The shield icon's dark/mushy rendering was caused by disabled mipmaps
on all 6 slot-machine icon textures (inherited from the flat lucide
icon convention, wrong for these gradient-heavy assets) - at small
display sizes this caused aliasing that hit the shield's fine detail
(RZ lettering, metallic bevels) hardest since the other icons are
bolder/simpler shapes. Enabling mipmaps/generate on all 6 fixes it;
confirmed by rendering the actual in-game presentation size before
and after, not just eyeballing the source file.
Also converts the slot machine from a full standalone screen (sidebar
nav entry, main.gd-managed) into a movable/draggable floating panel
opened from the question-player toolbar, mirroring the existing
calculator panel exactly: same top_level+custom title-bar-drag+
viewport-clamp mechanics, same open/close/toggle API, instantiated
once alongside the calculator and closed on session hide. Shrunk the
cabinet and restacked the rewards list below it (was beside it) to
fit a toolbox-sized floating panel instead of a full page, wrapped in
a ScrollContainer for any overflow.
Removed the sidebar entry and screens[] registration from main.gd and
the now-dead routing case from navigation_routes.gd.
Moves Slot Machine into the sidebar's account section (alongside RZ
Shop/Settings/Log out) instead of being reachable only from the shop -
removes the shop's promo banner and the screen's "Back to Shop" link
accordingly.
Also closes a chunk of the visual gap against the mockup: a proper
cabinet-style panel (arched top corners, glowing border), a light
"screen" panel holding a real 3x3 reel grid instead of 3 single icons,
a decorative lever, an "RZ" marquee, and the cost/spin/auto-spin
controls each in their own bordered box. Added two new vendored icons
(gem, flask-conical) for reel variety and reward-list icons.
Adds a spend-coins-for-a-random-reward mini-game reachable from the
shop. Backend mirrors the store's existing atomic/idempotent purchase
pattern (SpinAsync in CreditStore.cs) with a server-authoritative,
weighted reward roll and a rolling per-user spin-rate guard; odds are
served from GET /api/credits/spin-config so the client never hardcodes
numbers that could drift from the real payout table. The mockup's
"Streak Protector" reward was swapped for a real Exam Simulation Token
since streaks aren't currently a persisted, protectable concept.
Also fixes two latent bugs surfaced while building this:
- credits_service.gd's operation-id builder referenced a nonexistent
AuthState.user_id (should be .username), throwing on every credit
action.
- _post() silently no-op'd with no signal when signed out, which
combined with a GDScript closure gotcha (lambdas capture outer
locals by value, so reassigning inside one never reached the
caller) meant a spin attempted while unauthenticated could hang
forever instead of surfacing an error.
Adds a full flashcards system: FSRS-based scheduling, cloze/basic
card types, CSV import/export, media storage, and study UI, wired
into navigation and the dashboard alongside existing question flows.
hz