Files
Ferrous-Solitaire/solitaire_engine/src/replay_overlay/mod.rs
T
funman300 4cb4212829
Test / test (pull_request) Successful in 36m34s
fix(replay): store the deal via upstream card_game serializers (schema v4)
Replays previously persisted only seed + moves and re-dealt the board
from the seed at playback time, so any change to the seed->deal mapping
(RNG bumps, upstream upgrades) silently invalidated every existing
replay. Schema v4 instead embeds a SessionRecording - the upstream
card_game Session serde ({config, initial_state, instructions}) - so
playback rebuilds the exact recorded board; seed/draw_mode/mode remain
caption metadata only.

- core: SessionRecording newtype delegating to Session<Klondike> serde;
  GameState::recording() / from_recording(); from_instructions_unchecked
  fixture helper; serde_json added to dev-deps (tests only)
- data: Replay v4 (recording replaces moves); v1-v3 files rejected by
  the existing version gate
- engine: win-recording and sync upload freeze game.recording();
  playback rebuilds from the recording; Playing carries the extracted
  move list (+ Box<Replay> for clippy large_enum_variant)
- wasm: replay_export() builds the full v4 upload payload so JS never
  hand-assembles it (the old game.js path hardcoded schema_version: 2
  and corrupted u64 seeds via Math.round); ReplayPlayer::from_json
  enforces schema_version == 4 with a descriptive error
- web: game.js/play.html use replay_export; replay.js surfaces player
  construction errors in the caption instead of dying silently
- server: mode validation accepts data-carrying GameMode variants
  (Difficulty uploads previously 400'd against the String field)

Both replays on prod are May-era v1 rows with empty move lists - every
shared replay was already unplayable; the viewer now says why.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 09:10:38 -07:00

1272 lines
58 KiB
Rust
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
//! On-screen overlay shown while a recorded [`Replay`] plays back.
//!
//! The overlay is a thin top-of-window banner with three pieces of UI:
//!
//! - A "▌ replay" label on the left so the player knows the surface is
//! under playback control rather than live input.
//! - A "MOVE N/M" progress chip in the centre, recomputed every frame
//! the cursor advances and bordered in `ACCENT_PRIMARY` so it
//! reads as a discrete callout.
//! - A "Stop" button on the right that aborts playback and returns
//! control to the player.
//!
//! When playback finishes ([`ReplayPlaybackState::Completed`]) the banner
//! label swaps to "▌ replay complete" and stays visible until the playback
//! core auto-clears the resource back to [`ReplayPlaybackState::Inactive`]
//! a few seconds later, at which point the overlay despawns.
//!
//! The overlay sits at z-layer [`Z_REPLAY_OVERLAY`] — above gameplay but
//! below every modal layer ([`Z_MODAL_SCRIM`] and up). That ordering lets
//! the player still open Settings, Pause, and Help during a replay; those
//! modals will render on top of the banner as expected.
//!
//! [`Replay`]: solitaire_data::Replay
//! [`Z_MODAL_SCRIM`]: crate::ui_theme::Z_MODAL_SCRIM
mod format;
mod input;
#[cfg(test)]
mod tests;
mod update;
pub(crate) use self::format::*;
pub(crate) use self::input::*;
pub(crate) use self::update::*;
use crate::events::{DrawRequestEvent, MoveRequestEvent, StateChangedEvent, UndoRequestEvent};
use crate::font_plugin::FontResource;
use crate::platform::SHOW_KEYBOARD_ACCELERATORS;
use crate::replay_playback::ReplayPlaybackState;
use crate::ui_modal::{ButtonVariant, spawn_modal_button};
use crate::ui_theme::{
ACCENT_PRIMARY, BG_ELEVATED_HI, BORDER_SUBTLE, HighContrastBackground, HighContrastBorder,
STATE_SUCCESS, STATE_SUCCESS_HC, TEXT_PRIMARY, TEXT_PRIMARY_HC, TEXT_SECONDARY, TYPE_BODY,
TYPE_CAPTION, TYPE_HEADLINE, VAL_SPACE_1, VAL_SPACE_2, VAL_SPACE_4, Z_DROP_OVERLAY,
};
use bevy::prelude::*;
// ---------------------------------------------------------------------------
// Z-index — see `ui_theme::Z_MODAL_SCRIM` (200) for the next layer above.
// ---------------------------------------------------------------------------
/// `bevy::ui` `ZIndex` value for the replay overlay banner.
///
/// Numeric value is `Z_DROP_OVERLAY as i32 + 5 = 55`; chosen so the banner
/// sits clearly above the HUD top layer (`Z_HUD_TOP = 60` is intentionally
/// **below** modals, but the overlay needs to be above HUD readouts) yet
/// well below `Z_MODAL_SCRIM = 200` so Settings, Pause, and Help modals
/// continue to render on top of the overlay during a replay.
///
/// The `Z_DROP_OVERLAY + 5` formula in the spec is reproduced here as an
/// integer because `Z_DROP_OVERLAY` itself is a `f32` Sprite-space z used
/// for the drop-target overlay sprites — UI nodes use `i32` `ZIndex`, so
/// we materialise a separate constant rather than reuse the `f32` value.
pub const Z_REPLAY_OVERLAY: i32 = Z_DROP_OVERLAY as i32 + 5;
/// `bevy::ui` `ZIndex` for the full-screen tableau dim layer.
///
/// One rung below [`Z_REPLAY_OVERLAY`] (= 54) so the replay chrome
/// (banner + move-log panel) renders clearly on top while the dim scrim
/// darkens the card world beneath it. World-space sprites (cards,
/// badges, drop-target overlays) are always below any UI node regardless
/// of their Transform.z — the dim layer doesn't need to know their z
/// values.
const Z_REPLAY_DIM: i32 = Z_REPLAY_OVERLAY - 1;
/// Alpha for the tableau dim layer — 50 % opacity black. Dark enough
/// to visually separate the gameplay scene from the replay chrome
/// above it; light enough that card positions remain legible through
/// the scrim. Matches the mockup's "Game Peek Band at 50 % opacity"
/// spec in `docs/ui-mockups/replay-overlay-mobile.html`.
const TABLEAU_DIM_ALPHA: f32 = 0.5;
/// Total height of the banner in pixels. Thin enough to leave the
/// gameplay surface visible underneath, tall enough to comfortably fit
/// the headline-sized "▌ replay" label stacked above the
/// `TYPE_CAPTION` "GAME #YYYY-DDD" subtitle (the left column needs
/// ~26 + 2 + 11 = 39 px of inner content; banner = top row (59
/// flex-grow) + scrub track (1) + label row (16) + footer (16)
/// gives 92).
///
/// Growth history:
/// - 60 → 76 in the scrub-notch-labels commit to make room for the
/// `0%` / … / `100%` percentage labels under each notch.
/// - 76 → 92 in the keybind-footer commit to make room for the
/// vim-style mode line + keybind-hint footer at the bottom.
const BANNER_HEIGHT: f32 = 92.0;
/// Height of the label row that sits below the 1px scrub track and
/// carries the `0%` / `25%` / `50%` / `75%` / `100%` notch labels.
/// 16 px is enough for `TYPE_CAPTION` text (12 px font + 4 px breathing
/// room above the bottom edge).
const SCRUB_LABEL_ROW_HEIGHT: f32 = 16.0;
/// Height of the keybind-hint footer that sits below the notch-label
/// row. Carries a vim-style mode indicator on the left and a
/// keybind-hint on the right (`[SPACE] pause/resume`). 16 px matches
/// `SCRUB_LABEL_ROW_HEIGHT` for visual symmetry — `TYPE_CAPTION` text
/// (12 px) + 4 px breathing room.
const KEYBIND_FOOTER_HEIGHT: f32 = 16.0;
/// Fixed pixel width of the centred scrub-bar notch-label container.
/// Wide enough to hold the widest label ("100%" at 4 chars) while
/// narrower than the 25 % gap between adjacent notches (≈ banner_w
/// × 0.25; on a 320 px banner that's 80 px). A 36 px container
/// leaves ≥ 44 px of clearance on each side at the narrowest common
/// screen width.
///
/// Container width drives the `margin.left = -width / 2` centering
/// trick: the container's left edge is placed at `left: Percent(pct)`
/// and then shifted left by half its own width, so the container's
/// centre coincides with the notch line. `Justify::Center` then
/// renders the text centred within the container. This is the
/// CSS `translateX(-50%)` pattern adapted for Bevy 0.18 UI.
const SCRUB_LABEL_CENTER_WIDTH: f32 = 36.0;
/// How long a held arrow key waits before firing the next repeat
/// step. 100 ms = 10 steps/sec — fast enough to scrub through a
/// hundred-move replay in ~10 seconds while held, slow enough that
/// the player can release after a known number of steps. Initial
/// `just_pressed` always fires immediately; this interval gates
/// only the *repeat* fires while the key remains held.
const SCRUB_REPEAT_INTERVAL_SECS: f32 = 0.1;
/// Total height of the bottom-edge Move Log panel in pixels.
/// Sized for: header (`TYPE_CAPTION` 11) + 2 prev rows + active
/// row + 2 next rows (`TYPE_BODY` 14 each = 70) + row gaps (~10)
/// + vertical padding (~16) ≈ 107; round to 112.
///
/// Growth history:
/// - 56 in the move-log-panel-init commit (header + active row).
/// - 56 → 84 in the move-log-prev-rows commit (+ 2 prev rows).
/// - 84 → 112 in the move-log-next-rows commit (+ 2 next rows).
const MOVE_LOG_PANEL_HEIGHT: f32 = 112.0;
/// Number of "previous move" rows rendered above the active row
/// in the move-log panel. Tuned to fit the panel height comfortably
/// alongside the header + active row at `TYPE_BODY`. The active
/// row plus this many prev rows gives the player a 3-row window
/// onto recent move history.
const MOVE_LOG_PREV_ROWS: usize = 2;
/// Number of "next move" rows rendered below the active row.
/// Same logic as [`MOVE_LOG_PREV_ROWS`] — symmetric window
/// around the active row showing about-to-apply moves. For a
/// post-game replay these aren't spoilers (the game is already
/// won); for a future "live preview during play" use case the
/// preview-shape might need rethinking.
const MOVE_LOG_NEXT_ROWS: usize = 2;
/// Vertical offset from the top edge of the window to the top edge of the
/// mini-tableau preview panel. Places the panel 8 px below the banner's
/// bottom edge so the two surfaces don't overlap. Derived from
/// `BANNER_HEIGHT` so the gap stays consistent if the banner ever grows.
const MINI_TABLEAU_TOP_OFFSET: f32 = BANNER_HEIGHT + 8.0;
/// Background colour alpha for the banner. `BG_ELEVATED_HI` at this alpha
/// reads as a clear "this is a UI strip" callout while still letting the
/// felt show through enough to anchor the banner to the play surface.
const BANNER_ALPHA: f32 = 0.92;
// ---------------------------------------------------------------------------
// Marker components
// ---------------------------------------------------------------------------
/// Marker on the banner's root `Node`. Used by the spawn / despawn /
/// progress-update systems to find the overlay.
#[derive(Component, Debug)]
pub struct ReplayOverlayRoot;
/// Marker on the left-hand banner label `Text`. Carries either
/// "▌ replay" (during playback) or "▌ replay complete" (once
/// finished — the cursor-block prefix matches the splash boot-screen
/// idiom so the surface reads as a Terminal output line); the
/// completion-text-update system swaps the contents in place.
#[derive(Component, Debug)]
pub struct ReplayOverlayBannerText;
/// Marker on the centre progress `Text`. Updated every frame to reflect
/// the current `(cursor, total)` returned by
/// [`ReplayPlaybackState::progress`].
#[derive(Component, Debug)]
pub struct ReplayOverlayProgressText;
/// Marker on the **floating** progress chip — a 2D world-space text
/// entity rendered above the destination pile of the most-recently-
/// applied move. Sits independently of the banner overlay (which
/// lives in the UI tree and never moves) so the player can see
/// progress without breaking eye contact with the focal card.
///
/// Lifecycle matches the banner overlay: spawned by `spawn_overlay`
/// when a replay starts, despawned by `react_to_state_change` when
/// it ends. Position updated each frame by
/// `update_floating_progress_chip`. Hidden when cursor=0 (no moves
/// applied yet) or the last applied move was a `StockClick` (no
/// destination pile to follow).
#[derive(Component, Debug)]
pub struct ReplayFloatingProgressChip;
/// Marker on the right-hand "Stop" button. Click handler queries for this
/// and calls [`stop_replay_playback`] when an `Interaction::Pressed`
/// transition is seen.
#[derive(Component, Debug)]
pub struct ReplayStopButton;
/// Marker on the Pause / Resume button. Click handler queries for this
/// and calls [`toggle_pause_replay_playback`] on each press. The
/// button's label text is repainted in lockstep by
/// `update_pause_button_label` so it always reflects the action the
/// next click will perform ("Pause" while running, "Resume" while
/// paused).
#[derive(Component, Debug)]
pub struct ReplayPauseButton;
/// Marker on the Step button. Click handler queries for this and
/// calls [`step_replay_playback`] — only meaningful when paused
/// (clicks while running are no-ops because the tick loop would race
/// the manual advance). The button stays visually present but
/// unresponsive while the playback is running so the player has a
/// stable layout to scan.
#[derive(Component, Debug)]
pub struct ReplayStepButton;
/// Marker on the full-screen tableau dim layer spawned at the start of
/// every replay. The dim layer is a 100 % × 100 % `Node` at
/// [`Z_REPLAY_DIM`] (= `Z_REPLAY_OVERLAY - 1`) with a semi-transparent
/// black `BackgroundColor`. It darkens the card world so the replay
/// chrome reads clearly against it without obscuring card positions.
///
/// Carries no [`Interaction`] component — purely visual; pointer events
/// pass through to the underlying UI and world-space systems.
/// Despawned by `react_to_state_change` when the replay ends.
#[derive(Component, Debug)]
pub struct ReplayTableauDimLayer;
/// Marker on the small caption sitting below the "▌ replay"
/// headline. Carries `GAME #YYYY-DDD` (year + chrono ordinal) while a
/// replay is playing — a compact, monotonically-increasing identifier
/// that mirrors the `▌replay.tsx` / `GAME #2024-127` Terminal-output
/// motif from the mockup. The caption is empty in `Inactive` /
/// `Completed` since the replay is consumed when transitioning out
/// of `Playing` and the identifier is no longer recoverable from
/// state alone.
#[derive(Component, Debug)]
pub struct ReplayOverlayGameCaption;
/// Marker on the accent "fill" of the bottom-edge scrub bar. The
/// `Node`'s `width` is rewritten every frame the cursor advances to
/// `cursor / total` of the bar's full width, so the player has a
/// continuous visual cue of how far through the replay they are.
///
/// Distinct from the simpler text-based `ReplayOverlayProgressText`
/// (which spells out "MOVE N/M" in a chip): the scrub fill gives immediate
/// at-a-glance positioning; the text gives the exact numbers. Both
/// surfaces stay together because they answer the same question for
/// players with different scanning preferences.
#[derive(Component, Debug)]
pub struct ReplayOverlayScrubFill;
/// Marker for the WIN MOVE tick on the scrub bar — a small absolute-
/// positioned `Node` anchored at `replay.win_move_index / total` along
/// the track. Painted in [`STATE_SUCCESS`] so the player can see at a
/// glance where the winning move sits relative to the playback cursor.
///
/// Static — the position is set at spawn time and never changes during
/// playback (the underlying replay's `win_move_index` is immutable
/// while `Playing`). Despawned with the rest of the overlay tree when
/// the replay state transitions back to `Inactive`.
///
/// Spawned only when the active replay carries
/// [`Replay::win_move_index`](solitaire_data::Replay::win_move_index)
/// `= Some(_)` — older replays loaded from disk pre-date the field
/// and have no win index to surface.
#[derive(Component, Debug)]
pub struct ReplayOverlayWinMoveMarker;
/// Marker for the fixed-position notches on the scrub bar — five 1px
/// vertical ticks at 0 % / 25 % / 50 % / 75 % / 100 % that give the
/// player visual anchor points for "where am I, relative to the
/// quarter-marks of the replay." Mirrors the notch ladder in the
/// screen-takeover mockup at
/// `docs/ui-mockups/replay-overlay-mobile.html`.
///
/// Static — positions are set at spawn time and never change. The
/// notches paint in [`BORDER_SUBTLE`] which is the same colour as the
/// unfilled track, so visibility comes from extending the notch
/// **vertically past** the 1px track (5px tall, anchored 2px above
/// the track top) rather than from colour contrast. Same trick the
/// WIN MOVE marker uses.
#[derive(Component, Debug)]
pub struct ReplayOverlayScrubNotch;
/// Marker for the percentage labels under each scrub-bar notch
/// (`0%` / `25%` / `50%` / `75%` / `100%`). One label per notch;
/// labels live in a dedicated 16 px row below the 1 px scrub track
/// (the row that grew the banner from 60 → 76 px).
///
/// Positioning follows a "endpoints flush to edges, middle three
/// anchored at percentage" pattern: the leftmost label uses
/// `left: 0`, the rightmost uses `right: 0`, and the middle three
/// (`25%` / `50%` / `75%`) anchor at `left: Val::Percent(p)`. This
/// avoids overflow at 100 % without needing CSS-style
/// `translate-x: -50%` centering (which Bevy 0.18 UI doesn't have a
/// clean equivalent for) — the trade-off is a slight right-of-notch
/// offset on the middle three, which is visually subtle at the
/// `TYPE_CAPTION` font size.
#[derive(Component, Debug)]
pub struct ReplayOverlayScrubNotchLabel;
/// Marker on the keybind-hint footer row at the bottom edge of the
/// banner. Carries two `Text` children: a vim-style mode indicator
/// (`▌ NORMAL │ replay`) on the left and the keybind hint
/// (`[SPACE] pause/resume`) on the right. 1 px top border in
/// [`BORDER_SUBTLE`] separates it from the notch-label row above.
///
/// Surfaces the existing Space-key accelerator visually so the
/// UI-first contract from CLAUDE.md §3.3 (every player action has
/// a visible UI control) holds for keyboard accelerators too.
/// Future commits that wire ESC for stop or ← / → for scrub will
/// extend the right-hand text in lockstep — the footer always
/// reflects what's actually wired, never aspirational.
#[derive(Component, Debug)]
pub struct ReplayOverlayKeybindFooter;
/// Marker on the bottom-edge **Move Log** panel — a separate root
/// UI entity (not a child of the banner) that sits anchored to the
/// viewport's bottom edge. Carries a header (`▌ MOVE LOG · N/M`)
/// plus a row showing the most-recently-applied move.
///
/// Spawned by `spawn_overlay` alongside the banner and the
/// floating progress chip; despawned by `react_to_state_change`
/// on the same `Playing → Inactive` transition. Same lifecycle
/// pattern as `ReplayFloatingProgressChip` — a sibling root, not
/// a banner child, because it lives at a different screen anchor.
///
/// First slice of the move-log mockup at
/// `docs/ui-mockups/replay-overlay-mobile.html` § "Move Log Card".
/// Subsequent commits add prev/next rows and scrolling.
#[derive(Component, Debug)]
pub struct ReplayOverlayMoveLogPanel;
/// Marker on the move-log panel's header `Text`. Carries
/// `▌ MOVE LOG · N/M` while a replay is playing; the
/// `update_move_log_header` system repaints it as the cursor
/// advances.
#[derive(Component, Debug)]
pub struct ReplayOverlayMoveLogHeader;
/// Marker on the move-log panel's active-row `Text`. Carries the
/// most-recently-applied move's text (`47 │ waste → tableau 5`)
/// when `cursor > 0`; empty when no moves have been applied yet
/// (initial spawn) or in `Completed`/`Inactive` states. The
/// `update_move_log_active_row` system repaints it as the cursor
/// advances.
#[derive(Component, Debug)]
pub struct ReplayOverlayMoveLogActiveRow;
/// Marker on a "previous move" row above the active row.
/// `offset` is the 1-based distance backwards from the active
/// row: `offset = 1` is the move applied just before the active
/// one (e.g. cursor=47 → row reads "46 │ ..."), `offset = 2` is
/// the one before that, and so on. Up to [`MOVE_LOG_PREV_ROWS`]
/// rows render above the active row.
///
/// Empty text when there isn't enough history (`offset >= cursor`,
/// e.g. cursor=1 has no prev rows; cursor=2 has only the
/// `offset = 1` row populated).
#[derive(Component, Debug)]
pub struct ReplayOverlayMoveLogPrevRow {
/// Distance backwards from the active row (1-based).
pub offset: u8,
}
/// Marker on a "next move" row below the active row. `offset`
/// is the 1-based distance forward from the active row:
/// `offset = 1` is the move that will apply next
/// (`moves[cursor]`, displayed as `cursor + 1`),
/// `offset = 2` is the one after that, and so on. Up to
/// [`MOVE_LOG_NEXT_ROWS`] rows render below the active row.
///
/// Empty text when there isn't enough remaining replay
/// (`cursor + offset - 1 >= moves.len()`, e.g. cursor=99 of
/// a 100-move replay shows offset 1 but offset 2 stays empty).
#[derive(Component, Debug)]
pub struct ReplayOverlayMoveLogNextRow {
/// Distance forward from the active row (1-based).
pub offset: u8,
}
/// Marker added to every top-level entity spawned by [`spawn_overlay`].
/// `react_to_state_change` uses a single `Query<Entity, With<DespawnWithReplay>>`
/// to despawn all of them, rather than keeping a separate query per
/// entity type. Future sibling overlay surfaces just need this marker
/// at spawn time — no changes to the despawn logic required.
#[derive(Component, Debug)]
pub struct DespawnWithReplay;
/// Marker on the mini-tableau preview panel root. A right-edge-anchored
/// panel that shows a compact summary of the live game state during
/// replay: the four foundation tops and the stock / waste heads.
/// Spawned as a sibling root entity (same lifecycle pattern as
/// [`ReplayOverlayMoveLogPanel`]) at `right: 0`, `top: MINI_TABLEAU_TOP_OFFSET`.
#[derive(Component, Debug)]
pub struct ReplayMiniTableauPanel;
/// Marker on the foundations row `Text` inside the mini-tableau panel.
/// Carries `F: A♠ 7♥ 5♦ K♣` (or `--` for empty slots); repainted by
/// `update_mini_tableau` whenever [`GameStateResource`] changes.
#[derive(Component, Debug)]
pub struct ReplayMiniTableauFoundations;
/// Marker on the stock/waste row `Text` inside the mini-tableau panel.
/// Carries `STK:14 WST:7♥`; repainted by `update_mini_tableau` whenever
/// [`GameStateResource`] changes.
#[derive(Component, Debug)]
pub struct ReplayMiniTableauStockWaste;
// ---------------------------------------------------------------------------
// Plugin
// ---------------------------------------------------------------------------
/// Bevy plugin that registers every system needed to drive the replay
/// overlay's lifecycle.
///
/// The plugin is independent of [`crate::replay_playback::ReplayPlaybackPlugin`]
/// — it only reads the shared `ReplayPlaybackState` resource. Tests insert
/// the resource manually and exercise the overlay in isolation.
pub struct ReplayOverlayPlugin;
impl Plugin for ReplayOverlayPlugin {
fn build(&self, app: &mut App) {
// The systems are ordered so that, on a single frame:
// 1. The state-watcher spawns or despawns the overlay if the
// `ReplayPlaybackState` resource changed.
// 2. The completion-text update swaps the banner label when the
// state is `Completed`.
// 3. The progress-text update writes the latest "Move N of M".
// 4. The Stop-button click handler reads `Interaction::Pressed`
// and calls `stop_replay_playback` (which mutates the state).
// Putting Stop last means a click in frame N is observed by
// `react_to_state_change` in frame N+1, which then despawns the
// overlay in response — a clean state-driven loop.
// Step-button handler dispatches into the same canonical move
// / draw events that the tick loop fires. Register them
// defensively here so this plugin can run under
// `MinimalPlugins` without the playback plugin attached;
// `add_message` is idempotent so the duplicate registration
// in production (alongside `replay_playback`) is harmless.
app.init_resource::<ReplayScrubKeyHold>()
.add_message::<MoveRequestEvent>()
.add_message::<DrawRequestEvent>()
.add_message::<UndoRequestEvent>()
.add_message::<StateChangedEvent>()
.add_systems(
Update,
(
react_to_state_change,
update_banner_label,
update_progress_text,
update_floating_progress_chip,
update_scrub_fill,
update_move_log_header,
update_move_log_active_row,
update_move_log_prev_rows,
update_move_log_next_rows,
update_mini_tableau_foundations,
update_mini_tableau_stock_waste,
update_pause_button_label,
handle_pause_button,
handle_step_button,
handle_pause_keyboard,
handle_stop_keyboard,
handle_arrow_keyboard,
handle_stop_button,
)
.chain(),
);
}
}
// ---------------------------------------------------------------------------
// Spawning
// ---------------------------------------------------------------------------
/// Reads [`ReplayPlaybackState`] every time the resource changes and either
/// spawns or despawns the overlay accordingly. Treats the resource as the
/// single source of truth — the spawn / despawn decision is derived from
/// `is_playing() || is_completed()` rather than tracking previous-state
/// transitions explicitly, which keeps the system stateless.
fn react_to_state_change(
mut commands: Commands,
state: Res<ReplayPlaybackState>,
roots: Query<Entity, With<ReplayOverlayRoot>>,
despawnable: Query<Entity, With<DespawnWithReplay>>,
font_res: Option<Res<FontResource>>,
) {
if !state.is_changed() {
return;
}
let should_be_visible = state.is_playing() || state.is_completed();
let already_spawned = roots.iter().next().is_some();
if should_be_visible && !already_spawned {
spawn_overlay(&mut commands, font_res.as_deref(), &state);
} else if !should_be_visible && already_spawned {
// Despawn all sibling root entities in one loop — every entity
// spawned by `spawn_overlay` carries `DespawnWithReplay` for
// exactly this purpose.
for entity in &despawnable {
commands.entity(entity).despawn();
}
}
// The `should_be_visible && already_spawned` branch is a no-op here —
// the per-frame text update systems below repaint the banner label
// and progress readout in place without a respawn.
}
/// Spawns the banner — a flex-row Node anchored to the top edge of the
/// window with three children: the "▌ replay" / "▌ replay complete" label,
/// the centred progress text, and the right-aligned Stop button.
fn spawn_overlay(
commands: &mut Commands,
font_res: Option<&FontResource>,
state: &ReplayPlaybackState,
) {
let font_handle = font_res.map(|f| f.0.clone()).unwrap_or_default();
// Clone for the floating chip spawn that runs *after* the
// banner's `.with_children(|banner| { ... })` closure consumes
// the original `font_handle`. Cheap — Bevy's `Handle<Font>` is
// `Arc`-backed, the clone bumps a refcount.
let font_handle_for_floating = font_handle.clone();
// Second clone for the scrub-bar label row and keybind footer
// inside the outer banner closure. The inner top-row closure
// consumes the original `font_handle` for the progress-chip
// text, so by the time the outer closure reaches the
// label-row / footer spawns the original is gone.
// `font_handle_for_labels` is `.clone()`'d (never moved) inside
// the labels closure, so it's still alive for the footer
// spawn afterwards — single shared clone covers both.
let font_handle_for_labels = font_handle.clone();
// Third clone for the move-log panel — a separate root
// entity spawned after the banner closure closes. Mirrors the
// floating-chip clone reasoning.
let font_handle_for_move_log = font_handle.clone();
// Fourth clone for the mini-tableau preview panel.
let font_handle_for_mini_tableau = font_handle.clone();
let banner_label = if state.is_completed() {
"\u{258C} replay complete" // ▌ — cursor-block prefix; matches the splash boot-screen convention.
} else {
"\u{258C} replay" // ▌
};
let progress_label = format_progress(state);
// Tableau dim layer — full-screen scrim at z = Z_REPLAY_DIM (= 54).
// Spawned first so it sits behind the banner (z=55) and move-log (z=55)
// in the UI stacking context. World-space sprites (cards, badges) are
// always below any UI node, so the dim layer darkens the entire
// gameplay scene without needing to touch card_plugin. No Interaction
// component — purely visual.
commands.spawn((
ReplayTableauDimLayer,
DespawnWithReplay,
Node {
position_type: PositionType::Absolute,
left: Val::Px(0.0),
top: Val::Px(0.0),
width: Val::Percent(100.0),
height: Val::Percent(100.0),
..default()
},
BackgroundColor(Color::srgba(0.0, 0.0, 0.0, TABLEAU_DIM_ALPHA)),
ZIndex(Z_REPLAY_DIM),
GlobalZIndex(Z_REPLAY_DIM),
));
let banner_bg = Color::srgba(
BG_ELEVATED_HI.to_srgba().red,
BG_ELEVATED_HI.to_srgba().green,
BG_ELEVATED_HI.to_srgba().blue,
BANNER_ALPHA,
);
commands
.spawn((
ReplayOverlayRoot,
DespawnWithReplay,
Node {
position_type: PositionType::Absolute,
left: Val::Px(0.0),
top: Val::Px(0.0),
width: Val::Percent(100.0),
height: Val::Px(BANNER_HEIGHT),
// Column outer so the content row sits above the 1px
// scrub bar at the bottom edge.
flex_direction: FlexDirection::Column,
..default()
},
BackgroundColor(banner_bg),
// Pin the banner to its z layer in both the local and the
// global stacking context — `GlobalZIndex` matters because
// the overlay is a top-level Node (no parent), and Bevy 0.18
// has historically had subtle stacking-context drift here.
ZIndex(Z_REPLAY_OVERLAY),
GlobalZIndex(Z_REPLAY_OVERLAY),
))
.with_children(|banner| {
// Top row: the existing content (label / progress / Stop).
banner
.spawn(Node {
flex_grow: 1.0,
flex_direction: FlexDirection::Row,
align_items: AlignItems::Center,
justify_content: JustifyContent::SpaceBetween,
padding: UiRect::axes(VAL_SPACE_4, VAL_SPACE_2),
column_gap: VAL_SPACE_4,
..default()
})
.with_children(|row| {
// Left: column with the accent "▌ replay" headline
// above and a small `GAME #YYYY-DDD` caption below.
// The caption mirrors the mockup's right-anchored
// game identifier but stays visually grouped with
// the headline so the two pieces of "this is a
// replay of game X" read as a single unit.
row.spawn(Node {
flex_direction: FlexDirection::Column,
align_items: AlignItems::FlexStart,
row_gap: Val::Px(2.0),
..default()
})
.with_children(|left| {
left.spawn((
ReplayOverlayBannerText,
Text::new(banner_label),
TextFont {
font: font_handle.clone(),
font_size: TYPE_HEADLINE,
..default()
},
TextColor(ACCENT_PRIMARY),
));
left.spawn((
ReplayOverlayGameCaption,
Text::new(format_game_caption(state).unwrap_or_default()),
TextFont {
font: font_handle.clone(),
font_size: TYPE_CAPTION,
..default()
},
TextColor(TEXT_SECONDARY),
));
});
// Centre: progress readout, wrapped in a 1 px
// ACCENT_PRIMARY-bordered chip so it reads as a
// discrete callout rather than free-floating
// text. No fill — the Terminal aesthetic gets
// depth from borders + tonal layering, not
// shadows. The marker stays on the inner Text so
// `update_progress_text` keeps working unchanged.
row.spawn((
Node {
border: UiRect::all(Val::Px(1.0)),
padding: UiRect::axes(VAL_SPACE_2, VAL_SPACE_1),
..default()
},
BorderColor::all(ACCENT_PRIMARY),
))
.with_children(|chip| {
chip.spawn((
ReplayOverlayProgressText,
Text::new(progress_label),
TextFont {
font: font_handle,
font_size: TYPE_BODY,
..default()
},
TextColor(TEXT_PRIMARY),
));
});
// Right: Stop button. Tertiary variant — the
// action is available but not the loudest element
// in the banner; the "Replay" primary accent owns
// that slot. `spawn_modal_button` gives us hover /
// press paint and focus rings for free via the
// existing `UiModalPlugin` paint system.
row.spawn(Node {
flex_direction: FlexDirection::Row,
align_items: AlignItems::Center,
column_gap: VAL_SPACE_2,
..default()
})
.with_children(|wrap| {
// Pause / Resume label is set from the current
// state so a freshly-spawned overlay (which
// currently always starts unpaused) reads
// "Pause". `update_pause_button_label`
// repaints it whenever the state changes.
spawn_modal_button(
wrap,
ReplayPauseButton,
pause_button_label(state),
None,
ButtonVariant::Tertiary,
font_res,
);
spawn_modal_button(
wrap,
ReplayStepButton,
"Step",
None,
ButtonVariant::Tertiary,
font_res,
);
spawn_modal_button(
wrap,
ReplayStopButton,
"Stop",
None,
ButtonVariant::Tertiary,
font_res,
);
});
});
// Bottom edge: 1px-tall scrub bar. Track in `BORDER_SUBTLE`,
// fill in `ACCENT_PRIMARY`. The fill width is rewritten by
// [`update_scrub_fill`] every tick the cursor advances.
// Initial fill width matches the spawn-time progress so the
// first-frame paint already reflects state instead of
// popping from 0 → cursor on the first tick.
let initial_scrub_pct = scrub_pct(state);
let win_pct = win_move_marker_pct(state);
banner
.spawn((
Node {
width: Val::Percent(100.0),
height: Val::Px(1.0),
..default()
},
BackgroundColor(BORDER_SUBTLE),
// HC marker: bumps the 1 px track from #505050
// → #a0a0a0 under high-contrast mode. The track
// paints via BackgroundColor (it's a 1 px Node,
// not a border on a wider container) so the
// BorderColor-targeting HighContrastBorder marker
// doesn't apply — HighContrastBackground is the
// parallel primitive for this case.
HighContrastBackground::with_default(BORDER_SUBTLE),
))
.with_children(|track| {
track.spawn((
ReplayOverlayScrubFill,
Node {
width: Val::Percent(initial_scrub_pct),
height: Val::Percent(100.0),
..default()
},
BackgroundColor(ACCENT_PRIMARY),
));
// WIN MOVE marker — small green tick anchored at
// `win_move_index / total`. Spawned only when the
// active replay carries the field; older replays
// pre-dating `win_move_index` simply don't get a
// marker. Centered vertically on the 1px track via
// a 3px-tall node offset 1px above the track top so
// 1px sits above and 1px below the track line.
if let Some(pct) = win_pct {
track.spawn((
ReplayOverlayWinMoveMarker,
Node {
position_type: PositionType::Absolute,
left: Val::Percent(pct),
top: Val::Px(-1.0),
width: Val::Px(2.0),
height: Val::Px(3.0),
..default()
},
BackgroundColor(STATE_SUCCESS),
// HC bump: lime → brighter lime so the win
// marker reads clearly above the bumped
// notch ticks (BORDER_SUBTLE_HC gray) under
// high-contrast mode.
HighContrastBackground::with_hc(STATE_SUCCESS, STATE_SUCCESS_HC),
));
}
// Fixed quarter-mark notches: five 1px vertical
// ticks at 0 / 25 / 50 / 75 / 100 % that give the
// player visual anchor points without needing to
// mentally bisect the bar. Painted in
// BORDER_SUBTLE — same colour as the unfilled
// track — so visibility comes from extending past
// the 1px track height (5px tall, anchored 2px
// above the track top) rather than colour
// contrast. Spawned *after* the WIN MOVE marker
// so a notch and the marker landing on the same
// percentage paint the marker on top.
for pct in scrub_notch_positions() {
track.spawn((
ReplayOverlayScrubNotch,
Node {
position_type: PositionType::Absolute,
left: Val::Percent(pct),
top: Val::Px(-2.0),
width: Val::Px(1.0),
height: Val::Px(5.0),
..default()
},
BackgroundColor(BORDER_SUBTLE),
// Same HC-paint reasoning as the track
// above: 5 px tall × 1 px wide tick mark
// paints via BackgroundColor, so
// HighContrastBackground (not -Border) is
// the right marker.
HighContrastBackground::with_default(BORDER_SUBTLE),
));
}
});
// Third banner row: percentage labels (`0%` / `25%` /
// `50%` / `75%` / `100%`) under each scrub-bar notch.
// Sibling of (not child of) the 1px track because labels
// need their own vertical real estate (TYPE_CAPTION text
// doesn't fit inside a 1px container). Position math:
// track Node has `Val::Percent(p)` referencing the
// banner's full width; this label row also has the
// banner's full width, so labels at the same
// percentages line up vertically with their notches.
let labels = scrub_notch_labels();
let positions = scrub_notch_positions();
banner
.spawn(Node {
width: Val::Percent(100.0),
height: Val::Px(SCRUB_LABEL_ROW_HEIGHT),
position_type: PositionType::Relative,
..default()
})
.with_children(|row| {
for (i, (label, pct)) in labels.iter().zip(positions.iter()).enumerate() {
// Endpoints flush to the row's edges; middle
// three labels use the `translateX(-50%)`
// pattern for Bevy 0.18 UI: a fixed-width
// container is placed at `left: Percent(pct)`
// then shifted left by half its own width via
// `margin.left: Px(-SCRUB_LABEL_CENTER_WIDTH/2)`.
// `Justify::Center` renders the text centred
// within the container so the text's visual
// centre coincides with the notch line.
let (node, justify) = if i == 0 {
(
Node {
position_type: PositionType::Absolute,
top: Val::Px(2.0),
left: Val::Px(0.0),
..default()
},
Justify::Left,
)
} else if i == labels.len() - 1 {
(
Node {
position_type: PositionType::Absolute,
top: Val::Px(2.0),
right: Val::Px(0.0),
..default()
},
Justify::Right,
)
} else {
(
Node {
position_type: PositionType::Absolute,
top: Val::Px(2.0),
left: Val::Percent(*pct),
width: Val::Px(SCRUB_LABEL_CENTER_WIDTH),
margin: UiRect {
left: Val::Px(-SCRUB_LABEL_CENTER_WIDTH / 2.0),
..default()
},
..default()
},
Justify::Center,
)
};
row.spawn((
ReplayOverlayScrubNotchLabel,
node,
Text::new(*label),
TextLayout::new_with_justify(justify),
TextFont {
font: font_handle_for_labels.clone(),
font_size: TYPE_CAPTION,
..default()
},
// TEXT_SECONDARY keeps the subdued visual
// hierarchy (caption, not headline) while
// staying readable against BG_ELEVATED_HI.
TextColor(TEXT_SECONDARY),
));
}
});
// Fourth banner row: keybind-hint footer. Vim-style
// mode line on the left (`▌ NORMAL │ replay`), keybind
// hint on the right (`[SPACE] pause/resume`), 1px top
// border in BORDER_SUBTLE separating it from the
// labels row above. Surfaces the existing Space
// accelerator visually so CLAUDE.md §3.3's UI-first
// contract holds for keyboard accelerators too.
banner
.spawn((
ReplayOverlayKeybindFooter,
Node {
width: Val::Percent(100.0),
height: Val::Px(KEYBIND_FOOTER_HEIGHT),
flex_direction: FlexDirection::Row,
justify_content: JustifyContent::SpaceBetween,
align_items: AlignItems::Center,
padding: UiRect::horizontal(VAL_SPACE_4),
border: UiRect::top(Val::Px(1.0)),
..default()
},
BorderColor::all(BORDER_SUBTLE),
// Marker for `apply_high_contrast_borders`: bumps
// the 1 px top border from BORDER_SUBTLE (#505050)
// to BORDER_SUBTLE_HC (#a0a0a0) when
// `Settings::high_contrast_mode` is on. Without
// this the footer reads as floating loose under
// HC because the border that visually anchors it
// to the labels row above is near-invisible.
HighContrastBorder::with_default(BORDER_SUBTLE),
))
.with_children(|footer| {
footer.spawn((
Text::new(keybind_footer_mode_text()),
TextFont {
font: font_handle_for_labels.clone(),
font_size: TYPE_CAPTION,
..default()
},
TextColor(TEXT_SECONDARY),
));
if SHOW_KEYBOARD_ACCELERATORS {
footer.spawn((
Text::new(keybind_footer_hint_text()),
TextFont {
font: font_handle_for_labels.clone(),
font_size: TYPE_CAPTION,
..default()
},
TextColor(TEXT_SECONDARY),
));
}
});
});
// Floating progress chip — a 2D world-space `Text2d` rendered
// above the destination pile of the most-recently-applied move.
// Sibling of (not child of) the banner overlay because it lives
// in world-space coordinates, not the UI tree. Spawned hidden;
// `update_floating_progress_chip` shows + positions it on the
// first frame the cursor advances past 0. Lifecycle matches
// the banner overlay — `react_to_state_change` despawns both
// when the replay state transitions back to `Inactive`.
commands.spawn((
ReplayFloatingProgressChip,
DespawnWithReplay,
Text2d::new(format_progress(state)),
TextFont {
font: font_handle_for_floating,
font_size: TYPE_BODY,
..default()
},
TextColor(TEXT_PRIMARY),
// High Z keeps the chip above every card stack
// (Z_DROP_OVERLAY = 50, Z_STOCK_BADGE = 30, regular cards
// stack to the low double digits at most).
Transform::from_xyz(0.0, 0.0, 100.0),
Visibility::Hidden,
));
// Move-log panel — a separate root UI entity anchored to the
// viewport's bottom edge. Carries a `▌ MOVE LOG · N/M` header
// plus a row showing the most-recently-applied move.
// Sibling-of-banner pattern (not a banner child) because the
// panel lives at a different screen anchor and has its own
// spawn/despawn lifecycle synced via `react_to_state_change`.
let banner_bg = Color::srgba(
BG_ELEVATED_HI.to_srgba().red,
BG_ELEVATED_HI.to_srgba().green,
BG_ELEVATED_HI.to_srgba().blue,
BANNER_ALPHA,
);
commands
.spawn((
ReplayOverlayMoveLogPanel,
DespawnWithReplay,
Node {
position_type: PositionType::Absolute,
left: Val::Px(0.0),
bottom: Val::Px(0.0),
width: Val::Percent(100.0),
height: Val::Px(MOVE_LOG_PANEL_HEIGHT),
flex_direction: FlexDirection::Column,
align_items: AlignItems::FlexStart,
justify_content: JustifyContent::Center,
padding: UiRect::axes(VAL_SPACE_4, VAL_SPACE_2),
row_gap: VAL_SPACE_1,
border: UiRect::top(Val::Px(1.0)),
..default()
},
BackgroundColor(banner_bg),
BorderColor::all(BORDER_SUBTLE),
// Same z-stack rationale as the banner — above gameplay,
// below modals.
ZIndex(Z_REPLAY_OVERLAY),
GlobalZIndex(Z_REPLAY_OVERLAY),
// HC marker so the top border bumps under HC mode.
// Without it the panel reads as floating loose because
// the border that anchors it to the gameplay area above
// is near-invisible at #505050.
HighContrastBorder::with_default(BORDER_SUBTLE),
))
.with_children(|panel| {
// Header row: `▌ MOVE LOG · N/M` in ACCENT_PRIMARY for
// the cursor-block prefix consistency with the banner
// headline.
panel.spawn((
ReplayOverlayMoveLogHeader,
Text::new(format_move_log_header(state)),
TextFont {
font: font_handle_for_move_log.clone(),
font_size: TYPE_CAPTION,
..default()
},
TextColor(ACCENT_PRIMARY),
));
// Prev rows — render above the active row in display
// order (oldest first), so the active row sits at the
// bottom of the visible window. Spawn from
// MOVE_LOG_PREV_ROWS down to 1 (offset 2, then 1) so
// the highest-offset (oldest) row is topmost in the
// panel's flex column. Each carries
// ReplayOverlayMoveLogPrevRow { offset } — the
// per-frame system reads `offset` and recomputes the
// text on cursor advance. Painted in TEXT_SECONDARY
// so the active row stands out from context rows.
for offset in (1..=MOVE_LOG_PREV_ROWS as u8).rev() {
panel.spawn((
ReplayOverlayMoveLogPrevRow { offset },
Text::new(format_kth_recent_row(state, offset as usize + 1)),
TextFont {
font: font_handle_for_move_log.clone(),
font_size: TYPE_BODY,
..default()
},
TextColor(TEXT_SECONDARY),
));
}
// Active move row. Wrapped in a Node with an
// ACCENT_PRIMARY background so the row reads as
// "current focus" — the player can scan vertically
// and the highlighted row is the move that just
// applied. Empty text at spawn time when cursor=0;
// the per-frame update system populates it as the
// cursor advances. Text colour is TEXT_PRIMARY_HC
// (near-white) for contrast against the brick-red
// background — same trick as the modal-button
// primary-variant paint.
panel
.spawn((
Node {
width: Val::Percent(100.0),
padding: UiRect::axes(VAL_SPACE_2, VAL_SPACE_1),
..default()
},
BackgroundColor(ACCENT_PRIMARY),
))
.with_children(|active| {
active.spawn((
ReplayOverlayMoveLogActiveRow,
Text::new(format_active_move_row(state)),
TextFont {
font: font_handle_for_move_log.clone(),
font_size: TYPE_BODY,
..default()
},
TextColor(TEXT_PRIMARY_HC),
));
});
// Next rows — render below the active row in display
// order (offset 1 directly below active, then offset
// 2). Same TEXT_SECONDARY de-emphasis as prev rows so
// the active row stays the focal point. Empty text
// late in the replay (when cursor + offset exceeds
// moves.len()) — the panel under-fills gracefully.
for offset in 1..=MOVE_LOG_NEXT_ROWS as u8 {
panel.spawn((
ReplayOverlayMoveLogNextRow { offset },
Text::new(format_kth_next_row(state, offset as usize)),
TextFont {
font: font_handle_for_move_log.clone(),
font_size: TYPE_BODY,
..default()
},
TextColor(TEXT_SECONDARY),
));
}
});
// Mini-tableau preview panel — right-edge anchor, just below the banner.
// Compact two-row readout: foundation tops then stock/waste head.
// Sibling-of-banner pattern (separate root entity, own spawn/despawn).
let banner_bg = Color::srgba(
BG_ELEVATED_HI.to_srgba().red,
BG_ELEVATED_HI.to_srgba().green,
BG_ELEVATED_HI.to_srgba().blue,
BANNER_ALPHA,
);
commands
.spawn((
ReplayMiniTableauPanel,
DespawnWithReplay,
Node {
position_type: PositionType::Absolute,
right: Val::Px(0.0),
top: Val::Px(MINI_TABLEAU_TOP_OFFSET),
padding: UiRect::axes(VAL_SPACE_2, VAL_SPACE_2),
flex_direction: FlexDirection::Column,
align_items: AlignItems::FlexStart,
row_gap: VAL_SPACE_1,
border: UiRect::left(Val::Px(1.0)),
..default()
},
BackgroundColor(banner_bg),
BorderColor::all(BORDER_SUBTLE),
ZIndex(Z_REPLAY_OVERLAY),
GlobalZIndex(Z_REPLAY_OVERLAY),
HighContrastBorder::with_default(BORDER_SUBTLE),
))
.with_children(|panel| {
panel.spawn((
Text::new("\u{258C} BOARD"),
TextFont {
font: font_handle_for_mini_tableau.clone(),
font_size: TYPE_CAPTION,
..default()
},
TextColor(ACCENT_PRIMARY),
));
panel.spawn((
ReplayMiniTableauFoundations,
Text::new("F: -- -- -- --"),
TextFont {
font: font_handle_for_mini_tableau.clone(),
font_size: TYPE_CAPTION,
..default()
},
TextColor(TEXT_PRIMARY),
));
panel.spawn((
ReplayMiniTableauStockWaste,
Text::new("STK:-- WST:--"),
TextFont {
font: font_handle_for_mini_tableau,
font_size: TYPE_CAPTION,
..default()
},
TextColor(TEXT_SECONDARY),
));
});
}
/// Pure helper — returns the scrub-fill width as a percentage of the
/// track for the given playback state. `Completed` reads as 100 %;
/// `Inactive` and `Playing` with no progress read as 0 %.
fn scrub_pct(state: &ReplayPlaybackState) -> f32 {
if state.is_completed() {
return 100.0;
}
match state.progress() {
Some((_, 0)) | None => 0.0,
Some((cursor, total)) => {
let frac = (cursor as f32 / total as f32).clamp(0.0, 1.0);
frac * 100.0
}
}
}
/// Pure helper — returns the fixed scrub-bar notch positions as
/// percentages along the track. Five evenly-spaced notches at the
/// quarter-marks: `[0, 25, 50, 75, 100]`. Function (rather than
/// const) so the unit-test surface is obvious and a future
/// regression — e.g. someone simplifying to three notches — fails
/// at the helper test rather than at visual review.
fn scrub_notch_positions() -> [f32; 5] {
[0.0, 25.0, 50.0, 75.0, 100.0]
}
/// Pure helper — returns the percentage-label text for each notch,
/// in left-to-right order. Paired with [`scrub_notch_positions`] so
/// `labels[i]` belongs at `positions[i]`. Lifted to a function for
/// the same reason as the positions helper: a clean unit-test
/// surface that fails at a regression (e.g. someone simplifying
/// `100%` → `MAX`) rather than at visual review.
fn scrub_notch_labels() -> [&'static str; 5] {
["0%", "25%", "50%", "75%", "100%"]
}
/// Pure helper — returns the vim-style mode indicator text shown on
/// the left side of the keybind-hint footer row. `▌ NORMAL │ replay`
/// matches the `▌replay.tsx` motif from the splash boot-screen and
/// the screen-takeover mockup. The cursor block (`▌`) matches the
/// banner-label prefix; "NORMAL" is the vim mode (mockup parity);
/// "replay" identifies the surface.
fn keybind_footer_mode_text() -> &'static str {
"\u{258C} NORMAL \u{2502} replay" // ▌ NORMAL │ replay
}
/// Pure helper — returns the keybind-hint text shown on the right
/// side of the keybind-hint footer row. Lists only the keys that
/// are *actually wired* today: the Space accelerator for
/// pause/resume, the ESC accelerator for stop, and the ← / →
/// accelerators for paused single-move stepping. The footer never
/// lists unimplemented keybinds (would lie to users).
fn keybind_footer_hint_text() -> &'static str {
if SHOW_KEYBOARD_ACCELERATORS {
"[SPACE] pause/resume \u{00B7} [ESC] stop \u{00B7} [\u{2190}\u{2192}] step" // · separator
} else {
""
}
}
/// Pure helper — returns the WIN MOVE marker's left-edge position as
/// a percentage of the scrub track, or `None` when no marker should
/// be drawn.
///
/// `None` is returned in any of these cases:
/// - The state isn't `Playing` (no replay attached).
/// - The replay's `win_move_index` is `None` (older replay loaded
/// from disk pre-dating the field).
/// - The replay's move list is empty (shouldn't happen for real wins,
/// but guards the divide-by-zero).
///
/// The percentage clamps to `[0, 100]` so a malformed
/// `win_move_index >= total` (defensive — shouldn't happen) doesn't
/// position the marker outside the track.
fn win_move_marker_pct(state: &ReplayPlaybackState) -> Option<f32> {
let ReplayPlaybackState::Playing { replay, moves, .. } = state else {
return None;
};
let idx = replay.win_move_index?;
let total = moves.len();
if total == 0 {
return None;
}
let frac = (idx as f32 / total as f32).clamp(0.0, 1.0);
Some(frac * 100.0)
}