<snapdata remixID="15146097"><project name="U5L2-Simulation" app="Snap! 11.0.8, https://snap.berkeley.edu" version="2"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><scenes select="1"><scene name="U5L2-Simulation"><notes></notes><hidden></hidden><headers></headers><code></code><blocks><block-definition s="simulate disease, population: %&apos;population input&apos; percent infected: %&apos;percent initially infected input&apos; speed: %&apos;speed input&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><block s="clear"></block><block s="doDeclareVariables"><list><l>elapsed time</l><l>start time</l></list></block><block s="doSetVar"><l>clones ready?</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><custom-block s="initialize simulation %n %n %n"><block var="population input"/><block var="percent initially infected input"/><block var="speed input"/></custom-block><block s="show"></block><block s="doRepeat"><block var="population input"/><script><block s="createClone"><l><option>myself</option></l></block></script><comment w="136.66666666666666" collapsed="true">Create the clones.</comment></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>clones ready?</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><comment w="135.33333333333334" collapsed="false">Wait until everyone is&#xD;infected.</comment></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></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="doDeclareVariables"><list><l>a</l></list></block><block s="doRepeat"><l>10</l><script><block s="doChangeVar"><l>a</l><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><block var="size"/><l>10</l><l>2</l></custom-block></block><block s="goBack"><l>1</l></block></script></block><block s="doReport"><block s="reportQuotient"><block var="a"/><l>10</l></block></block></script><scripts><script x="73" y="188.33333333333303"><block s="doWarp"><script></script></block></script></scripts></block-definition><block-definition s="initialize clone" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doIf"><block s="reportVariadicLessThan"><list><block var="number infected"/><block s="reportVariadicProduct"><list><block var="population"/><block s="reportQuotient"><block var="percent initially infected"/><l>100</l></block></list></block></list></block><script><block s="doChangeVar"><l>number infected</l><l>1</l></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><list></list></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="sensing"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doForEach"><l>neighbor</l><block s="reportGet"><l><option>neighbors</option></l></block><script><block s="doIf"><block s="reportVariadicAnd"><list><block s="reportTouchingObject"><block var="neighbor"/></block><block s="reportAskFor"><block var="neighbor"/><block var="infected?"/><list></list></block></list></block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script><list></list></block></script><comment w="174.66666666666666" collapsed="false">Fill in the blank to check whether&#xD;this clone is touching an infected one.</comment></block><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></block></script><scripts><script x="240.64160156250006" y="188.8"><block s="reportVariadicEquals"><list><l>2</l><block s="reportAttributeOf"><l><option>costume #</option></l><block var="neighbor"/></block></list></block></script><script x="370.81835937500006" y="218.8"><block s="reportVariadicEquals"><list><l>1</l><block s="getCostumeIdx"></block></list></block></script></scripts></block-definition><block-definition s="initialize simulation %&apos;pop&apos; %&apos;inf&apos; %&apos;sp&apos;" type="command" category="variables"><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>clones ready?</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSetVar"><l>number infected</l><l>0</l></block><block s="doSetVar"><l>infected?</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSwitchToCostume"><l>well</l></block><block s="setScale"><l>50</l></block></script></block-definition></blocks><primitives></primitives><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="-50.25000000000008" y="73.2499999999999" heading="152.38" scale="0.5" volume="100" pan="0" rotation="0" draggable="true" hidden="true" costume="1" color="80,80,80,1" pen="tip" id="210"><costumes><list id="211"><item><ref mediaID="U5L2-Simulation_Sprite_cst_well"></ref></item><item><ref mediaID="U5L2-Simulation_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="26.999999999999915" y="92.88888888888914"><block s="receiveOnClone"></block><custom-block s="initialize clone"></custom-block><block s="doWaitUntil"><block var="clones ready?"><comment w="295.3333333333333" collapsed="true">This will be true when all the clones have been created.</comment></block></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="doIf"><block s="reportVariadicAnd"><list><custom-block s="touching infected person?"></custom-block><block s="reportVariadicEquals"><list><l>1</l><block s="reportAttributeOf"><l><option>costume #</option></l><block s="reportGet"><l><option>self</option></l></block></block></list></block></list></block><script><block s="doSwitchToCostume"><l>sick</l></block><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></script><list></list></block></script><comment w="220" collapsed="false">Move the clone and&#xD;make it infected if it&apos;s touching an infected one.</comment></block></script><script x="159.33333333333314" y="58.000000000000114"><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><l>100</l><l>1</l><l>1</l></custom-block></script><comment x="21.666666666666572" y="10" w="331.3333333333333" collapsed="true">There are things to write inside these blocks:</comment><script x="10" y="428.6666666666663"><block s="receiveMessage"><l>vanish</l><list></list></block><block s="removeClone"></block></script><script x="190.99999999999977" y="426.3333333333328"><block s="receiveGo"></block><block s="doReport"><custom-block s="average time for disease spread with population size: %n"><l>10</l></custom-block></block></script></scripts></sprite><watcher scope="Sprite" var="infected?" style="normal" x="9.99999999999973" y="10.000000000000021" color="243,118,29" hidden="true"/><watcher var="number infected" style="normal" x="9.99999999999973" y="40.000002" color="243,118,29" hidden="true"/><watcher scope="Sprite" s="getCostumeIdx" style="normal" x="10.000000000000338" y="10.000000000000021" color="143,86,227" hidden="true"/></sprites></stage><variables><variable name="number infected"><l>8</l></variable><variable name="population"><l>10</l></variable><variable name="percent initially infected"><l>10</l></variable><variable name="speed"><l>2</l></variable><variable name="clones ready?"><bool>true</bool></variable></variables></scene></scenes></project><media name="U5L2-Simulation" app="Snap! 11.0.8, https://snap.berkeley.edu" version="2"><costume name="well" center-x="12" center-y="26" image="data:image/png;base64,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" mediaID="U5L2-Simulation_Sprite_cst_well"/><costume name="sick" center-x="12" center-y="26" image="data:image/png;base64,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" mediaID="U5L2-Simulation_Sprite_cst_sick"/></media></snapdata>