Player has little control over the character after dashing in midair

Question

I'm working on a 2.5D player controller right now, and there is a problem with my dash in midair. The dash works, but the character can't be completely controlled on the X axis after the dash is finished until they hit the ground. I want the player to have full control on the X axis right after the dash so that they can dodge appropriately.

   void Update()
{
    PlayerInput();       
}

void FixedUpdate()
{
    xMovement();
    yMovement();
}

void PlayerInput()
{
    //Registers X and Y movement
    horizontalInput = Input.GetAxis("Horizontal");
    verticalInput = Input.GetAxis("Vertical");

    if (Input.GetButton("Run"))
    {
        isRunning = true;
    }
    else if (Input.GetButtonUp("Run"))
    {
        isRunning = false;
    }

    //Makes player jump by returning a bool value to "yMovement()" when pressed.
    if (Input.GetButtonDown("Jump"))
    {
        jumpRequest = true;
    }

    if (Input.GetKeyDown(KeyCode.A))
    {
        if (doubleTapTime > Time.time && lastKeyCode == KeyCode.A)
        {
            StartCoroutine(Dash(1f));
            Debug.Log("You dashed left");
        }
        else
        {
            doubleTapTime = Time.time + 0.5f;
        }

        lastKeyCode = KeyCode.A;
    }
       

    if (Input.GetKeyDown(KeyCode.D))
    {
        if (doubleTapTime > Time.time && lastKeyCode == KeyCode.D)
        {
            StartCoroutine(Dash(-1f));
            Debug.Log("You dashed right");
        }
        else
        {
            doubleTapTime = Time.time + 0.5f;
        }

        lastKeyCode = KeyCode.D;
    }
}

void xMovement()
{
    //Makes player walk left and right

    if (!isRunning && !isDashing)
    {
        transform.Translate(Vector3.left * walkSpeed * horizontalInput * Time.deltaTime);
    }

    //Makes player run left and right
    else if (isRunning && !isDashing)
    {
        transform.Translate(Vector3.left * runSpeed * horizontalInput * Time.deltaTime);
    }            
}

void yMovement()
{
    //Make player jump when Jump is pressed
    if (jumpRequest)
    {
        playerRb.velocity = new Vector3(playerRb.velocity.x, jumpForce);
        jumpRequest = false;
        //playerRb.velocity = new Vector2(playerRb.velocity.x, playerRb.velocity.y * jumpForce);
    }

    //Makes player fall faster in general, and when the Jump button is released
    if (playerRb.velocity.y < 0)
    {
        playerRb.velocity += Vector3.up * Physics.gravity.y * (fallMultiplyer - 1) * Time.deltaTime;
    }
    else if (playerRb.velocity.y > 0 && !Input.GetButton("Jump"))
    {
        playerRb.velocity += Vector3.up * Physics.gravity.y * (lowJumpMultiplyer - 1) * Time.deltaTime;
    }
}

IEnumerator Dash(float direction)
{
    isDashing = true;
    playerRb.velocity = new Vector3(playerRb.velocity.x, .0f);
    playerRb.velocity = new Vector3(dashDistance * direction, 0f, 0f);
    playerRb.useGravity = false;
    yield return new WaitForSeconds(.2f);
    isDashing = false;
    playerRb.useGravity = true;

Any tips on code optimization is also greatly appreciated. I'm still fairly new to coding and would rather learn appropriate coding habits before I have to unlearn bad ones. Thank you!

Answer 1

I think your issue is that you're using a Translation on transform for the x axis when on the yAxis you're actually using the velocity. Unity might have trouble dealing with both in a single "FixedUpdate" call. Or it might just not do what you expect.

I would recommend sticking to velocity changes. So that would give something like

void xMovement()
{
    //Makes player walk left and right

    if (!isRunning && !isDashing)
    {
        playerRb.velocity += Vector3.left * walkSpeed * horizontalInput * Time.deltaTime;
    }

    //Makes player run left and right
    else if (isRunning && !isDashing)
    {
        playerRb.velocity += Vector3.left * runSpeed * horizontalInput * Time.deltaTime;
    }            
}