I need Help! Gun rotate around point

hello i am new to unity: my problem is that i want when i grapple my gun rotates around the grapplepoint but it rotates the entire gun i want it to rotate the gun's y axis only

weapon Sway code:
problem is in line 38:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class WeaponSway : MonoBehaviour
6. {
7.     public float Intensity;
8.     public float smooth;
9.     private Quaternion OriginRotation;
10.  
11.  
12.     private void Start()
13.     {
14.         OriginRotation = transform.localRotation;
15.     }
16.     private void Update()
17.     {
18.         UpdateSway();
19.     }
20.  
21.     private void UpdateSway()
22.     {
23.         //controls
24.         float t_X_mouse = Input.GetAxis("Mouse X");
25.         float t_Y_mouse = Input.GetAxis("Mouse Y");
26.  
27.         //calcuate target rotation
28.         Quaternion Target_adjX = Quaternion.AngleAxis(Intensity * t_X_mouse, Vector3.up);
29.         Quaternion Target_adjY = Quaternion.AngleAxis(Intensity * t_Y_mouse, Vector3.right);
30.         Quaternion TargetRotation = OriginRotation * Target_adjX * Target_adjY;
31.  
32.         //rotate towards target rotation
33.  
34.      
35.            
36.         if (GetComponent<GrapplingGunScript>().isGrapling)
37.         {
38.             transform.LookAt(GetComponent<GrapplingGunScript>().GrapplePoint);
39.            
40.         }
41.         else if (!GetComponent<GrapplingGunScript>().isGrapling)
42.         {
43.             transform.localRotation = Quaternion.Lerp(transform.localRotation, TargetRotation, Time.deltaTime * smooth);
44.         }
45.  
46.     }
47. }
48.  

GrappleGun script:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5.  
6.  
7. public class GrapplingGunScript : MonoBehaviour
8. {
9.     private LineRenderer Lr;
10.     public Vector3 GrapplePoint;
11.     public LayerMask Graprable;
12.     public Transform GunTip;
13.     private float MaxDistance =100f;
14.     private SpringJoint Joints;
15.     public bool isGrapling = false;
16.     private LayerMask LayerGrap;
17.    
18.  
19.     private void Awake()
20.     {
21.         Lr = GetComponent<LineRenderer>();
22.  
23.     }
24.     private void Start()
25.     {
26.         LayerGrap = LayerMask.NameToLayer("Grapelable");
27.     }
28.  
29.     private void Update()
30.     {
31.         //rather than use (public transfrom) we used this becuse in a prefab we can not refrence them when we instaciate
32.         //so we refrence them using tags
33.         var cam = GameObject.FindWithTag("Cam");
34.         var Player = GameObject.FindWithTag("Player");
35.  
36.  
37.         if (Input.GetMouseButtonDown(0))
38.         {
39.             StartGrapple();
40.            
41.            
42.         }else if (Input.GetMouseButtonUp(0))
43.         {
44.             StopGrapple();
45.         }
46.         void StartGrapple()
47.         {
48.             RaycastHit Hit;
49.          
50.             if (Physics.Raycast(origin: cam.transform.position,direction: cam.transform.forward,out Hit,MaxDistance,Graprable))
51.             {
52.                 if(Hit.transform.gameObject.layer == LayerGrap)
53.                 {
54.                     isGrapling = true;
55.                     GrapplePoint = Hit.point;
56.                     Joints = Player.gameObject.AddComponent<SpringJoint>();
57.                     Joints.autoConfigureConnectedAnchor = false;
58.                     Joints.connectedAnchor = GrapplePoint;
59.  
60.                     float DistanceFromPoint = Vector3.Distance(a: Player.transform.position, b: GrapplePoint);
61.  
62.                     //distance it will try to keep you from grappling
63.                     Joints.maxDistance = DistanceFromPoint * 0.8f;
64.                     Joints.minDistance = DistanceFromPoint * 0.25f;
65.  
66.                     //change values how you see fit
67.                     Joints.spring = 4.5f;
68.                     Joints.damper = 7f;
69.                     Joints.massScale = 4.5f;
70.  
71.                     Lr.positionCount = 2;
72.                 }
73.                 else
74.                 {
75.                     return;
76.                 }
77.              
78.             }
79.         }
80.      
81.        
82.     }
83.  
84.     private void LateUpdate()
85.     {
86.         DrawRope();
87.     }
88.     void DrawRope()
89.     {
90.         if (!Joints) return;
91.        
92.          
93.        
94.         Lr.SetPosition(index: 0, GunTip.position);
95.         Lr.SetPosition(index: 1, GrapplePoint);
96.     }
97.    public void StopGrapple()
98.     {
99.         isGrapling = false;
100.         Lr.positionCount = 0;
101.         Destroy(Joints);
102.     }
103.     public bool IsGrappling()
104.     {
105.         return Joints != null;
106.     }
107.     public Vector3 GetGrapplePoint()
108.     {
109.         return GrapplePoint;
110.     }
111.  
112. }
113.  

 

Get the GrapplePoint, store it in a Vector3, save that Vector3's Y component to your gun's Y position, then use that in your LookAt function.

 

i am still confused

Code (CSharp):

1. GrapplePointer = GetComponent<GrapplingGunScript>().GrapplePoint;
2.        
3.  
4.  
5.         if (GetComponent<GrapplingGunScript>().isGrapling)
6.         {
7.             Vector3 gun = transform.localPosition;
8.             gun.y = GrapplePointer.y;
9.             transform.LookAt(gun);
10.            
11.         }
12.         else if (!GetComponent<GrapplingGunScript>().isGrapling)
13.         {
14.             transform.localRotation = Quaternion.Lerp(transform.localRotation, TargetRotation, Time.deltaTime * smooth);
15.         }

can you give me an example? here the code i tried for what you toled me

 

Oh, rereading mine, I typo'd "set" as "save", sorry. That would make it more confusing.

Going back to the code you had before,

Code (csharp):

1.  
2.             transform.LookAt(GetComponent<GrapplingGunScript>().GrapplePoint);
3. //replace with
4. Vector3 grapplePoint = transform.LookAt(GetComponent<GrapplingGunScript>().GrapplePoint);
5. grapplePoint.y = transform.y;
6. transform.LookAt(grappePoint);

 

hey
i dont want to be annoying (i am really sorry) but when i did exactly as you said and replaced it well i got 2 erros


-Error CS0029 Cannot implicitly convert type 'void' to 'UnityEngine.Vector3'
-Error CS1061 'Transform' does not contain a definition for 'y' and no accessible extension method 'y' accepting a first argument of type 'Transform' could be found (are you missing a using directive or an assembly reference?)

(i know its annoying but would you please explain it to me?)

 

Uh... yep, those are my fault. Typed that in half-asleep this morning.

Code (csharp):

1.  
2. Vector3 grapplePoint = GetComponent<GrapplingGunScript>().GrapplePoint;
3. grapplePoint.y = transform.position.y;
4. transform.LookAt(grapplePoint);