For reading of this chapter it is strongly recommended that you've spent a few hours programming in Ruby, because otherwise you will have big problems - it isn't hard to understand and copy basic syntactic constructs, but as soon as errors occur, you can't go on without some Ruby programming experience.

Look at the directory with examples for this chapter (examples/CH3_Scripting/). I have prepared two levels for you. In directory FullLevel you will find level with several objects - you can try it right now to see how it works and look into it as to kind of reference. Directory EmptyLevel contains the same map as FullLevel, but without any objects. You should copy EmptyLevel somewhere and follow this tutorial. If you follow it carefully step-by-step, you will finally get the same as is in FullLevel.