title: Implementing scripts in c++ app
body: <p>I want to move various parts of my app into simple scripts, to allow people that do not have a strong knowledge of c++ to be able to edit and implement various features.</p>
  
  <p>Because it's a real time app, I need to have some kind of multitasking for these scripts. Ideally I want it so that the c++ app calls a script function which then continues running (under the c++ thread) until either a pause point (Wait(x)), or it returns. In the case of it waiting the state needs to be saved ready for the script to be restarted the next time the app loops after the duration has expired.</p>
  
  <p>The scripts also need to be able to call c++ class methods, ideally using the c++ classes rather than plain wrapper functions around c++ classes.</p>
  
  <p>I don't want to spend a massive amount of time implementing this, so using an existing scripting language is preferred to writing my own. I heard that Python and Lua can be integrated into a c++ app, but I do not know how to do this to achieve my goals.</p>
  
  <ul>
  <li>The scripts must be able to call c++ functions</li>
  <li>The scripts must be able to "pause" when certain functions are called (eg. Wait), and be restarted again by the c++ thread</li>
  <li>Needs to be fast -- this is for a real time app and there could potentially be a lot of scripts running.</li>
  </ul>
  
  <p>I can probably roll the multitasking code fairly easily, provided the scripts can be saved and restarted (possibly by a different thread to the original).</p>