Raycast not working in a 2d world

[novel vector]

bool isTouching = Input.touchCount > 0;
        if (isTouching)
        {
            Touch touch = Input.GetTouch(0);
            Ray ray = Camera.main.ScreenPointToRay(touch.position);
            RaycastHit hit;
            Debug.Log("Is touching: "+isTouching);
            
        if (Physics.Raycast(ray, out hit,99999))
        {
                if (touch.phase == TouchPhase.Began)
          Debug.Log("Raycast " +hit.transform.name);
        }
            
        }
    }``` I even set the distance to very high. I'm trying to do drag and drop but every video i copied doesn't work.
by drag and drop, i mean touching an object and it moves only when your finger moves
It only moves on one axis though, either on the x or the y (this is how i want it to work)

[winged knot]

Physics.Raycast won't hit 2D colliders. You'll have to find another way of detecting the object you tapped on.

[novel vector]

so, i have to do it in a 3d scene. making it 2.5d?

[winged knot]

You could also use the OnMouse... messages from MonoBehaviour. Despite their name, they should also work for touch iirc

[novel vector]

alternatively, will 3D prefabs work in an orthographic camera view?

[novel vector]

won't this just detect one of the touches if you have multiple fingers on the screen?