EffectLine class

The EffectLine class is using the TexturedLine class to draw animated lines. These can be used to draw things such as smoke trails, electricity effects, or other animated types of lines.



EffectLine({SpriteTexture texture, BlendMode transferMode: BlendMode.dstOver, List<Offset> points, EffectLineWidthMode widthMode: EffectLineWidthMode.linear, double minWidth: 10.0, double maxWidth: 10.0, double widthGrowthSpeed: 0.0, EffectLineAnimationMode animationMode: EffectLineAnimationMode.none, double scrollSpeed: 0.1, double scrollStart: 0.0, double fadeDuration, double fadeAfterDelay, double textureLoopLength, bool simplify: true, ColorSequence colorSequence})
Creates a new EffectLine with the specified parameters. Only the texture parameter is required, all other parameters are optional.


actions MotionController
@Deprecated('actions has been renamed to motions'), read-only, inherited
animationMode EffectLineAnimationMode
The mode used to animate the texture of the line.
children List<Node>
A list of the children of this node. [...]
read-only, inherited
colorSequence ColorSequence
Color gradient used to draw the line, from start to finish.
constraints List<Constraint>
A List of Constraints that will be applied to the node. The constraints are applied after the update method has been called.
read / write, inherited
fadeAfterDelay double
The time it takes until an added point starts to fade out.
fadeDuration double
The time it takes for an added point to fade out. It's total life time is fadeDuration + fadeAfterDelay.
handleMultiplePointers bool
If set to true the node will receive multiple pointers, otherwise it will only receive events the first pointer. [...]
read / write, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
inverseTransformMatrix Matrix4
The inverse transform matrix used by this node.
read-only, inherited
maxWidth double
The width of the line at its thickest point.
minWidth double
The width of the line at its thinnest point.
motions MotionController
The MotionController associated with this node. [...]
read-only, inherited
parent Node
The parent of this node, or null if it doesn't have a parent. [...]
read-only, inherited
paused bool
Decides if the node and its children is currently paused. [...]
read / write, inherited
points List<Offset>
List of points that make up the line. Typically, you will only want to set this at the beginning. Then use addPoint to add additional points to the line.
read / write
position Offset
The position of this node relative to its parent. [...]
read / write, inherited
rotation double
The rotation of this node in degrees. [...]
read / write, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
scale double
The scale of this node relative its parent. [...]
read / write, inherited
scaleX double
The horizontal scale of this node relative its parent. [...]
read / write, inherited
scaleY double
The vertical scale of this node relative its parent. [...]
read / write, inherited
scrollSpeed double
The speed of which the texture of the line is scrolling. This property is only used if the animationMode is set to EffectLineAnimationMode.scroll.
simplify bool
True if the line should be simplified by removing points that are close to other points. This makes drawing faster, but can result in a slight jittering effect when points are added.
skewX double
The skew along the x-axis of this node in degrees. [...]
read / write, inherited
skewY double
The skew along the y-axis of this node in degrees. [...]
read / write, inherited
spriteBox SpriteBox
The SpriteBox this node is added to, or null if it's not currently added to a SpriteBox. [...]
read-only, inherited
texture SpriteTexture
The texture used to draw the line.
textureLoopLength double
The length, in points, that the texture is stretched to. If the textureLoopLength is shorter than the line, the texture will be looped.
transferMode BlendMode
The transfer mode used to draw the line, default is TransferMode.dstOver.
transformMatrix Matrix4
The transformMatrix describes the transformation from the node's parent. [...]
read-only, inherited
userInteractionEnabled bool
The node will receive user interactions, such as pointer (touch or mouse) events. [...]
read / write, inherited
visible bool
The visibility of this node and its children.
read / write, inherited
widthGrowthSpeed double
The speed at which the line is growing, defined in points per second.
widthMode EffectLineWidthMode
Mode used to calculate the width of the line.
zPosition double
The draw order of this node compared to its parent and its siblings. [...]
read / write, inherited


addChild(Node child) → void
Adds a child to this node. [...]
addPoint(Offset point) → void
Adds a new point to the end of the line.
applyConstraints(double dt) → void
Called to apply the constraints to the node. Normally, this method is called automatically by the SpriteBox, but it can be called manually if the constraints need to be applied immediately.
computeTransformMatrix() Matrix4
Computes the transformation matrix of this node. This method can be overriden if a custom matrix is required. There is usually no reason to call this method directly.
convertPointFromNode(Offset point, Node node) Offset
Converts a point from another nodes coordinate system into the local coordinate system of this node. [...]
convertPointToBoxSpace(Offset nodePoint) Offset
Converts a point from the local coordinate system of the node to the coordinate system of the SpriteBox. [...]
convertPointToNodeSpace(Offset boxPoint) Offset
Converts a point from the coordinate system of the SpriteBox to the local coordinate system of the node. [...]
handleEvent(SpriteBoxEvent event) bool
Handles an event, such as a pointer (touch or mouse) event. [...]
invalidateTransformMatrix() → void
Invalidates the current transform matrix. If the computeTransformMatrix method is overidden, this method should be called whenever a property changes that affects the matrix.
isPointInside(Offset point) bool
Returns true if the point is inside the node, the point is in the local coordinate system of the node. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
paint(Canvas canvas) → void
Paints this node to the canvas. [...]
removeAllChildren() → void
Removes all children of this node. [...]
removeChild(Node child) → void
Removes a child from this node. [...]
removeFromParent() → void
Removes this node from its parent node. [...]
spriteBoxPerformedLayout() → void
Called whenever the SpriteBox is modified or resized, or if the device is rotated. [...]
toString() String
Returns a string representation of this object.
update(double dt) → void
Called before a frame is drawn. [...]


operator ==(dynamic other) bool
The equality operator. [...]