完成相机视角背部IK控制

Assets/Resources/Prefabs/Player/Camera.prefab

@@ -1,139 +0,0 @@
-%YAML 1.1
-%TAG !u! tag:unity3d.com,2011:
---- !u!1 &6109725415137145466
-GameObject:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  serializedVersion: 6
-  m_Component:
-  - component: {fileID: 2876901077084542335}
-  - component: {fileID: 3944192941116947467}
-  - component: {fileID: 6812351252165310732}
-  - component: {fileID: 4030617700739101234}
-  m_Layer: 9
-  m_Name: Camera
-  m_TagString: MainCamera
-  m_Icon: {fileID: 0}
-  m_NavMeshLayer: 0
-  m_StaticEditorFlags: 0
-  m_IsActive: 1
---- !u!4 &2876901077084542335
-Transform:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 6109725415137145466}
-  serializedVersion: 2
-  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: 0}
-  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
---- !u!20 &3944192941116947467
-Camera:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 6109725415137145466}
-  m_Enabled: 1
-  serializedVersion: 2
-  m_ClearFlags: 1
-  m_BackGroundColor: {r: 0.19215687, g: 0.3019608, b: 0.4745098, a: 0}
-  m_projectionMatrixMode: 1
-  m_GateFitMode: 2
-  m_FOVAxisMode: 0
-  m_Iso: 200
-  m_ShutterSpeed: 0.005
-  m_Aperture: 16
-  m_FocusDistance: 10
-  m_FocalLength: 50
-  m_BladeCount: 5
-  m_Curvature: {x: 2, y: 11}
-  m_BarrelClipping: 0.25
-  m_Anamorphism: 0
-  m_SensorSize: {x: 36, y: 24}
-  m_LensShift: {x: 0, y: 0}
-  m_NormalizedViewPortRect:
-    serializedVersion: 2
-    x: 0
-    y: 0
-    width: 1
-    height: 1
-  near clip plane: 0.1
-  far clip plane: 1000
-  field of view: 50
-  orthographic: 0
-  orthographic size: 5
-  m_Depth: 0
-  m_CullingMask:
-    serializedVersion: 2
-    m_Bits: 4294967295
-  m_RenderingPath: -1
-  m_TargetTexture: {fileID: 0}
-  m_TargetDisplay: 0
-  m_TargetEye: 3
-  m_HDR: 1
-  m_AllowMSAA: 1
-  m_AllowDynamicResolution: 0
-  m_ForceIntoRT: 0
-  m_OcclusionCulling: 1
-  m_StereoConvergence: 10
-  m_StereoSeparation: 0.022
---- !u!81 &6812351252165310732
-AudioListener:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 6109725415137145466}
-  m_Enabled: 1
---- !u!114 &4030617700739101234
-MonoBehaviour:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 6109725415137145466}
-  m_Enabled: 1
-  m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: a79441f348de89743a2939f4d699eac1, type: 3}
-  m_Name: 
-  m_EditorClassIdentifier: 
-  m_RenderShadows: 1
-  m_RequiresDepthTextureOption: 2
-  m_RequiresOpaqueTextureOption: 2
-  m_CameraType: 0
-  m_Cameras: []
-  m_RendererIndex: -1
-  m_VolumeLayerMask:
-    serializedVersion: 2
-    m_Bits: 1
-  m_VolumeTrigger: {fileID: 0}
-  m_VolumeFrameworkUpdateModeOption: 2
-  m_RenderPostProcessing: 0
-  m_Antialiasing: 0
-  m_AntialiasingQuality: 2
-  m_StopNaN: 0
-  m_Dithering: 0
-  m_ClearDepth: 1
-  m_AllowXRRendering: 1
-  m_AllowHDROutput: 1
-  m_UseScreenCoordOverride: 0
-  m_ScreenSizeOverride: {x: 0, y: 0, z: 0, w: 0}
-  m_ScreenCoordScaleBias: {x: 0, y: 0, z: 0, w: 0}
-  m_RequiresDepthTexture: 0
-  m_RequiresColorTexture: 0
-  m_Version: 2
-  m_TaaSettings:
-    m_Quality: 3
-    m_FrameInfluence: 0.1
-    m_JitterScale: 1
-    m_MipBias: 0
-    m_VarianceClampScale: 0.9
-    m_ContrastAdaptiveSharpening: 0

Assets/Resources/Prefabs/Player/Camera.prefab.meta

@@ -1,7 +0,0 @@
-fileFormatVersion: 2
-guid: 9879c25cc7687534cb82313410af20ec
-PrefabImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Resources/Prefabs/Player/Human_Male.prefab.meta

@@ -1,7 +0,0 @@
-fileFormatVersion: 2
-guid: 152c1923c5f87664ab3d9c516e11a179
-PrefabImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/ArmTest.cs

@@ -17,7 +17,7 @@ public class ArmTest : MonoBehaviour
     {
         if (!targetTransform) return;
         // transform.localEulerAngles = target;
-        targetTransform.localRotation *= Quaternion.Euler(target.x, target.y, target.z);
+        targetTransform.localRotation = Quaternion.Euler(target.x, target.y, target.z);
         //我草拟吗。transform.localEulerAngle = target;
         //wo shi da sha bi. ArmTest Monobehaviour
         //我草拟大爷的。transofrm.localEulerAngles = target;

Assets/Scripts/Fishing/Player/PlayerCharacter/PlayerCharacter.cs

@@ -1,18 +1,20 @@
 using System;
 using ECM2;
+using RootMotion.FinalIK;
 using UnityEngine;
 
 namespace NBF
 {
     public class PlayerCharacter : Character
     {
-        public GameObject cameraParent;
-
         private float _cameraPitch;
         private FPlayer _player;
+        private float _defBackSpineZ;
+
         [HideInInspector] public int nextShowSlotIndex = -1;
 
 
+        public GameObject cameraParent;
         [Space(15.0f)] public bool invertLook = true;
         [Tooltip("视角旋转敏感度")] public Vector2 sensitivity = new Vector2(0.05f, 0.05f);
 
@@ -23,10 +25,23 @@ namespace NBF
 
         public bool IsSelf;
 
+        private Quaternion spineInitialLocalRotation;
+
+
+        public LookAtIK lookAtIK; // 挂在背部上的 LookAtIK 脚本
+        public float aimDistance = 1.5f; // 目标点离相机多远
+
+        private Transform lookTarget; // 实际目标点
+        [Header("限制角度（单位：度）")] public float maxUpAngle = 20f; // 相机抬头最多20°
+        public float maxDownAngle = 40f; // 相机低头最多40°
+
         protected override void Start()
         {
             base.Start();
 
+            // 创建一个动态目标点对象，避免你每次动态生成
+           
+            lookAtIK = GetComponent<LookAtIK>();
             _player = GetComponent<FPlayer>();
             IsSelf = _player.Data.PlayerID == GameModel.RoleID;
             cameraParent = _player.CameraRoot.gameObject;
@@ -35,6 +50,11 @@ namespace NBF
                 camera = BaseCamera.Main;
             }
 
+            lookTarget = new GameObject("SpineLookTarget").transform;
+            lookTarget.SetParent(_player.transform);
+            
+            spineInitialLocalRotation = _player.BackSpine.localRotation;
+            _defBackSpineZ = -AnglesChange(_player.BackSpine.localEulerAngles.z);
             transform.position = _player.Data.position;
             transform.rotation = _player.Data.rotation;
 
@@ -75,22 +95,22 @@ namespace NBF
 
         private void UpdatePlayerHandView()
         {
-            // var backValue = 0f;
+            Vector3 cameraForward = cameraTransform.forward;
+            Vector3 flatForward = Vector3.ProjectOnPlane(cameraForward, Vector3.up).normalized;
 
-            var angle = cameraParent.transform.localEulerAngles.x;
-            angle = (angle > 180f) ? angle - 360f : angle;
-            angle *= -1;
-            if (angle > handMaxAngle.x)
-            {
-                angle = handMaxAngle.x;
-            }
-            else if (angle < handMaxAngle.y)
-            {
-                angle = handMaxAngle.y;
-            }
+            // 获取相机 pitch 角度（负值是上看，正值是下看）
+            float pitchAngle = Vector3.SignedAngle(flatForward, cameraForward, cameraTransform.right);
 
-            Debug.Log(angle);
-            _player.BackSpine.localRotation *= Quaternion.Euler(0, 0, angle);
+            // 限制 pitch 角度
+            pitchAngle = Mathf.Clamp(pitchAngle, -maxUpAngle, maxDownAngle);
+
+            // 重新构造限制后的目标方向
+            Quaternion limitedPitch = Quaternion.AngleAxis(pitchAngle, cameraTransform.right);
+            Vector3 limitedDirection = limitedPitch * flatForward;
+
+            // 设置目标点
+            lookTarget.position = cameraTransform.position + limitedDirection * aimDistance;
+            lookAtIK.solver.target = lookTarget;
         }
 
         #endregion
@@ -192,5 +212,23 @@ namespace NBF
         }
 
         #endregion
+
+        #region 工具方法
+
+        float GetCameraPitch()
+        {
+            Vector3 camForward = cameraParent.transform.forward;
+            camForward.y = 0;
+            camForward.Normalize();
+            float pitch = Vector3.SignedAngle(camForward, cameraParent.transform.forward, cameraParent.transform.right);
+            return pitch;
+        }
+
+        private float AnglesChange(float angle)
+        {
+            return (angle > 180f) ? angle - 360f : angle;
+        }
+
+        #endregion
     }
 }