getAnimations method

@override List<CharacterAnimation> getAnimations(double progress, int charCount)

Generates per-character clip reveal and color highlight from scan head.

Implementation

@override
List<CharacterAnimation> getAnimations(double progress, int charCount) {
  if (charCount == 0) return [];

  final curved = applyCurve(progress);

  return List.generate(charCount, (index) {
    final scanPos = curved * charCount;
    final lastRevealed = scanPos - 1;
    final maxDist = (charCount - 1).clamp(1, charCount);
    final dist = lastRevealed >= 0
        ? (index - lastRevealed).abs() / maxDist
        : double.infinity;

    Color? color;
    if (dist < glowWidth) {
      final intensity = (1.0 - dist / glowWidth).clamp(0.0, 1.0);
      if (dist < scanWidth) {
        color = scanColor.withValues(alpha: 0.8 + intensity * 0.2);
      } else {
        color = scanColor.withValues(alpha: intensity * 0.3);
      }
    }

    return CharacterAnimation(
      clipProgress: index < scanPos.ceil() ? 1.0 : 0.0,
      color: color,
    );
  });
}