Added Start game countdown UI

Server updates the timers and notifies the clients if the game starts.
Added clientmanager that requests for current state of gamemanager incase the player joins mid loading

Assets/_Game/Code/Managers/ClientManager.cs

+using Unity.Netcode;
+using UnityEngine;
+
+public class ClientManager : NetworkBehaviour
+{
+    private void Start()
+    {
+        if (IsClient && !IsServer)
+        {
+            RequestTimerState();
+        }
+    }
+
+    private void RequestTimerState()
+    {
+        if (NetworkManager.Singleton.IsConnectedClient)
+        {
+            GameManager gameManager = FindObjectOfType<GameManager>();
+            if (gameManager != null)
+            {
+                gameManager.RequestTimerStateServerRpc();
+            }
+            else
+            {
+                Debug.LogError("GameManager not found.");
+            }
+        }
+    }
+}
\ No newline at end of file

Assets/_Game/Code/Managers/ClientManager.cs.meta

+fileFormatVersion: 2
+guid: 8d2e44d8b8cee4f4ca4cbc5753b50feb
\ No newline at end of file

Assets/_Game/Code/Managers/GameManager.cs

+using TMPro;
+using Unity.Netcode;
+using UnityEngine;
+
+
+public class GameManager : NetworkBehaviour
+{
+    private TextMeshProUGUI _timerText;
+    private float _initialTimer = 10f;
+    private float _startGameTimer = 10f;
+    private bool _initialTimerActive = true;
+    private bool _startGameTimerActive;
+
+    private void Start()
+    {
+        _timerText = GameObject.Find("Start_Game").GetComponent<TextMeshProUGUI>();
+        if (_timerText == null)
+        {
+            Debug.LogError("TextMeshPro component not found on Start Game GameObject!");
+            return;
+        }
+
+        if (IsServer)
+        {
+            _initialTimerActive = true;
+        }
+    }
+
+    private void Update()
+    {
+        if (!IsServer) return;
+
+        if (_initialTimerActive)
+        {
+            _initialTimer -= Time.deltaTime;
+            if (_initialTimer <= 0)
+            {
+                _initialTimerActive = false;
+                _startGameTimerActive = true;
+                EnableTimerTextClientRpc(true);
+            }
+        }
+
+        if (_startGameTimerActive)
+        {
+            _startGameTimer -= Time.deltaTime;
+            if (_startGameTimer > 0)
+            {
+                UpdateTimerClientRpc(_startGameTimer);
+            }
+            else
+            {
+                _startGameTimerActive = false;
+                UpdateTimerClientRpc(0);
+                EnableTimerTextClientRpc(false);
+                TimersEndedServerRpc();
+            }
+        }
+    }
+
+    [ClientRpc]
+    private void UpdateTimerClientRpc(float timeRemaining)
+    {
+        if (_timerText != null)
+        {
+            _timerText.text = $"Starting Game in {Mathf.Ceil(timeRemaining)}";
+        }
+    }
+
+    [ClientRpc]
+    private void EnableTimerTextClientRpc(bool state)
+    {
+        if (_timerText != null)
+        {
+            _timerText.enabled = state;
+        }
+    }
+
+    [ServerRpc]
+    private void TimersEndedServerRpc()
+    {
+        // Logic to handle when timers have ended
+        Debug.Log("Timers have ended.");
+    }
+
+    [ServerRpc(RequireOwnership = false)]
+    public void RequestTimerStateServerRpc(ServerRpcParams rpcParams = default)
+    {
+        if (_initialTimerActive)
+        {
+            RespondTimerStateClientRpc(_initialTimer, true, rpcParams.Receive.SenderClientId);
+        }
+        else if (_startGameTimerActive)
+        {
+            RespondTimerStateClientRpc(_startGameTimer, true, rpcParams.Receive.SenderClientId);
+        }
+        else
+        {
+            RespondTimerStateClientRpc(0, false, rpcParams.Receive.SenderClientId);
+        }
+    }
+
+    [ClientRpc]
+    private void RespondTimerStateClientRpc(float timeRemaining, bool timerActive, ulong clientId)
+    {
+        if (NetworkManager.Singleton.LocalClientId == clientId)
+        {
+            _timerText.enabled = timerActive;
+            _timerText.text = $"Starting Game in {Mathf.Ceil(timeRemaining)}";
+        }
+    }
+}
\ No newline at end of file

Assets/_Game/Code/Managers/GameManager.cs.meta

+fileFormatVersion: 2
+guid: 9c71552cd67eabf489fab4fe0d80a0f9
\ No newline at end of file

Assets/_Game/Prefabs/Player/Player.prefab

@@ -137,6 +137,7 @@ GameObject:
   - component: {fileID: 5977278119335250016}
   - component: {fileID: -5431455483652452085}
   - component: {fileID: 6323309021802201727}
+  - component: {fileID: 911307299827299822}
   m_Layer: 0
   m_Name: Player
   m_TagString: Untagged
@@ -332,6 +333,19 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: c5e28a848c1e15846a459b682cc64164, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
+--- !u!114 &911307299827299822
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7039287367920326276}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 8d2e44d8b8cee4f4ca4cbc5753b50feb, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  ShowTopMostFoldoutHeaderGroup: 1
 --- !u!1 &9074470363064250575
 GameObject:
   m_ObjectHideFlags: 0

Assets/_Game/Scenes/SC.unity

@@ -724,6 +724,7 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children:
   - {fileID: 1504492730}
+  - {fileID: 1877249104}
   m_Father: {fileID: 0}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
@@ -963,6 +964,77 @@ MeshCollider:
   m_Convex: 0
   m_CookingOptions: 30
   m_Mesh: {fileID: 4040528778396390922, guid: 2abc46d65f2e2d7439c7689b3c2142c4, type: 3}
+--- !u!1 &405720566
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 405720569}
+  - component: {fileID: 405720567}
+  - component: {fileID: 405720568}
+  m_Layer: 0
+  m_Name: Managers
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!114 &405720567
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 405720566}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: d5a57f767e5e46a458fc5d3c628d0cbb, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  GlobalObjectIdHash: 1158095512
+  InScenePlacedSourceGlobalObjectIdHash: 0
+  DeferredDespawnTick: 0
+  Ownership: 1
+  AlwaysReplicateAsRoot: 0
+  SynchronizeTransform: 1
+  ActiveSceneSynchronization: 0
+  SceneMigrationSynchronization: 1
+  SpawnWithObservers: 1
+  DontDestroyWithOwner: 0
+  AutoObjectParentSync: 1
+  SyncOwnerTransformWhenParented: 1
+  AllowOwnerToParent: 0
+--- !u!114 &405720568
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 405720566}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 9c71552cd67eabf489fab4fe0d80a0f9, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  ShowTopMostFoldoutHeaderGroup: 1
+--- !u!4 &405720569
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 405720566}
+  serializedVersion: 2
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 1.9441636, y: -0.5603608, z: -1.2710799}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1001 &458110279
 PrefabInstance:
   m_ObjectHideFlags: 0
@@ -3749,6 +3821,142 @@ MeshCollider:
   m_Convex: 0
   m_CookingOptions: 30
   m_Mesh: {fileID: -3275770135416983120, guid: ceca936363ca6f446a07531901199ca9, type: 3}
+--- !u!1 &1877249103
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1877249104}
+  - component: {fileID: 1877249106}
+  - component: {fileID: 1877249105}
+  m_Layer: 5
+  m_Name: Start_Game
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!224 &1877249104
+RectTransform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1877249103}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 303522006}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+  m_AnchorMin: {x: 0.5, y: 0.5}
+  m_AnchorMax: {x: 0.5, y: 0.5}
+  m_AnchoredPosition: {x: 0, y: 0}
+  m_SizeDelta: {x: 262.3946, y: 108.8129}
+  m_Pivot: {x: 0.5, y: 0.5}
+--- !u!114 &1877249105
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1877249103}
+  m_Enabled: 0
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: f4688fdb7df04437aeb418b961361dc5, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  m_Material: {fileID: 0}
+  m_Color: {r: 1, g: 1, b: 1, a: 1}
+  m_RaycastTarget: 1
+  m_RaycastPadding: {x: 0, y: 0, z: 0, w: 0}
+  m_Maskable: 1
+  m_OnCullStateChanged:
+    m_PersistentCalls:
+      m_Calls: []
+  m_text: Start Game
+  m_isRightToLeft: 0
+  m_fontAsset: {fileID: 11400000, guid: 8f586378b4e144a9851e7b34d9b748ee, type: 2}
+  m_sharedMaterial: {fileID: 2180264, guid: 8f586378b4e144a9851e7b34d9b748ee, type: 2}
+  m_fontSharedMaterials: []
+  m_fontMaterial: {fileID: 0}
+  m_fontMaterials: []
+  m_fontColor32:
+    serializedVersion: 2
+    rgba: 1166126335
+  m_fontColor: {r: 1, g: 0.6733512, b: 0.504717, a: 0.27058825}
+  m_enableVertexGradient: 0
+  m_colorMode: 3
+  m_fontColorGradient:
+    topLeft: {r: 1, g: 1, b: 1, a: 1}
+    topRight: {r: 1, g: 1, b: 1, a: 1}
+    bottomLeft: {r: 1, g: 1, b: 1, a: 1}
+    bottomRight: {r: 1, g: 1, b: 1, a: 1}
+  m_fontColorGradientPreset: {fileID: 0}
+  m_spriteAsset: {fileID: 0}
+  m_tintAllSprites: 0
+  m_StyleSheet: {fileID: 0}
+  m_TextStyleHashCode: -1183493901
+  m_overrideHtmlColors: 0
+  m_faceColor:
+    serializedVersion: 2
+    rgba: 4294967295
+  m_fontSize: 50.3
+  m_fontSizeBase: 50.3
+  m_fontWeight: 400
+  m_enableAutoSizing: 0
+  m_fontSizeMin: 18
+  m_fontSizeMax: 72
+  m_fontStyle: 0
+  m_HorizontalAlignment: 2
+  m_VerticalAlignment: 512
+  m_textAlignment: 65535
+  m_characterSpacing: 0
+  m_wordSpacing: 0
+  m_lineSpacing: 0
+  m_lineSpacingMax: 0
+  m_paragraphSpacing: 0
+  m_charWidthMaxAdj: 0
+  m_TextWrappingMode: 1
+  m_wordWrappingRatios: 0.4
+  m_overflowMode: 0
+  m_linkedTextComponent: {fileID: 0}
+  parentLinkedComponent: {fileID: 0}
+  m_enableKerning: 0
+  m_ActiveFontFeatures: 6e72656b
+  m_enableExtraPadding: 0
+  checkPaddingRequired: 0
+  m_isRichText: 1
+  m_EmojiFallbackSupport: 1
+  m_parseCtrlCharacters: 1
+  m_isOrthographic: 1
+  m_isCullingEnabled: 0
+  m_horizontalMapping: 0
+  m_verticalMapping: 0
+  m_uvLineOffset: 0
+  m_geometrySortingOrder: 0
+  m_IsTextObjectScaleStatic: 0
+  m_VertexBufferAutoSizeReduction: 0
+  m_useMaxVisibleDescender: 1
+  m_pageToDisplay: 1
+  m_margin: {x: 0, y: 0, z: 0, w: 0}
+  m_isUsingLegacyAnimationComponent: 0
+  m_isVolumetricText: 0
+  m_hasFontAssetChanged: 0
+  m_baseMaterial: {fileID: 0}
+  m_maskOffset: {x: 0, y: 0, z: 0, w: 0}
+--- !u!222 &1877249106
+CanvasRenderer:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1877249103}
+  m_CullTransparentMesh: 1
 --- !u!1 &1883582478 stripped
 GameObject:
   m_CorrespondingSourceObject: {fileID: 919132149155446097, guid: 87d9e8aa89dc79e47bbc07b25704225c, type: 3}
@@ -4456,3 +4664,4 @@ SceneRoots:
   - {fileID: 1687222685}
   - {fileID: 303522006}
   - {fileID: 865924118}
+  - {fileID: 405720569}