I implemented the openFeint plugin (from the openfeint website) and works like a charm. However, being new to this, I am pretty much clueless on how to actually add an actual achievement. I followed the guides from openfeint website but I am not sure I've done it right;

I made a new C# script named FeintAchievement and wrote this:

    using UnityEngine;
using System.Collections;

import com.openfeint.api.resource.Achievement;
import android.widget.Toast; // Used for presenting diagnostic messages.

public class FeintAchievement : MonoBehaviour 

new Achievement("941962").unlock(new Achievement.UnlockCB () {
  @Override public void onSuccess() {
      FeintAchievement.this.setResult(Activity.RESULT_OK);
      FeintAchievement.this.finish();
  }
  @Override public void onFailure(String exceptionMessage) {
        Toast.makeText( FeintAchievement.this,
                "Error (" + exceptionMessage + ") unlocking achievement.",
                Toast.LENGTH_SHORT).show();
        FeintAchievement.this.setResult(Activity.RESULT_CANCELED);
        FeintAchievement.this.finish();
   }
});

I have a number of errors here:

Assets/PiratesHat!/PiratesHatAssets/Scripts/FeintAchievement.cs(11,3): error CS1031: Type expected

Assets/PiratesHat!/PiratesHatAssets/Scripts/FeintAchievement.cs(12,23): error CS1519: Unexpected symbol `void' in class, struct, or interface member declaration

And it goes like this - the last error tells me I probably took the wrong route :)

Assets/PiratesHat!/PiratesHatAssets/Scripts/FeintAchievement.cs(21,2): error CS8025: Parsing error

I couldn't find a complete tutorial on this, I don't even know if achievements can be done via script or I should do something with the jar files and whatnot. I am totally lost here :)

So, be kind and guide me to a tutorial or documentation that deals with the matter.

Thanks! (a lot)