wlgol/openspec/changes/more-patterns/design.md

Design

Context

Pattern module currently has 4 patterns with static offsets. Config maps digits 1-4.

Goals / Non-Goals

Goals:

• Add 6 patterns with correct offsets.
• Extend default config digits 5-0.

Non-Goals:

• Pattern editor.
• Loading from files.

Decisions

D1: Pattern storage

• Add static offset arrays and entries in patterns[].

D2: Key mapping

• 5=Beacon, 6=Loaf, 7=Boat, 8=Tub, 9=R-pentomino, 0=Acorn.

D3: Config enum

• Add ACTION_SELECT_BEACON etc. or refactor? Use new enum values for minimal change.

Open Questions

None.