SpaceClockScene class
Sun Clock
Draws the Actual Sun/Moon/Earth/Stars Clock
A general explanation is as follows
Draws in order
-
Fixed star background (rotating over time, for motion effect)
-
Star Simulation
- Matrix math for projecting and transforming to "time space" and screen space
- Batched by Z distance to set size/color and draw with drawPoints() to reduce draw calls
-
Sun
- "Hour Hand".
- First draws a circle (Base Layer) in white
- Drawn in layers (4 images)
- The layers have varying blend modes (Multiply/Plus/SoftLight)
- Multiply to emulate sunspots
- Plus/Softlight to emulate light/glowing
- Layers rotate slowly in varying directions
- Each layer is drawn twice, once flipped and rotated in opposite direction
- The effective 8 layers do a Perlin compose a perlin noise that looks a lot like the sun.
-
Earth
- "Minute Hand"
- Rotates around the center of the screen once per hour.
- Shadow layer is drawn over the earth, opposite the sun
-
Moon
- "Seconds Hand"
- Rotates around earth once a minute
- Shadow layer is drawn over the moon, opposite the sun
Notes: This is graphics/math heavy, custom code to create the scene
Space Clock Scene
Handles the drawing of the space clock
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- SpaceClockScene
Constructors
- SpaceClockScene(ClockModel model, {bool showMoon = false, bool showEarth = true, bool showSun = false, Key? key})
-
SpaceClockScene
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- model → ClockModel
-
ClockModel from the challenge
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- showEarth → bool
-
final
- showMoon → bool
-
final
- showSun → bool
-
final
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
inherited
-
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}) → 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