case3修改

posts/studycase3.md

@@ -115,6 +115,10 @@ namespace StudyCase3
 
 <img src="/image/studycase3/道具挂载脚本.png" data-fancybox="gallery"/>  
 
+- 创建Pick输入事件，绑定按键F    
+
+<img src="/image/studycase3/创建Pick输入事件，绑定F.png" data-fancybox="gallery"/>  
+
 - 修改`Assets\Scripts\StudyCase3` 下脚本 `ThirdCharacterController.cs`  
 ```csharp
 using UnityEngine;
@@ -160,7 +164,7 @@ namespace StudyCase3
             model = transform.Find("Model");
             animator = model.GetComponentInChildren<Animator>();
             vCam = transform.Find("Virtual Camera").GetComponent<Cinemachine.CinemachineVirtualCamera>();
-            inputAction = Resources.Load<InputActionAsset>("Player");
+            inputAction = Resources.Load<InputActionAsset>("PlayerInputActions");
             inputAction.FindAction("Move").started += OnMove;
             inputAction.FindAction("Move").performed += OnMove;
             inputAction.FindAction("Move").canceled += OnMove;
@@ -168,6 +172,12 @@ namespace StudyCase3
             inputAction.FindAction("Pick").performed += OnPickUp;
             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.useWorldSpace = true;
+            }
         }
         private void Update()
         {
@@ -214,7 +224,12 @@ namespace StudyCase3
         }
         void CheckRayHit()
         {
-            if (pickMode != PickMode.RayCast) return;
+            lineRenderer.enabled = useDrawRay;
+            if (pickMode != PickMode.RayCast) 
+            {
+                useDrawRay = false;
+                return;
+            }
             Ray ray = new Ray(model.position, model.forward);
             RaycastHit hit;
             if (Physics.Raycast(ray, out hit, maxDistance, layerMask))
@@ -239,17 +254,6 @@ namespace StudyCase3
         }
         void DrawRay(Vector3 startPos, Vector3 endPos, Color color)
         {
-            if (lineRenderer == null)
-            {
-                lineRenderer = gameObject.AddComponent<LineRenderer>();
-                lineRenderer.material = new Material(Shader.Find("Universal Render Pipeline/2D/Sprite-Unlit-Default"));
-                lineRenderer.useWorldSpace = true;
-            }
-            if (!useDrawRay)
-            {
-                lineRenderer.enabled = false;
-                return;
-            }
             lineRenderer.startColor = lineRenderer.endColor = color;
             lineRenderer.startWidth = lineRenderer.endWidth = 0.1f;
             lineRenderer.positionCount = 2;