Particle class - engine library

Constructors

Particle({required Color color, required Offset velocity, double rotationSpeed = 0, Offset? startPosition, double? lifetime, Color? endColor, List<Color>? colorGradient, Curve colorCurve = const Cubic(0, 0, 1, 1), double startScale = 1.0, double? endScale, Curve scaleCurve = const Cubic(0, 0, 1, 1), double startOpacity = 1.0, double? endOpacity, Curve opacityCurve = const Cubic(0, 0, 1, 1), bool trailEnabled = false, int trailLength = 10, bool trailFade = true})

age → double: no setter
color → Color: Define the color of a single particle.
final
colorCurve → Curve: final
colorGradient → List<Color>?: final
currentVelocity → Offset: no setter
endColor → Color?: final
endOpacity → double?: final
endScale → double?: final
hashCode → int: The hash code for this object.
no setterinherited
isExpired → bool: no setter
lifetime → double?: Duration in seconds before the particle expires. null = infinite.
final
lifetimeProgress → double: no setter
opacityCurve → Curve: final
paintColor → Color: no setter
position → Offset: no setter
rotation → double: no setter
rotationSpeed → double: Define the rotation speed of a single particle.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
scaleCurve → Curve: final
startOpacity → double: final
startScale → double: final
trailCount → int: no setter
trailEnabled → bool: final
trailFade → bool: final
trailLength → int: final
updateAge ← double: no getter
updateCurrentColor ← Color: no getter
updateCurrentOpacity ← double: no getter
updateCurrentScale ← double: no getter
updatePosition ← Offset: no getter
updateRotation ← double: no getter
updateVelocity ← Offset: no getter
velocity → Offset: Define the direction and speed of a single particle.
final

drawParticle(Canvas canvas, Size size) → void: Allow subclasses to define their own draw method
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
paint(Canvas canvas, Size size) → void
pushTrailPosition(Offset pos) → void
resetLifetimeState() → void: Resets lifetime-driven runtime state (color/scale/opacity/trail) back to start values. Used when a pooled particle slot is reused for a new burst.
rotate(Canvas canvas, double cx, double cy) → void
toString() → String: A string representation of this object.
inherited
trailPositionAt(int i) → Offset