Sharing script for sci-fi worm behavior

Hey guys!
I was searching for a DumpedTranform script to animate my worm, and was dissapointed when found that code. So I made my own script, maybe it would be useful for someone
this script do this

My script settings:


Script:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class WormTransform : MonoBehaviour
6. {
7.     [SerializeField]
8.     private List<Transform> transformList;
9.  
10.     [SerializeField]
11.     private float distance = 1.5f;
12.  
13.     [SerializeField, Range(0f, 50f)]
14.     private float moveSpeed = 10f;
15.  
16.     [SerializeField, Range(0f, 50f)]
17.     private float rotateSpeed = 10f;
18.  
19.     private List<WormCell> cellList = new List<WormCell>();
20.     private float deltaMove, deltaRotate;
21.  
22.     private void Awake()
23.     {
24.         for (int i = 0; i < transformList.Count - 1; i++)
25.         {
26.             cellList.Add(new WormCell(transformList[i], transformList[i + 1]));
27.         }
28.     }
29.  
30.     private void OnEnable()
31.     {
32.         for (int i = 0; i < cellList.Count; i++)
33.             cellList[i].Init(distance);
34.     }
35.  
36.     private void FixedUpdate()
37.     {
38.         int i;
39.  
40.         deltaMove = moveSpeed * Time.fixedDeltaTime;
41.         deltaRotate = rotateSpeed * Time.fixedDeltaTime;
42.  
43.         //for (i = cellList.Count-1; i >= 0; i--)
44.         for (i = 0; i < cellList.Count; i++)
45.             cellList[i].Calculate(deltaMove, deltaRotate, distance);
46.  
47.         for (i = 0; i < cellList.Count; i++)
48.             cellList[i].Apply();
49.     }
50.  
51. #if UNITY_EDITOR
52.     private void LateUpdate()
53.     {
54.         for (int i = 0; i < cellList.Count; i++)
55.             cellList[i].Apply();
56.     }
57. #endif
58. }
59.  
60. public class WormCell
61. {
62.     private Transform source, target;
63.  
64.     private Quaternion rotation;
65.     private Vector3 position;
66.  
67.     public WormCell(Transform source, Transform target)
68.     {
69.         this.source = source;
70.         this.target = target;
71.     }
72.  
73.     public void Init(float distance)
74.     {
75.         target.position = source.position - source.forward * distance;
76.         target.rotation = source.rotation;
77.         rotation = target.rotation;
78.         position = target.position;
79.     }
80.  
81.     public void Calculate(float deltaMove, float deltaRotate, float distance)
82.     {
83.         rotation = Quaternion.Lerp(rotation, source.rotation, deltaRotate);
84.         position = source.position - target.forward * distance;
85.     }
86.  
87.     public void Apply()
88.     {
89.         target.rotation = rotation;
90.         target.position = position;
91.     }
92. }

Enjoy!

p.s.
if movement would be laggy, remove #if & #endif lines

 

Hello, i want the cubes to follow the head with nearly 0 distance. but when i do that, the body doesnt seems like moving in one piece. So i dont want to see other cubes, i just want to see them moving like a one piece . what do i need to do? more cubes? close distance? maybe some changes in the source code ?

 

Hi, are you sure you need 0 distance? maybe you need distance equal to cube width? so there wont be "empty spaces"
Or maybe you can draw or show what you need exactly?

 

Its like this rn. i want it like its one piece cube not 10 pieces come together

 

hmm, I suppose you need 2 cells then, not 10. 2 cells - its head + cube. You can use "dummy" head, so head wont be a cube. Just empty game object. and it will have second cell - cube. second cell will follow head. Is it what you need?

 

Unfortunately not. Maybe this picture will help.

Edit: i figured out if i use bones instead of cubes it worked like i wanted to. Kennai if its possible to make it with cubes please let me know. Thank you.

 

Well, my script definitelly is not what you need. I think you need Joints, which works together with physics

 

I will look into that also. Thanks again.

 

Nice! Thanks for sharing. works pretty good.
You can have a nice elastic effect by Lerping the position, using a multiple of deltaMove as t.

Bravo.