SparkleTwinkleEffect class

Random sparkle highlights appear on individual characters.

Uses deterministic noise to trigger random sparkle events with scale, color tint, and blur on selected characters.

Inheritance

Constructors

SparkleTwinkleEffect({Duration duration = const Duration(milliseconds: 2500), Curve curve = Curves.easeInOut, Color sparkleColor = Colors.amber, double sparkleScale = 1.4, double sparkleBlur = 4.0, Duration delayBetweenChars = Duration.zero}): Creates a sparkle/twinkle animation effect.
const

curve → Curve: Curve applied to the animation timing for easing.
finalinherited
delayBetweenChars → Duration: Delay between each successive character's animation start.
finalinherited
duration → Duration: Total duration of one full animation cycle for a single character.
finalinherited
hashCode → int: The hash code for this object.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
sparkleBlur → double: Gaussian blur applied during the sparkle.
final
sparkleColor → Color: Color of the sparkle highlight.
final
sparkleScale → double: Scale factor applied during a sparkle (1.0 = no change).
final

applyCurve(double t) → double: Applies the effect's curve to a linear value t (0.0–1.0).
inherited
getAnimations(double progress, int charCount) → List<CharacterAnimation>: Generates per-character random sparkle events using noise.
override
getTotalDuration(int charCount) → Duration: Returns the total duration needed to animate all charCount characters.
override
noise(int index, [int offset = 0]) → double: Returns a deterministic pseudo-random value (0.0–1.0) for the given index and optional offset.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
staggeredProgress(double globalProgress, int index, int charCount) → double: Computes the per-character progress for staggered animations.
inherited
toString() → String: A string representation of this object.
inherited