Question Addforce relative to transform

private void update()
{
gameObject.transform.position.x + speed * Time.deltaTime;
}

speed is a float = 15

 

I want to do something like addforce. But it has to be in the X axis of the object when it rotates, and when i use addforce it just use the X axis of the world and starts going right even if it was rotated.

 

You could create a vector3 and have the y and z values set to zero then just use transform.position += yourVector3

 

Code (CSharp):

1. transform.position = new Vector3(transform.position.x + speed *Time.deltaTime, transform.position.y, transform.position.z);

If you want to account for rotation you need to use transform.right

 

or (rigidbody version)

Code (CSharp):

1. rigidbody2D.AddForce(Vector2.right * speed);

Code (CSharp):

1. rigidbody2D.AddRelativeForce(Vector3.right * speed);