FollowEffect class
An effect that moves a PositionOwner toward following at speed.
Emits EffectNode.onFinish on arrival, and again each time it falls behind and catches back up.
- Inheritance
-
- Object
- Node
- EffectNode
- FollowEffect
- Available extensions
Constructors
- FollowEffect({required PositionOwner following, required double speed, bool? cleanup, bool? enabled, int? priority})
Properties
-
ancestors
→ Iterable<
Node> -
This node's ancestors in the tree.
no setterinherited
-
children
→ Iterable<
Node> -
This node's direct children.
no setterinherited
- cleanup ↔ bool
-
Whether to detach once finished. Defaults to false.
getter/setter pairinherited
-
descendants
→ Iterable<
Node> -
This node's descendants in depth-first preorder.
no setterinherited
- destination → Vector2
-
Where target is currently moving toward.
no setter
- enabled ↔ bool
-
Whether this node updates and renders. Defaults to true.
getter/setter pairinherited
- following → PositionOwner
-
Where target moves toward.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasParent → bool
-
True if this node has a non-null parent.
no setterinherited
- isMounted → bool
-
True while this node is part of a mounted tree.
no setterinherited
- onFinish → Signal0
-
Emitted once, when this effect finishes progressing.
finalinherited
- onMount → Signal0
-
Emitted when this node is added to a scene.
finalinherited
-
onSceneResize
→ Signal1<
Vector2> -
Emitted when the scene resizes, and once at mount.
finalinherited
- onUnmount → Signal0
-
Emitted when this node is removed from a scene.
finalinherited
- parent → Node?
-
The parent that owns this node, or null when it is parentless.
no setterinherited
- priority ↔ int
-
This node's order in updating and rendering in its parent. Defaults to 0.
getter/setter pairinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
-
scene
→ Scene<
Node> -
This node's owning scene. Only valid while isMounted.
no setterinherited
- speed ↔ double
-
How fast target closes the distance to following.
getter/setter pair
- target → PositionOwner?
-
The PositionOwner whose position is mutated by this effect.
no setter
Methods
-
add<
T extends Node> (T node) → T -
Adds
nodeto this node. The node is returned.inherited -
addAll(
Iterable< Node> nodes) → void -
Adds all
nodesto this node.inherited -
attach(
Node node) → void -
Adds this node to the target
node.inherited -
build(
) → void -
Declares this node's children and behavior.
override
-
contains(
Node other) → bool -
Checks if this node contains the
othernode in its tree.inherited -
containsPoint(
Vector2 point) → bool -
Whether this node's hit area contains
point.inherited -
cycles(
Node node) → bool -
True if
nodeis (or soon will be) an ancestor of this node.inherited -
debugDraw(
DebugDraw draw) → void -
Draws to the debug overlay every frame, in the same space as
draw.inherited -
debugRender(
Canvas canvas) → void -
Renders the debug overlay for this node and its children to
canvas.inherited -
debugRenderSelf(
Canvas canvas) → void -
Runs this node's debugDraw callbacks, in the same space as renderSelf.
inherited
-
detach(
) → bool -
Removes this node from its parent, or from the parent it is on its way to.
inherited
-
disable(
) → void -
Disables this node, so it stops updating and rendering.
inherited
-
draw(
Draw draw) → void -
Draws to
canvasevery frame, in this node's own coordinate space.inherited -
enable(
) → void -
Enables this node, so it resumes updating and rendering.
inherited
-
hitTest(
Vector2 point) → Iterable< Node> -
Finds every enabled node in this subtree whose hit area contains
point, per containsPoint, topmost first.inherited -
mount(
) → Scene< T> -
Available on T, provided by the Mount extension
Mounts this node as the root of a new Scene and returns it. -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
owns(
Node other) → bool -
Checks if this node owns the
othernode.inherited -
provide<
T> (T value) → void -
Provides
valueas this node's instance ofT, overwriting any value previously provided forT.inherited -
query<
T extends Node> () → Iterable< T> -
This node's direct children of type
T, in priority order.inherited -
read<
T> () → T -
Reads the nearest instance of
Tprovided by this node or an ancestor, checking this node first.inherited -
readOrNull<
T> () → T? -
Reads the nearest instance of
Tprovided by this node or an ancestor, checking this node first. Returns null if none was provided.inherited -
reassemble(
) → void -
What this node does when the tree is reassembled.
inherited
-
rebuild(
) → void -
Re-derives this node by running build again over the wreckage of the
last one.
inherited
-
remove(
Node node) → bool -
Removes the child
node.inherited -
removeAll(
) → void -
Removes all children.
inherited
-
render(
Canvas canvas) → void -
Renders this node and its children to
canvas.inherited -
renderSelf(
Canvas canvas) → void -
Runs this node's draw callbacks.
inherited
-
reset(
) → void -
Resets this effect back to its start.
override
-
tick(
Tick tick) → void -
Calls
tickwith the elapsed seconds on every frame.inherited -
toString(
) → String -
A string representation of this object.
inherited
-
trash(
Cleanup cleanup) → void -
Defers
cleanupuntil this build stops being current.inherited -
update(
double dt) → void -
Updates this node and its children by
dtseconds.inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited