wlgol/openspec/changes/archive/2026-11-08-more-patterns/specs/pattern-placement/spec.md

Spec Delta

ADDED Requirements

Requirement: Additional built-in patterns are available

The system SHALL provide additional built-in patterns (Beacon, Loaf, Boat, Tub, R-pentomino, Acorn) selectable via keys 5-0.

Scenario: Select beacon

• WHEN the user triggers select:beacon
• THEN a beacon preview is shown

Requirement: New patterns support rotation

The system SHALL support 90-degree rotation for all new patterns.

Scenario: Rotate new pattern

• WHEN the user rotates a new pattern preview
• THEN its cells rotate accordingly