Fixes Some performance headaches in the mcq game

My project/Assets/Resources/PerformanceTestRunInfo.json

+{"TestSuite":"","Date":0,"Player":{"Development":false,"ScreenWidth":0,"ScreenHeight":0,"ScreenRefreshRate":0,"Fullscreen":false,"Vsync":0,"AntiAliasing":0,"Batchmode":false,"RenderThreadingMode":"MultiThreaded","MtRendering":false,"GraphicsJobs":false,"GpuSkinning":true,"Platform":"","ColorSpace":"","AnisotropicFiltering":"","BlendWeights":"","GraphicsApi":"","ScriptingBackend":"IL2CPP","AndroidTargetSdkVersion":"AndroidApiLevelAuto","AndroidBuildSystem":"Gradle","BuildTarget":"Android","StereoRenderingPath":"MultiPass"},"Hardware":{"OperatingSystem":"","DeviceModel":"","DeviceName":"","ProcessorType":"","ProcessorCount":0,"GraphicsDeviceName":"","SystemMemorySizeMB":0},"Editor":{"Version":"6000.3.9f1","Branch":"6000.3/staging","Changeset":"7a9955a4f2fa","Date":1770746648},"Dependencies":["com.cysharp.unitask@2.5.10","com.github-glitchenzo.nugetforunity@4.5.0","com.unity.2d.sprite@1.0.0","com.unity.ai.navigation@2.0.11","com.unity.cinemachine@3.1.6","com.unity.collab-proxy@2.11.4","com.unity.ide.rider@3.0.39","com.unity.ide.visualstudio@2.0.26","com.unity.inputsystem@1.19.0","com.unity.multiplayer.center@1.0.1","com.unity.nuget.newtonsoft-json@3.2.2","com.unity.postprocessing@3.5.4","com.unity.recorder@5.1.6","com.unity.render-pipelines.universal@17.3.0","com.unity.shadergraph@17.3.0","com.unity.test-framework@1.6.0","com.unity.timeline@1.8.11","com.unity.ugui@2.0.0","com.unity.visualeffectgraph@17.3.0","com.unity.visualscripting@1.9.11","media.lightside.unitext@1.0.0","com.unity.modules.accessibility@1.0.0","com.unity.modules.adaptiveperformance@1.0.0","com.unity.modules.ai@1.0.0","com.unity.modules.androidjni@1.0.0","com.unity.modules.animation@1.0.0","com.unity.modules.assetbundle@1.0.0","com.unity.modules.audio@1.0.0","com.unity.modules.cloth@1.0.0","com.unity.modules.director@1.0.0","com.unity.modules.imageconversion@1.0.0","com.unity.modules.imgui@1.0.0","com.unity.modules.jsonserialize@1.0.0","com.unity.modules.particlesystem@1.0.0","com.unity.modules.physics@1.0.0","com.unity.modules.physics2d@1.0.0","com.unity.modules.screencapture@1.0.0","com.unity.modules.terrain@1.0.0","com.unity.modules.terrainphysics@1.0.0","com.unity.modules.tilemap@1.0.0","com.unity.modules.ui@1.0.0","com.unity.modules.uielements@1.0.0","com.unity.modules.umbra@1.0.0","com.unity.modules.unityanalytics@1.0.0","com.unity.modules.unitywebrequest@1.0.0","com.unity.modules.unitywebrequestassetbundle@1.0.0","com.unity.modules.unitywebrequestaudio@1.0.0","com.unity.modules.unitywebrequesttexture@1.0.0","com.unity.modules.unitywebrequestwww@1.0.0","com.unity.modules.vectorgraphics@1.0.0","com.unity.modules.vehicles@1.0.0","com.unity.modules.video@1.0.0","com.unity.modules.vr@1.0.0","com.unity.modules.wind@1.0.0","com.unity.modules.xr@1.0.0","com.unity.modules.subsystems@1.0.0","com.unity.modules.hierarchycore@1.0.0","com.unity.render-pipelines.core@17.3.0","com.unity.ext.nunit@2.0.5","com.unity.searcher@4.9.4","com.unity.render-pipelines.universal-config@17.0.3","com.unity.collections@2.6.2","com.unity.bindings.openimageio@1.0.2","com.unity.splines@2.8.2","com.unity.burst@1.8.28","com.unity.mathematics@1.3.3","com.unity.nuget.mono-cecil@1.11.6","com.unity.test-framework.performance@3.2.0","com.unity.settings-manager@2.1.1"],"Results":[]}
\ No newline at end of file

My project/Assets/Resources/PerformanceTestRunSettings.json

+{"MeasurementCount":-1}
\ No newline at end of file

My project/Assets/ScienceStreet/MCQ/Scripts/McqDemoBuilder.cs

 
 using System.Collections;
+using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.EventSystems;
 using UnityEngine.Events;
@@ -134,36 +135,70 @@ namespace com.al_arcade.mcq
             }
 
 
+            // Combined dashes into a single mesh (100 objects → 1)
+            {
+                var tempCube = GameObject.CreatePrimitive(PrimitiveType.Cube);
+                var cubeMesh = tempCube.GetComponent<MeshFilter>().sharedMesh;
+                Destroy(tempCube);
+
+                var combines = new List<CombineInstance>();
                 for (float z = 0; z < 400; z += 4)
                 {
-                var dash = GameObject.CreatePrimitive(PrimitiveType.Cube);
-                dash.name = "Dash";
-                dash.transform.position = new Vector3(0, 0.01f, z);
-                dash.transform.localScale = new Vector3(0.05f, 0.01f, 2f);
-                Destroy(dash.GetComponent<Collider>());
-                dash.GetComponent<Renderer>().material = new Material(shader)
+                    combines.Add(new CombineInstance
+                    {
+                        mesh = cubeMesh,
+                        transform = Matrix4x4.TRS(
+                            new Vector3(0, 0.01f, z),
+                            Quaternion.identity,
+                            new Vector3(0.05f, 0.01f, 2f))
+                    });
+                }
+
+                var dashObj = new GameObject("RoadDashes");
+                var mf = dashObj.AddComponent<MeshFilter>();
+                var mr = dashObj.AddComponent<MeshRenderer>();
+                var combined = new Mesh();
+                combined.CombineMeshes(combines.ToArray(), true, true);
+                mf.mesh = combined;
+                mr.material = new Material(shader)
                 { color = SSColorPalette.WithAlpha(Color.white, 0.2f) };
             }
 
 
+            // Combined side blocks into a single mesh (40 objects → 1)
+            {
+                var tempCube = GameObject.CreatePrimitive(PrimitiveType.Cube);
+                var cubeMesh = tempCube.GetComponent<MeshFilter>().sharedMesh;
+                Destroy(tempCube);
+
+                var combines = new List<CombineInstance>();
                 for (int side = -1; side <= 1; side += 2)
                 {
                     for (float z = 0; z < 400; z += 20)
                     {
-                    var block = GameObject.CreatePrimitive(PrimitiveType.Cube);
-                    block.name = "SideBlock";
                         float h = Random.Range(2f, 5f);
-                    block.transform.position = new Vector3(side * 12f, h / 2f, z);
-                    block.transform.localScale = new Vector3(
-                        Random.Range(2f, 4f), h, Random.Range(3f, 8f));
-                    Destroy(block.GetComponent<Collider>());
-                    var c = Color.Lerp(SSColorPalette.Primary,
-                        SSColorPalette.PrimaryLight, Random.value);
-                    block.GetComponent<Renderer>().material = new Material(shader)
-                    { color = SSColorPalette.WithAlpha(c, 0.4f) };
+                        combines.Add(new CombineInstance
+                        {
+                            mesh = cubeMesh,
+                            transform = Matrix4x4.TRS(
+                                new Vector3(side * 12f, h / 2f, z),
+                                Quaternion.identity,
+                                new Vector3(Random.Range(2f, 4f), h, Random.Range(3f, 8f)))
+                        });
                     }
                 }
 
+                var blocksObj = new GameObject("SideBlocks");
+                var mf = blocksObj.AddComponent<MeshFilter>();
+                var mr = blocksObj.AddComponent<MeshRenderer>();
+                var combined = new Mesh();
+                combined.CombineMeshes(combines.ToArray(), true, true);
+                mf.mesh = combined;
+                var midColor = Color.Lerp(SSColorPalette.Primary, SSColorPalette.PrimaryLight, 0.5f);
+                mr.material = new Material(shader)
+                { color = SSColorPalette.WithAlpha(midColor, 0.4f) };
+            }
+
 
             var horizon = GameObject.CreatePrimitive(PrimitiveType.Cube);
             horizon.name = "Horizon";

My project/Assets/ScienceStreet/MCQ/Scripts/McqGameManager.cs

@@ -50,6 +50,10 @@ namespace com.al_arcade.mcq
         private Camera _mainCamera;
         private bool _isTicking;
 
+        // Gate object pool — reuse instead of Instantiate/Destroy per question
+        private List<McqGateController> _gatePool = new();
+        private const int GatePoolSize = 6;
+
         // ✅ NEW: CS-style progress counter
         // goes +1 on correct, -1 on wrong, clamped to [0, pointsToWin]
         private int _deltaChangeInSize;
@@ -176,6 +180,7 @@ namespace com.al_arcade.mcq
         // ─── BeginGameplay ───────────────────────────────────────────────────
         protected override void BeginGameplay()
         {
+            InitGatePool();
             _currentIndex = _score = _streak = _correctCount = _wrongCount = 0;
             _bestStreak = 0;
 
@@ -327,7 +332,7 @@ namespace com.al_arcade.mcq
                     DOTween.Kill(gate.transform);
                     gate.transform.DOScale(Vector3.zero, 0.3f)
                         .SetEase(Ease.InBack)
-                        .OnComplete(() => { if (gate != null) Destroy(gate.gameObject); });
+                        .OnComplete(() => { if (gate != null) gate.Recycle(); });
                 }
             }
             _activeGates.Clear();
@@ -455,12 +460,82 @@ namespace com.al_arcade.mcq
                 if (g != null)
                 {
                     DOTween.Kill(g.transform);
-                    Destroy(g.gameObject);
+                    g.Recycle();
                 }
             }
             _activeGates.Clear();
         }
 
+        // ─── Gate Pool ──────────────────────────────────────────────────────
+        private void InitGatePool()
+        {
+            if (_gatePool.Count > 0) return;
+
+            GameObject prefab = prefabBuilder != null ? prefabBuilder.GetGatePrefab() : null;
+
+            for (int i = 0; i < GatePoolSize; i++)
+            {
+                GameObject go;
+                McqGateController gate;
+
+                if (prefab == null)
+                {
+                    go = new GameObject($"Gate_Pool_{i}");
+                    gate = go.AddComponent<McqGateController>();
+                }
+                else
+                {
+                    go = Instantiate(prefab);
+                    gate = go.GetComponent<McqGateController>();
+                }
+
+                if (gateParent != null) go.transform.SetParent(gateParent);
+                go.SetActive(false);
+                _gatePool.Add(gate);
+            }
+        }
+
+        private McqGateController GetGateFromPool(Vector3 position, int index,
+            string answerText, bool isCorrect)
+        {
+            McqGateController gate = null;
+
+            for (int i = 0; i < _gatePool.Count; i++)
+            {
+                if (!_gatePool[i].gameObject.activeSelf)
+                {
+                    gate = _gatePool[i];
+                    break;
+                }
+            }
+
+            // Pool exhausted — expand
+            if (gate == null)
+            {
+                GameObject prefab = prefabBuilder != null ? prefabBuilder.GetGatePrefab() : null;
+                GameObject go;
+
+                if (prefab == null)
+                {
+                    go = new GameObject($"Gate_Pool_{_gatePool.Count}");
+                    gate = go.AddComponent<McqGateController>();
+                }
+                else
+                {
+                    go = Instantiate(prefab);
+                    gate = go.GetComponent<McqGateController>();
+                }
+
+                if (gateParent != null) go.transform.SetParent(gateParent);
+                _gatePool.Add(gate);
+            }
+
+            gate.transform.position = position;
+            gate.gameObject.SetActive(true);
+            gate.Setup(index, answerText, isCorrect);
+            return gate;
+        }
+
         // ─── Gate Spawning ───────────────────────────────────────────────────
         private void SpawnGates(McqQuestion question)
         {
@@ -481,7 +556,7 @@ namespace com.al_arcade.mcq
             for (int i = 0; i < answers.Length; i++)
             {
                 Vector3 gatePos = basePos + Vector3.right * (startX + i * gateSpacing);
-                var gate = CreateGate(gatePos, i, answers[i], i == _correctGateIndex);
+                var gate = GetGateFromPool(gatePos, i, answers[i], i == _correctGateIndex);
                 _activeGates.Add(gate);
 
                 gate.transform.DOScale(Vector3.one, 0.5f)
@@ -491,34 +566,6 @@ namespace com.al_arcade.mcq
             }
         }
 
-        private McqGateController CreateGate(Vector3 position, int index,
-            string answerText, bool isCorrect)
-        {
-            GameObject gatePrefab = prefabBuilder != null ? prefabBuilder.GetGatePrefab() : null;
-
-            GameObject go;
-            if (gatePrefab == null)
-            {
-                go = new GameObject($"Gate_{index}");
-                go.transform.position = position;
-            }
-            else
-            {
-                go = Instantiate(gatePrefab, position, Quaternion.identity);
-            }
-
-            if (gateParent != null) go.transform.SetParent(gateParent);
-
-            McqGateController gate;
-            if (gatePrefab == null)
-                gate = go.AddComponent<McqGateController>();
-            else
-                gate = go.GetComponent<McqGateController>();
-
-            gate.Setup(index, answerText, isCorrect);
-            return gate;
-        }
-
         // ─── Feedback ────────────────────────────────────────────────────────
         private void ShowCorrectFeedback(int points)
         {

My project/Assets/ScienceStreet/MCQ/Scripts/McqGateController.cs

@@ -24,6 +24,7 @@ namespace com.al_arcade.mcq
         private MaterialPropertyBlock _mpb;
         private Sequence _idleAnim;
         private Sequence _glowAnim;
+        private bool _built;
 
         private const float GateWidth = 2.5f;
         private const float GateHeight = 3.5f;
@@ -48,12 +49,33 @@ namespace com.al_arcade.mcq
             IsCorrect = correct;
             WasEntered = false;
 
+            EnsureMaterial();
+
+            if (_built)
+                UpdateContent();
+            else
+            {
                 BuildVisuals();
+                _built = true;
+            }
+
+            if (_mpb != null)
+                SetPanelColor(SSColorPalette.GateDefault);
+
             StartIdleAnimation();
         }
 
         public void Start()
         {
+            EnsureMaterial();
+            if (_mpb != null)
+                SetPanelColor(SSColorPalette.GateDefault);
+        }
+
+        private void EnsureMaterial()
+        {
+            if (_panelRenderer == null || _mpb != null) return;
+
             if (_sharedGateMaterial == null)
             {
                 _sharedGateMaterial = new Material(_panelRenderer.material.shader);
@@ -61,9 +83,7 @@ namespace com.al_arcade.mcq
             }
             _panelRenderer.sharedMaterial = _sharedGateMaterial;
             _panelMaterial = _sharedGateMaterial;
-
             _mpb = new MaterialPropertyBlock();
-            SetPanelColor(SSColorPalette.GateDefault);
         }
 
         private void SetPanelColor(Color color)
@@ -73,6 +93,30 @@ namespace com.al_arcade.mcq
             _panelRenderer.SetPropertyBlock(_mpb);
         }
 
+        private void UpdateContent()
+        {
+            if (_answerText != null)
+            {
+                _answerText.Text = AnswerText;
+                _answerTextShadow.Text = AnswerText;
+            }
+            else if (_label != null)
+            {
+                _label.arabicText = AnswerText;
+            }
+        }
+
+        public void Recycle()
+        {
+            KillAllTweens();
+            WasEntered = false;
+            onPlayerEnter = null;
+            transform.localScale = Vector3.one;
+            if (_mpb != null)
+                SetPanelColor(SSColorPalette.GateDefault);
+            gameObject.SetActive(false);
+        }
+
         private void BuildVisuals()
         {
             var shader = GetShader();