Could somebody explain to me what this code does and how it works?

I was following a certain tutorial and don't really understand what this does to the camera.

public class PixelPerfectCamera : MonoBehaviour
{

public static float pixelsToUnits = 1f;
public static float scale = 1f;
public Vector2 nativeResolution = new Vector2 (240, 160);

// Use this for initialization
void Awake ()
{
var camera = GetComponent<Camera>();
if (camera.orthographic)
{
scale = Screen.height/nativeResolution.y;
pixelsToUnits *= scale;
camera.orthographic = (Screen.height/2f)/pixelsToUnits;
}
}


}

 

I believe that it checks if your camera is orthographic (in comparison to perspective), and if so it then scales how far the camera can view depending on the vertical size of the screen.

Tip for the future: Surround all code in code blocks so that it is easier to read. http://forum.unity3d.com/threads/using-code-tags-properly.143875/

 

Thanks and i will use code blocks from now on.