feat(ui): floating pulse hint for booster targeting

Replaces the plain bottom SnackBar with a BoosterHint pill that floats in
the empty space above the board: season-accent coloured, a breathing glow
that pulses only while armed (idle otherwise — no wasted ticker), slides/
fades in, shows the booster icon + prompt, and cancels on tap. 3 widget
tests; full suite 234 green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-06-18 20:53:52 +09:00
parent 42deeaf242
commit 410182cf7d
3 changed files with 252 additions and 35 deletions
+49 -35
View File
@@ -16,6 +16,7 @@ import '../widgets/board_geometry.dart';
import '../widgets/board_painter.dart';
import '../widgets/board_widget.dart';
import '../widgets/booster_bar.dart';
import '../widgets/booster_hint.dart';
import '../widgets/effects_overlay.dart';
import '../widgets/hud_widget.dart';
import '../widgets/piece_painter.dart';
@@ -143,18 +144,9 @@ class _GameScreenState extends ConsumerState<GameScreen>
await ref.read(gameSessionProvider.notifier).useShuffle();
return;
}
// hammer / lineBomb need a board target.
// hammer / lineBomb need a board target; the floating BoosterHint above
// the board shows the prompt (and lets the player cancel) while armed.
setState(() => _arming = type);
final l10n = AppLocalizations.of(context)!;
final hint =
type == BoosterType.hammer ? l10n.boosterTapTarget : l10n.boosterTapLine;
if (!mounted) return;
ScaffoldMessenger.of(context)
..hideCurrentSnackBar()
..showSnackBar(SnackBar(
content: Text(hint),
duration: const Duration(seconds: 3),
));
}
/// Converts a board tap into a cell, then applies the armed booster.
@@ -410,32 +402,54 @@ class _GameScreenState extends ConsumerState<GameScreen>
),
HudWidget(view: view),
Expanded(
child: Center(
child: AnimatedBuilder(
animation: _shake,
builder: (context, child) {
final t = _shake.value;
final dx =
math.sin(t * math.pi * 10) * 6 * (1 - t);
return Transform.translate(
offset: Offset(dx, 0), child: child);
},
// While a targeted booster is armed, taps on the
// board pick a cell. When not arming, onTapUp
// returns immediately so it never steals the
// tray-drag placement gestures.
child: GestureDetector(
behavior: HitTestBehavior.deferToChild,
onTapUp: _arming == null
? null
: (details) => _onBoardTapUp(details),
child: BoardWidget(
key: _boardKey,
view: view,
ghost: ghost,
child: Stack(
children: [
Positioned.fill(
child: Center(
child: AnimatedBuilder(
animation: _shake,
builder: (context, child) {
final t = _shake.value;
final dx = math.sin(t * math.pi * 10) *
6 *
(1 - t);
return Transform.translate(
offset: Offset(dx, 0), child: child);
},
// While a targeted booster is armed, taps on
// the board pick a cell. When not arming,
// onTapUp returns immediately so it never
// steals the tray-drag placement gestures.
child: GestureDetector(
behavior: HitTestBehavior.deferToChild,
onTapUp: _arming == null
? null
: (details) => _onBoardTapUp(details),
child: BoardWidget(
key: _boardKey,
view: view,
ghost: ghost,
),
),
),
),
),
),
// Floating targeting prompt, in the empty space above
// the centered board so it never covers cells.
Positioned(
top: 4,
left: 0,
right: 0,
child: Center(
child: BoosterHint(
arming: _arming,
accent: ThemeColors(theme).accent,
onCancel: () =>
setState(() => _arming = null),
),
),
),
],
),
),
TrayWidget(
+149
View File
@@ -0,0 +1,149 @@
// lib/ui/widgets/booster_hint.dart
import 'package:flutter/material.dart';
import '../../game/models/booster.dart';
import '../../l10n/gen/app_localizations.dart';
/// A small floating pill that appears above the board while a targeted booster
/// (hammer / line-bomb) is armed, telling the player what to tap. Glows with a
/// gentle pulse in the season accent colour, slides/scales in, and cancels the
/// armed state when tapped. Renders (invisibly, ignoring pointer) when nothing
/// is armed so it can animate in/out in place without layout jumps.
class BoosterHint extends StatefulWidget {
const BoosterHint({
super.key,
required this.arming,
required this.accent,
required this.onCancel,
});
final BoosterType? arming;
final Color accent;
final VoidCallback onCancel;
@override
State<BoosterHint> createState() => _BoosterHintState();
}
class _BoosterHintState extends State<BoosterHint>
with SingleTickerProviderStateMixin {
late final AnimationController _pulse = AnimationController(
vsync: this,
duration: const Duration(milliseconds: 1100),
);
static const _icons = {
BoosterType.hammer: Icons.gavel,
BoosterType.shuffle: Icons.shuffle,
BoosterType.lineBomb: Icons.clear_all,
};
@override
void initState() {
super.initState();
_syncPulse();
}
@override
void didUpdateWidget(BoosterHint oldWidget) {
super.didUpdateWidget(oldWidget);
_syncPulse();
}
/// Pulse only while a booster is armed — idle (no live ticker) otherwise, so
/// it never spins during normal play or pins a timer open in widget tests.
void _syncPulse() {
if (widget.arming != null) {
if (!_pulse.isAnimating) _pulse.repeat(reverse: true);
} else if (_pulse.isAnimating) {
_pulse
..stop()
..value = 0;
}
}
@override
void dispose() {
_pulse.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final arming = widget.arming;
final visible = arming != null;
final l10n = AppLocalizations.of(context)!;
final label = arming == BoosterType.lineBomb
? l10n.boosterTapLine
: l10n.boosterTapTarget;
final accent = widget.accent;
return IgnorePointer(
ignoring: !visible,
child: AnimatedOpacity(
opacity: visible ? 1 : 0,
duration: const Duration(milliseconds: 160),
child: AnimatedSlide(
offset: visible ? Offset.zero : const Offset(0, -0.4),
duration: const Duration(milliseconds: 220),
curve: Curves.easeOutBack,
child: GestureDetector(
onTap: widget.onCancel,
child: AnimatedBuilder(
animation: _pulse,
builder: (context, child) {
final t = _pulse.value; // 0..1, breathing
return Container(
decoration: BoxDecoration(
color: accent,
borderRadius: BorderRadius.circular(999),
boxShadow: [
BoxShadow(
color: accent.withValues(alpha: 0.22 + 0.28 * t),
blurRadius: 10 + 12 * t,
spreadRadius: 1 + 3 * t,
),
],
),
child: child,
);
},
child: Padding(
padding: const EdgeInsets.fromLTRB(7, 6, 12, 6),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Container(
width: 26,
height: 26,
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.22),
shape: BoxShape.circle,
),
child: Icon(
_icons[arming ?? BoosterType.hammer],
size: 16,
color: Colors.white,
),
),
const SizedBox(width: 8),
Text(
label,
style: const TextStyle(
color: Colors.white,
fontSize: 13,
fontWeight: FontWeight.w600,
),
),
const SizedBox(width: 8),
const Icon(Icons.close, size: 16, color: Colors.white70),
],
),
),
),
),
),
),
);
}
}
+54
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@@ -0,0 +1,54 @@
import 'package:block_seasons/game/models/booster.dart';
import 'package:block_seasons/l10n/gen/app_localizations.dart';
import 'package:block_seasons/ui/widgets/booster_hint.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
Widget wrap(Widget child) => MaterialApp(
locale: const Locale('en'),
localizationsDelegates: AppLocalizations.localizationsDelegates,
supportedLocales: AppLocalizations.supportedLocales,
home: Scaffold(body: Center(child: child)),
);
testWidgets('shows the cell hint for hammer and cancels on tap',
(tester) async {
var cancelled = false;
await tester.pumpWidget(wrap(BoosterHint(
arming: BoosterType.hammer,
accent: const Color(0xFF5B7FFF),
onCancel: () => cancelled = true,
)));
await tester.pump(const Duration(milliseconds: 250)); // settle entrance
expect(find.text('Tap a cell'), findsOneWidget);
await tester.tap(find.byType(BoosterHint));
expect(cancelled, isTrue);
});
testWidgets('shows the line hint for the line bomb', (tester) async {
await tester.pumpWidget(wrap(BoosterHint(
arming: BoosterType.lineBomb,
accent: const Color(0xFF5B7FFF),
onCancel: () {},
)));
await tester.pump(const Duration(milliseconds: 250));
expect(find.text('Tap a row or column'), findsOneWidget);
});
testWidgets('ignores taps when nothing is armed', (tester) async {
var cancelled = false;
await tester.pumpWidget(wrap(BoosterHint(
arming: null,
accent: const Color(0xFF5B7FFF),
onCancel: () => cancelled = true,
)));
await tester.pump(const Duration(milliseconds: 250));
await tester.tap(find.byType(BoosterHint), warnIfMissed: false);
expect(cancelled, isFalse);
});
}