Unity Screenshooter

Screenshooter.cs

    public class ScreenShooter : MonoBehaviour {
        private int _count = 0;
        // Update is called once per frame
        private void Update() {
            if ( Input.GetKeyDown( KeyCode.S ) ) {
                while ( System.IO.File.Exists( "ScreenShot_" + _count + "_" + Screen.width + "x" + Screen.height + ".png" ) ) {
                    _count++;
                }
                ScreenCapture.CaptureScreenshot( "ScreenShot_" + _count + "_" + Screen.width + "x" + Screen.height +  ".png" );
            }
        }
    }