AFTERGLOW

seats/presentation/hall_timeline.dart

final class HallTimeline {  const HallTimeline(this.seconds);  static const duration = 2.0;  static const _struckAt = 0.22;  static const _chosenAt = 1.32;  final double seconds;  /// Brightness of the cinema screen.  double get screen => seconds < _struckAt      ? 0.1      : mix(0.1, 1, ProjectorFlicker.at(seconds - _struckAt));  double get spill => Ease.outCubic(progress(seconds, 0.4, 1.1));

10final class HallTimeline {11  const HallTimeline(this.seconds);1213  static const duration = 2.0;14  static const _struckAt = 0.22;15  static const _chosenAt = 1.32;1617  final double seconds;1819  /// Brightness of the cinema screen.20  double get screen => seconds < _struckAt21      ? 0.122      : mix(0.1, 1, ProjectorFlicker.at(seconds - _struckAt));2324  double get spill => Ease.outCubic(progress(seconds, 0.4, 1.1));2526  /// How far [seat] has risen, from 0 to 1.27  double seatRise(Seat seat, {required bool chosen}) {28    if (chosen) return Ease.outCubic(progress(seconds, _chosenAt, 1.6));29    final fromCentre = (seat.number - 5.5).abs();30    final start = 0.48 + seat.row * 0.05 + fromCentre * 0.018;31    return Ease.outCubic(progress(seconds, start, start + 0.36));