This article is a list of block opcodes, which are strings naming a block in the Scratch File Format.
Motion Blocks
Block | Opcode |
---|---|
move () steps
|
motion_movesteps
|
turn cw () degrees
|
motion_turnright
|
turn ccw () degrees
|
motion_turnleft
|
go to ( v)
|
motion_goto
|
go to x: () y: ()
|
motion_gotoxy
|
glide () secs to ( v)
|
motion_glideto
|
glide () secs to x: () y: ()
|
motion_glidesecstoxy
|
point in direction ()
|
motion_pointindirection
|
point towards ( v)
|
motion_pointtowards
|
change x by ()
|
motion_changexby
|
set x to ()
|
motion_setx
|
change y by ()
|
motion_changeyby
|
set y to ()
|
motion_sety
|
if on edge, bounce
|
motion_ifonedgebounce
|
set rotation style [ v]
|
motion_setrotationstyle
|
(x position)
|
motion_xposition
|
(y position)
|
motion_yposition
|
(direction)
|
motion_direction
|
Looks Blocks
Block | Opcode |
---|---|
say () for () seconds
|
looks_sayforsecs
|
say ()
|
looks_say
|
think () for () seconds
|
looks_thinkforsecs
|
think ()
|
looks_think
|
switch costume to ( v)
|
looks_switchcostumeto
|
next costume
|
looks_nextcostume
|
switch backdrop to ( v)
|
looks_switchbackdropto
|
switch backdrop to ( v) and wait
|
looks_switchbackdroptoandwait
|
next backdrop
|
looks_nextbackdrop
|
change size by ()
|
looks_changesizeby
|
set size to ()%
|
looks_setsizeto
|
change [ v] effect by ()
|
looks_changeeffectby
|
set [ v] effect to ()
|
looks_seteffectto
|
clear graphic effects
|
looks_cleargraphiceffects
|
show
|
looks_show
|
hide
|
looks_hide
|
go to [ v] layer
|
looks_gotofrontback
|
go [ v] () layers
|
looks_goforwardbackwardlayers
|
costume [ v]
|
looks_costumenumbername
|
backdrop [ v]
|
looks_backdropnumbername
|
size
|
looks_size
|
Sound Blocks
Block | Opcode |
---|---|
play sound ( v) until done
|
sound_playuntildone
|
start sound ( v)
|
sound_play
|
stop all sounds
|
sound_stopallsounds
|
change [ v] effect by ():: sound
|
sound_changeeffectby
|
set [ v] effect to ():: sound
|
sound_seteffectto
|
clear sound effects
|
sound_cleareffects
|
change volume by ()
|
sound_changevolumeby
|
set volume to ()%
|
sound_setvolumeto
|
(volume)
|
sound_volume
|
Events Blocks
Block | Opcode |
---|---|
when gf clicked
|
event_whenflagclicked
|
when [ v] key pressed
|
event_whenkeypressed
|
when this sprite clicked
|
event_whenthisspriteclicked
|
when stage clicked
|
event_whenstageclicked
|
when backdrop switches to [ v]
|
event_whenbackdropswitchesto
|
when [ v] > ()
|
event_whengreaterthan
|
when I receive [ v]
|
event_whenbroadcastreceived
|
broadcast ( v)
|
event_broadcast
|
broadcast ( v) and wait
|
event_broadcastandwait
|
Control Blocks
Block | Opcode |
---|---|
wait () seconds
|
control_wait
|
repeat ()
|
motion_turnright
|
forever
|
control_forever
|
if <> then
|
control_if
|
if <> then else |
control_if_else
|
wait until <>
|
control_wait_until
|
repeat until <>
|
control_repeat_until
|
stop [ v]
|
control_stop
|
when I start as a clone
|
control_start_as_clone
|
create clone of ( v)
|
control_create_clone_of
|
delete this clone
|
control_delete_this_clone
|
Sensing Blocks
Block | Opcode |
---|---|
<touching ( v)?>
|
sensing_touchingobject
|
<touching color (#000000)?>
|
sensing_touchingcolor
|
color (#000000) is touching (#000000)?
|
sensing_coloristouchingcolor
|
(distance to ( v))
|
sensing_distanceto
|
ask () and wait
|
sensing_askandwait
|
(answer)
|
sensing_answer
|
<key ( v) pressed?>
|
sensing_keypressed
|
<mouse down?>
|
sensing_mousedown
|
(mouse x)
|
sensing_mousex
|
(mouse y)
|
sensing_mousey
|
set drag mode [ v]
|
sensing_setdragmode
|
(loudness)
|
sensing_loudness
|
(timer)
|
sensing_timer
|
reset timer
|
sensing_resettimer
|
[ v] of ( v)
|
sensing_of
|
current [ v]
|
sensing_current
|
(days since 2000)
|
sensing_dayssince2000
|
(username)
|
sensing_username
|
Operators Blocks
Block | Opcode |
---|---|
()+()
|
operator_add
|
()-()
|
operator_subtract
|
()*()
|
operator_multiply
|
()/()
|
operator_divide
|
(pick random () to ())
|
operator_random
|
<()>()>
|
operator_gt
|
<()<()>
|
operator_lt
|
<()=()>
|
operator_equals
|
<<>and<>>
|
operator_and
|
<<>or<>>
|
operator_or
|
<not<>>
|
operator_not
|
(join()())
|
operator_join
|
(letter () of ())
|
operator_letter_of
|
(length of ())
|
operator_length
|
<() contains ()?>
|
operator_contains
|
(()mod())
|
operator_mod
|
(round())
|
operator_round
|
[ v] of ()::operators
|
operator_mathop
|
Variables Blocks
Variables Blocks (subcategory)
Block | Opcode |
---|---|
( ::variables)
|
data_variable
|
set [ v] to ()
|
data_setvariableto
|
change [ v] by ()
|
data_changevariableby
|
show variable [ v]
|
data_showvariable
|
hide variable [ v]
|
data_hidevariable
|
List Blocks
Block | Opcode |
---|---|
( ::list)
|
data_listcontents
|
add () to [ v]
|
data_addtolist
|
delete () of [ v]
|
data_deleteoflist
|
delete all of [ v]
|
data_deletealloflist
|
insert () at () of [ v]
|
data_insertatlist
|
replace item () of [ v] with ()
|
data_replaceitemoflist
|
(item () of [ v])
|
data_itemoflist
|
(item # of () in [ v])
|
data_itemnumoflist
|
(length of [ v])
|
data_lengthoflist
|
<[ v] contains ()?>
|
data_listcontainsitem
|
show list [ v]
|
data_showlist
|
hide list [ v]
|
data_hidelist
|
My Blocks
Block | Opcode |
---|---|
define
|
procedures_definition
|
:: custom
|
procedures_call
|
(:: custom)
|
argument_reporter_string_number
|
< :: custom>
|
argument_reporter_boolean
|
Music Extension
Block | Opcode |
---|---|
play drum ( v) for () beats
|
music_playDrumForBeats
|
rest for () beats
|
music_restForBeats
|
play note () for () beats
|
music_playNoteForBeats
|
set instrument to ( v)
|
music_setInstrument
|
set tempo to ()
|
music_setTempo
|
change tempo by ()
|
music_changeTempo
|
(tempo)
|
music_getTempo
|
Pen Extension
Block | Opcode |
---|---|
erase all
|
pen_clear
|
stamp
|
pen_stamp
|
pen down
|
pen_penDown
|
pen up
|
pen_penUp
|
set pen color to (#000000)
|
pen_setPenColorToColor
|
change pen ( v) by ()
|
pen_changePenColorParamBy
|
set pen ( v) to ()
|
pen_setPenColorParamTo
|
change pen size by ()
|
pen_changePenSizeBy
|
set pen size to ()
|
pen_setPenSizeTo
|
Video Sensing Extension
Block | Opcode |
---|---|
when video motion > ()
|
videoSensing_whenMotionGreaterThan
|
video ( v) on ( v)
|
videoSensing_videoOn
|
turn video ( v)
|
videoSensing_videoToggle
|
set video transparency to ()
|
videoSensing_setVideoTransparency
|
Text to Speech Extension
Block | Opcode |
---|---|
speak ()
|
text2speech_speakAndWait
|
set voice to ( v)
|
text2speech_setVoice
|
set language to ( v)
|
text2speech_setLanguage
|
Translate Extension
Block | Opcode |
---|---|
(translate () to ( v))
|
translate_getTranslate
|
(language)
|
translate_getViewerLanguage
|
Makey Makey Extension
Block | Opcode |
---|---|
when ( v) key pressed:: makeymakey
|
makeymakey_whenMakeyKeyPressed
|
when ( v) pressed in order
|
makeymakey_whenCodePressed
|
micro:bit Extension
Block | Opcode |
---|---|
when ( v) button pressed
|
microbit_whenButtonPressed
|
<( v) button pressed?>
|
microbit_isButtonPressed
|
when ( v):: microbit
|
microbit_whenGesture
|
display ( v)
|
microbit_displaySymbol
|
display text ()
|
microbit_displayText
|
clear display
|
microbit_displayClear
|
when tilted ( v)
|
microbit_whenTilted
|
<tilted ( v)?>
|
microbit_isTilted
|
(tilt angle ( v))
|
microbit_getTiltAngle
|
when pin ( v) connected
|
microbit_whenPinConnected
|
LEGO MINDSTORMS EV3 Extension
Block | Opcode |
---|---|
motor ( v) turn this way for () seconds
|
ev3_motorTurnClockwise
|
motor ( v) turn that way for () seconds
|
ev3_motorTurnCounterClockwise
|
motor ( v) set power ()%
|
ev3_motorSetPower
|
(motor ( v) position)
|
ev3_getMotorPosition
|
button ( v) pressed
|
ev3_whenButtonPressed
|
when distance \< ()
|
ev3_whenDistanceLessThan
|
when brightness \< ()
|
ev3_whenBrightnessLessThan
|
<button ( v) pressed?>
|
ev3_buttonPressed
|
(distance)
|
ev3_getDistance
|
(brightness)
|
ev3_getBrightness
|
beep note () for () secs
|
ev3_beep
|
LEGO BOOST Extension
Block | Opcode |
---|---|
turn motor ( v) for () seconds
|
boost_motorOnFor
|
turn motor ( v) for () rotations
|
boost_motorOnForRotation
|
turn motor ( v) on
|
boost_motorOn
|
turn motor ( v) off
|
boost_motorOff
|
set motor ( v) speed to ()%
|
boost_setMotorPower
|
set motor ( v) direction ( v)
|
boost_setMotorDirection
|
(motor ( v) position:: boost)
|
boost_getMotorPosition
|
when ( v) brick seen
|
boost_whenColor
|
<seeing ( v) brick?>
|
boost_seeingColor
|
when tilted ( v):: boost
|
boost_whenTilted
|
(tilt angle ( v):: boost)
|
boost_getTiltAngle
|
set light color to ():: boost
|
boost_setLightHue
|
LEGO Education WeDo 2.0 Extension
Block | Opcode |
---|---|
turn ( v) on for () seconds
|
wedo2_motorOnFor
|
turn ( v) on
|
wedo2_motorOn
|
turn ( v) off
|
wedo2_motorOff
|
set ( v) power to ()
|
wedo2_startMotorPower
|
set ( v) direction to ( v)
|
wedo2_setMotorDirection
|
set light color to ()
|
wedo2_setLightHue
|
when distance ( v) ()
|
wedo2_whenDistance
|
when tilted ( v):: wedo
|
wedo2_whenTilted
|
(distance:: wedo)
|
wedo2_getDistance
|
<tilted ( v):: wedo>
|
wedo2_isTilted
|
(tilt angle ( v):: wedo)
|
wedo2_getTiltAngle
|
Go Direct Force & Acceleration Extension
Block | Opcode |
---|---|
when ( v)
|
gdxfor_whenGesture
|
when force sensor ( v)
|
gdxfor_whenForcePushedOrPulled
|
(force)
|
gdxfor_getForce
|
when tilted ( v):: gdxfor
|
gdxfor_whenTilted
|
<tilted ( v)?:: gdxfor>
|
gdxfor_isTilted
|
tilt angle ( v):: gdxfor
|
gdxfor_getTilt
|
<falling?>
|
gdxfor_isFreeFalling
|
(spin speed ( v))
|
gdxfor_getSpinSpeed
|
(acceleration ( v))
|
gdxfor_getAcceleration
|
CoreEx Extension
Block | Opcode |
---|---|
(example block:: extension)
|
coreExample_exampleOpcode
|
block with image @turnRight inline:: extension
|
coreExample_exampleWithInlineImage
|
Hidden Blocks
Internal Drop-Down Reporters
Parent Block(s) | Internal Reporter | Opcode |
---|---|---|
go to ( v)
|
([ v]:: motion)
|
motion_goto_menu
|
glide () secs to ( v)
|
([ v]:: motion)
|
motion_glideto_menu
|
point towards ( v)
|
([ v]:: motion)
|
motion_pointtowards_menu
|
switch costume to ( v)
|
([ v]:: looks)
|
looks_costume
|
switch backdrop to ( v) , switch backdrop to ( v) and wait
|
([ v]:: looks)
|
looks_backdrops
|
play sound ( v) until done , play sound ( v)
|
([ v]:: sound)
|
sound_sounds_menu
|
broadcast ( v) , broadcast ( v) and wait
|
([ v]:: events)
|
event_broadcast_menu
|
create clone of ( v)
|
([ v]:: control)
|
control_create_clone_of_menu
|
<touching ( v)>
|
([ v]:: sensing)
|
sensing_touchingobjectmenu
|
(distance to ( v))
|
([ v]:: sensing)
|
sensing_distancetomenu
|
<key ( v) pressed?>
|
([ v]:: sensing)
|
sensing_keyoptions
|
[ v] of ( v)
|
([ v]:: sensing)
|
sensing_of_object_menu
|
play drum ( v) for () beats
|
([ v]:: extension)
|
music_menu_DRUM
|
set instrument to ( v)
|
([ v]:: extension)
|
music_menu_INSTRUMENT
|
change pen ( v) by () , set pen ( v) to ()
|
([ v]:: extension)
|
pen_menu_colorParam
|
video ( v) on ( v) (first drop-down input)
|
([ v]:: extension)
|
videoSensing_menu_ATTRIBUTE
|
video ( v) on ( v) (second drop-down input)
|
([ v]:: extension)
|
videoSensing_menu_SUBJECT
|
turn video ( v)
|
([ v]:: extension)
|
videoSensing_menu_VIDEO_STATE
|
set voice to ( v)
|
([ v]:: extension)
|
text2speech_menu_voices
|
set language to ( v)
|
([ v]:: extension)
|
text2speech_menu_languages
|
translate () to ( v)
|
([ v]:: extension)
|
translate_menu_languages
|
when ( v) key pressed:: makeymakey
|
([ v]:: extension)
|
makeymakey_menu_KEY
|
when ( v) pressed in order
|
([ v]:: extension)
|
makeymakey_menu_SEQUENCE
|
when ( v) button pressed , ( v) button pressed?
|
([ v]:: extension)
|
microbit_menu_buttons
|
when ( v):: microbit
|
([ v]:: extension)
|
microbit_menu_gestures
|
when tilted ( v) , tilted ( v)?
|
([ v]:: extension)
|
microbit_menu_tiltDirectionAny
|
tilt angle ( v)
|
([ v]:: extension)
|
microbit_menu_tiltDirection
|
when pin ( v) connected
|
([ v]:: extension)
|
microbit_menu_touchPins
|
motor ( v) turn this way for () seconds , motor ( v) turn that way for () seconds , motor ( v) set power ()% , motor ( v) position
|
([ v]:: extension)
|
ev3_menu_motorPorts
|
when button ( v) pressed , <button ( v) pressed?>
|
([ v]:: extension)
|
ev3_menu_sensorPorts
|
turn motor ( v) for () seconds , turn motor ( v) for () rotations , turn motor ( v) on , turn motor ( v) off , set motor ( v) speed to ()% , set motor ( v) direction ( v) (first drop-down input)
|
([ v]:: extension)
|
boost_menu_MOTOR_ID
|
set motor ( v) direction ( v) (second drop-down input)
|
([ v]:: extension)
|
boost_menu_MOTOR_DIRECTION
|
motor ( v) position:: boost
|
([ v]:: extension)
|
boost_menu_MOTOR_REPORTER_ID
|
when ( v) brick seen , <seeing ( v) brick?>
|
([ v]:: extension)
|
boost_menu_COLOR
|
when tilted ( v):: boost
|
([ v]:: extension)
|
boost_menu_TILT_DIRECTION_ANY
|
tilt angle ( v):: boost
|
([ v]:: extension)
|
boost_menu_TILT_DIRECTION
|
turn ( v) on for () seconds , turn ( v) on , turn ( v) off , set ( v) power to () , set ( v) direction to ( v) (first drop-down input)
|
([ v]:: extension)
|
wedo2_menu_MOTOR_ID
|
set ( v) direction to ( v) (second drop-down input)
|
([ v]:: extension)
|
wedo2_menu_MOTOR_DIRECTION
|
when distance ( v) ()
|
([ v]:: extension)
|
wedo2_menu_OP
|
when tilted ( v):: wedo , <tilted ( v)?:: wedo>
|
([ v]:: extension)
|
wedo2_menu_TILT_DIRECTION_ANY
|
tilt angle ( v):: wedo
|
([ v]:: extension)
|
wedo2_menu_TILT_DIRECTION
|
when ( v)
|
([ v]:: extension)
|
gdxfor_menu_gestureOptions
|
when force sensor ( v)
|
([ v]:: extension)
|
gdxfor_menu_pushPullOptions
|
when tilted ( v):: gdxfor , <tilted ( v)?:: gdxfor>
|
([ v]:: extension)
|
gdxfor_menu_tiltAnyOptions
|
tilt angle ( v):: gdxfor
|
([ v]:: extension)
|
gdxfor_menu_tiltOptions
|
spin speed ( v) , acceleration ( v)
|
([ v]:: extension)
|
gdxfor_menu_axisOptions
|
Hidden Internal Drop-Down Reporters
Parent Block(s) | Internal Reporter | Opcode |
---|---|---|
when this sprite touches ( v):: events hat
|
([ v]:: events)
|
event_touchingobjectmenu
|
None | ([ v]:: extension)
|
microbit_menu_pinState
|
Special Internal Input Blocks
Parent Block(s) | Internal Reporter | Opcode |
---|---|---|
define
|
:: custom
|
procedures_prototype
|
::boolean #fff
|
argument_editor_boolean
| |
::ring #fff
|
argument_editor_string_number
| |
play note () for () beats (first input), beep note () for () secs (first input), play note () for () seconds:: wedo (first input)
|
note
| |
display ( v)
|
matrix
|