NeonFlickerEffect class
Simulates a flickering neon sign with random glow and blur.
Uses multi-frequency noise to create irregular flicker patterns, alternating between baseColor and glowColor with blur.
- Inheritance
-
- Object
- TextEffect
- NeonFlickerEffect
Constructors
- NeonFlickerEffect({Duration duration = const Duration(milliseconds: 2000), Curve curve = Curves.linear, Color baseColor = Colors.cyan, Color glowColor = Colors.cyan, double blurSigma = 6.0, int flickerSeed = 42, Duration delayBetweenChars = Duration.zero})
-
Creates a neon flicker animation with random timing.
const
Properties
- baseColor → Color
-
Base (dim) color of the neon text.
final
- blurSigma → double
-
Gaussian blur sigma applied when glowing.
final
- 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
- flickerSeed → int
-
Seed for the deterministic flicker pattern.
final
- glowColor → Color
-
Bright glow color during flicker peaks.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
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 flicker using multi-frequency noise.
override
-
getTotalDuration(
int charCount) → Duration -
Returns the total duration needed to animate all
charCountcharacters.override -
noise(
int index, [int offset = 0]) → double -
Returns a deterministic pseudo-random value (0.0–1.0) for the given
indexand optionaloffset.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
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited