Inheritance diagram for com.google.appinventor.components.runtime.Sprite:

Public Member Functions
void	Initialize ()

boolean	Enabled ()

void	Enabled (boolean enabled)

double	Heading ()

void	Heading (double userHeading)

int	Interval ()

void	Interval (int interval)

void	Speed (float speed)

float	Speed ()

boolean	Visible ()

void	Visible (boolean visible)

double	X ()

void	X (double x)

void	Y (double y)

double	Y ()

void	Z (double layer)

double	Z ()

void	CollidedWith (Sprite other)

void	Dragged (float startX, float startY, float prevX, float prevY, float currentX, float currentY)

void	EdgeReached (int edge)

void	NoLongerCollidingWith (Sprite other)

void	Touched (float x, float y)

void	Flung (float x, float y, float speed, float heading, float xvel, float yvel)

void	TouchUp (float x, float y)

void	TouchDown (float x, float y)

void	Bounce (int edge)

boolean	CollidingWith (Sprite other)

void	MoveIntoBounds ()

void	MoveTo (double x, double y)

void	PointTowards (Sprite target)

void	PointInDirection (double x, double y)

BoundingBox	getBoundingBox (int border)

boolean	intersectsWith (BoundingBox rect)

boolean	containsPoint (double qx, double qy)

void	alarm ()

HandlesEventDispatching	getDispatchDelegate ()

void	onDestroy ()

void	onDelete ()

Public Member Functions inherited from com.google.appinventor.components.runtime.VisibleComponent
abstract int	Width ()

abstract void	Width (int width)

abstract void	WidthPercent (int wPercent)

abstract int	Height ()

abstract void	Height (int height)

abstract void	HeightPercent (int hPercent)

Static Public Member Functions
static boolean	colliding (Sprite sprite1, Sprite sprite2)

Protected Member Functions
	Sprite (ComponentContainer container, Handler handler)

	Sprite (ComponentContainer container)

void	OriginAtCenter (boolean b)

void	postEvent (final Sprite sprite, final String eventName, final Object... args)

void	registerChange ()

int	hitEdge ()

final void	moveIntoBounds (int canvasWidth, int canvasHeight)

void	updateCoordinates ()

int	hitEdge (int canvasWidth, int canvasHeight)

abstract void	onDraw (android.graphics.Canvas canvas)

Protected Member Functions inherited from com.google.appinventor.components.runtime.VisibleComponent
	VisibleComponent ()

Protected Attributes
final Canvas	canvas

boolean	initialized = false

int	interval

boolean	visible = true

double	xLeft

double	yTop

double	zLayer

float	speed

boolean	originAtCenter

double	xCenter

double	yCenter

Form	form

double	userHeading

double	heading

double	headingRadians

double	headingCos

double	headingSin

Static Protected Attributes
static final boolean	DEFAULT_ORIGIN_AT_CENTER = false

Additional Inherited Members
Static Public Attributes inherited from com.google.appinventor.components.runtime.Component
static final String	ASSET_DIRECTORY = "component"

static final int	ALIGNMENT_NORMAL = 0

static final int	ALIGNMENT_CENTER = 1

static final int	ALIGNMENT_OPPOSITE = 2

static final int	ACCELEROMETER_SENSITIVITY_WEAK = 1

static final int	ACCELEROMETER_SENSITIVITY_MODERATE = 2

static final int	ACCELEROMETER_SENSITIVITY_STRONG = 3

static final int	BUTTON_SHAPE_DEFAULT = 0

static final int	BUTTON_SHAPE_ROUNDED = 1

static final int	BUTTON_SHAPE_RECT = 2

static final int	BUTTON_SHAPE_OVAL = 3

static final int	COLOR_NONE = 0x00FFFFFF

static final int	COLOR_BLACK = 0xFF000000

static final int	COLOR_BLUE = 0xFF0000FF

static final int	COLOR_CYAN = 0xFF00FFFF

static final int	COLOR_DKGRAY = 0xFF444444

static final int	COLOR_GRAY = 0xFF888888

static final int	COLOR_GREEN = 0xFF00FF00

static final int	COLOR_LTGRAY = 0xFFCCCCCC

static final int	COLOR_MAGENTA = 0xFFFF00FF

static final int	COLOR_ORANGE = 0xFFFFC800

static final int	COLOR_PINK = 0xFFFFAFAF

static final int	COLOR_RED = 0xFFFF0000

static final int	COLOR_WHITE = 0xFFFFFFFF

static final int	COLOR_YELLOW = 0xFFFFFF00

static final int	COLOR_DEFAULT = 0x00000000

static final String	DEFAULT_VALUE_COLOR_NONE = "&H00FFFFFF"

static final String	DEFAULT_VALUE_COLOR_BLACK = "&HFF000000"

static final String	DEFAULT_VALUE_COLOR_BLUE = "&HFF0000FF"

static final String	DEFAULT_VALUE_COLOR_CYAN = "&HFF00FFFF"

static final String	DEFAULT_VALUE_COLOR_DKGRAY = "&HFF444444"

static final String	DEFAULT_VALUE_COLOR_GRAY = "&HFF888888"

static final String	DEFAULT_VALUE_COLOR_GREEN = "&HFF00FF00"

static final String	DEFAULT_VALUE_COLOR_LTGRAY = "&HFFCCCCCC"

static final String	DEFAULT_VALUE_COLOR_MAGENTA = "&HFFFF00FF"

static final String	DEFAULT_VALUE_COLOR_ORANGE = "&HFFFFC800"

static final String	DEFAULT_VALUE_COLOR_PINK = "&HFFFFAFAF"

static final String	DEFAULT_VALUE_COLOR_RED = "&HFFFF0000"

static final String	DEFAULT_VALUE_COLOR_WHITE = "&HFFFFFFFF"

static final String	DEFAULT_VALUE_COLOR_YELLOW = "&HFFFFFF00"

static final String	DEFAULT_VALUE_COLOR_DEFAULT = "&H00000000"

static final float	FONT_DEFAULT_SIZE = 14

static final int	LAYOUT_ORIENTATION_HORIZONTAL = ComponentConstants.LAYOUT_ORIENTATION_HORIZONTAL

static final int	LAYOUT_ORIENTATION_VERTICAL = ComponentConstants.LAYOUT_ORIENTATION_VERTICAL

static final int	SCALING_SCALE_PROPORTIONALLY = 0

static final int	SCALING_SCALE_TO_FIT = 1

static final int	TYPEFACE_DEFAULT = 0

static final int	TYPEFACE_SANSSERIF = 1

static final int	TYPEFACE_SERIF = 2

static final int	TYPEFACE_MONOSPACE = 3

static final int	LENGTH_PREFERRED = -1

static final int	LENGTH_FILL_PARENT = -2

static final int	LENGTH_UNKNOWN = -3

static final int	LENGTH_PERCENT_TAG = -1000

static final int	TOAST_LENGTH_SHORT = 0

static final int	TOAST_LENGTH_LONG = 1

static final int	DIRECTION_NORTH = 1

static final int	DIRECTION_NORTHEAST = 2

static final int	DIRECTION_EAST = 3

static final int	DIRECTION_SOUTHEAST = 4

static final int	DIRECTION_SOUTH = -1

static final int	DIRECTION_SOUTHWEST = -2

static final int	DIRECTION_WEST = -3

static final int	DIRECTION_NORTHWEST = -4

static final int	DIRECTION_NONE = 0

static final int	DIRECTION_MIN = -4

static final int	DIRECTION_MAX = 4

static float	SLIDER_MIN_VALUE = 10

static float	SLIDER_MAX_VALUE = 50

static float	SLIDER_THUMB_VALUE = (SLIDER_MIN_VALUE + SLIDER_MAX_VALUE) / 2.0f

static final String	DEFAULT_VALUE_TEXT_TO_SPEECH_COUNTRY = ""

static final String	DEFAULT_VALUE_TEXT_TO_SPEECH_LANGUAGE = ""

Detailed Description

Superclass of sprites able to move and interact with other sprites.

While the Simple programmer sees the x- and y-coordinates as integers, they are maintained internally as doubles so fractional changes (caused by multiplying the speed by a cosine or sine value) have the chance to add up.

Author: spertus.google.com (Ellen Spertus)

Definition at line 37 of file Sprite.java.

Constructor & Destructor Documentation

◆ Sprite() [1/2]

com.google.appinventor.components.runtime.Sprite.Sprite	(	ComponentContainer	container,
		Handler	handler
	)

protected

Creates a new Sprite component. This version exists to allow injection of a mock handler for testing.

Parameters

container	where the component will be placed
handler	a scheduler to which runnable events will be posted

Definition at line 103 of file Sprite.java.

◆ Sprite() [2/2]

com.google.appinventor.components.runtime.Sprite.Sprite ( ComponentContainer container )

protected

Creates a new Sprite component. This is called by the constructors of concrete subclasses, such as Ball and ImageSprite.

Parameters

container where the component will be placed

Definition at line 140 of file Sprite.java.

Member Function Documentation

◆ alarm()

void com.google.appinventor.components.runtime.Sprite.alarm ( )

Moves and redraws sprite, registering changes.

Implements com.google.appinventor.components.runtime.AlarmHandler.

Definition at line 990 of file Sprite.java.

◆ Bounce()

void com.google.appinventor.components.runtime.Sprite.Bounce ( int edge )

Makes this type% bounce, as if off a wall. For normal bouncing, the edge argument should be the one returned by EdgeReached.

Parameters

edge the direction of the object (real or imaginary) to bounce off of; this should be one of com.google.appinventor.components.runtime.Component#DIRECTION_NORTH, com.google.appinventor.components.runtime.Component#DIRECTION_NORTHEAST, com.google.appinventor.components.runtime.Component#DIRECTION_EAST, com.google.appinventor.components.runtime.Component#DIRECTION_SOUTHEAST, com.google.appinventor.components.runtime.Component#DIRECTION_SOUTH, com.google.appinventor.components.runtime.Component#DIRECTION_SOUTHWEST, com.google.appinventor.components.runtime.Component#DIRECTION_WEST, or com.google.appinventor.components.runtime.Component#DIRECTION_NORTHWEST.

Definition at line 610 of file Sprite.java.

◆ CollidedWith()

void com.google.appinventor.components.runtime.Sprite.CollidedWith ( Sprite other )

Event handler called when two enabled sprites (Balls or ImageSprites) collide. Note that checking for collisions with a rotated ImageSprite currently checks against its unrotated position. Therefore, collision checking will be inaccurate for tall narrow or short wide sprites that are rotated.

Parameters

other the other sprite in the collision

Definition at line 435 of file Sprite.java.

◆ colliding()

static boolean com.google.appinventor.components.runtime.Sprite.colliding	(	Sprite	sprite1,
		Sprite	sprite2
	)

static

Determines whether two sprites are in collision. Note that we cannot merely see whether the rectangular regions around each intersect, since some types of sprite, such as BallSprite, are not rectangular.

Parameters

sprite1	one sprite
sprite2	another sprite

Returns: true

if they are in collision,
false

otherwise

Definition at line 922 of file Sprite.java.

◆ CollidingWith()

boolean com.google.appinventor.components.runtime.Sprite.CollidingWith ( Sprite other )

Indicates whether a collision has been registered between this type% and the passed other sprite.

Parameters

other the sprite to check for collision with this sprite

Returns: true

if a collision event has been raised for the pair of sprites and they still are in collision,
false

otherwise.

Definition at line 657 of file Sprite.java.

◆ containsPoint()

boolean com.google.appinventor.components.runtime.Sprite.containsPoint	(	double	qx,
		double	qy
	)

Indicates whether the specified point is contained by this sprite. Subclasses of Sprite that are not rectangular should override this method.

Parameters

qx	the x-coordinate
qy	the y-coordinate

Returns: whether (qx, qy) falls within this sprite

Reimplemented in com.google.appinventor.components.runtime.Ball.

Definition at line 978 of file Sprite.java.

◆ Dragged()

void com.google.appinventor.components.runtime.Sprite.Dragged	(	float	startX,
		float	startY,
		float	prevX,
		float	prevY,
		float	currentX,
		float	currentY
	)

Event handler for Dragged events. On all calls, the starting coordinates are where the screen was first touched, and the "current" coordinates describe the endpoint of the current line segment. On the first call within a given drag, the "previous" coordinates are the same as the starting coordinates; subsequently, they are the "current" coordinates from the prior call. Note that the type% won't actually move anywhere in response to the Dragged event unless MoveTo(double, double) is specifically called.

Parameters

startX	the starting x-coordinate
startY	the starting y-coordinate
prevX	the previous x-coordinate (possibly equal to startX)
prevY	the previous y-coordinate (possibly equal to startY)
currentX	the current x-coordinate
currentY	the current y-coordinate

Definition at line 470 of file Sprite.java.

◆ EdgeReached()

void com.google.appinventor.components.runtime.Sprite.EdgeReached ( int edge )

Event handler called when the type% reaches an edge{:.variable.block} of the screen. If Bounce(int) is then called with that edge, the sprite will appear to bounce off of the edge it reached. Edge here is represented as an integer that indicates one of eight directions north(1), northeast(2), east(3), southeast(4), south (-1), southwest(-2), west(-3), and northwest(-4).

Definition at line 489 of file Sprite.java.

◆ Enabled() [1/2]

boolean com.google.appinventor.components.runtime.Sprite.Enabled ( )

Controls whether the type% moves when its speed is non-zero.

Returns: true

indicates a running timer,
false

a stopped timer

Definition at line 166 of file Sprite.java.

◆ Enabled() [2/2]

void com.google.appinventor.components.runtime.Sprite.Enabled ( boolean enabled )

Enabled property setter method: starts or stops the timer.

@suppressdoc

Parameters

enabled

Definition at line 180 of file Sprite.java.

◆ Flung()

void com.google.appinventor.components.runtime.Sprite.Flung	(	float	x,
		float	y,
		float	speed,
		float	heading,
		float	xvel,
		float	yvel
	)

When a fling gesture (quick swipe) is made on the sprite: provides the (x,y) position of the start of the fling, relative to the upper left of the canvas. Also provides the speed (pixels per millisecond) and heading (0-360 degrees) of the fling, as well as the x velocity and y velocity components of the fling's vector.

Parameters

x	x-coordinate of touched point
y	y-coordinate of touched point
speed	the speed of the fling sqrt(xspeed^2 + yspeed^2)
heading	the heading of the fling
xvel	the speed in x-direction of the fling
yvel	the speed in y-direction of the fling

Definition at line 553 of file Sprite.java.

◆ getBoundingBox()

BoundingBox com.google.appinventor.components.runtime.Sprite.getBoundingBox ( int border )

Provides the bounding box for this sprite. Modifying the returned value does not affect the sprite.

Parameters

border the number of pixels outside the sprite to include in the bounding box

Returns: the bounding box for this sprite

Definition at line 908 of file Sprite.java.

◆ getDispatchDelegate()

HandlesEventDispatching com.google.appinventor.components.runtime.Sprite.getDispatchDelegate ( )

Returns the dispatch delegate that is responsible for dispatching events for this component.

Implements com.google.appinventor.components.runtime.Component.

Definition at line 1002 of file Sprite.java.

◆ Heading() [1/2]

double com.google.appinventor.components.runtime.Sprite.Heading ( )

The type%'s heading in degrees above the positive x-axis. Zero degrees is toward the right of the screen; 90 degrees is toward the top of the screen.

Returns: degrees above the positive x-axis

Definition at line 194 of file Sprite.java.

◆ Heading() [2/2]

void com.google.appinventor.components.runtime.Sprite.Heading ( double userHeading )

Sets heading in which sprite should move. In addition to changing the local variables userHeading and heading, this sets headingCos, headingSin, and headingRadians.

@suppressdoc

Parameters

userHeading degrees above the positive x-axis

Definition at line 210 of file Sprite.java.

◆ hitEdge() [1/2]

int com.google.appinventor.components.runtime.Sprite.hitEdge ( )

protected

Specifies which edge of the canvas has been hit by the Sprite, if any, moving the sprite back in bounds.

Returns: Component#DIRECTION_NONE if no edge has been hit, or a direction (e.g., Component#DIRECTION_NORTHEAST) if that edge of the canvas has been hit

Definition at line 751 of file Sprite.java.

◆ hitEdge() [2/2]

int com.google.appinventor.components.runtime.Sprite.hitEdge	(	int	canvasWidth,
		int	canvasHeight
	)

protected

Definition at line 849 of file Sprite.java.

◆ Initialize()

void com.google.appinventor.components.runtime.Sprite.Initialize ( )

Definition at line 147 of file Sprite.java.

◆ intersectsWith()

boolean com.google.appinventor.components.runtime.Sprite.intersectsWith ( BoundingBox rect )

Determines whether this sprite intersects with the given rectangle.

Parameters

rect	the rectangle

Returns: true

if they intersect,
false

otherwise

Definition at line 950 of file Sprite.java.

◆ Interval() [1/2]

int com.google.appinventor.components.runtime.Sprite.Interval ( )

The interval in milliseconds at which the type%'s position is updated. For example, if the Interval is 50 and the Speed(float) is 10, then the type% will move 10 pixels every 50 milliseconds.

Returns: timer interval in ms

Definition at line 232 of file Sprite.java.

◆ Interval() [2/2]

void com.google.appinventor.components.runtime.Sprite.Interval ( int interval )

Interval property setter method: sets the interval between timer events.

@suppressdoc

Parameters

interval timer interval in ms

Definition at line 246 of file Sprite.java.

◆ MoveIntoBounds()

void com.google.appinventor.components.runtime.Sprite.MoveIntoBounds ( )

Moves the sprite back in bounds if part of it extends out of bounds, having no effect otherwise. If the sprite is too wide to fit on the canvas, this aligns the left side of the sprite with the left side of the canvas. If the sprite is too tall to fit on the canvas, this aligns the top side of the sprite with the top side of the canvas.

Definition at line 674 of file Sprite.java.

◆ moveIntoBounds()

final void com.google.appinventor.components.runtime.Sprite.moveIntoBounds	(	int	canvasWidth,
		int	canvasHeight
	)

protected

Moves the sprite back in bounds if part of it extends out of bounds, having no effect otherwise. If the sprite is too wide to fit on the canvas, this aligns the left side of the sprite with the left side of the canvas. If the sprite is too tall to fit on the canvas, this aligns the top side of the sprite with the top side of the canvas.

Definition at line 766 of file Sprite.java.

◆ MoveTo()

void com.google.appinventor.components.runtime.Sprite.MoveTo	(	double	x,
		double	y
	)

Moves the type% so that its left top corner is at the specified x and y coordinates.

Parameters

x	the x-coordinate
y	the y-coordinate

Reimplemented in com.google.appinventor.components.runtime.ImageSprite, and com.google.appinventor.components.runtime.Ball.

Definition at line 685 of file Sprite.java.

◆ NoLongerCollidingWith()

void com.google.appinventor.components.runtime.Sprite.NoLongerCollidingWith ( Sprite other )

Event indicating that a pair of sprites are no longer colliding.

@internaldoc This also registers the removal of the collision to a private variable registeredCollisions so that CollidedWith(Sprite) and this event are only raised once per beginning and ending of a collision.

Parameters

other the sprite formerly colliding with this sprite

Definition at line 513 of file Sprite.java.

◆ onDelete()

void com.google.appinventor.components.runtime.Sprite.onDelete ( )

Implements com.google.appinventor.components.runtime.Deleteable.

Definition at line 1016 of file Sprite.java.

◆ onDestroy()

void com.google.appinventor.components.runtime.Sprite.onDestroy ( )

Implements com.google.appinventor.components.runtime.OnDestroyListener.

Definition at line 1009 of file Sprite.java.

◆ onDraw()

abstract void com.google.appinventor.components.runtime.Sprite.onDraw ( android.graphics.Canvas canvas )

abstractprotected

Draws the sprite on the given canvas

Parameters

canvas the canvas on which to draw

Reimplemented in com.google.appinventor.components.runtime.ImageSprite.

◆ OriginAtCenter()

void com.google.appinventor.components.runtime.Sprite.OriginAtCenter ( boolean b )

protected

Reimplemented in com.google.appinventor.components.runtime.Ball.

Definition at line 396 of file Sprite.java.

◆ PointInDirection()

void com.google.appinventor.components.runtime.Sprite.PointInDirection	(	double	x,
		double	y
	)

Turns this type% to point toward the point with the coordinates (x, y).

Parameters

x	parameter of the point to turn to
y	parameter of the point to turn to

Definition at line 714 of file Sprite.java.

◆ PointTowards()

void com.google.appinventor.components.runtime.Sprite.PointTowards ( Sprite target )

Turns this type% to point towards a given target sprite. The new heading will be parallel to the line joining the centerpoints of the two sprites.

Parameters

target the other sprite to point towards

Definition at line 701 of file Sprite.java.

◆ postEvent()

void com.google.appinventor.components.runtime.Sprite.postEvent	(	final Sprite	sprite,
		final String	eventName,
		final Object...	args
	)

protected

Posts a dispatch for the specified event. This guarantees that event handlers run with serial semantics, e.g., appear atomic relative to each other.

This method is overridden in tests.

Parameters

sprite	the instance on which the event takes place
eventName	the name of the event
args	the arguments to the event handler

Definition at line 415 of file Sprite.java.

◆ registerChange()

void com.google.appinventor.components.runtime.Sprite.registerChange ( )

protected

Responds to a move or change of this sprite by redrawing the enclosing Canvas and checking for any consequences that need handling. Specifically, this (1) notifies the Canvas of a change so it can detect any collisions, etc., and (2) raises the EdgeReached(int) event if the Sprite has reached the edge of the Canvas.

Definition at line 728 of file Sprite.java.

◆ Speed() [1/2]

float com.google.appinventor.components.runtime.Sprite.Speed ( )

Gets the speed with which this sprite moves.

@suppressdoc

Returns: the magnitude (in pixels) the sprite moves every interval milliseconds.

Definition at line 276 of file Sprite.java.

◆ Speed() [2/2]

void com.google.appinventor.components.runtime.Sprite.Speed ( float speed )

The speed at which the type% moves. The type% moves this many pixels every Interval() milliseconds if Enabled(boolean) is true{:.logic.block}.

Parameters

speed the magnitude (in pixels) to move every interval milliseconds

Definition at line 262 of file Sprite.java.

◆ TouchDown()

void com.google.appinventor.components.runtime.Sprite.TouchDown	(	float	x,
		float	y
	)

When the user begins touching the sprite (places finger on sprite and leaves it there): provides the (x,y) position of the touch, relative to the upper left of the canvas

Parameters

x	x-coordinate of touched point
y	y-coordinate of touched point

Definition at line 585 of file Sprite.java.

◆ Touched()

void com.google.appinventor.components.runtime.Sprite.Touched	(	float	x,
		float	y
	)

When the user touches the sprite and then immediately lifts finger: provides the (x,y) position of the touch, relative to the upper left of the canvas.

Parameters

x	x-coordinate of touched point
y	y-coordinate of touched point

Definition at line 529 of file Sprite.java.

◆ TouchUp()

void com.google.appinventor.components.runtime.Sprite.TouchUp	(	float	x,
		float	y
	)

When the user stops touching the sprite (lifts finger after a TouchDown event): provides the (x,y) position of the touch, relative to the upper left of the canvas.

Parameters

x	x-coordinate of touched point
y	y-coordinate of touched point

Definition at line 569 of file Sprite.java.

◆ updateCoordinates()

void com.google.appinventor.components.runtime.Sprite.updateCoordinates ( )

protected

Updates the x- and y-coordinates based on the heading and speed. The caller is responsible for calling registerChange().

Definition at line 823 of file Sprite.java.

◆ Visible() [1/2]

boolean com.google.appinventor.components.runtime.Sprite.Visible ( )

The Visible property determines whether the type% is visible (true{:.logic.block}) or invisible (false{:.logic.block}).

Returns: true

if the sprite is visible,
false

otherwise

Definition at line 287 of file Sprite.java.

◆ Visible() [2/2]

void com.google.appinventor.components.runtime.Sprite.Visible ( boolean visible )

Sets whether sprite should be visible.

Parameters

visible

Definition at line 301 of file Sprite.java.

◆ X() [1/2]

double com.google.appinventor.components.runtime.Sprite.X ( )

Reimplemented in com.google.appinventor.components.runtime.ImageSprite, and com.google.appinventor.components.runtime.Ball.

Definition at line 306 of file Sprite.java.

◆ X() [2/2]

void com.google.appinventor.components.runtime.Sprite.X ( double x )

Definition at line 334 of file Sprite.java.

◆ Y() [1/2]

double com.google.appinventor.components.runtime.Sprite.Y ( )

Reimplemented in com.google.appinventor.components.runtime.ImageSprite, and com.google.appinventor.components.runtime.Ball.

Definition at line 367 of file Sprite.java.

◆ Y() [2/2]

void com.google.appinventor.components.runtime.Sprite.Y ( double y )

Definition at line 362 of file Sprite.java.

◆ Z() [1/2]

double com.google.appinventor.components.runtime.Sprite.Z ( )

Definition at line 390 of file Sprite.java.

◆ Z() [2/2]

void com.google.appinventor.components.runtime.Sprite.Z ( double layer )

How the type% should be layered relative to other Balls and ImageSprites, with higher-numbered layers appearing in front of lower-numbered layers.

Parameters

layer higher numbers indicate that this sprite should appear in front of ones with lower numbers; if values are equal for sprites, either can go in front of the other

Definition at line 382 of file Sprite.java.

Member Data Documentation

◆ canvas

final Canvas com.google.appinventor.components.runtime.Sprite.canvas

protected

Definition at line 48 of file Sprite.java.

◆ DEFAULT_ORIGIN_AT_CENTER

final boolean com.google.appinventor.components.runtime.Sprite.DEFAULT_ORIGIN_AT_CENTER = false

staticprotected

Definition at line 46 of file Sprite.java.

◆ form

Form com.google.appinventor.components.runtime.Sprite.form

protected

Definition at line 76 of file Sprite.java.

◆ heading

double com.google.appinventor.components.runtime.Sprite.heading

protected

The angle, in degrees below the positive x-axis, specified by the user. We use this to compute new coordinates because, on Android, the y-coordinate increases "below" the x-axis.

Definition at line 91 of file Sprite.java.

◆ headingCos

double com.google.appinventor.components.runtime.Sprite.headingCos

protected

Definition at line 93 of file Sprite.java.

◆ headingRadians

double com.google.appinventor.components.runtime.Sprite.headingRadians

protected

Definition at line 92 of file Sprite.java.

◆ headingSin

double com.google.appinventor.components.runtime.Sprite.headingSin

protected

Definition at line 94 of file Sprite.java.

◆ initialized

boolean com.google.appinventor.components.runtime.Sprite.initialized = false

protected

Definition at line 60 of file Sprite.java.

◆ interval

int com.google.appinventor.components.runtime.Sprite.interval

protected

Definition at line 64 of file Sprite.java.

◆ originAtCenter

boolean com.google.appinventor.components.runtime.Sprite.originAtCenter

protected

Definition at line 72 of file Sprite.java.

◆ speed

float com.google.appinventor.components.runtime.Sprite.speed

protected

Definition at line 69 of file Sprite.java.

◆ userHeading

double com.google.appinventor.components.runtime.Sprite.userHeading

protected

The angle, in degrees above the positive x-axis, specified by the user. This is private in order to enforce that changing it also changes heading, headingRadians, headingCos, and headingSin.

Definition at line 84 of file Sprite.java.

◆ visible

boolean com.google.appinventor.components.runtime.Sprite.visible = true

protected

Definition at line 65 of file Sprite.java.

◆ xCenter

double com.google.appinventor.components.runtime.Sprite.xCenter

protected

Definition at line 73 of file Sprite.java.

◆ xLeft

double com.google.appinventor.components.runtime.Sprite.xLeft

protected

Definition at line 66 of file Sprite.java.

◆ yCenter

double com.google.appinventor.components.runtime.Sprite.yCenter

protected

Definition at line 74 of file Sprite.java.

◆ yTop

double com.google.appinventor.components.runtime.Sprite.yTop

protected

Definition at line 67 of file Sprite.java.

◆ zLayer

double com.google.appinventor.components.runtime.Sprite.zLayer

protected

Definition at line 68 of file Sprite.java.

The documentation for this class was generated from the following file:

C:/Users/Ulli/appinventor-sources/appinventor/components/src/com/google/appinventor/components/runtime/Sprite.java

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Sprite() [1/2]

◆ Sprite() [2/2]

Member Function Documentation

◆ alarm()

◆ Bounce()

◆ CollidedWith()

◆ colliding()

◆ CollidingWith()

◆ containsPoint()

◆ Dragged()

◆ EdgeReached()

◆ Enabled() [1/2]

◆ Enabled() [2/2]

◆ Flung()

◆ getBoundingBox()

◆ getDispatchDelegate()

◆ Heading() [1/2]

◆ Heading() [2/2]

◆ hitEdge() [1/2]

◆ hitEdge() [2/2]

◆ Initialize()

◆ intersectsWith()

◆ Interval() [1/2]

◆ Interval() [2/2]

◆ MoveIntoBounds()

◆ moveIntoBounds()

◆ MoveTo()

◆ NoLongerCollidingWith()

◆ onDelete()

◆ onDestroy()

◆ onDraw()

◆ OriginAtCenter()

◆ PointInDirection()

◆ PointTowards()

◆ postEvent()

◆ registerChange()

◆ Speed() [1/2]

◆ Speed() [2/2]

◆ TouchDown()

◆ Touched()

◆ TouchUp()

◆ updateCoordinates()

◆ Visible() [1/2]

◆ Visible() [2/2]

◆ X() [1/2]

◆ X() [2/2]

◆ Y() [1/2]

◆ Y() [2/2]

◆ Z() [1/2]

◆ Z() [2/2]

Member Data Documentation

◆ canvas

◆ DEFAULT_ORIGIN_AT_CENTER

◆ form

◆ heading

◆ headingCos

◆ headingRadians

◆ headingSin

◆ initialized

◆ interval

◆ originAtCenter

◆ speed

◆ userHeading

◆ visible

◆ xCenter

◆ xLeft

◆ yCenter

◆ yTop

◆ zLayer