Freeze the position code example
Example: freeze axis in script
public Rigidbody2D rb;
void Start()
{
rb.constraints = RigidbodyConstraints2D.FreezeRotationX;
rb.constraints = RigidbodyConstraints2D.FreezeRotationY;
rb.constraints = RigidbodyConstraints2D.FreezeRotationZ;
rb.constraints = RigidbodyConstraints2D.FreezePositionX;
rb.constraints = RigidbodyConstraints2D.FreezePositionY;
rb.constraints = RigidbodyConstraints2D.FreezePositionZ;
rb.constraints = RigidbodyConstraints2D.FreezeAll;
rb.constraints = RigidbodyConstraints2D.None;
}