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struct="atomic" id="2"></list></costumes><sounds><list struct="atomic" id="3"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites><sprite name="Sprite" idx="1" x="203.81250782484904" y="142.17217428278337" heading="197.26999999999998" scale="0.5" volume="100" pan="0" rotation="0" draggable="true" hidden="true" costume="1" color="80,80,80,1" pen="tip" id="8"><costumes><list id="9"><item><costume name="well" center-x="12" center-y="26" image="data:image/png;base64,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" id="10"/></item><item><costume name="sick" center-x="12" center-y="26" image="data:image/png;base64,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" id="11"/></item></list></costumes><sounds><list struct="atomic" id="12"></list></sounds><blocks></blocks><variables><variable name="infected?"><bool>false</bool></variable></variables><scripts><script x="30" y="20"><block s="receiveMessage"><l>disappear</l></block><block s="removeClone"></block></script><script x="30" y="89.83333333333334"><block s="receiveGo"></block><block s="bubble"><l></l></block><block s="bubble"><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><l>150</l><l>7</l><l>2</l></custom-block></block><block s="show"></block></script><script x="30" y="206.6666666666667"><block s="receiveOnClone"></block><custom-block s="initialize clone"></custom-block><block s="doWaitUntil"><block var="run"/></block><block s="doUntil"><block s="reportEquals"><block var="num infected"/><block var="populations"/></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>num 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="30" y="531.1666666666667"><custom-block s="average time for disease spread with population size: %n"><l>150</l></custom-block></script></scripts></sprite><watcher scope="Sprite" var="infected?" style="normal" x="0.625" y="0.625" color="243,118,29" hidden="true"/><watcher var="start time" style="normal" x="0.625" y="11.875000749999998" color="243,118,29" hidden="true"/><watcher var="elapsed time" style="normal" x="0.625" y="13.750000874999998" color="243,118,29" hidden="true"/></sprites></stage><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="populations"/><block var="percent initially infected"/><block var="speed"/></custom-block><block s="show"></block><block s="doRepeat"><block var="populations"/><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>run</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doWaitUntil"><block s="reportEquals"><block var="num infected"/><block var="populations"/></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>disappear</l></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="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="reportSum"><l></l><l></l></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"><block s="reportLessThan"><block var="num infected"/><block s="reportProduct"><block var="populations"/><block s="reportQuotient"><block var="percent initially infected"/><l>100</l></block></block></block><script><block s="doChangeVar"><l>num 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></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="reportAnd"><block s="reportNot"><block var="infected?"/></block><block s="reportAnd"><block s="reportTouchingObject"><block var="item"/></block><block s="reportAskFor"><block var="item"/><block s="reifyReporter"><autolambda><block var="infected?"/></autolambda><list></list></block><list></list></block></block></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>populations</l><block var="pop"/></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>run</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSetVar"><l>num infected</l><l>0</l></block><block s="doSwitchToCostume"><l>well</l></block><block s="setScale"><l>50</l></block></script></block-definition></blocks><variables><variable name="start time"><l>1619557701263</l></variable><variable name="elapsed time"><l>193.184</l></variable><variable name="percent initially infected"><l>7</l></variable><variable name="speed"><l>2</l></variable><variable name="run"><bool>true</bool></variable><variable name="num infected"><l>18</l></variable><variable name="populations"><l>100</l></variable></variables></project><media name="U5L2-Simulation" app="Snap! 6, https://snap.berkeley.edu" version="1"></media></snapdata>