<snapdata remixID="14743178"><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="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="doSetVar"><l>Average Time</l><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><block s="doReport"><block var="Average Time"/></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="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="reportNot"><block var="infected?"/></block><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></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></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="207"><pentrails>data:image/png;base64,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</pentrails><costumes><list struct="atomic" id="208"></list></costumes><sounds><list struct="atomic" id="209"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites select="1"><sprite name="Sprite" idx="1" x="-220.25" y="-38.75" heading="48.079999999999984" scale="0.5" volume="100" pan="0" rotation="0" draggable="true" hidden="true" costume="1" color="80,80,80,1" pen="tip" id="214"><costumes><list id="215"><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="216"></list></sounds><blocks></blocks><variables><variable name="infected?"><bool>false</bool></variable></variables><scripts><comment x="20" y="20" w="331.3333333333333" collapsed="true">There are things to write inside these blocks:</comment><script x="20" y="52"><block s="receiveGo"></block><block s="doAsk"><l>What is the population size of your simulation</l></block><block s="bubble"><custom-block s="average time for disease spread with population size: %n"><block s="getLastAnswer"></block></custom-block></block></script><script x="20" y="151.83333333333334"><custom-block s="touching infected person?"></custom-block></script><script x="20" y="181.66666666666663"><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><l>200</l><l>10</l><l>2</l></custom-block></script><script x="20" y="214.66666666666663"><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="doWarp"><script><block s="doIf"><custom-block s="touching infected person?"></custom-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><list></list></block></script></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></scripts></sprite><watcher scope="Sprite" var="infected?" style="normal" x="9.999999999999545" y="10.000000000000007" color="243,118,29" hidden="true"/><watcher var="number infected" style="normal" x="9.999999999999545" y="40.000001999999995" color="243,118,29" hidden="true"/><watcher var="population" style="normal" x="10" y="10" color="243,118,29" hidden="true"/><watcher var="Average Time" style="normal" x="10" y="31.000001999999995" color="243,118,29"/></sprites></stage><variables><variable name="number infected"><l>4</l></variable><variable name="population"><l>5</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><variable name="Average Time"><l>1.7479</l></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,iVBORw0KGgoAAAANSUhEUgAAABkAAAAxCAYAAAAvFgI4AAAJT0lEQVR4AZRXWaxdVRn+/rX23mefc+7Y4WKBUhlEbK1QCkYEDXXAYIzIQxuH+FqeTPRJfeL47pMPJvhoYjC9xhBJFIdgTYmEMUCxKEYiUOhwe++Z97zW77fPvZRrOa3Xdde/xv//vvX/a9jnGmwxqap0/qzBd36rjc4xjQ4fUwtV2Yr5FkhUjj6i4Y8ew3yZ4JqowI0Dn3/4Zqx+6PvLmLu3o8H/IroyCVfaeRzN9tVYGoTYuzpwhwZjfHmYmy/1ktbdaZ7uu/UAtteLuBLRFUhUvreMeFDi2iLDgV4X93X79oGVVTzY7ZuvXRjZr/bH8oW8n+0LFsfbDx59Prwc0WVJDh9D6GLsHOf4RD/BZ7tDykBvHwzxsd7IfLw/NHf2EnwmSfEpSRvXf/K2m2Y6HTXTiKYOAiofKhD7ErtHOW4fjnEH5eY0w448x2yWYX5cyK5Raj8yysztiatukVnZ/re9mLo/U0k6HYiL0CLo1UmCm9IE1xU55tUTRCEKijNRWQXzWSm78xLXGQ0W9mRgyD544qaScEUSRwjLCrOUuaJASx0JIFAFbYREFK/UkXZRuHnnXDM3axZTEg2mjB4GKpOJ86XVyll4L/U9UXCVtPA0qUXr2nkDNZKpM/m4N/Xe0ISal+ZlkowTlQoVl14pvKr3UK8gsDJx29hXDkpZqM8y63weLN7gLoWq+1NJ9p2ChloVUVgNQlsOrXEp4B0hFQ5aY8OTEUVpfN4Xl66KFsNk/O8K3C5ckqaS4GGgqY1iJszXWkF+JjbZqkGaaJU6X4y8lmMPPy4CJMNIxmfjMDvTdr3x7PC12tEPhGwTCd8mPhFHH3+3tfLz4aIrB9tsmYbNIOm1guG5CGtd484nZfZ25pLTDM/5YcgxzvXakokJ/WIQ7t9x9JHu3P0/+WcDHb2IvdFQ4eWLLxzAUpTv2JvD3nM+b39+ZSx3cWv2VJVvCqoKPildOSy1HLKdV+IdvAt2DIv4wGoy/7meNA95Yw7eMH/Vnu/e2pubPKIM3YSEBOGSxZJL3a2Dodw/SIKvd5PGN1dHrQfW8plPD4u5j5Y6v6R2vm2jHbFEO5rOLs7nsnh1v1q4bS2f/+KFpHW4O46+MczCB8elvScZRTcsdrsz6HQMj5/KNSFaZY7d41QOjMZy92BED9LwtqSIb06LeHfuWzsrmZtFsBjbeHts46VI7baWx8J8rnO7kqp147hs7hvl4Z3DnASZuStL9BZnmwsHd33FmsPLMIlH06tbygvdk+Z6bVHIglcbwlgDCUQRcjNDEduEDVrGhC2IaUAlEkhkxIaGE9YhaBWVvSrN5fqsMtc65+b2RwcJwovXoG2lNnYebfUSiwBBqEUzljQITSn0F0ZURGBMQLGTNiAQ4QsUSR43qRvwZoEPq2pbnbTVSBQVZ4xZOQ5xBXUNTF2KCKzVqhn5cTPGsNEAjw5vBwABICIUpZAUvE+Gug0dt2I/jBpIuWwnVIN4KwqTNo0YbCRDO8MeRQOLKoqQxA0/ZtByjrkNtU2Vsk0UURcHPo0jHUeBz4xxjutQElCBd5NahGXJ7AWqk1eDeOI9V1RaYwoD5RQVPpDr9RqGDd5YuCiQ0hg4MeJBHBqps4E2U68XSeAJXgOJKM0pSvFcjVDqic1CjbrLSkQgYPYgB9jbgPQASgp2cR/q+lLReqAGZ0MpdfeKQl3miQodn5AqBGGIdHBONmgn05cUyv57lmxeITM6gDBMPAh4L9Ev70pp3nLVpnAxsNwUgXLPRLkY1DIxmTQmxaSLyQz7VKY646IU1KIQsaowImokpCdgmnhSGfCjBOEcWKLuYj1NoOoxBhucWB/VupoUXDtrD1IIxZIUUieOWCkqk3axHq6A58HSzlBERCG1Ljz9odA/KDiGibawOVHBxSQWPEzOG6m8SMVQVGp4kvhW+OYi1OxcWVYUKyVc3gs1PxdqejaS7ExD8nOBOn6QtBQVX0fE8dgXhauqSsEPGFdSkxu+yDqm7gpt342QnA4kOQ2k57KyP3r9hePeLB85TGd3jmaC5M2WHb443xicWIwHJ2bC7EWBextG+IUiBfG8UwJDPaPODDACUFeIugtNKV7bFiVPL8bDvyw0+n9dsGt/t+h2d+5dKRkh0VOnkOX9tbNt3z+5aEYnFqPRiZmGe4WRO0vgTJRwBNSaBJ4kXlnU4VJGslDnuwHcv2bD7LltQfLUfCN7bi7M39gxe3q4fOSIJwlwvCPV6vYbVxd08PrSbPHM0mzzadNonqp847zC5LUTysvqfKZa9NTnA/WugOcY6Spf6cAX/q1GO3hpcSF95iqfvtI+c+GdH3/7voQr4f6wrPPyEXGdh+5Ifvit/b23z1bdPF7oV2JSrtRRVPlzkr8ZtErOVWW6QpIMqvUrwdJInrtgtDJK+n849ZvuDx66Y9DpHMogjAHBJ56w3pRFT+6/yaVDhsgYJ3yLqKuqJXw5UJeulD7vOV+R33uOk8uDUVUXrsXueOfhCfMmQEwhAXbeC7UR1++p6uuwc4+VHZ959YlTx7AxVFp7wuMutVjqo4dpaSrJNMWaivdGAUZPJg7UqFQVjtXC883etPx/kAhB19UnhGCXF7OuJsCX55geronRJQWXy+CDsCRjh5kam0t2L5PXl3aZyf8arvGID+UxqJdf9zcpXMGRrXtS41IIrfRmE/pGMwg2GlOqLXlC5A3TyWOy0V4PXd3h6aqry8qWSNat5SKqQAWoTxS2lLZEQsQJmCg/d3VLGbL63ui6j3XFX8r1zFTZEsnEkjEhGPW37sHEjgWNWF4m17iYHCawIrig/vMslcOCSVo/csEVdv6yJDaE8rPvxag3RpwVZduWJK6sRWkF3po6gBT+5DRRoElrbj1+E/L3i+kk/J+RT1YVWYzDUNbCEKtRAyvNCGeC0L4bR+HZRtOeb0S4EIZ+LYLWb3++EMz596Hfb00lWT4MX7Qwjpt4s9XA83Mtc3yhFfxpdiZ8YqYdPdGOG7+fbdk/zrTNk60mnmq08aptBCsnx70CU07dVBIw4K8HGAcZ3ohbeDKexa9n2/jl7ExwbDbCY3Mz9ldzM9Gj2xbw6ELbPm5nghckLM7/bu0XJaak6SRUPH5Iqpd/htXzA/xDBS9KlT/bnX3rpf5brVfLvPFy73z/+fms/Wxuw5P9U/E7Pz2yc4xOZ2q4/gMAAP//nOU1cwAAAAZJREFUAwCXBvguksuouwAAAABJRU5ErkJggg==" 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>