void Update()
{
float mousePosInUnits = Input.mousePosition.x / Screen.width * screenWidthInUnits;
Vector2 paddlePos = new Vector2(mousePosInUnits, transform.position.y);
transform.position = paddlePos;
}
Hi Svetlin,
In this scenario you are converting the screen, measure in pixels, to Unity’s World Units. You are effectively stating that each Unity World Unit is equal to a number of pixels.
To give you a little example, let’s say you had a screen width of 800 pixels and that the mouse position was exactly in the middle. You would take the X value of the mouse position, which would be 400 and divide it by the screen width of 800, this results in a value of 0.5. Make sense as we are in the middle of the screen. Now, you multiple 0.5 by the screenWidthInUnits variable, let’s say this has a value of 16. The end result would be 8. So, the transform’s X axis value would then be set to 8. With a 16 Unity world unit wide play space, this would be in the middle.
Also, there’s no need to prefix your questions with [Question], the question mark on the end of the topic title indicates it is a question 
Hope this helps
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