# A one-bed flat you can resize: three numbers at the top size the whole plan.
#
# The rooms are sized from the three `let`s and placed by relation (`right-of`,
# `below`), `walls from rooms` derives the shell and the partitions from them, every
# opening is hosted by the rooms it joins, and every fixture is anchored to its room.
# So a change to any of the three numbers moves the walls, the doors, the windows, the
# furniture and the dimensions with it, and nothing needs editing by hand. In the
# playground each `let` is a slider.
plan "One-Bed Flat (resizable)" {
  units mm
  grid 50
  north up
  dims auto all

  let LIVING = 4500    # living room width
  let BEDROOM = 3300   # bedroom width
  let DEPTH = 5400     # living and bedroom depth

  room id=r_live at (0,0) size LIVING x DEPTH label "Living / Kitchen" uses living kitchen
  room id=r_bed  right-of r_live align top gap 0 size BEDROOM x DEPTH label "Bedroom" uses bedroom
  room id=r_hall below r_live align left gap 0 size LIVING x 2100 label "Entry" uses hall
  room id=r_bath right-of r_hall align top gap 0 size BEDROOM x 2100 label "Bath" uses bath

  # The entry runs into the living room with no leaf: an opening across the whole edge.
  walls from rooms exterior 200 partition 100 { open between r_hall and r_live }

  door id=d_front on r_hall.bottom at center width 900 hinge near start swing into r_hall
  door between r_live and r_bed  at 900 from end width 800 hinge near end swing into r_bed
  door between r_hall and r_bath at 900 from start width 800 hinge near start swing into r_bath

  window on r_live.top width 1800
  window on r_bed.top  width 1200
  window on r_bath.bottom width 600

  furniture counter      against r_live.left offset 400  size 600x600
  furniture stove        against r_live.left offset 1000 size 600x600
  furniture kitchen_sink against r_live.left offset 1800 size 800x600
  furniture sofa         in r_live anchor top-right flush size 800x1600 label "Sofa"
  furniture bed          in r_bed  anchor top-right flush size 1400x2000 label "Bed"
  furniture shower       in r_bath anchor top-right flush size 900x900
  furniture wc           against r_bath.bottom offset 1500 size 400x700
  furniture basin        against r_bath.bottom offset 600 size 600x450

  title { project "One-Bed Flat (resizable)" drawn_by "ArchLang" date "2026-11-06" }
}