diff --git a/posts/studycase4.md b/posts/studycase4.md
index 93c7e6a..a09ec63 100644
--- a/posts/studycase4.md
+++ b/posts/studycase4.md
@@ -1,15 +1,15 @@
 ---
-title: StudyCase3
-date: 2025-11-27 16:36:05
+title: studycase4
+date: 2025-11-30 12:40:05
 tags: [studycase, unity]
 pinned: true
 head:
   - - meta
     - name: description
-      content: vitepress-theme-bluearchive StudyCase3
+      content: vitepress-theme-bluearchive studycase4
   - - meta
     - name: keywords
-      content: vitepress theme bluearchive StudyCase3
+      content: vitepress theme bluearchive studycase4
 ---
 
 # 虚拟摇杆
@@ -25,106 +25,81 @@ head:
 - **Visual Studio 2022**
 
 ## 2.光芒汇聚之所-章节目标
-- **射线检测拾取物体**
-- **鼠标点击拾取物体**
+- **虚拟摇杆和按钮**
+- **In game Debug**
+- **打包APK**
 
 ## 3.光流影卷-演示视频
-<video id="vdMain" controls muted poster="/video/studycase3/演示视频.png" playsinline>
-  <source id="vSource" src="/video/studycase3/演示视频.mp4" type="video/mp4" />
+<video id="vdMain" controls muted poster="/video/studycase4/演示视频.png" playsinline>
+  <source id="vSource" src="/video/studycase4/演示视频.mp4" type="video/mp4" />
 </video>
 
 ## 4.初始祭坛-前置准备
-### 导入[资源](/resources/studycase3/case3.zip)(天空球，描边，道具模型)
+### 导入[资源](/resources/studycase4/case4.zip)(摇杆图标、Debug工具)  
+
+<img src="/image/studycase4/导入.png" data-fancybox="gallery"/>  
+
+### 导入InputSystem的OnScreen示例  
+
+<img src="/image/studycase4/onscreen.png" data-fancybox="gallery"/>  
 
 ## 5.勇者行迹录-章节任务
-### 创建StudyCase3
-- 复制场景和脚本改名为StudyCase3  
-- 修改控制器的命名空间  
+### 创建studycase4
+- 复制场景和脚本改名为studycase4  
+- 修改控制器和道具的命名空间  
 
-### 道具
-- 把导入的道具模型放到场景中  
+### IngameDebugConsole
+- 把IngameDebugConsole预制体拖入场景 
 
-<img src="/image/studycase3/把导入的道具模型放到场景中.png" data-fancybox="gallery"/>  
+<img src="/image/studycase4/debug.png" data-fancybox="gallery"/>  
 
-- 新建道具层级    
+- 全选mobile-controls-1下的Texture    
 
-<img src="/image/studycase3/新建Layer.png" data-fancybox="gallery"/>  
+<img src="/image/studycase4/全选mobile-controls-1下的Texture.png" data-fancybox="gallery"/>  
 
-- 在`Assets\Scripts\StudyCase3`下创建道具脚本`Item.cs`  
-```csharp
-using UnityEngine;
+- 切换到sprite(2d and ui)    
 
-namespace StudyCase3
-{
-    public class Item : MonoBehaviour
-    {
-        Outline outline;
-        bool pick;
-        ThirdCharacterController player;
-        private void Awake()
-        {
-            player = FindAnyObjectByType<ThirdCharacterController>();
-            if (outline == null)
-                outline = gameObject.AddComponent<Outline>();
-            else
-                outline = GetComponent<Outline>();
-            outline.enabled = false;
-            outline.OutlineMode = Outline.Mode.OutlineVisible;
-            outline.OutlineColor = new Color(0, 1, 1);
-            outline.OutlineWidth = 10f;
-            gameObject.layer = LayerMask.NameToLayer("Item");
-        }
-        public void Select()
-        {
-            if(!pick)
-                outline.enabled = true;
-        }
-        public void UnSelect()
-        {
-            if (!pick)
-                outline.enabled = false;
-        }
-        public void PickUp(Transform root)
-        {
-            if (pick) return;
-            pick = true;
-            transform.SetParent(root);
-            outline.OutlineWidth = 2f;
-            gameObject.layer = LayerMask.NameToLayer("Default");
-            player.SetItems();
-        }
-        private void OnMouseEnter()
-        {
-            if (player.pickMode == PickMode.Mouse)
-                Select();
-        }
-        private void OnMouseExit()
-        {
-            if (player.pickMode == PickMode.Mouse)
-                UnSelect();
-        }
-        private void OnMouseDown()
-        {
-            if (player.pickMode == PickMode.Mouse)
-                PickUp(player.itemRoot);
-        }
-    }
-}
-```
-- 道具挂载脚本    
+<img src="/image/studycase4/切换到sprite.png" data-fancybox="gallery"/>  
 
-<img src="/image/studycase3/道具挂载脚本.png" data-fancybox="gallery"/>  
+- 创建一个canvas，再创建一个image，命名为leftBg，sprite使用joystick_circle_pad_a，设置大小位置和锚点    
 
-- 创建Pick输入事件，绑定按键F    
+<img src="/image/studycase4/创建leftBg.png" data-fancybox="gallery"/>  
 
-<img src="/image/studycase3/创建Pick输入事件，绑定F.png" data-fancybox="gallery"/>  
+- 创建一个image，命名为leftStick，透明度0，设置大小位置和锚点，挂载On-Screen-Stick    
 
-- 修改`Assets\Scripts\StudyCase3` 下脚本 `ThirdCharacterController.cs`  
+<img src="/image/studycase4/创建leftStick.png" data-fancybox="gallery"/>  
+
+- 设置 `MovementRange` 为200，设置 `ControlPath` 为LeftStick    
+
+<img src="/image/studycase4/设置leftStick.png" data-fancybox="gallery"/>  
+
+- 复制一个leftBg改名为rightBg，设置大小位置和锚点    
+
+<img src="/image/studycase4/创建rightBg.png" data-fancybox="gallery"/>  
+
+- 复制一个leftStick改名为rightStick，设置`ControlPath` 为RightStick    
+
+<img src="/image/studycase4/创建并设置rightStick.png" data-fancybox="gallery"/>   
+
+- 添加输入事件，Move添加LeftStick，创建Look，添加Detla和RightStick  
+
+<img src="/image/studycase4/添加输入事件.gif" data-fancybox="gallery"/>  
+
+- 设置虚拟相机参数移动速度从300调到100，限制角度0到70  
+
+<img src="/image/studycase4/设置虚拟相机参数.png" data-fancybox="gallery"/>  
+
+- 修改虚拟相机输入  
+
+<img src="/image/studycase4/配置虚拟相机输入.gif" data-fancybox="gallery"/>  
+
+- 修改`Assets\Scripts\studycase4` 下脚本 `ThirdCharacterController.cs`  
 ```csharp
 using UnityEngine;
 using UnityEngine.InputSystem;
+using Cinemachine;
 
-namespace StudyCase3
+namespace StudyCase4
 {
     public enum PickMode
     {
@@ -139,7 +114,7 @@ namespace StudyCase3
         Animator animator;
         Transform forward;
         Transform model;
-        Cinemachine.CinemachineVirtualCamera vCam;
+        CinemachineVirtualCamera vCam;
         public float moveSpeed = 5f;
         public float jumpSpeed = 2f;
         public float turnSpeed = 10f;
@@ -153,9 +128,13 @@ namespace StudyCase3
         public float maxDistance = 5f;
         public LayerMask layerMask;
         public float itemsRotateSpeed = 120f;
-        public Transform itemRoot;
+        public float minCameraDistance = 2f;
+        public float maxCameraDistance = 10f;
+        public float cameraZoomSpeed = 0.1f;
+        [HideInInspector] public Transform itemRoot;
         Item selectItem;
         LineRenderer lineRenderer;
+        CinemachineFramingTransposer framingTransposer;
         private void Awake()
         {
             Cursor.lockState = cursorLock;
@@ -163,21 +142,28 @@ namespace StudyCase3
             forward = transform.Find("Forward");
             model = transform.Find("Model");
             animator = model.GetComponentInChildren<Animator>();
-            vCam = transform.Find("Virtual Camera").GetComponent<Cinemachine.CinemachineVirtualCamera>();
+            vCam = transform.Find("Virtual Camera").GetComponent<CinemachineVirtualCamera>();
+            framingTransposer = vCam.GetCinemachineComponent<CinemachineFramingTransposer>();
             inputAction = Resources.Load<InputActionAsset>("PlayerInputActions");
             inputAction.FindAction("Move").started += OnMove;
             inputAction.FindAction("Move").performed += OnMove;
             inputAction.FindAction("Move").canceled += OnMove;
             inputAction.FindAction("Jump").performed += OnJump;
             inputAction.FindAction("Pick").performed += OnPickUp;
+            inputAction.FindAction("Zoom").started += OnZoom;
+            inputAction.FindAction("Zoom").performed += OnZoom;
+            inputAction.FindAction("Zoom").canceled += OnZoom;
             inputAction.Enable();
             itemRoot = transform.Find("ItemRoot");
             if (lineRenderer == null)
             {
                 lineRenderer = gameObject.AddComponent<LineRenderer>();
-                lineRenderer.material = new Material(Shader.Find("Universal Render Pipeline/2D/Sprite-Unlit-Default"));
+                lineRenderer.material = Resources.Load<Material>("Line");
                 lineRenderer.useWorldSpace = true;
             }
+            layerMask = LayerMask.GetMask("Item");
+            //开启多点触控
+            Input.multiTouchEnabled = true;
         }
         private void Update()
         {
@@ -198,6 +184,13 @@ namespace StudyCase3
                 moveDir.y = jumpSpeed;
             }
         }
+        //增加控制相机距离的方法
+        public void OnZoom(InputAction.CallbackContext context)
+        {
+            float scrollValue = context.ReadValue<float>();
+            float newDistance = framingTransposer.m_CameraDistance + (scrollValue * cameraZoomSpeed * 0.01f);
+            framingTransposer.m_CameraDistance = Mathf.Clamp(newDistance, minCameraDistance, maxCameraDistance);
+        }
         void Move()
         {
             moveDir = new Vector3(moveInput.x, moveDir.y, moveInput.y);
@@ -282,8 +275,15 @@ namespace StudyCase3
     }
 }
 ```
-- 玩家挂载脚本，创建ItemRoot节点，设置射线检测层级    
+- 玩家移除case3的脚本，挂载case4脚本   
+- BuildSettings切换到Android平台  
 
-<img src="/image/studycase3/玩家挂载脚本，创建ItemRoot节点，设置射线检测层级.png" data-fancybox="gallery"/>  
+<img src="/image/studycase4/切换到Android平台.png" data-fancybox="gallery"/>  
+
+- 打包apk  
+
+<img src="/image/studycase4/打包apk.png" data-fancybox="gallery"/>  
+
+- 在手机上安装和运行  
 
 ## 6.异闻录-FAQ
\ No newline at end of file
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