public void BuildFastComputer(IBuilderFactory factory, int level)
 {
     factory.MakeCPU(1000);
     if (level == 2)
     {
         factory.MakeHardDisk(3000);
     }
     else
     {
         factory.MakeHardDisk(1000);
     }
     factory.MakeVideo(12);
 }
 public void BuildSlowComputer(IBuilderFactory factory)
 {
     factory.MakeCPU(500);
     factory.MakeHardDisk(300);
     factory.MakeVideo(6);
 }