Need some help with my dash move

Questions & Answers
1

I’m fairly new to Unity and I’m trying to implement a dash mechanic for my 2D side-scroller.

Script 1:

public void FixedUpdate()
{
  bool dash = Input.GetButtonDown("Dash");
  m_Character.Dash(dash);
}

Script 2:

public void Dash(bool dash)
    {
        if(!m_Grounded) //Check if player on ground
            dash = false;

        if(dash)
        {
            float dashSpeed = 50f;
            float dashTime = 0.5f;

            m_Anim.Play("PlayerDash"); 

            while(dashTime > 0)
            {
                if(m_FacingRight)
                {
                    m_Rigidbody2D.velocity = Vector2.right * dashSpeed;
                }
                else
                {
                    m_Rigidbody2D.velocity = Vector2.left * dashSpeed;
                }

                dashTime -= Time.deltaTime;
            }
        }
    }

What happens is my character teleports based on m_Rigidbody2D.velocity once. I want it to be similar to most side-scrollers like Megaman, Hollow Knight, etc.

2

Play around with the velocity (make it smaller). That looks like the probable source of your confusion.