Fix mutate_level_add: use generic C/O floor instead of room duplicate
Previously level_add copied the top storey exactly, duplicating all named programme rooms and immediately triggering space-count failures for every room on the new floor. The lex outer-search comparison (-n_fails, score) then always rejected the multi-storey child because its fail count was far higher than the single-storey parent. Fix: retype all named-room leaves on the new storey to generic C or O before admitting the child. The outer search then retypes them incrementally via the normal retype operator. This allows level_add to produce designs with the same fail count as the parent (storey_minimum fail removed, no duplication fails added), making the multi-storey transition visible to the lex selector. Result on programme-house cold start (init.dom, 100k evals, 4 workers): before: 6 fails, single-storey, stuck after 40k evals after: 4 fails, two-storey, still improving at 100k Also adds examples/harbor-house/ from urb/examples for future runs. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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148
examples/harbor-house/generated.dom
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148
examples/harbor-house/generated.dom
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@ -0,0 +1,148 @@
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node:
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- - 0.0
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- 0.0
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- - 25.0
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- 2.0
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- - 23.0
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- 31.0
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- - 0.0
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- 31.0
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perimeter:
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a: private
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b: private
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c: null
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d: null
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rotation: 0
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division:
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- 0.5206890368316089
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- 0.5206890368316089
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height: 3.0
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elevation: 0.0
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wall_inner: 0.08
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wall_outer: 0.25
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l:
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rotation: 1
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division:
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- 0.4900271770215713
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- 0.4900271770215713
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l:
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rotation: 2
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division:
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- 0.28955830710300473
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- 0.28955830710300473
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l:
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rotation: 1
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division:
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- 0.5900577549923657
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- 0.5900577549923657
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l:
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rotation: 0
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division:
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- 0.5042565018475718
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- 0.5042565018475718
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l:
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type: st2
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rotation: 0
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r:
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type: st1
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rotation: 0
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r:
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rotation: 1
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division:
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- 0.5042565018475718
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- 0.5042565018475718
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l:
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type: O
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rotation: 0
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r:
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type: ut1
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rotation: 0
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r:
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rotation: 2
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division:
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- 0.5254855092815014
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- 0.5254855092815014
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l:
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rotation: 1
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division:
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- 0.7453088885860744
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- 0.7453088885860744
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l:
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rotation: 2
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division:
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- 0.5622884610865619
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- 0.5622884610865619
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l:
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type: k1
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rotation: 0
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r:
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rotation: 3
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division:
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- 0.545507016217933
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- 0.545507016217933
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l:
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type: ws1
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rotation: 0
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r:
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type: cr1
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rotation: 0
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r:
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type: O
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rotation: 0
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r:
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type: da1
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rotation: 0
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r:
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rotation: 2
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division:
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- 0.5017908930114854
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- 0.5017908930114854
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l:
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type: r
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rotation: 0
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r:
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type: li1
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rotation: 0
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r:
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rotation: 0
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division:
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- 0.4006976137653344
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- 0.4006976137653344
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l:
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rotation: 3
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division:
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- 0.48703066466032097
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- 0.48703066466032097
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l:
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rotation: 2
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division:
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- 0.5562346554544078
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- 0.5562346554544078
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l:
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type: m
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rotation: 0
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r:
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rotation: 2
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division:
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- 0.5042565018475718
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- 0.5042565018475718
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l:
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type: me1
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rotation: 0
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r:
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type: C
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rotation: 0
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r:
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rotation: 2
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division:
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- 0.6464404401824229
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- 0.6464404401824229
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l:
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type: O
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rotation: 0
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r:
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type: t
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rotation: 0
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r:
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type: r
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rotation: 3
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25
examples/harbor-house/init.dom
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examples/harbor-house/init.dom
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@ -0,0 +1,25 @@
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---
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node:
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-
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- 0.0
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- 0.0
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-
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- 25.0
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- 2.0
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-
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- 23.0
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- 31.0
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-
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- 0.0
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- 31.0
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perimeter:
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a: private
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b: private
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c: ~
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d: ~
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type: O
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rotation: 0
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height: 3
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elevation: 0.0
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wall_inner: 0.08
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wall_outer: 0.25
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253
examples/harbor-house/patterns.config
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examples/harbor-house/patterns.config
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---
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# Harbor House - Programme-driven building evolution (Simplified)
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# Two-story community living facility for 50+ residents
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# Using anonymous interchangeable rooms to reduce complexity
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# Building programme: community living spaces
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spaces:
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# GROUND FLOOR - Main Community Areas
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cr1:
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name: Common Room with Fireplace
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size:
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- 80.0
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- 10.0
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width:
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- 6.0
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- 1.5
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proportion:
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- 2.0
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- 0.5
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level: 0
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adjacency:
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- c
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- o
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ef1:
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name: Entrance Foyer
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size:
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- 15.0
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- 3.0
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width:
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- 3.0
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- 0.5
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level: 0
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adjacency:
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- c
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da1:
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name: Dining Area
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size:
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- 60.0
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- 8.0
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width:
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- 5.0
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- 1.0
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proportion:
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- 2.5
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- 0.8
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level: 0
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adjacency:
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- c
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- k1
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- o
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k1:
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name: Kitchen
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size:
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- 30.0
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- 5.0
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width:
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- 4.0
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- 1.0
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level: 0
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adjacency:
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- da1
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- c
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# SLEEPING AREAS - Anonymous neighborhoods (5 total, 2 ground + 3 first)
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n:
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name: Neighborhood
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size:
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- 60.0
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- 8.0
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width:
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- 5.0
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- 1.0
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proportion:
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- 2.0
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- 0.6
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adjacency:
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- c
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count: 5
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# GROUND FLOOR - Activity Spaces
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ws1:
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name: Workshop Space
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size:
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- 40.0
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- 6.0
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width:
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- 5.0
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- 1.0
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proportion:
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- 1.8
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- 0.5
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level: 0
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adjacency:
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- c
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- o
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# MEETING ROOMS - Anonymous interchangeable (3 total)
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m:
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name: Meeting Room
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size:
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- 10.0
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- 2.0
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width:
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- 2.5
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- 0.5
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level: 0
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adjacency:
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- c
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count: 3
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# GROUND FLOOR - Service Areas
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# BATHROOMS - Ground floor (3 total)
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t:
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name: Bathroom
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size:
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- 6.0
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- 1.5
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width:
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- 2.0
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- 0.5
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adjacency:
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- c
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count: 6 # 3 ground + 3 first floor
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la1:
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name: Laundry Room
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size:
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- 20.0
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- 4.0
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width:
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- 3.0
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- 0.8
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level: 0
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adjacency:
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- c
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st1:
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name: Ground Floor Storage
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size:
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- 22.0
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- 4.0
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width:
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- 3.0
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- 0.8
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level: 0
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adjacency:
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- c
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me1:
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name: Mechanical/Electrical Room
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size:
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- 25.0
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- 4.0
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width:
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- 3.5
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- 0.8
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level: 0
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adjacency:
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- c
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# STAFF OFFICES - Anonymous (2 total)
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of:
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name: Staff Office
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size:
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- 12.5
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- 2.5
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width:
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- 2.5
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- 0.5
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level: 0
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adjacency:
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- c
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count: 2
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# FIRST FLOOR - Community Areas
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li1:
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name: Library Corner
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size:
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- 20.0
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- 4.0
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width:
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- 3.5
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- 0.8
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level: 1
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adjacency:
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- c
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# FIRST FLOOR - Individual Rooms (10 anonymous rooms)
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r:
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name: Individual Room
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size:
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- 10.0
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- 2.0
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width:
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- 2.5
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- 0.5
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level: 1
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adjacency:
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- c
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count: 10
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# FIRST FLOOR - Storage
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st2:
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name: First Floor Storage
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size:
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- 18.0
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- 3.5
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width:
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- 3.0
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- 0.8
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level: 1
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adjacency:
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- c
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ut1:
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name: Utilities Closet
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size:
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- 14.0
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- 3.0
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width:
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- 2.5
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- 0.6
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level: 1
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adjacency:
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- c
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# Building constraints
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storey_minimum: 2
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storey_limit: 3
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force_roof_garden: 0
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# Circulation ratio (allow more circulation for larger building)
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ratio_circulation:
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- 0.08
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- 0.15
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# Outside space ratio (courtyard requirement)
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ratio_outside:
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- 0.15
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- 0.10
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# Staircase requirements (main + secondary)
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staircase_min: 2
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staircase_max: 2
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# Economic parameters
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value_inside: 300.0
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value_circulation: 50.0
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value_outside: 100.0
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value_supported: 300.0
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@ -130,6 +130,14 @@ def mutate_level_add(root: dom.Node, rng: np.random.Generator,
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top = dom.levels(child)[-1]
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dup = _g._copy_storey(top)
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dup.height = top.height
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# Retype all named-room leaves to generic C/O so the new storey carries no
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# duplicated programme rooms. The outer search retypes them incrementally.
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generic = [t for t in types if t.upper() in ("C", "O")]
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if not generic:
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generic = ["C"]
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for leaf in dup.leaves():
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if leaf.type not in ("C", "O", None):
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leaf.type = str(rng.choice(generic))
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top.above = dup
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return _finalise(child), f"level_add ({len(dom.levels(child))} storeys)"
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