FluidSimulationWidget class
A widget that renders a fluid simulation.
The simulation is based on double-density relaxation and supports interactivity via tap or mouse hover and device orientation.
Ported from LÖVE Fluid Simulation with significant help from Claude.
See also:
- Particle-based Viscoelastic Fluid Simulation The paper describing double-density relaxation.
- Simulating Blobs of Fluid The article that inspired me to build my first fluid simulation.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- FluidSimulationWidget
Constructors
- FluidSimulationWidget.new({Key? key, Color? color, int particleCount = kDefaultParticleCount, double stiffness = kDefaultStiffness, double stiffnessNear = kDefaultStiffnessNear, double restDensity = kDefaultRestDensity, double interactionRadius = kDefaultInteractionRadius, double gravityMagnitude = kDefaultGravityMagnitude, RenderMode renderMode = kDefaultRenderMode, double gradientRadius = kDefaultGradientRadius, bool pointerEnabled = true, bool orientationEnabled = true, Widget? child})
-
const
Properties
- child → Widget?
-
An optional child widget to render UI elements on top of the fluid simulation.
final
- color → Color?
-
The color of the fluid.
final
- gradientRadius → double
-
The radius of the density gradient used for rendering blobs.
final
- gravityMagnitude → double
-
The magnitude of the gravity force applied to the particles.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- interactionRadius → double
-
The radius around a particle in which it interacts with neighboring particles.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- orientationEnabled → bool
-
Whether gravity is determined by the device orientation.
final
- particleCount → int
-
The number of particles in the simulation.
final
- pointerEnabled → bool
-
Whether the fluid particles are affected by tap or mouse hover.
final
- renderMode → RenderMode
-
The render mode of the particles.
final
- restDensity → double
-
The rest density of the fluid.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- stiffness → double
-
The stiffness constant for the pressure constraint.
final
- stiffnessNear → double
-
The stiffness constant for the near-pressure constraint.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< FluidSimulationWidget> -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited