Unable to achieve two finger panning

Question

I'm looking to achieve a two finger smooth pan system in my project. However, the code below does not work, any interaction with the screen doesn't change to position of the camera.

I am unsure where did I go wrong as I'm quite new to Unity.

Any help will be greatly appreciated.

void Update () {

    //Detect If there are a) two fingers, b) touching the screen.

    if (Input.touchCount == 2 && Input.GetTouch(0).phase == TouchPhase.Began)
    {
        if (Input.GetTouch(0).phase == TouchPhase.Began && Input.GetTouch(1).phase == TouchPhase.Began)
        {
            if (Input.GetTouch(0).phase == TouchPhase.Stationary && Input.GetTouch(1).phase == TouchPhase.Began)
            {
                if (Input.GetTouch(0).phase == TouchPhase.Moved && Input.GetTouch(1).phase == TouchPhase.Began)
                {

                    Vector2 defaultCamera = transform.position;

                    Touch touchZero = Input.GetTouch(0); //Get locality of first touch.
                    Touch touchOne = Input.GetTouch(1); // Get locality of second touch.

                    Vector2 originalMid = Vector2.Lerp(touchZero.position, touchOne.position, 0.5f);

                    // Find the position in the previous frame of each touch.
                    Vector2 touchZeroPrevPos = touchZero.position - touchZero.deltaPosition;
                    Vector2 touchOnePrevPos = touchOne.position - touchOne.deltaPosition;

                    Vector2 touchMid = Vector2.Lerp(touchZeroPrevPos, touchOnePrevPos, 0.5f); //Get locality of midpoint between touches.

                    // Find the magnitude of the vector (the distance) between the touches in each frame.
                    Vector2 finalTouch = touchMid - originalMid;

                    transform.position = defaultCamera + finalTouch * Time.deltaTime; //transform camera using the new vector.

                }
            }
        }
    }

Answer 1

From the Unity documentation:

Moved   A finger moved on the screen.
Stationary  A finger is touching the screen but hasn't moved.

You are checking to see that the fingers are both station and have moved. It is either one of the other. Your code inside the if statements will never run.

I see what you are trying to do, but it does not wait after one if statement for the next to be true. After your 2nd/3rd if statement is false, it exits all of the if statements. When it comes back around, it will start at the first if statement. It will not pick up where you left off.

You need to do something along these lines:

if (Input.touchCount == 2 && Input.GetTouch(0).phase == TouchPhase.Moved) {
    //do stuff
}