title: Using AndEngine in dot42 project: compilation errors
body: <p>I'm using dot42 to develop simple 2D game in C# and target Android market. Game is pretty simple so I can manage to make things work on my own but since AndEngine seems to have already implemented all features I will need (pinch zoom, panning, proper scene workflow, etc) I thought it would be a good opportunity to get familiar with that engine. And since dot42 says it is possible to use jars what can go wrong?</p>
  
  <p>Apparently a lot:</p>
  
  <ul>
  <li><p>after including andengine.jar into project first I got</p>
  
  <p><code>Cannot resolve B in context org.andengine.util.adt.spatial.quadtree.FloatQuadTree</code> </p></li>
  </ul>
  
  <p>which I eventually "fixed" by commenting out all 3 classes in that package after trying to find out which usage of that template class was causing it (As far as I saw all passed types derived from required interface so whatever...)</p>
  
  <ul>
  <li><p>then I got 12 errors related to incorrect return type of abstract classes in hierarchy under IModifier, like this </p>
  
  <p>'Org.Andengine.Entity.Modifier.SingleValueChangeEntityModifier.DeepCopy()': return type must be 'Org.Andengine.Util.Modifier.IModifier' to match overridden member 'Org.Andengine.Util.Modifier.BaseModifier.DeepCopy()'    D:\Development\AndEngineTest\dot42Application1\obj\Debug\andengine.cs</p></li>
  </ul>
  
  <p>Classes indicated by dot42 are abstract so they do not have implemetations of DeepCopy method which is implemented correctly in classes derived from those. So as far as I know everything should be ok because classes that can be instanciated have full implementation. And ok, those implementations do not return "same type" as method in interface at top (bottom? I always confuse that) of hierarchy but derived type of a class that implements that method, but again that should be perfectly ok. Especially that Java didn't complain about anything so drastic.</p>
  
  <p>I have a feeling dot42 is getting lost somewhere in inheritance hierarchy if it gets too complex.</p>
  
  <p>AndEngine was downloaded today from official branch, compiled with ADT bundle for Android 4.0.3 (lowest system version I decided to support). Compilation showed some warnings but they all were about deprecated things so I don't believe it would matter in this case.</p>
  
  <p>So anybody tried and can share some hints? Maybe dot42 dev will again answer my question? :)</p>