Move rigidbody forward that will be a player

Hi Guys!
I'm new to this stuff, checked lot's of topics, videos etc and probably there was an answer to my case but i did not understood (my english isn't perfect).

I want to make my rigidbody player (ball with rotation) always move forward with same speed and only horizontal movement available. Tried lot's of different things and nothing helped.

Can someone advise what should i do?
For now i have something like that (removed not working autoforward code):

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class SphereController : MonoBehaviour
6. {  
7.     [Header("Control Settings")]
8.     [SerializeField]
9.     public float speed = 1f;
10.  
11.  
12.    
13.     private Rigidbody rb;
14.    
15.  
16.  
17.  
18.  
19.     // Start is called before the first frame update
20.     void Start()
21.     {
22.         rb = GetComponent<Rigidbody>();
23.        
24.     }
25.  
26.     // Update is called once per frame
27.     void Update()
28.     {
29.         float Hdirection;
30.        
31.  
32.  
33.         if ((Hdirection = Input.GetAxis("Horizontal")) != 0)
34.         {
35.          
36.             rb.AddTorque(0, 0, -Hdirection * Time.deltaTime * speed);
37.         }
38.  
39.      
40.  
41.      
42.  
43.  
44.         }
45.  
46.  
47. }

 

was it stay in place while rotate?

 

when i'm moving left/right it rotates.
that "auto-forward" not set yet.

 

the object need to be touch with surface(the ground). you can turn use gravity in rigidbody on to make sure the API you use work perfectly

i test your code, not touch any surface is the problem

 

Something like this I think (I haven't used AddTorque before so I might be getting this wrong):

Code (CSharp):

1. public float rollForwardSpeed = 1f;
2. public float turnSpeed = 0.2f;
3.  
4. private void FixedUpdate()
5. {
6.     HandleRollForward();
7.     HandleRotate();
8. }
9.  
10. private void HandleRollForward()
11. {
12.     rigidBody.AddTorque(transform.forward * rollForwardSpeed)
13. }
14.  
15. private void HandleRotate()
16. {
17.     float turnInput = Input.GetAxis("Horizontal");
18.     if(turnInput != 0f)
19.     {
20.         float torque = turnInput * turnSpeed;
21.         rigidBody.AddTorque(transform.up * torque);
22.     }
23. }

 

Ball is moving on the ground. It moves left and right (rotates as well), but i have a problem with making a code that will make the ball move forward continuously with consant speed

 

I will try that soon and let you know.
Thanks!

 

here a sample, you dont need if/else state

Code (CSharp):

1.  void Update()
2.     {
3.         float Hdirection = Input.GetAxis("Horizontal");
4.         float forwardspeed = 5;
5.  
6.         rb.AddTorque(new Vector3(forwardspeed, 0, -Hdirection) * Time.deltaTime * speed) ;
7.  
8.  
9.     }

 

Nice! It is moving forwad
Thank you!

Now the ball is moving really slow left/right but i will try to do something

Ball was moving forward, but rotation was making it acting weird with direction (i think).
But still it was better than many of mine attempts

 

the speed you use, where you put it, it matter. make sure you done the right calculation for it.

this should return your hDirection speed back to before

Code (CSharp):

1. rb.AddTorque(new Vector3(forwardspeed, 0, -Hdirection * speed) * Time.deltaTime) ;

 

Thanks. I will try to figure this out.
At the moment i managed to move quite fast, but facing issues to move it even faster.

 

it's all physics based, the faster the bus move the harder and longer to turn left or right.
i dont working much with physics movement, sorry dont have the right formula for rb.AddTorque