ruleset.txt

start -> S(12,12,12){lot}
lot -> comp(){top|left_facade|front|right_facade|back|bottom}
back -> wall

front -> subDiv("Y",6,6){gfloor|ffloor}:0.6
front -> subDiv("Y",4,4,4){gfloor|ffloor|ffloor}:0.4
left_facade -> subDiv("Y",6,6){lfloor|lfloor}:0.6
left_facade -> subDiv("Y",4,4,4){lfloor|lfloor|lfloor}:0.4

right_facade -> subDiv("Y",6,6){rfloor|rfloor}:0.6
right_facade -> subDiv("Y",4,4,4){rfloor|rfloor|rfloor}:0.4

gfloor -> subDiv("X",9,3){ftiles|entrance}:0.6
gfloor -> subDiv("X",3,9){entrance|ftiles}:0.4
ffloor -> ftiles
ftiles -> repeat("X",3){ftile}

lfloor -> ltiles
ltiles -> repeat("Z",3){ltile}

rfloor -> rtiles
rtiles -> repeat("Z",3){rtile}


ftile  -> subDiv("X",0.5,2,0.5){fwall|fwindow_area|fwall}
ltile  -> subDiv("Z",0.5,2,0.5){lwall|lwindow_area|lwall}
rtile  -> subDiv("Z",0.5,2,0.5){rwall|rwindow_area|rwall}

fwindow_area -> subDiv("Y",1.2,4,0.8){fwall|fwindow|fwall}:0.6
fwindow_area -> subDiv("Y",1.2,2,0.8){fwall|fwindow|fwall}:0.4

lwindow_area -> subDiv("Y",1.2,4,0.8){lwall|lwindow|lwall}:0.6
lwindow_area -> subDiv("Y",1.2,2,0.8){lwall|lwindow|lwall}:0.4

rwindow_area -> subDiv("Y",1.2,4,0.8){rwall|rwindow|rwall}:0.6
rwindow_area -> subDiv("Y",1.2,2,0.8){rwall|rwindow|rwall}:0.4
fwindow -> window
lwindow -> window
rwindow -> window

fwall -> wall
lwall -> wall
rwall -> wall

entrance -> subDiv("X",0.5,2,0.5){wall|door_area|wall}
door_area -> subDiv("Y",5,1){door|wall} :0.6
door_area -> subDiv("Y",3,1){door|wall} :0.4