Uses of Class
playn.scene.Layer

Uses of Layer in playn.scene

Subclasses of Layer in playn.scene

Modifier and Type	Class and Description
class	CanvasLayer Simplifies the process of displaying a Canvas which is updated after its initial creation.
class	ClippedLayer A layer whose rendering is (usually) clipped to a rectangle.
class	GroupLayer GroupLayer creates a Layer hierarchy by maintaining an ordered group of child Layers.
class	ImageLayer A layer that displays a texture or region of a texture (tile).
class	RootLayer Serves as the root of the scene graph.

Fields in playn.scene declared as Layer

Modifier and Type	Field and Description
Layer	Interaction.hitLayer The layer that was hit at the start of this interaction.

Methods in playn.scene that return Layer

Modifier and Type	Method and Description
Layer	Layer.absorbHits() Configures a hit tester for this layer which hits this layer any time a hit does not hit a child of this layer.
Layer	GroupLayer.childAt(int index) Returns the layer at the specified index.
static Layer	LayerUtil.getHitLayer(Layer root, Point p) Returns the layer hit by (screen) position p (or null) in the scene graph rooted at root, using hitTest(pythagoras.f.Point).
Layer	Layer.HitTester.hitTest(Layer layer, Point p) Returns layer, or a child of layer if the supplied coordinate (which is in layer's coordinate system) hits layer, or one of its children.
Layer	Layer.hitTest(Point p) Tests whether the supplied (layer relative) point "hits" this layer or any of its children.
Layer	Layer.hitTestDefault(Point p) Like hitTest(pythagoras.f.Point) except that it ignores a configured Layer.HitTester.
Layer	GroupLayer.hitTestDefault(Point point)
static Layer	LayerUtil.layerUnderPoint(Layer root, float x, float y) Gets the layer underneath the given screen coordinates, ignoring hit testers.
Layer	Layer.setAlpha(float alpha) Sets the alpha component of this layer's current tint.
Layer	Layer.setBatch(QuadBatch batch) Configures a custom batch (i.e.
Layer	Layer.setDepth(float depth) Sets the depth of this layer.
Layer	Layer.setHitTester(Layer.HitTester tester) Configures a custom hit tester for this layer.
Layer	Layer.setInteractive(boolean interactive) Configures this layer as reactive to clicks and touches, or not.
Layer	Layer.setOrigin(float x, float y) Sets the origin of the layer to a fixed position.
Layer	Layer.setOrigin(Layer.Origin origin) Configures the origin of this layer based on a logical location which is recomputed whenever the layer changes size.
Layer	Layer.setRotation(float angle) Sets the current rotation of this layer, in radians.
Layer	Layer.setScale(float scale) Sets the current x and y scale of this layer to scale..
Layer	Layer.setScale(float sx, float sy) Sets the current x and y scale of this layer.
Layer	Layer.setScaleX(float sx) Sets the current x scale of this layer.
Layer	Layer.setScaleY(float sy) Sets the current y scale of this layer.
Layer	Layer.setTint(int tint) Sets the tint for this layer, as ARGB.
Layer	Layer.setTranslation(float x, float y) Sets the x and y translation of this layer.
Layer	Layer.setTranslation(XY trans) A variant of setTranslation(float,float) that takes an XY.
Layer	Layer.setTx(float x) Sets the x translation of this layer.
Layer	Layer.setTy(float y) Sets the y translation of this layer.
Layer	Layer.setVisible(boolean visible) Configures this layer's visibility: if true, it will be rendered as normal, if false it and its children will not be rendered.

Methods in playn.scene that return types with arguments of type Layer

Modifier and Type	Method and Description
Iterator<Layer>	GroupLayer.iterator()

Methods in playn.scene with parameters of type Layer

Modifier and Type	Method and Description
void	GroupLayer.add(Layer child) Adds a layer to the bottom of the group.
void	GroupLayer.add(Layer child0, Layer child1, Layer... childN) Adds all supplied children to this layer, in order.
void	GroupLayer.add(Layer child0, Layer child1, Layer... childN) Adds all supplied children to this layer, in order.
void	GroupLayer.addAt(Layer child, float tx, float ty) Adds the supplied layer to this group layer, adjusting its translation (relative to this group layer) to the supplied values.
void	GroupLayer.addCenterAt(Layer child, float tx, float ty) Adds child to this group layer, positioning it such that its center is at (tx, tx).
void	GroupLayer.addFloorAt(Layer child, float tx, float ty) Adds child to this group layer, adjusting its translation (relative to this group layer) to floor(tx), floor(ty).
static void	LayerUtil.bind(Layer layer, Signal<Clock> paint, Slot<Clock> onPaint) Automatically connects onPaint to paint when layer is added to a scene graph, and disconnects it when layer is removed.
static void	LayerUtil.bind(Layer layer, Signal<Clock> update, Slot<Clock> onUpdate, Signal<Clock> paint, Slot<Clock> onPaint) Automatically connects onUpdate to update, and onPaint to paint when layer is added to a scene graph, and disconnects them when layer is removed.
static Layer	LayerUtil.getHitLayer(Layer root, Point p) Returns the layer hit by (screen) position p (or null) in the scene graph rooted at root, using hitTest(pythagoras.f.Point).
static int	LayerUtil.graphDepth(Layer layer) Returns the depth of the given layer in its local scene graph.
static boolean	LayerUtil.hitTest(Layer layer, float x, float y) Returns true if a coordinate on the screen touches a Layer.
Layer	Layer.HitTester.hitTest(Layer layer, Point p) Returns layer, or a child of layer if the supplied coordinate (which is in layer's coordinate system) hits layer, or one of its children.
static boolean	LayerUtil.hitTest(Layer layer, XY pos) Returns true if an XY touches a Layer.
static int	LayerUtil.indexInParent(Layer layer) Returns the index of the given layer within its parent, or -1 if the parent is null.
static Point	LayerUtil.layerToParent(Layer layer, Layer parent, float x, float y) Converts the supplied point from coordinates relative to the specified child layer to coordinates relative to the specified parent layer.
static Point	LayerUtil.layerToParent(Layer layer, Layer parent, XY point, Point into) Converts the supplied point from coordinates relative to the specified child layer to coordinates relative to the specified parent layer.
static Point	LayerUtil.layerToScreen(Layer layer, float x, float y) Converts the supplied point from coordinates relative to the specified layer to screen coordinates.
static Point	LayerUtil.layerToScreen(Layer layer, XY point, Point into) Converts the supplied point from coordinates relative to the specified layer to screen coordinates.
static Layer	LayerUtil.layerUnderPoint(Layer root, float x, float y) Gets the layer underneath the given screen coordinates, ignoring hit testers.
static Point	LayerUtil.parentToLayer(Layer parent, Layer layer, XY point, Point into) Converts the supplied point from coordinates relative to the specified parent to coordinates relative to the specified child layer.
static Point	LayerUtil.parentToLayer(Layer layer, XY point, Point into) Converts the supplied point from coordinates relative to its parent to coordinates relative to the specified layer.
static void	LayerUtil.print(Log log, Layer layer) Prints the layer heirarchy starting at layer, using Log.debug(java.lang.String).
void	GroupLayer.remove(Layer child) Removes a layer from the group.
void	GroupLayer.remove(Layer child0, Layer child1, Layer... childN) Removes all supplied children from this layer, in order.
void	GroupLayer.remove(Layer child0, Layer child1, Layer... childN) Removes all supplied children from this layer, in order.
static Point	LayerUtil.screenToLayer(Layer layer, float x, float y) Converts the supplied point from screen coordinates to coordinates relative to the specified layer.
static Point	LayerUtil.screenToLayer(Layer layer, XY point, Point into) Converts the supplied point from screen coordinates to coordinates relative to the specified layer.
void	Layer.Visitor.visit(Layer layer, int depth)

Method parameters in playn.scene with type arguments of type Layer

Modifier and Type	Method and Description
void	Layer.onAdded(SignalView.Listener<? super Layer> action) Connects action to state such that it is triggered when this layer is added to a rooted scene graph.
void	Layer.onDisposed(SignalView.Listener<? super Layer> action) Connects action to state such that it is triggered when this layer is disposed.
void	Layer.onRemoved(SignalView.Listener<? super Layer> action) Connects action to state such that it is triggered when this layer is removed from a rooted scene graph.

Constructors in playn.scene with parameters of type Layer

Constructor and Description
Dispatcher(Layer root, boolean bubble)
Dispatcher(Layer root, boolean bubble)
Dispatcher(Layer root, boolean bubble)
Interaction(Layer hitLayer, boolean bubble)
Pointer(Platform plat, Layer root, boolean bubble) Creates a pointer event system which dispatches both global pointer events and per-layer pointer events.