Rolling mable... rigid body?

Question

I am trying to make a marble that moves constantly... it is going to be able to move in all directions.

So far i have used the transform.Translate to move the object but this doesnt have the effect that i desire. I have seen around that adding a rigidbody to the ball and move it using that is the best option.

I have no idea of how to approach using the rigid body... can anyone help me understand how i use the rigidbody to get the marble rolling.

All help is much appreciated =)

Answer 1

Answer by ztripez · Nov 24, 2011 at 09:31 PM

It's very easy. Just apply a rigid body to the marble, add some mass to it. Since it's a physics engine it work on physics rules. When you have a mass on the marble all you need is to apply some force to the object. To test the physics i would recommend to add a Terrain to test it out.

To push the object forward (The worlds forward, not the object's):

 float force = 10;
 rigidbody.AddForce(Vector3.forward * force);

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UY505 · Jun 24, 2015 at 09:38 AM 0

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And for a 2D game, the same works well with a Rigidbody2d: if(Input.GetKey(KeyCode.RightArrow)) { player.AddForce(Vector2.right * 10); } where 10 can be replaced with a variable of type float, like playerSpeed.

Rolling mable... rigid body?

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