Book of Scratch

Boat Race

CHALLENGE

MORE LEVELS!

Can you create additional backdrops, and allow the
player to choose between levels?
What will your new level look like? Sketch it out below
and label the finish and any obstacles.

Here’s some when space key pressed
code you next backdrop
can add to
D raw a backdrop idea… your Stage
to switch
between
levels:

101

Boat Race P ROJERCaTceC:OCMomPLpETED! lete

BOAT RACE FULL CODE LISTING Boat www.codeclub.org

BOAT

Steered using the mouse pointer,
the boat must be guided safely
around the course.

when clicked

switch costume to normal This prevents glitching GATE
go to x: -190 y: -150 when the boat gets near
forever This continually spinning gate
the mouse pointer provides a tricky obstacle.

if distance to mouse-pointer > 5 then

point towards mouse-pointer when clicked
move 1 steps forever 1 degrees

if touching color ? then turn

switch costume to hit If the boat STAGE
say Nooooo! for 1 secs touches a brown
switch costume to normal object, it switches This code uses a variable to
go to x: -190 y: -150 to its ‘hit’ costume manage the on‑screen timer.
to show a crash

if touching color ? then When the boat touches when clicked
say Yeah! for 1 secs the yellow island, all
stop all scripts are stopped

if touching color ? then set time to 0
move 3 steps forever

wait 0.1 secs
change time by 0.1

102

OBonaTtaRragceet

Now You Could Make…

You’ll find lots more cool projects at rpf.io/ccprojects, including…

ARCHERY BEAT THE GOALIE

Create an archery game, Create a football game in
in which you have to which you have to score
shoot arrows as close to as many goals as you can
the bull’s-eye as you can. in 30 seconds.

rpf.io/archery rpf.io/beat-the-goalie

ADA’S POETRY GENERATOR Wcaondtessonmipepheatsn?dy

Learn how to create Turn the page to find
randomly generated some useful scripts…
poems! You will be
using variables and
selecting random
items from lists
in this poetic
programming project.

rpf.io/ada-poetry

103

Useful Code

Useful Code

This chapter lists some useful code
that you can use in your projects

Cchoedceksonuipt ptheetss!e

Try using them in your
own projects!

This reference guide
contains useful Scratch
scripts that you can
incorporate into your own
projects. Whatever you
create, have fun coding!

104

Useful Code

DESCRIPTION CODE

Playing a sound when this sprite clicked
play sound pop
Spinning sprite

when clicked

forever 1 degrees
turn

Animating when clicked
sprite costumes

forever
next costume
wait 0.1 secs

Bouncing sprite when clicked

forever
move 1 steps
if on edge, bounce

105

Useful Code CODE

DESCRIPTION when clicked

Drawing a square clear

Keeping score pen down

repeat 4

move 50 steps

turn 90 degrees

pen up

when this sprite clicked
change score by 1

when clicked

set score to 0

Timer counting down

when clicked

set time to 10
forever

wait 1 secs
change time by -1

106

Useful Code

DESCRIPTION CODE

Timer counting up

when clicked

set time to 0
forever

wait 0.1 secs
change time by 0.1

Asking a question when this sprite clicked
and responding to ask Are you ok? and wait
the answer
if answer = yes then

say That's great! for 2 secs
else

say Oh no! for 2 secs

Storing the answer set name to answer
to a question in say join Hello name for 2 secs
a variable

Joining text together

107

Useful Code CODE

DESCRIPTION when this sprite clicked
repeat 4
Jumping sprite
change y by 20
wait 0.1 secs
change y by -20
wait 0.1 secs

Following the mouse

when clicked

forever
go to mouse-pointer

Glide to random set x coord to pick random -240 to 240
stage co-ordinates set y coord to pick random -180 to 180
glide 1 secs to x: x coord y: y coord

Movement towards when clicked
the mouse

forever
point towards mouse-pointer
move 1 steps

108

Useful Code

DESCRIPTION CODE

Movement using when left arrow key pressed
the keyboard point in direction -90
move 2 steps

or…

when clicked

forever pressed? then
if key left arrow

point in direction -90
move 2 steps

if key right arrow pressed? then
point in direction 90
move 2 steps

Check to see if when clicked
a sprite has hit
another sprite

forever

if touching other sprite ? then

say Ouch! for 2 secs

109

SPOT THE DIFFERENCE SPeuczrzlete AMensswaegress

LOST IN SPACEPuzzle Answers ENTER THE CRYPT

B EOJ EAE CAT E SPSR 1101 GHOST
RB Y E URPOAS R SOC T 2 WE R EWO L F
A B S AMPOMT L TAO R T 3 D EMON
PECRBA I ESENRELU 4 M U MM Y
TAGNML O T C AA P D I N 5 TROL L
AV S TMONK E Y T P I T E 6 DEV I L
OMOOUM I J R R E UO S U 7 BUNY I P
ALOTPNEGKUCEROT
NN E BU L AUAC L K E NR
XOX E T LAUTR I OTEM
GAR KAVONR E PU S U R
Y R E XRO E T EMS TAR E
RAYP E E XAUT E KCOR
TCA E T E CKUUSCKP E
TY R YMS SGR L OO ENE

ASTEROID MERCURY PLANET
COMET METEOR ROCKET
ECLIPSE MONKEY SATURN
GALAXY MOON STAR
JUPITER NEBULA SUPERNOVA

Code Club

Book of Scratch

Volume 1

Learn to code using Scratch,
the block-based programming
language. In each chapter you’ll find
instructions to build cool games,
animations, and interactive stories.
Your friendly robot guide will aid
you step-by‑step through each
project and give you handy tips

along the way.

Code Club is a global network of free
coding clubs where young people aged

9-13 build and share their ideas with
code. There are currently more than
12 000 clubs in over 150 countries.

codeclub.org