<snapdata remixID="14134496"><project name="U5L2-Simulation" app="Snap! 10.3.6, https://snap.berkeley.edu" version="2"><notes></notes><thumbnail>data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKAAAAB4CAYAAAB1ovlvAAAAAXNSR0IArs4c6QAADj9JREFUeF7tnQlQVFcWhv8GZFFEUBQVCO4oER33BdS4IVGIJo6Jy4hlNDo60THGNWMWqGgsNUZjasxojEuNE02MSxK3UbNYalzRYDQGRIj7Uu4r+9R/sR/dhQrIwO2mz62iunl93zv3/u+r+94799zzTDk5OTmQIgpoUsAkAGpSXswqBQRAAUGrAo8E8PDhw/jxxx+1NuxpjPv5+aF3796oUKHC0+wu+2hQIB+AW7duRb169Uq1KZuXfwy3+H/DyWTioAyg6Lel/RbuwZU0Z9Xu5ORkRERElGofxNjTKWAF4L59++Dl5fV0RyrGXgnTOqJJ/SC4j/wK2dnZuHDhAnb27g2fa9eeeNRgFxNajw9QdXL8GuHs8/OM+o0aNSpGi2TX0lLACsB3330Xffv2NWx7e3vDZDLh+vXrxrY6deqo0eXTTz81toWGhuLo0aPq/1OnToF1zIUP2f7+/jh//ryxzcfHBwEBAeoyX6VKFZyI7Yo2cw8iMzPTqHM6JQUe0dEI2bYNv3XogEwfHwQOH44Ls2dbaWNyMSFkfAByqjVESvc5xm9NmjQpLQ3FTjEUsAJw6tSpVgA2aNAAv/76KwjYJ598gtdffx3PPvssateujZ07dyIwMBBr165V5gnZsmXLEBISgj59+mDGjBkYPXq0uh8jfEFBQfj222/Rtm1bODk5qePEx8fj3LlzOPXB82gxa69VN27duoW0sDAExsUhKzMTOdnZ6q9igwZIvXkTVQMCcKFnT8DJCd7rl6NG4gokdpphHKNly5bFkEV2LS0FrAD86KOP0K5dO3DU4sjXvHlz3Lt3T7WlfPny6vP+/fvq886dOwq6vXv3ok2bNurSaS78zcPDA1lZWUhPT0elSpXU96tXr6JatWpq25UrV3D69Gll5/TsaDyIjENYl7z7tqUff4yohQtRKSICFVu2xO3Dh5F95w4qdeyIP2bNQtCECTj3/vvw3vo1/LeNRXbVYBwLi1PHY/vZDym2r4AVgJcvX8aJEyesLp88oZaX05L4/+L8vuhRrzx2BI1Apm99XLp0CZ2SkgpUz+2FLgo+luyA5jjc5A0FIPfv169fgftLBf0K5HsKXrRoEerWrVuqLaO9WkFBxbKZmJSEM2fOqJH15ZdfVpd5KbavwGMd0fY4Q2c5Otu+9NJCKiAzIcKBVgWeOBNifhgp6XvAoh6/cuXK6NGjB6pXr65VPDFefAXyAbhly5ZSnwlhN2a/1hOtPZ/seGa9qOnrcLt8DdXzn3/+GYMHDy6+CnIEbQrkmwmpWLGi4YYxj4Cl8Vnls0h4uuY9cT9JkT9iNhvuFvoTpdivAlYAvv3224Yj+qeffsK4ceMwb9485Vzm0+WgQYNUT7mNvzFooVmzZhg7dqyaAaEjm37D7t27q230+61cudKox0smZ1D69++vnNJTpkxRn3SbVF8ebQWg54xkZMR/jbQ1k/Kpe3LAN8a2WrVqgTM2UuxTASsACZbZgbtr1y71nc5id3d3cPqM916enp7gnDGhpMO5ffv2iIuLU343gsQZD9ZxdnZWzmj+nT17VoFJ2K5du4bp06er+pwVeeWVV9RsSNCqP1sBWCHuuFL07jsh+ZQ99tJXxrbWrVur0VCKfSqQzxGdmJio5RJcf+3AQl+CD0etVNBxVoajrRT7VcAmHNGUj8EDVX19C1QyJTVVXe7v3r2LFi1aqOlAKfargN06ouWya7/QWbZcHNFl4zzabS8EQLs9dWWj4fkAXLFiBcLDw22+d67OwNUrlwtsZxW/mkjPyFQxifbQrwI7VMYqWAE4c+ZMFUxq68XLqyJcP2wLd5dCuF/axOBsyF9UlxgtI0/NtnV2rQBkiDz9fUUt9OcxMJVh9vT5sZhD97/77jtj2+bNm9GtWzeUK1fOMMFQLC4ioqO7a9euSEhIMH6jY5xBsvQ3sixduhQjR46Eq6srfBY+B1fnPADpN7z7DmdFrBc0ZTV6HqnNRhvHbNq0aVG7J/VLUAErAA8cOGA4dV988UUwrH39+vXKmUyXB0H54Ycf0LBhQ2PboUOHVPMYot+xY0dVj9u41oOh+wcPHlQR0QSPzmuOQIQ1JiYGe/bswY0bN9C4cWMFJe1zbpfgDR06FBMmTFCjFrcTbjqtuZ+7mxt8F3ezApBtqBB37CGEeYplNozEydARxgYJ1S9Bmp7i0FYAfv755wgODlaH4cnmaMY1IQSEoBw7dgxhYWFW227fvm2Y5cjk5uYGbuOcMot5HpmzI3SdMFCUa0lWr16tfudcLke/qlWrIi0tDVzba7a5e/dutGrVSo14/M5ZF8Jd3sMD1ZdG5gPwUf3PCI7E8eAhxk9svxTbUSDfQwhHOHsorX/5ADkX8pYPPK7Npjd3Yf+xZPUznddRUVH20D2HaeMj3TBc3cbLY1kpvB8dP368Gkml2JYC4ge0rfPhcK0RAB3ulNtWhw0AN2zYoBagl3RhwEHqyRNW64iLavPm9esIqJv7sMTwLnmyLaqCtlNfAciTyCdRy2Je4P3Ym/uHC8CL+vuKubGY6r0LhwL6wbP9ACQkHEXShg0wPfT1Pe54QTfPY2CXXH8gy/lh29UTNov5yd12ZJWWFFYBBSCjlDlNZRl6P2zYMCxZssQIfTcDWdjPyMhIcH0J6zPUatWqVWDCoCUzp+ClVnXgHz3OaOOp5GR49egBvylTcGnmTOVKrjZ8OK589plVP1y9XVB/RO56kNTBm4z2PnjwQEbBwp5xG6unAJw2bZoRik+HMh3IjFqmE5ih9evWrVNTdAsWLADzxezfv1+5NI4cOaJC8+mgZgQ0HcwDBgxAp06d1KwFc8N07txZJR2in4/7LJ/zDwwaF6uiqy1LUsuW6Pzbbzg/fz68wsNRztcXzl5eSHzzTfiPG4eLEyfifkICPCPaI+hPZ5DUf4OxO/2V0dHRNiatNKcwCigAJ02aZJWUiFNrdPoOGTIE7733ngqz5wwHc8BMnjxZZcuaOHEievXqhR07diiwOM3GNSJ0MhNcfrI+R9HFixcbgQBfzI9FWHhHNO+Rlzrj4sWLcA4PR0h8PJzc3ZHD/DMZGbi+ZQuyK1dGRd43jhkDl9BQVO/uhAo3k2AZls9AA87cSLE/BRSAHPVKIpUF15Rw6aRlWfPPGZgakIj4Dh+iQUhjtR4kccIEhB448ET13J97zoCPFY9E/8eoT9At55ft7zQ4bouNp2BOw3GFWUmXgBrVUHNZz2KZMUVMxT5T7lMwV+/FxsYW63iysz4FrPyA27dvx5dffqmvNUWwzLllJiHi7YIU+1VAHNH2e+7KRMutAOTDxcaNG618gv/P/DBcQM6Yv2eeeaZMiCedKL4CBoB0tTzNTMicv76AVh4Fh8Z3nbIUmX65icO3bduGUaNGFb/1cgS7V8AAkLF+hXUyW9bzXhQBL7fCJYM8PWSL4TxmcKoUUcAAkE5lc2G+FwaA8nJJNwr/N+eB4ejFnC6bNm1SC32qLYvKB2BueHx+wCxzujD0n/5FKY6tgAEg871YAsgUHZyt4CwDo5IZWs9PJihi8vKBAweqvDGBX/S1ApBJhe689egUv5bOY07PMdRfimMrYADIxEEclcwPHUwmxMQ/fP/Hky7Nddb0L/QlmM5j8/FliaRjg2fuvQEgV57xNV1FTXXWtGkT+FYpOKfLqZQUpKSkICMjQ62Y45yyFFHgkX7AkkxQLjldBDpLBcQRLTxoVUAA1Cq/GC/x3DAuLi5q/e6lC+cKVNvT2xcmJyf1tqaefA+clDKvQInnhvH3rwm831i9Bbig4vLG90i9kfvGTL7IkK4eKWVbgafODTNixAjwtV4sjEihv9CcF8ZSssCAALjOaqY2ebz2BdK/XwCXZn2Qc+sSsk7tRdbJ3Ub17OFrkHLPzfhf8riUbfjYuwJzw/AFhnzDJcPwmatl7ty5IBjMgM/VaIx4NhfOmLAu02fw7ZhcaVe7VhDcZrd4WMUE57rt1J/Jyw9payar71nJuYvgs179Ckm3c996ziKr3RwMwEflhuGUHPOpMBczo5fNOVpSU1PVWg/69Dglx1kTTuexLrPl832/hDe4QX24zyncu3szhq7G8au5r31lfhkubJJSthUo8dwwruXKoenGGCA7723oj5P07t/34Pjvua9pJdgyV1y24ct3CTZ3V2duGIaEjRkzpuwrLz1UCogfUEDQqoAAqFV+MS4ACgNaFRAAtcovxgVAYUCrAgKgVvnFuAAoDGhVQADUKr8YFwCFAa0KCIBa5RfjAqAwoFUBAVCr/GJcABQGtCogAGqVX4wLgMKAVgUEQK3yi3EBUBjQqoAAqFV+MS4ACgNaFRAAtcovxgVAYUCrAgKgVvnFuAAoDGhVQADUKr8YFwCFAa0KCIBa5RfjAqAwoFUBAVCr/GJcABQGtCogAGqVX4wLgMKAVgUEQK3yi3EBUBjQqoAAqFV+MW5TAObkAEt2AVFNclC9UmHeLCIn0N4VsCkA76XnoOfMbLzaORMxHfLeF2LvIkv7H6+ATQE4cVUmDp64B18fF8yPcUdNHyc5d2VcAZsCcOTyDPz+hwsaBmXhb11MCA3Me2lNGT8PDts9mwJw+jf38d9f3NGqXjpGdXFGXT8Xhz0xjtJxmwLwThrQ/a1EvNqrFl7r4uoo58Ch+2lTAN5NB7pOPYHhUXUwvLMA6Ahk2hSA9zOAMf86g+h2NdC7hVx+BUBHUED6qFUBmxoBtSohxrUoIABqkV2MmhUQAIUFrQoIgFrlF+MCoDCgVQEBUKv8YlwAFAa0KiAAapVfjAuAwoBWBQRArfKLcQFQGNCqgACoVX4xLgAKA1oVEAC1yi/GBUBhQKsCAqBW+cW4ACgMaFVAANQqvxgXAIUBrQr8DwoFOwKIjRKhAAAAAElFTkSuQmCC</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><block s="doGotoObject"><l><option>random position</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 input"/></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="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"><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="reportVariadicEquals"><list><block s="reportAttributeOf"><l><option>costume #</option></l><block var="neighbor"/></block><l>2</l></list></block><script><block s="doIf"><block s="reportVariadicEquals"><list><block s="reportRandom"><l>1</l><l>5</l></block><l>1</l></list></block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script><list></list></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="211.958984375" y="195.80000000000013"><block s="reportBoolean"><l><bool>false</bool></l></block></script><script x="373.4404296875" y="211.80000000000013"><block var="infected?"/></script><script x="370.4404296875" y="107.80000000000013"><block var="infected?"/></script><script x="394.4404296875" y="155.63333333333338"><block s="reportVariadicEquals"><list><block s="getCostumeIdx"></block><l>2</l></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="219"><pentrails>data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAeAAAAFoCAYAAACPNyggAAAAAXNSR0IArs4c6QAADoVJREFUeF7t1cEJAAAIxDDdf2m3sJ+4wEEQuuMIECBAgACBd4F9XzRIgAABAgQIjAB7AgIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECByxcQFpoRMBzwAAAABJRU5ErkJggg==</pentrails><costumes><list struct="atomic" id="220"></list></costumes><sounds><list struct="atomic" id="221"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites select="1"><sprite name="Sprite" idx="1" x="-130.25" y="-108.75" heading="52.31" scale="0.5" volume="100" pan="0" rotation="0" draggable="true" costume="1" color="80,80,80,1" pen="tip" id="226"><costumes><list id="227"><item><ref mediaID="Sprite_cst_well"></ref></item><item><ref mediaID="Sprite_cst_sick"></ref></item></list></costumes><sounds><list struct="atomic" id="228"></list></sounds><blocks></blocks><variables><variable name="infected?"><bool>false</bool></variable></variables><scripts><script x="33.333333333333314" y="92.88888888888903"><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"><custom-block s="touching infected person?"></custom-block><script><block s="doIf"><block s="reportVariadicEquals"><list><block s="getCostumeIdx"></block><l>1</l></list></block><script><block s="doChangeVar"><l>number infected</l><l>1</l></block></script><list></list></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></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><comment x="28" y="10" w="331.3333333333333" collapsed="true">There are things to write inside these blocks:</comment><script x="113.66666666666663" y="414.5"><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><l></l><l></l><l></l></custom-block></script><script x="662.9749348958333" y="273.2222222222224"><custom-block s="touching infected person?"></custom-block></script><script x="233.78466796875" y="585.0666666666666"><block s="reportQuotient"><l></l><l>10</l></block></script><script x="569" y="25.333333333333343"><block s="receiveGo"></block></script><script x="564" y="385.5833333333335"><block s="doWarp"><script></script></block></script><script x="627" y="432.41666666666674"><block s="doRun"><custom-block s="average time for disease spread with population size: %n"><l>100</l></custom-block><list></list></block></script><script x="598" y="85.22222222222223"><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><l>100</l><l>5</l><l>2</l></custom-block></script></scripts></sprite><watcher scope="Sprite" var="infected?" style="normal" x="9.999999999999545" y="10.000000000000007" color="243,118,29"/><watcher var="number infected" style="normal" x="9.999999999999545" y="40.000001999999995" color="243,118,29"/><watcher var="percent initially infected" style="normal" x="9" y="68.000002" color="243,118,29"/><watcher var="clones ready?" style="normal" x="4" y="95.000002" color="243,118,29"/><watcher var="speed" style="normal" x="5" y="124.000002" color="243,118,29"/><watcher var="population" style="normal" x="9" y="152" color="243,118,29"/><watcher s="getCostumeIdx" style="normal" x="10" y="10" color="143,86,227" hidden="true"/></sprites></stage><variables><variable name="number infected"><l>5</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><variable name="clones ready?"><bool>false</bool></variable></variables></scene></scenes></project><media name="U5L2-Simulation" app="Snap! 10.3.6, https://snap.berkeley.edu" version="2"><costume name="well" center-x="12" center-y="26" 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