, 1f);
-            Color c = glowRenderer.color;
-            glowRenderer.color = new Color(c.r, c.g, c.b, Mathf.Lerp(0.3f, 0.9f, t));
+            Color c = glowRenderer.sharedMaterial.color;
+            glowRenderer.sharedMaterial.color = new Color(c.r, c.g, c.b, Mathf.Lerp(0.3f, 0.9f, t));
            yield return null;
        }
    }
--- a/Assets/Scripts/hod_veci_do_diry/LevelManager.cs
+++ b/Assets/Scripts/hod_veci_do_diry/LevelManager.cs
@@ -1,7 +1,9 @@
+using System;
 using UnityEngine;
 using UnityEngine.Events;
+using GeoSus.Client;

-public class LevelManager : MonoBehaviour
+public class LevelManager : MonoBehaviour, ITask
 {
    public static LevelManager Instance;

@@ -14,11 +16,15 @@ public class LevelManager : MonoBehaviour

    private int scoredCount = 0;

-    void Awake()
-    {
-        if (Instance == null) Instance = this;
-        else Destroy(gameObject);
-    }
+    public string TaskID { get; set; }
+
+    public TaskType TaskType { get; set; }
+    public string TaskName { get; set; }
+
+    public Position TaskLocation { get; set; }
+
+    public bool IsCompleted { get; private set; } = false;
+    protected Action<ITask> OnCompleted;

    public void RegisterItem()
    {
@@ -38,4 +44,25 @@ public class LevelManager : MonoBehaviour

    public int GetScoredCount() => scoredCount;
    public int GetTotalCount() => itemsToScore;
+
+    public void Initialize(Action<ITask> onCompleted)
+    {
+        OnCompleted = onCompleted;
+
+        IsCompleted = false;
+        ResetCounter();
+    }
+
+    public void ExitTask(Action<ITask> onExit)
+    {
+        onExit?.Invoke(this);
+    }
+
+    public void Complete()
+    {
+        if (IsCompleted) return;
+
+        IsCompleted = true;
+        OnCompleted?.Invoke(this);
+    }
 }
--- a/Assets/Scripts/hod_veci_do_diry/ObjectSpawner.cs
+++ b/Assets/Scripts/hod_veci_do_diry/ObjectSpawner.cs
@@ -7,10 +7,11 @@ using System.Collections.Generic;
 public class ObjectSpawner : MonoBehaviour
 {
    public static ObjectSpawner Instance;
+    [SerializeField]
+    private List<GameObject> spawnedHoles = new List<GameObject>();

    [Header("Prefaby")]
    public GameObject[] objectPrefabs;
-    public GameObject holePrefab;

    [Header("Počty")]
    [Tooltip("Kolik předmětů spawnovat")]
@@ -28,12 +29,9 @@ public class ObjectSpawner : MonoBehaviour
    public float minY = -5f;
    public float maxY = 4f;

-    [Header("Rodiče pro přehlednost (volitelné)")]
-    public Transform objectParent;
-    public Transform holeParent;

    private List<GameObject> spawnedObjects = new List<GameObject>();
-    private List<GameObject> spawnedHoles = new List<GameObject>();
+    

    void Awake()
    {
@@ -57,41 +55,42 @@ public class ObjectSpawner : MonoBehaviour
            LevelManager.Instance.ResetCounter();
        }

-        SpawnHoles();
+        //SpawnHoles();
        SpawnObjects();
    }

-    void SpawnHoles()
-    {
-        for (int i = 0; i < holeCount; i++)
-        {
-            Vector2 pos = RandomPos(1f);
-            GameObject hole = Instantiate(holePrefab, pos, Quaternion.identity, holeParent);
+    //void SpawnHoles()
+    //{
+    //    for (int i = 0; i < holeCount; i++)
+    //    {
+    //        Vector2 pos = RandomPos(1f);
+    //        GameObject hole = Instantiate(holePrefab, pos, Quaternion.identity, holeParent);

-            Hole h = hole.GetComponent<Hole>();
-            if (h != null && holesMove)
-            {
-                h.hasMovement = true;
-                h.moveSpeed = holeMoveSpeed;
-                h.moveRange = new Vector2(Random.Range(0.8f, 1.8f), 0f);
-            }
+    //        Hole h = hole.GetComponent<Hole>();
+    //        if (h != null && holesMove)
+    //        {
+    //            h.hasMovement = true;
+    //            h.moveSpeed = holeMoveSpeed;
+    //            h.moveRange = new Vector2(Random.Range(0.8f, 1.8f), 0f);
+    //        }

-            spawnedHoles.Add(hole);
-        }
-    }
+    //        spawnedHoles.Add(hole);
+    //    }
+    //}

-    void SpawnObjects()
+    public void SpawnObjects()
    {
+        Debug.Log($"Spawning {objectCount} objects...");
        for (int i = 0; i < objectCount; i++)
        {
            GameObject prefab = objectPrefabs[Random.Range(0, objectPrefabs.Length)];
-            Vector2 pos = RandomPos(0.5f);
-            GameObject obj = Instantiate(prefab, pos, Quaternion.identity, objectParent);
+            Vector3 pos = RandomPos(0.5f);
+            GameObject obj = Instantiate(prefab, pos, Quaternion.identity);

            // Náhodná barva
-            SpriteRenderer sr = obj.GetComponent<SpriteRenderer>();
+            Renderer sr = obj.GetComponent<Renderer>();
            if (sr != null)
-                sr.color = Random.ColorHSV(0f, 1f, 0.7f, 1f, 0.9f, 1f);
+                sr.sharedMaterial.color = Random.ColorHSV(0f, 1f, 0.7f, 1f, 0.9f, 1f);

            spawnedObjects.Add(obj);
        }
@@ -100,14 +99,17 @@ public class ObjectSpawner : MonoBehaviour
    public void Clear()
    {
        foreach (var o in spawnedObjects) if (o != null) Destroy(o);
-        foreach (var h in spawnedHoles) if (h != null) Destroy(h);
-        spawnedObjects.Clear();
+        //foreach (var h in spawnedHoles) if (h != null) Destroy(h);
+        //spawnedObjects.Clear();
        spawnedHoles.Clear();
    }

-    Vector2 RandomPos(float margin) =>
-        new Vector2(
+    Vector3 RandomPos(float margin)
+    {
+        return new Vector3(
            Random.Range(minX + margin, maxX - margin),
-            Random.Range(minY + margin, maxY - margin)
+            Random.Range(minY + margin, maxY - margin),
+            0.5f
        );
    }
+}
--- a/Assets/Scripts/insert
+++ b/Assets/Scripts/insert
@@ -3,6 +3,7 @@ using UnityEngine;
 using UnityEngine.EventSystems;
 using UnityEngine.SceneManagement;
 using UnityEngine.UI;
+using GeoSus.Client;

 public class DraggableKey : MonoBehaviour,
    IBeginDragHandler, IDragHandler, IEndDragHandler, ITask
@@ -27,7 +28,7 @@ public class DraggableKey : MonoBehaviour,
    public string TaskID { get; set; }
    public TaskType TaskType { get; set; }
    public string TaskName { get; set; }
-    public (double, double) TaskLocation { get; set; }
+    public Position TaskLocation { get; set; }
    public bool IsCompleted { get; private set; }

    private Action<ITask> _onCompleted;
--- a/Assets/Scripts/kabely/kabely.cs
+++ b/Assets/Scripts/kabely/kabely.cs
@@ -3,6 +3,7 @@ using System.Collections;
 using UnityEngine;
 using UnityEngine.UI;
 using UnityEngine.SceneManagement;
+using GeoSus.Client;

 public class CableMiniGame : MonoBehaviour, ITask
 {
@@ -21,7 +22,7 @@ public class CableMiniGame : MonoBehaviour, ITask
    public string TaskID { get; set; }
    public TaskType TaskType { get; set; }
    public string TaskName { get; set; }
-    public (double, double) TaskLocation { get; set; }
+    public Position TaskLocation { get; set; }
    public bool IsCompleted { get; private set; }

    private Action<ITask> _onCompleted;
--- a/Assets/Scripts/satelity/WindController.cs
+++ b/Assets/Scripts/satelity/WindController.cs
@@ -2,7 +2,7 @@ using System;
 using UnityEngine;
 using UnityEngine.EventSystems;
 using UnityEngine.SceneManagement;
-using UnityEngine.UI;
+using GeoSus.Client;

 public class WindController : MonoBehaviour, ITask
 {
@@ -24,7 +24,7 @@ public class WindController : MonoBehaviour, ITask
    public string TaskID { get; set; }
    public TaskType TaskType { get; set; }
    public string TaskName { get; set; }
-    public (double, double) TaskLocation { get; set; }
+    public Position TaskLocation { get; set; }
    public bool IsCompleted { get; private set; }

    void Start()
--- a/Assets/minigame/Materials/brick_wall_08_1k.blend/Materials/brick_wall_08_diff_1k.mat
+++ b/Assets/minigame/Materials/brick_wall_08_1k.blend/Materials/brick_wall_08_diff_1k.mat
@@ -78,7 +78,7 @@ Material:
    - _UVSec: 0
    - _ZWrite: 1
    m_Colors:
-    - _Color: {r: 1, g: 1, b: 1, a: 1}
+    - _Color: {r: 0.12311344, g: 0.96881944, b: 0.7101699, a: 1}
    - _EmissionColor: {r: 0, g: 0, b: 0, a: 1}
  m_BuildTextureStacks: []
  m_AllowLocking: 1
--- a/Assets/minigame/Sphere.prefab
+++ b/Assets/minigame/Sphere.prefab
@@ -0,0 +1,161 @@
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