rigid body moving in only one direction.

Questions & Answers
1

Hi,

I have sphere for which I have added rigidbody. After adding the rigidbody code I have used to move object and rotate object is not worked and when trying to move object it shakes the base in which it lie. So I have search through google find that I can’t use tranform.Translate and transform.Rotate for the rigidbody so, I have used the MovePosition and MoveRotation methods. but when I try to move my object it is moving in one direction. i.e direction that I have set in my vector here rigidbody.MovePosition(rigidbody.position + (new Vector3(movementX*speed,0,movementX*speed)));

I have used this code to move rigidbody.

using UnityEngine;
using System.Collections;

public class movement : MonoBehaviour {

	// Use this for initialization
	public float speed=20f;
	public float rotation=50f;

	void Update () {
	     float movementY=Input.GetAxis("Horizontal")* Time.deltaTime;
		 float movementX=Input.GetAxis("Vertical")* Time.deltaTime;
		//  movementX*=speed;
		//  movementY*=rotation;
		
		 Quaternion deltaRotation = Quaternion.Euler(new Vector3(0,movementY*rotation,0));
		 rigidbody.MovePosition(rigidbody.position + (new Vector3(movementX*speed,0,movementX*speed)));
		 rigidbody.MoveRotation(rigidbody.rotation *deltaRotation);
	}
}

problem is rigidbody is moving in only one direction. i.e direction that I have set in Vector…When I try to move it with transform.Translate it is not working and the ground is shaking when try to move.

2

Dont move the rigidbody with MovePosition use AddForce() or AddRelativeForce() instead.
you can try something like this

// Use this for initialization
    public float speed=20f;
    public float rotation=50f;
 
    void Update () {
         float movementY=Input.GetAxis("Horizontal")* Time.deltaTime;
        float movementX=Input.GetAxis("Vertical")* Time.deltaTime;
       //  movementX*=speed;
       //  movementY*=rotation;
 
        rigidbody.AddRelativeForce(new Vector3(movementX,MovementY,0));
    }

and see what happens, im not very sure if this gonna work. But you cant try

the diference between AddForce and AddRelativeForce is that the first one adds the force independient of the actual forces in the rigidbody, and the second one applies forces relative to the actual forces applied on the body.