Particle class

The basic particle used by ParticleField. It includes properties common to most particle effects.

This class can be extended to add additional data or methods.

Constructors

Particle({double x = 0.0, double y = 0.0, double scale = 1.0, double rotation = 0.0, int frame = 0, Color color = Colors.black, double vx = 0.0, double vy = 0.0, double lifespan = 0.0, double age = 0.0}): Constructs a Particle instance.

age ↔ double: Value that can be useful for managing particle lifecycles. By default update adds 1 to this value.
getter/setter pair
color ↔ Color: A color that can be composited with the image frame via ParticleField.blendMode. For example, you could modify the opacity of particles by using BlendMode.srcIn (the default) and adjusting the opacity of the particle color:
getter/setter pair
frame ↔ int: The index of the frame to display from the particle field's ImageFrameProvider. For SpriteSheet this can exceed length, and will loop.
getter/setter pair
hashCode → int: The hash code for this object.
no setterinherited
lifespan ↔ double: Value that can be useful for managing particle lifecycles.
getter/setter pair
rotation ↔ double: The rotation of this particle in radians.
getter/setter pair
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
scale ↔ double: The scale of this particle.
getter/setter pair
vx ↔ double: Horizontal velocity. By default update adds this value to x.
getter/setter pair
vy ↔ double: Vertical velocity. By default update adds this value to y.
getter/setter pair
x ↔ double: The horizontal position of this particle.
getter/setter pair
y ↔ double: The vertical position of this particle.
getter/setter pair

noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toOffset([Matrix4? transform]) → Offset: Returns an Offset representing this particle's position, optionally with a transformation applied.
toString() → String: A string representation of this object.
inherited
update({double? x, double? y, double? scale, double? rotation, int? frame, Color? color, double? vx, double? vy, double? lifespan, double? age}) → void: Sets any values specified, and runs basic logic: