Scratch File Format (2.0)/Block Selectors

The following is a list of block selectors and their corresponding blocks. Block selectors are used in the Scratch File Format (2.0).

Only blocks which can be loaded in the most recent version of Scratch 2.0 are listed.

Motion Blocks

Block	Selector
move () steps	forward:
turn cw () degrees	turnRight:
turn ccw () degrees	turnLeft:
point in direction ( v)	heading:
point towards [ v]	pointTowards:
go to x: () y: ()	gotoX:y:
go to [ v]	gotoSpriteOrMouse:
glide () secs to x: () y: ()	glideSecs:toX:y:elapsed:from:
change x by ()	changeXposBy:
set x to ()	xpos:
change y by ()	changeYposBy:
set y to ()	ypos:
if on edge, bounce	bounceOffEdge
set rotation style [ v]	setRotationStyle
(x position)	xpos
(y position)	ypos
(direction)	heading

Events Blocks

Block	Opcode
when gf clicked	whenGreenFlag
when [ v] key pressed	whenKeyPressed
when this sprite clicked	whenClicked
when backdrop switches to [ v]	whenSceneStarts
when [ v] > ()	whenSensorGreaterThan
when I receive [ v]	whenIReceive
broadcast [ v]	broadcast:
broadcast [ v] and wait	doBroadcastAndWait

Looks Blocks

Block	Opcode
say [] for () seconds	say:duration:elapsed:from:
say []	say:
think [] for () seconds	think:duration:elapsed:from:
think []	think:
show	show
hide	hide
switch costume to [ v]	lookLike:
next costume	nextCostume
switch backdrop to [ v]	startScene
switch backdrop to [ v] and wait	startSceneAndWait
next backdrop	nextScene
change [ v] effect by ()	changeGraphicEffect:by:
set [ v] effect to ()	setGraphicEffect:to:
clear graphic effects	filterReset
change size by ()	changeSizeBy:
set size to ()%	setSizeTo:
go to front	comeToFront
go back () layers	goBackByLayers:
costume #	costumeIndex
backdrop name	sceneName
backdrop #	backgroundIndex
size	scale

Control Blocks

Block	Opcode
wait () secs	wait:elapsed:from:
repeat ()	doRepeat
forever	doForever
if <> then	doIf
if <> then else	doIfElse
wait until <>	doWaitUntil
repeat until <>	doUntil
stop [ v]	stopScripts
when I start as a clone	whenCloned
create clone of [ v]	createCloneOf
delete this clone	deleteClone

Sound Blocks

Block	Opcode
play sound [ v]	playSound:
play sound [ v] until done	doPlaySoundAndWait
stop all sounds	stopAllSounds
play drum ( v) for () beats	playDrum
rest for () beats	rest:elapsed:from:
play note ( v) for () beats	noteOn:duration:elapsed:from:
set instrument to ( v)	instrument:
change volume by ()	changeVolumeBy:
set volume to ()%	setVolumeTo:
volume	volume
change tempo by ()	changeTempoBy:
set tempo to () bpm	setTempoTo:
tempo	tempo

Sensing Blocks

Block	Opcode
<touching [ v]?>	touching:
<touching color [#000000]?>	touchingColor:
color [#000000] is touching [#000000]?	color:sees:
distance to [ v]	distanceTo:
ask [] and wait	doAsk
answer	answer
<key [ v] pressed?>	keyPressed:
<mouse down?>	mousePressed
(mouse x)	mouseX
(mouse y)	mouseY
(loudness)	soundLevel
video [ v] on [ v]	senseVideoMotion
turn video [ v]	setVideoState
set video transparency to ()%	setVideoTransparency
(timer)	timer
reset timer	timerReset
[ v] of [ v]	getAttribute:of:
current [ v]	timeAndDate
(days since 2000)	timestamp
(username)	getUserName

Pen Extension

Block	Opcode
clear	clearPenTrails
stamp	stampCostume
pen down	putPenDown
pen up	putPenUp
set pen color to [#FF0000]	penColor:
change pen color by ()	changePenHueBy:
set pen color to ()	setPenHueTo:
change pen shade by ()	changePenShadeBy:
set pen shade to ()	setPenShadeTo:
change pen size by ()	changePenSizeBy:
set pen size to ()	penSize:

Operators Blocks

Block	Opcode
() + ()	+
() - ()	-
() * ()	*
() / ()	/
pick random () to ()	randomFrom:to:
[] \< []	<
[] = []	=
[] > []	>
<> and <>	&
<> or <>	|
not <>	not
join [] []	concatenate:with:
letter () of []	letter:of:
length of []	stringLength:
() mod ()	%
round ()	rounded
[ v] of ():: operators	computeFunction:of:

Variables Blocks

Variables Blocks (subcategory)

Block	Opcode
(:: variables)	readVariable
set [ v] to []	setVar:to:
change [ v] by ()	changeVar:by:
show variable [ v]	showVariable:
hide variable [ v]	hideVariable:

List Blocks

Block	Opcode
(:: list)	append:toList:
add [] to [ v]	contentsOfList:
delete ( v) of [ v]	deleteLine:ofList:
insert [] at ( v) of [ v]	insert:at:ofList:
replace item ( v) of [ v] with []	setLine:ofList:to:
item ( v) of [ v]	getLine:ofList:
length of [ v]	lineCountOfList:
[ v] contains []?	list:contains:
show list [ v]	showList:
hide list [ v]	hideList:

My Blocks

Block	Opcode
define	procDef
:: custom	call
(:: custom), <:: custom>	getParam

Obsolete Blocks

Block	Opcode
play drum () for () beats:: obsolete	drum:duration:elapsed:from:
set instrument to ():: obsolete	midiInstrument:
<loud?:: obsolete>	isLoud
(noop:: obsolete)	COUNT
clear counter:: obsolete	CLR_COUNT
incr counter:: obsolete	INCR_COUNT
for each [ v] in [] { }:: obsolete	doForLoop
while <> { }:: obsolete	doWhile
all at once { }:: obsolete	warpSpeed
scroll right ():: obsolete	scrollRight
scroll up ():: obsolete	scrollUp
align scene [ v]:: obsolete	scrollAlign
(x scroll:: obsolete)	xScroll
(y scroll:: obsolete)	yScroll
hide all sprites:: obsolete	hideAll
(user id:: obsolete)	getUserId