Files
Ferrous-Solitaire/solitaire_engine
funman300 d7ffb16df5 fix(engine): single-card double-click with no destination now plays the reject animation
handle_double_click had a coverage gap. The flow was:

  - Priority 1: try moving the single top card to its best
    destination (foundation, then tableau).
  - Priority 2: if Priority 1 failed AND the player clicked the
    base of a multi-card stack, try moving the whole stack.

`MoveRejectedEvent` was only fired inside the Priority 2 else-branch
— so a double-click on a single card with no legal destination
fell through both priorities silently: no card_invalid.wav, no
shake animation on the source pile, the player got zero feedback
that the click was acknowledged.

The fix collapses both priorities' failure paths into one
unconditional `MoveRejectedEvent` write at the end of the
double-click branch. Single-card miss now plays the same feedback
as multi-card-stack miss. The early `return` on each successful
move keeps the rejection branch from firing on the success path.

Pre-fix, a player double-clicking the 7♠ buried under a 6♥ on
column 5 (no foundation slot for 7s; no tableau column accepting
black 7) saw nothing happen. Post-fix, the source pile shakes
and the invalid-move sound plays, exactly like a drag-and-drop
rejection.

Workspace: 1170 passing tests / 0 failing. cargo clippy
--workspace --all-targets -- -D warnings clean.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-06 19:54:28 -07:00
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