A ball rotating?

Unity Engine
1

Alright all i need to do simply is when i press forward the ball, which is the character rotates

2

Rotates like rolling

3

Apply a force to it in the direction you want it to roll

4

will that work if i want it to rotate in a specific direction

5

click on the sphere in the hierarcy,

go to components in the menu,

go to physics,

click on rigidbody.

This will add stuff like mass and gravity.

I would give you a code, but whats the spirit in that?

6

Alright I got a movement script but it interferes with my rigid body, for example it randomly rotates when i move and stuff.

The script I used was:
And I know it has a Shooting Function

var speed = 3.0;
var rotateSpeed = 3.0;
var bullitPrefab:Transform;

function Update ()
{
var controller : CharacterController = GetComponent(CharacterController);

transform.Rotate(0, Input.GetAxis (“Horizontal”) * rotateSpeed, 0);

var forward = transform.TransformDirection(Vector3.forward);
var curSpeed = speed * Input.GetAxis(“Vertical”);
controller.SimpleMove(forward * curSpeed);

if(Input.GetButtonDown(“Jump”))

{
var bullit = Instantiate(bullitPrefab,
GameObject.Find(“spawnPoint”).transform.position,
Quaternion.identity);

bullit.rigidbody.AddForce(transform.forward * 200);
}

}

@script RequireComponent(CharacterController)

7

can’t anyone help me?

8

Try using rigidbody.AddForce and AddTorque instead of Move* functions of the transform.

You generally shouldn’t directly manipulate rigidbodies using Transform

9

thank you, i will do

10

Hehe, that is exactly what I told you to do, apply a force in the direction you want to move :slight_smile:

11

Alright i have Transform.AddFrce but it doesnt work, i am really noob at java script and could really use your help

12 
rigidbody.AddForce(vector3.left * 20);

does that work?

13

My new Script is:

var speed = 3.0;
var rotateSpeed = 3.0;
var bullitPrefab:Transform;

function Update ()
{
var controller : CharacterController = GetComponent(CharacterController);

transform.Rotate(0, Input.GetAxis (“Horizontal”) * rotateSpeed, 0);

var forward = rigidbody.AddForce(Vector3.left *20);
var curSpeed = speed * Input.GetAxis(“Vertical”);
controller.SimpleMove(forward * curSpeed);

if(Input.GetButtonDown(“Jump”))

{
var bullit = Instantiate(bullitPrefab,
GameObject.Find(“spawnPoint”).transform.position,
Quaternion.identity);

bullit.rigidbody.AddForce(transform.forward * 200);
}

}

@script RequireComponent(CharacterController)

It says
A: Cannot xonvert void to void
B: Operator * cannot be used with a left void and a right hand side of type float

14

Can someone please help me, i just want to know how to make this work!

15

This worked for me a while ago

var speed = 10.0; 
var gravitypull = 0; 



 function FixedUpdate() { 
 rigidbody.AddForce (Vector3(0, gravitypull, 0)); 
  
 var cameraTransform = Camera.main.transform; 

   // Forward vector relative to the camera along the x-z plane    
   var forward = cameraTransform.TransformDirection(Vector3.forward); 
   forward.y = 0; 
   forward = forward.normalized; 

   // Right vector relative to the camera 
   // Always orthogonal to the forward vector 
   var right = Vector3(forward.z, 0, -forward.x); 

  
 if (Input.GetKey ("w")) { 
   rigidbody.AddForce(forward * speed * Time.deltaTime); 
   } 

if (Input.GetKey("s")) { 
   rigidbody.AddForce(forward * -speed * Time.deltaTime); 
   } 
    
if (Input.GetKey ("d")) { 
rigidbody.AddForce(right * speed * Time.deltaTime); 
} 

if (Input.GetKey ("a")) { 
rigidbody.AddForce(right * -speed * Time.deltaTime); 
} 

 }

Maybe this will help…?