Download
Setup
Differences to Scratch
Changelog
Costumes, Backdrops and Sounds
Multiple Approach Design

addStage()
exit()
getDeltaTime()
getHeight()
getInstance()
getLibraryTitle()
getLibraryVersion()
getStage()
getWidth()
isDebug()
removeStage()
setDebug()
setStage()
setWhenExits()
switchStage()
transitionToStage()
whenExits()

addAnimation()
clone()
getAnimationFrame()
getAnimationInterval()
isAnimationPlayed()
playAnimation()
resetAnimation()
setAnimationFrame()
setAnimationInterval()
toString()

changeX()
changeY()
changeZoom()
getPosition()
getX()
getY()
getZoom()
resetZoom()
setPosition()
setX()
setY()
setZoom()
setZoomLimit()
toGlobalPosition()
toGlobalX()
toGlobalY()
toLocalPosition()
toLocalX()
toLocalY()

HSBtoRGB()
RGBtoHSB()
changeColor()
get()
getBlue()
getGreen()
getH()
getHSB()
getL()
getRed()
getS()
setHSB()
setRGB()

getRandom()

getObjectMapper()
load()
loadOrCreate()
loadXML()
loadXMLOrCreate()
save()
saveXML()

contains()
drawDebug()
drawShape()
getBounds()
getShape()
intersects()
translateAndRotateAndResize()

getRandom()
noise()
noiseSeed()
random()
randomInt()
randomPosition()
randomSeed()
randomVector2()
randomX()
randomY()

degreesToRadians()
radiansToDegrees()
rotateXY()

add()
angle()
clone()
distance()
distanceSq()
dot()
equals()
fromPolar()
getX()
getY()
hashCode()
length()
lengthSq()
multiply()
normalVector()
reverse()
rotateBy()
rotateTo()
sub()
toString()
unitVector()

addedToStage()
changeColor()
changeSize()
changeTransparency()
down()
draw()
eraseAll()
getColor()
getSize()
goToBackground()
goToForeground()
goToMousePointer()
goToRandomPosition()
isInBackground()
removedFromStage()
setColor()
setPosition()
setSize()
setTransparency()
stamp()
up()

execCmd()
saveFrame()
stop()

saveFrame()
snapshot()

saveFrame()
snapshot()
start()
stop()

post()
saveFrame()
start()
stop()

getName()
getPShader()
loadPShader()
set()
setName()

addPoint()
rebuildPath()

contains()
draw()
getBounds()
intersects()
rotate()
scale()
translate()

getProperty()
getPropertyBoolean()
getPropertyFloat()
getPropertyInt()
getShape()

getLayer()
getObjectGroup()
getObjectsFromLayer()
stampLayer()
stampLayerToBackground()
stampLayerToForeground()
toString()

afterMillis()
everyMillis()
forMillis()
intervalMillis()
millis()
reset()

absOf()
acosOf()
asinOf()
atanOf()
ceilingOf()
constrain()
cosOf()
eToThePowerOf()
floorOf()
lerp()
lnOf()
logOf()
map()
max()
min()
mod()
round()
sinOf()
sqrtOf()
tanOf()
tenToThePowerOf()

Examples

Cat
Clock
Donut IO
Pipes
Rainbow Vine
Random Dot
Robot
Sensing
Shader
Shakespeare
Smart Rocket
Stress Test
Tiled
Timed Dot
Timer
UI

Tutorials

Bouncing Hedgehog
Getting Started

Powered by Hyperbook

Scratch for Java

JavaDoc
Contact

Download
Setup
Differences to Scratch
Changelog
Costumes, Backdrops and Sounds
Multiple Approach Design

addStage()
exit()
getDeltaTime()
getHeight()
getInstance()
getLibraryTitle()
getLibraryVersion()
getStage()
getWidth()
isDebug()
removeStage()
setDebug()
setStage()
setWhenExits()
switchStage()
transitionToStage()
whenExits()

addAnimation()
clone()
getAnimationFrame()
getAnimationInterval()
isAnimationPlayed()
playAnimation()
resetAnimation()
setAnimationFrame()
setAnimationInterval()
toString()

changeX()
changeY()
changeZoom()
getPosition()
getX()
getY()
getZoom()
resetZoom()
setPosition()
setX()
setY()
setZoom()
setZoomLimit()
toGlobalPosition()
toGlobalX()
toGlobalY()
toLocalPosition()
toLocalX()
toLocalY()

HSBtoRGB()
RGBtoHSB()
changeColor()
get()
getBlue()
getGreen()
getH()
getHSB()
getL()
getRed()
getS()
setHSB()
setRGB()

getRandom()

getObjectMapper()
load()
loadOrCreate()
loadXML()
loadXMLOrCreate()
save()
saveXML()

contains()
drawDebug()
drawShape()
getBounds()
getShape()
intersects()
translateAndRotateAndResize()

getRandom()
noise()
noiseSeed()
random()
randomInt()
randomPosition()
randomSeed()
randomVector2()
randomX()
randomY()

degreesToRadians()
radiansToDegrees()
rotateXY()

add()
angle()
clone()
distance()
distanceSq()
dot()
equals()
fromPolar()
getX()
getY()
hashCode()
length()
lengthSq()
multiply()
normalVector()
reverse()
rotateBy()
rotateTo()
sub()
toString()
unitVector()

addedToStage()
changeColor()
changeSize()
changeTransparency()
down()
draw()
eraseAll()
getColor()
getSize()
goToBackground()
goToForeground()
goToMousePointer()
goToRandomPosition()
isInBackground()
removedFromStage()
setColor()
setPosition()
setSize()
setTransparency()
stamp()
up()

execCmd()
saveFrame()
stop()

saveFrame()
snapshot()

saveFrame()
snapshot()
start()
stop()

post()
saveFrame()
start()
stop()

getName()
getPShader()
loadPShader()
set()
setName()

addPoint()
rebuildPath()

contains()
draw()
getBounds()
intersects()
rotate()
scale()
translate()

getProperty()
getPropertyBoolean()
getPropertyFloat()
getPropertyInt()
getShape()

getLayer()
getObjectGroup()
getObjectsFromLayer()
stampLayer()
stampLayerToBackground()
stampLayerToForeground()
toString()

afterMillis()
everyMillis()
forMillis()
intervalMillis()
millis()
reset()

absOf()
acosOf()
asinOf()
atanOf()
ceilingOf()
constrain()
cosOf()
eToThePowerOf()
floorOf()
lerp()
lnOf()
logOf()
map()
max()
min()
mod()
round()
sinOf()
sqrtOf()
tanOf()
tenToThePowerOf()

Examples

Cat
Clock
Donut IO
Pipes
Rainbow Vine
Random Dot
Robot
Sensing
Shader
Shakespeare
Smart Rocket
Stress Test
Tiled
Timed Dot
Timer
UI

Tutorials

Bouncing Hedgehog
Getting Started

Powered by Hyperbook

Stage::randomBackdrop()
Syntax
Java
Return

Stage::randomBackdrop()

Switch to a random backdrop.

Syntax

Java

.randomBackdrop()

Return

void

randomBackdrop()

Create Shareable URL

Standalone Mode

Select Sections

Stage::randomBackdrop() Syntax Java Return

previousBackdrop()remove()

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