package projects.nerdybuzz.catchdrop.googleservices; public interface IGoogleServices { public void signIn(); public void signOut(); public void rateGame(); public void submitClassicScore(long score); public void submitZenScore(long score); public void showClassicScores(); public void showZenScores(); public void showAchievements(); public void unlockAchievement(String achievement_id); public boolean isSignedIn(); }