Scratch 2 Brain Game - Mrs Armenio's Web class...end of each game. 8. You’ll also need to stop...

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ActivityChecklist

TestyourProject

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IntroductionInthisprojectyou’lllearnhowtocreateatimestablequiz,inwhichyou

havetogetasmanyanswerscorrectasyoucanin30seconds.

FollowtheseINSTRUCTIONSonebyone

ClickonthegreenflagtoTESTyourcode

MakesuretoSAVEyourworknow

BrainGameScratch

2



Step1:Creatingquestions

Let’sstartbycreatingrandomquestionsfortheplayertoanswer.

ActivityChecklist

1. StartanewScratchproject,anddeletethecatspritesothat

yourprojectisempty.YoucanfindtheonlineScratcheditor

atjumpto.cc/scratch-new.

2. Chooseacharacterandabackdropforyourgame.Youcan

chooseanyyoulike!Here’sanexample:

3. Create2newvariablescalled number1 and number2 .These

variableswillstorethe2numbersthatwillbemultiplied

together.



4. Addcodetoyourcharacter,tosetbothofthesevariablesto

a random numberbetween2and12.

5. Youcanthenasktheplayerfortheanswer,andletthemknow

iftheywererightorwrong.

6. Testyourprojectfully,byansweringonequestioncorrectly

andonewiththewronganswer.

7. Adda forever looparoundthiscode,sothattheplayeris

askedlotsofquestions.

8. Createacountdowntimeronthestage,usingavariablecalled

time .The‘Balloons’projecthasinstructionsformakinga

timer(instep6)ifyouneedhelp!

9. Testyourprojectagain-youshouldbeabletocontinueasking

questionsuntilthetimerunsout.



Challenge:Changingcostumes

Canyouchangeyourcharacter’scostumes,sothatthey

respondtotheplayer’sanswer?

Challenge:Addingascore

Canyouaddascoretoyourgame?Youcanaddapointfor

everycorrectanswer.Ifyou’refeelingmean,youcouldeven

resettheplayer’sscoreto0iftheygetaquestionwrong!

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Saveyourproject



Step2:Multiplegames

Let’sadda‘play’buttontoyourgame,sothatyoucanplaylotsoftimes.

ActivityChecklist

1. Createanew‘Play’buttonsprite,whichyourplayerwillclickto

startanewgame.Youcandrawityourself,oreditasprite

fromtheScratchlibrary.

2. Addthiscodetoyournewbutton.

Thiscodeshowstheplaybuttonwhenyourprojectisstarted.

Whenthebuttonisclicked,itishiddenandthenbroadcastsa

messagethatwillstartthegame.

3. You’llneedtoedityourcharacter’scode,sothatthegame

startswhentheyreceivethe start message,andnotwhen

theflagisclicked.



Replacethe whenflagclicked codewith whenIreceive

start .

4. Clickthegreenflagandthenclickyournewplaybuttontotest

it.Youshouldseethatthegamedoesn’tstartuntilthebutton

isclicked.

5. Didyounoticethatthetimerstartswhenthegreenflagis

clicked,andnotwhenthegamestarts?

Canyoufixthisproblem?

6. Clickonthestage,andreplacethe stopall blockwithan

end message.



7. Youcannowaddcodetoyourbutton,toshowitagainatthe

endofeachgame.

8. You’llalsoneedtostopyourcharacteraskingquestionsatthe

endofeachgame:

9. Testyourplaybuttonbyplayingacoupleofgames.Youshould

noticethattheplaybuttonshowsaftereachgame.Tomake

testingeasier,youcanshorteneachgame,sothatitonlylasts

afewseconds.

10. Youcanevenchangehowthebuttonlookswhenthemouse

hoversoverit.



Challenge:Startscreen

Canyouaddanotherbackdroptoyourstage,whichwillbecome

yourgame’sstartscreen?Youcanusethe whenIreceive

start and whenIreceiveend blockstoswitchbetween

backdrops.

Youcanalsoshowandhideyourcharacter,andevenshowand

hideyourtimerbyusingtheseblocks:

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Saveyourproject



Step3:Addinggraphics

Insteadofyourcharacterjustsaying yes!:) or nope:( totheplayer,let’s

addsomegraphicsthatwilllettheplayerknowhowtheyaredoing.

Createanewspritecalled‘Result’,containingbotha‘tick’anda‘cross’

costume.

Changeyourcharacter’scode,sothatinsteadoftellingtheplayerhowthey

did,itbroadcasts correct and wrong messagesinstead.

Youcannowusethesemessagestoshowthe‘tick’or‘cross’costume.Add

thiscodetoyournew‘Result’sprite:



Testoutyourgameagain.Youshouldseeatickwheneveryougeta

questioncorrect,andacrosswheneveryougetonewrong!

Haveyounoticedthatthecodefor whenIreceivecorrect and whenI

receivewrong isnearlyidentical?Let’screateafunctiontomakeiteasier

foryoutomakechangestoyourcode.

Onyour‘Result’sprite,click MoreBlocks ,andthen‘MakeaBlock’.Create

anewfunctioncalled animate .



Youcanthenaddtheanimationcodeintoyournewanimationfunction,and

thenjustusethefunctiontwice:

Now,ifyouwanttoshowthetickandthecrossforalongerorshorter

time,youonlyneedtomakeonechangetoyourcode.Tryit!

Insteadofjustshowingandhidingthetickandthecross,youcouldchange

youranimationfunction,sothatthegraphicsfadein.



Challenge:Improvedanimation

Canyouimprovetheanimationofyourgraphics?Youcould

codethetickandcrosssothattheyfadeoutaswellasfadein.

Or,youcoulduseothercooleffects:

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Saveyourproject



Challenge:Soundandmusic

Canyouaddsoundeffectsandmusictoyourgame?For

example:

Playingasoundwhentheplayergetsananswerrightor

wrong;

Addingatickingsoundtoyourcountdowntimer;

Playingasoundwhenthetimeisup;

Youcouldalsoconstantlyplaymusiconaloop(ifyou’re

notsurehowtodothis,step4ofthe‘RockBand’project

willhelpyou).

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Challenge:Raceto10points

Canyouchangeyourgame,sothatinsteadofansweringas

manyquestionsastheycanin30seconds,theplayerhasto

seehowquicklytheycanget10questionscorrect?

Todothis,you’llonlyneedtochangeyourtimercode.Canyou

seewhatneedstobechanged?

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Challenge:Instructionscreen

Canyouaddaninstructionsscreentoyourgame,tellingyour

playerhowtoplaythegame?You’llneedan‘Instructions’

button,andanotherstagebackground.

Youmayalsoneeda‘Back’buttontotakeyoutothemain

menu.

Saveyourproject

Scratch 2 Brain Game - Mrs Armenio's Web class...end of each game. 8. You’ll also need to stop...

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