title: How to verify the shape drawn by user in Unity
body: <p>I am creating an app in Unity, where the user will be presented by alphabets images  and user will be able to trace the character in the image using his finger. I know how to do the tracing part in Unity but what I don't know is how to verify whether the character drawn by the user is correct or not.</p>
  
  <p>For eg. User is presented with an image of character A. Now instead of drawing A user make character B. Now how can I verify that the user has drawn the wrong character and ask him to try again.</p>
  
  <p>How can I achieve the above functionality? I don't have any code for this as don't have any idea how to progress with this.</p>