<snapdata remixID="15041743"><project name="U5L2-Simulations" 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-Simulations"><notes></notes><hidden></hidden><headers></headers><code></code><blocks><block-definition s="label %&apos;text&apos; of size %&apos;size&apos;" type="command" category="pen"><comment x="0" y="0" w="90" collapsed="false">LABEL will stamp text on the stage at the given font size. 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%l"><block s="reportCDR"><block var="words"/></block></custom-block><script><block s="doReport"><block s="reportListItem"><l>1</l><block var="words"/></block></block></script><list></list></block><block s="doIf"><block s="reportVariadicEquals"><list><l></l><block s="reportListItem"><l>1</l><block var="words"/></block></list></block><script><block s="doReport"><custom-block s="join words %mult%txt"><block s="reportCDR"><block var="words"/></block></custom-block></block></script><list></list></block><block s="doIf"><block s="reportVariadicEquals"><list><l></l><block s="reportListItem"><l>2</l><block var="words"/></block></list></block><script><block s="doReport"><custom-block s="join words %mult%txt"><block s="reportCONS"><block s="reportListItem"><l>1</l><block var="words"/></block><block s="reportCDR"><block s="reportCDR"><block var="words"/></block></block></block></custom-block></block></script><list></list></block><block s="doReport"><block s="reportJoinWords"><list><block s="reportListItem"><l>1</l><block var="words"/></block><l> </l><custom-block s="join words %mult%txt"><block s="reportCDR"><block var="words"/></block></custom-block></list></block></block></script></block></script><scripts><script x="229.00000300000002" y="196.77778077777774"><block s="reportJoinWords"><list><l></l><l></l></list></block></script></scripts></block-definition><block-definition s="list $arrowRight sentence %&apos;data&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doWarp"><script><block s="doReport"><custom-block s="join words %mult%txt"><block var="data"/></custom-block></block></script></block></script></block-definition><block-definition s="sentence $arrowRight list %&apos;text&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%txt"></input></inputs><script><block s="doWarp"><script><block s="doReport"><block s="reportTextSplit"><block var="text"/><l><option>whitespace</option></l></block></block></script></block></script></block-definition><block-definition s="catch %&apos;tag&apos; %&apos;action&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%cs"></input></inputs><script><block s="doCallCC"><block s="reifyScript"><script><block s="doSetVar"><l>tag</l><block var="cont"/></block><block s="doRun"><block var="action"/><list></list></block></script><list><l>cont</l></list></block></block></script></block-definition><block-definition s="throw %&apos;cont&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%s">catchtag</input></inputs><script><block s="doRun"><block var="cont"/><list></list></block></script></block-definition><block-definition s="catch %&apos;tag&apos; %&apos;value&apos;" type="reporter" category="control"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%anyUE"></input></inputs><script><block s="doCallCC"><block s="reifyScript"><script><block s="doSetVar"><l>tag</l><block var="cont"/></block><block s="doReport"><block s="evaluate"><block var="value"/><list></list></block></block></script><list><l>cont</l></list></block></block></script></block-definition><block-definition s="throw %&apos;tag&apos; %&apos;value&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%s">catchtag</input><input type="%s"></input></inputs><script><block s="doRun"><block var="tag"/><list><block var="value"/></list></block></script></block-definition><block-definition s="for each %&apos;item&apos; of %&apos;data&apos; %&apos;action&apos;" type="command" category="lists"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%l"></input><input type="%cs"></input></inputs><script><block s="doUntil"><custom-block s="empty? %l"><block var="data"/></custom-block><script><block s="doSetVar"><l>item</l><block s="reportListItem"><l>1</l><block var="data"/></block></block><block s="doRun"><block var="action"/><list><block s="reportListItem"><l>1</l><block var="data"/></block></list></block><block s="doSetVar"><l>data</l><block s="reportCDR"><block var="data"/></block></block></script></block></script></block-definition><block-definition s="if %&apos;test&apos; do %&apos;action&apos; and pause all $pause-1-255-220-0" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%boolUE"></input><input type="%cs"></input></inputs><script><block s="doDeclareVariables"><list><l>breakpoint</l></list></block><block s="doIf"><block s="evaluate"><block var="test"/><list></list></block><script><block s="doSetVar"><l>breakpoint</l><block var="test"/></block><block s="doShowVar"><l>breakpoint</l></block><block s="doRun"><block var="action"/><list></list></block><block s="doPauseAll"></block><block s="doHideVar"><l></l></block></script><list></list></block></script></block-definition><block-definition s="word $arrowRight list %&apos;word&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%txt"></input></inputs><script><block s="doWarp"><script><block s="doReport"><block s="reportTextSplit"><block var="word"/><l><option>letter</option></l></block></block></script></block></script></block-definition><block-definition s="ignore %&apos;x&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs></block-definition><block-definition s="tell %&apos;sprite&apos; to %&apos;action&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%s">Sprite</input><input type="%cs"></input></inputs><script><block s="doRun"><block s="reportAttributeOf"><block var="action"/><block var="sprite"/></block><list></list></block></script></block-definition><block-definition s="ask %&apos;sprite&apos; for %&apos;expression&apos;" type="reporter" category="control"><header></header><code></code><translations></translations><inputs><input type="%s">Sprite</input><input type="%repRing"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportAttributeOf"><block var="expression"/><block var="sprite"/></block><list></list></block></block></script></block-definition><block-definition s="list $arrowRight word %&apos;list&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doWarp"><script><block s="doReport"><block s="reportJoinWords"><block var="list"/></block></block></script></block></script></block-definition><block-definition s="activateTimer" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doResetTimer"></block><block s="doUntil"><block s="reportVariadicEquals"><list><block var="infected counter"/><block var="population size"/></list></block><script><block s="doSetVar"><l>time elapsed</l><block s="getTimer"></block></block></script></block><block s="doStopThis"><l><option>all but this script</option></l></block></script></block-definition><block-definition s="initialize" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doSetVar"><l>time elapsed</l><l>0</l></block><block s="doSetVar"><l>infected counter</l><l>0</l></block><block s="gotoXY"><l>0</l><l>0</l></block><block s="doAsk"><l>How many people in the population? Enter 1-200.</l></block><block s="doSetVar"><l>population size</l><block s="getLastAnswer"></block></block><block s="doAsk"><l>What percentage of the population is infected initially? Enter 1-100.</l></block><block s="doSetVar"><l>percent initially sick</l><block s="getLastAnswer"></block></block><block s="doAsk"><l>What is the speed of the people? Enter 1-10.</l></block><block s="doSetVar"><l>speed</l><block s="getLastAnswer"></block></block></script></block-definition><block-definition s="cloneInitialize" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doSwitchToCostume"><l>healthy</l></block><block s="doIf"><block s="reportVariadicLessThan"><list><block var="infected counter"/><block s="reportVariadicProduct"><list><block var="population size"/><block s="reportQuotient"><block var="percent initially sick"/><l>100</l></block></list></block></list></block><script><block s="doSwitchToCostume"><l>sick</l></block><block s="doChangeVar"><l>infected counter</l><l>1</l></block></script><list></list></block><block s="setHeading"><block s="reportRandom"><l>1</l><l>360</l></block></block><block s="gotoXY"><block s="reportRandom"><l>-240</l><l>240</l></block><block s="reportRandom"><l>-180</l><l>180</l></block></block></script></block-definition><block-definition s="collideWithSick?" type="predicate" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><custom-block s="for each %upvar of %l %cs"><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="reportVariadicEquals"><list><block s="reportAttributeOf"><l><option>costume name</option></l><block var="item"/></block><l>sick</l></list></block></list></block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script><list></list></block></script></custom-block><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></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="true" hyperops="true" codify="false" inheritance="false" sublistIDs="false" 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