Cards previously read as flat stickers on the felt — no separation cue, no sense the play surface had any depth. Each CardEntity now spawns a CardShadow child sprite: neutral black at 25 % alpha, sized to card_size + 4 px halo, offset (2, -3) and rendered at local z -0.05 so it sits behind its card. Cards in the active drag set switch to a lifted shadow: alpha 40 %, offset (4, -6), padding (8, 8). update_card_shadows_on_drag runs every Update and snaps each shadow to the right state based on DragState membership — no lerp, no animation cost. The pure card_shadow_params(is_dragged) helper is unit-tested for the four parameter values. resize_cards_in_place gains a third query for shadows so the in-place resize keeps shadows cheap (no Sprite regeneration); the shadow's current alpha is read to preserve idle vs lifted padding across a resize. update_card_entity's despawn_related call is followed by a fresh add_card_shadow_child so the shadow re-attaches when the card is repainted (face flip, settings change, theme swap). The pre-existing bulk drag-shadow under the whole lifted stack is untouched — per-card shadows complement it. All shadow values flow through eight new ui_theme tokens (CARD_SHADOW_COLOR, alphas, offsets, paddings, local z) so the visual is tunable in one place. Color is neutral black so the shadows don't conflict with color-blind mode's red/blue suit tints. Four new tests pin the contract: shadow params for idle and drag states, every CardEntity spawns with exactly one CardShadow child, and dragging shifts only the dragged shadow's offset while leaving unrelated shadows on the idle offset. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Solitaire Quest
A cross-platform Klondike Solitaire game written in Rust, featuring a full progression system with XP, levels, achievements, daily challenges, and optional self-hosted sync so your stats follow you across machines.
Features
- Klondike Solitaire — Draw One and Draw Three modes
- Progression — XP, levels, unlockable card backs and backgrounds
- 18 Achievements — including secret ones
- Daily Challenge — server-seeded so every player worldwide gets the same deal
- Leaderboard — opt-in, powered by your own self-hosted server
- Special Modes (unlocked at level 5): Zen, Time Attack, Challenge
- Sync — pull/push stats across devices via a self-hosted server
- Color-blind mode — blue tint on red-suit cards
Building
Prerequisites
- Rust stable toolchain (
rustup install stable) - Linux:
libasound2-dev libudev-dev libxkbcommon-dev - macOS: Xcode Command Line Tools
# Fast development build
cargo run -p solitaire_app --features bevy/dynamic_linking
# Release build
cargo build -p solitaire_app --release
./target/release/solitaire_app
Controls
| Key | Action |
|---|---|
| Left click / drag | Move cards |
| Right click | Highlight legal moves for a card |
| Space / D | Draw from stock |
| Z / Ctrl+Z | Undo |
| N | New game |
| S | Stats overlay |
| A | Achievements overlay |
| P | Profile overlay |
| O | Settings |
| L | Leaderboard |
| H | Help / controls |
| Enter | Auto-complete (when badge is lit) |
| Escape | Pause / clear selection |
| Arrow keys | Navigate card selection |
Sync Server (optional)
To sync stats across machines, run the self-hosted server. See README_SERVER.md for setup instructions.
Once the server is running, open Settings → Sync Backend, enter the server URL and your username, and register an account from within the game.
Running Tests
# All tests
cargo test --workspace
# Just game logic (no display required)
cargo test -p solitaire_core -p solitaire_sync -p solitaire_data -p solitaire_server
# Lint
cargo clippy --workspace -- -D warnings
Credits
Built on Bevy and the wider Rust ecosystem (Tokio,
Axum, sqlx, Serde, kira, and many more). Card faces come from
hayeah/playing-cards-assets
(MIT, derived from the public-domain vector-playing-cards library); the
default card back is original work; the UI font is FiraMono-Medium (OFL).
All audio is synthesized programmatically by this project. See
CREDITS.md for the full list and license details.
License
MIT — see LICENSE.