How to roll a ball ?

Questions & Answers
1

Hi guys,

I am making a game where the main player is a ball and I want to make the ball roll when I move it. How can I make that? What script should I write?

Thanks.

3

The right way to roll the ball it is roll ball to the way with your camera will faced…So for this I wrote the code on c# witch will move the ball always in right way,the way witch look your camera…Sooo

public float ballSpeed = 10.0f;

void FixedUpdate(){

if(input.GetKeyDown(KeyCode.W)){
   this.rigidbody.AddForce(Camera.main.transform.forward * ballSpeed);
}

 if(input.GetKeyDown(KeyCode.S)){
   this.rigidbody.AddForce(-Camera.main.transform.forward * ballSpeed);
}

 if(input.GetKeyDown(KeyCode.A)){
   this.rigidbody.AddForce(-Camera.main.transform.right * ballSpeed);
}

 if(input.GetKeyDown(KeyCode.D)){
   this.rigidbody.AddForce(Camera.main.transform.right * ballSpeed);
}

}

2

A simple way would be to use transform.Translate as well as transform.Rotate, so that the ball rotated as it moved:

// Moves ball along the X and rotates on the z to simulate rolling
transform.Translate(5, 0, 0);
transform.Rotate(0, 0, 5);

Obviously that’s REALLY basic and you’d need to tweak the math but shouldn’t be too hard to get going.

4

add to the sphere a rigid body and use this code:

public float speed;
	void FixedUpdate (){

	float moveHorizontal = Input.GetAxis("Horizontal");

	float moveVertical = Input.GetAxis("Vertical");

	Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);

	rigidbody.AddForce(movement * speed * Time.deltaTime);
	}