Each line define a stack of floors. It starts with a letter serving as ID for the blueprints. Follwing the ID goes a list of parts that are used. Each entry is regular expression that is matched against the list of parts loaded from the .vox file. (Press [Show parts] to see the list). In case of a few models matching the part name one is picked randomly. {repA} = repeat next part random() times {repB} = repeat next part random() times
Houses are assembled from the previously defined stacks. Each letter correspond to a single stack. Using a lower letter flips the stack being inserted. Symbol ^ makes a 90' turn.