Lucas WintherandClaude Opus 5.5 820b378929 feat: undo in Module 9 and stackAt from Module 8; Lesson 8 quote matches the reference ...

Baba.undo() restores the level before the last step or move (board snapshot:
objects in age order with ids, the id counter, and won; rules recompiled).
place clears the history. SpellGrid's undo throws/panics 'not supported'.
stackAt / stack_at lists a tile's kinds oldest first, on Baba and SpellGrid.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-11-11 11:20:03 +01:00

..

expansion

fix(puzzle): an object steps once per movement phase; negated conversion is settled per object

2026-11-11 09:18:00 +01:00

reference

feat: undo in Module 9 and stackAt from Module 8; Lesson 8 quote matches the reference

2026-11-11 11:20:03 +01:00

tests

feat: undo in Module 9 and stackAt from Module 8; Lesson 8 quote matches the reference

2026-11-11 11:20:03 +01:00

lesson.md

feat: undo in Module 9 and stackAt from Module 8; Lesson 8 quote matches the reference

2026-11-11 11:20:03 +01:00

scenarios.md

feat: undo in Module 9 and stackAt from Module 8; Lesson 8 quote matches the reference

2026-11-11 11:20:03 +01:00