<snapdata remixID="12352329"><project name="U5L2S2-Simulation Student" app="Snap! 8.2, https://snap.berkeley.edu" version="2"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><scenes select="1"><scene name="U5L2S2-Simulation Student"><notes></notes><hidden></hidden><headers></headers><code></code><blocks><block-definition s="simulate disease, population: %&apos;population&apos; percent infected: %&apos;percent initially infected&apos; speed: %&apos;speed&apos;" type="reporter" category="other"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input><input type="%n"></input></inputs><script><custom-block s="initialize simulation %n %n %n"><block var="population"/><block var="percent initially infected"/><block var="speed"/></custom-block><block s="show"></block><block s="doRepeat"><block var="population"/><script><block s="createClone"><l><option>myself</option></l></block></script></block><block s="hide"></block><block s="doSetVar"><l>start time</l><block s="reportDate"><l><option>time in milliseconds</option></l></block></block><block s="doSetVar"><l>running</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doWaitUntil"><block s="reportVariadicEquals"><list><block var="number infected"/><block var="population"/></list></block></block><block s="doSetVar"><l>elapsed time</l><block s="reportQuotient"><block s="reportDifference"><block s="reportDate"><l><option>time in milliseconds</option></l></block><block var="start time"/></block><l>1000</l></block></block><block s="doBroadcast"><l>vanish</l><list></list></block><block s="doReport"><block var="elapsed time"/></block></script><scripts><script x="321" y="166.83333333333348"><block s="doIf"><block s="reportVariadicLessThan"><list><block s="reportRandom"><l>0</l><l>99</l></block><block var="percent initially infected"/></list></block><script><block s="doSetVar"><l>infected?</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doChangeVar"><l>number infected</l><l>1</l></block><block s="doSwitchToCostume"><l>sick</l></block></script></block></script></scripts></block-definition><block-definition s="average time for disease spread with population size: %&apos;size&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%n"></input></inputs><script><block s="bubble"><l></l></block><block s="doReport"><block s="reportQuotient"><block s="reportCombine"><block s="reportMap"><block s="reifyReporter"><autolambda><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><block var="size"/><l>10</l><l>2</l></custom-block></autolambda><list></list></block><block s="reportNumbers"><l>1</l><l>10</l></block></block><block s="reifyReporter"><autolambda><block s="reportVariadicSum"><list><l></l><l></l></list></block></autolambda><list></list></block></block><l>10</l></block></block></script></block-definition><block-definition s="initialize clone" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doIf"><l/><script><block s="doChangeVar"><l>number infected</l><l>1</l></block><block s="doSetVar"><l>infected?</l><l></l></block><block s="doSwitchToCostume"><l>sick</l></block></script></block><block s="doGotoObject"><l><option>random position</option></l></block><block s="doFaceTowards"><l><option>random position</option></l></block></script></block-definition><block-definition s="touching infected person?" type="predicate" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doForEach"><l>item</l><block s="reportGet"><l><option>neighbors</option></l></block><script><block s="doIf"><block s="reportVariadicAnd"><list><block s="reportTouchingObject"><block var="item"/></block><block s="reportVariadicAnd"><list><block s="reportNot"><block var="infected?"/></block><block s="reportAskFor"><block var="item"/><block s="reifyReporter"><autolambda><block var="infected?"/></autolambda><list></list></block><list></list></block></list></block></list></block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script></block></script></block><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></block></script></block-definition><block-definition s="initialize simulation %&apos;pop&apos; %&apos;inf&apos; %&apos;sp&apos;" type="command" category="other"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input><input type="%n"></input></inputs><script><block s="doSetVar"><l>population</l><block var="pop"/><comment w="216.66666666666666" collapsed="true">Make global so &quot;when I start&quot; can use it.</comment></block><block s="doSetVar"><l>percent initially infected</l><block var="inf"/></block><block s="doSetVar"><l>speed</l><block var="sp"/></block><block s="doSetVar"><l>infected?</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSetVar"><l>running</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSetVar"><l>number infected</l><l>0</l></block><block s="doSwitchToCostume"><l>well</l></block><block s="setScale"><l>50</l></block></script></block-definition></blocks><stage name="Stage" width="480" height="360" costume="0" color="255,255,255,1" tempo="60" threadsafe="false" penlog="false" volume="100" pan="0" lines="round" ternary="false" hyperops="true" codify="false" inheritance="true" sublistIDs="false" id="203"><pentrails>data:image/png;base64,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</pentrails><costumes><list struct="atomic" id="204"></list></costumes><sounds><list struct="atomic" id="205"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites select="1"><sprite name="Sprite" idx="1" x="-162.70748299319723" y="102.04894073719538" heading="289.31999999999994" scale="0.5" volume="100" pan="0" rotation="0" draggable="true" costume="1" color="80,80,80,1" pen="tip" id="210"><costumes><list id="211"><item><ref mediaID="Sprite_cst_well"></ref></item><item><ref mediaID="Sprite_cst_sick"></ref></item></list></costumes><sounds><list struct="atomic" id="212"></list></sounds><blocks></blocks><variables><variable name="infected?"><bool>false</bool></variable></variables><scripts><script x="25" y="10"><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><l>100</l><l>5</l><l>2</l></custom-block></script><script x="27" y="44.666666666666686"><block s="receiveOnClone"></block><custom-block s="initialize clone"></custom-block><block s="doWaitUntil"><block var="running"/></block><block s="doIf"><block s="reportVariadicLessThan"><list><block s="reportRandom"><l>0</l><l>99</l></block><block var="percent initially infected"/></list></block><script><block s="doSetVar"><l>infected?</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doChangeVar"><l>number infected</l><l>1</l></block><block s="doSwitchToCostume"><l>sick</l></block></script></block><block s="doUntil"><block s="reportVariadicEquals"><list><block var="number infected"/><block var="population"/></list></block><script><block s="forward"><block var="speed"/></block><block s="bounceOffEdge"></block><block s="doWarp"><script><block s="doIf"><custom-block s="touching infected person?"></custom-block><script><block s="doIf"><block s="reportNot"><block var="infected?"/></block><script><block s="doChangeVar"><l>number infected</l><l>1</l></block></script></block><block s="doSetVar"><l>infected?</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doSwitchToCostume"><l>sick</l></block></script></block></script></block></script></block></script><script x="35.714285714285694" y="600.4489795918369"><custom-block s="average time for disease spread with population size: %n"><l>100</l></custom-block></script><script x="466.6416015625" y="400.36054421768705"><block s="reportTouchingObject"><l></l></block></script><script x="10" y="522.9999999999999"><block s="receiveMessage"><l>vanish</l><list></list></block><block s="removeClone"></block></script><script x="192.33333333333337" y="485.9999999999999"><block s="receiveGo"></block><block s="bubble"><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><l>100</l><l>5</l><l>2</l></custom-block></block><block s="show"></block></script></scripts></sprite><watcher scope="Sprite" var="infected?" style="normal" x="9.999999999999382" y="10" color="243,118,29" hidden="true"/><watcher var="number infected" style="normal" x="9.999999999999382" y="40.00000199999998" color="243,118,29" hidden="true"/><watcher var="running" style="normal" x="9.999999999999382" y="160.00001000000003" color="243,118,29" hidden="true"/><watcher var="start time" style="normal" x="9.999999999999382" y="190.0000119999999" color="243,118,29" hidden="true"/><watcher var="elapsed time" style="normal" x="9.999999999999382" y="220.00001399999994" color="243,118,29" hidden="true"/></sprites></stage><variables><variable name="number infected"><l>100</l></variable><variable name="running"><bool>true</bool></variable><variable name="start time"><l>1678335130347</l></variable><variable name="elapsed time"><l>35.165</l></variable><variable name="population"><l>100</l></variable><variable name="percent initially infected"><l>5</l></variable><variable name="speed"><l>2</l></variable></variables></scene></scenes></project><media name="U5L2S2-Simulation Student" app="Snap! 8.2, https://snap.berkeley.edu" version="2"><costume name="well" center-x="12" center-y="26" 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