<snapdata remixID="14849644"><project name="U3L3-TicTacToe" 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="U3L3-TicTacToe"><notes></notes><hidden></hidden><headers></headers><code></code><blocks><block-definition s="for %&apos;i&apos; = %&apos;start&apos; to %&apos;end&apos; %&apos;action&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%n">1</input><input type="%n">10</input><input type="%cs"></input></inputs><script><block s="doDeclareVariables"><list><l>step</l><l>tester</l></list></block><block s="doIfElse"><block s="reportVariadicGreaterThan"><list><block var="start"/><block var="end"/></list></block><script><block s="doSetVar"><l>step</l><l>-1</l></block><block s="doSetVar"><l>tester</l><block s="reifyReporter"><autolambda><block s="reportVariadicLessThan"><list><block var="i"/><block var="end"/></list></block></autolambda><list></list></block></block></script><script><block s="doSetVar"><l>step</l><l>1</l></block><block s="doSetVar"><l>tester</l><block s="reifyReporter"><autolambda><block s="reportVariadicGreaterThan"><list><block var="i"/><block var="end"/></list></block></autolambda><list></list></block></block></script></block><block s="doSetVar"><l>i</l><block var="start"/></block><block s="doUntil"><block s="evaluate"><block var="tester"/><list></list></block><script><block s="doRun"><block var="action"/><list></list></block><block s="doChangeVar"><l>i</l><block var="step"/></block></script></block></script></block-definition><block-definition s="join words %&apos;words&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%mult%txt"></input></inputs><script><block s="doWarp"><script><block s="doIf"><block s="errorObsolete"></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="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="makeBoard" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doSwitchToCostume"><l>Empty</l></block><block s="show"></block><block s="setEffect"><l><option>ghost</option></l><l>30</l><comment w="78" collapsed="true">3.3.3 TIF B</comment></block><block s="setScale"><l>95</l><comment w="190" collapsed="true">Oops costumes are a bit too big.</comment></block><block s="doSetVar"><l>position number</l><l>1</l><comment w="53.333333333333336" collapsed="true">3.3.1.4</comment></block><custom-block s="for %upvar = %n to %n %cs"><l>i</l><l>1</l><l>3</l><script><custom-block s="for %upvar = %n to %n %cs"><l>j</l><l>1</l><l>3</l><script><block s="gotoXY"><block s="reportVariadicSum"><list><l>-100</l><block s="reportVariadicProduct"><list><l>50</l><block var="j"/></list></block></list></block><block s="reportDifference"><l>100</l><block s="reportVariadicProduct"><list><l>50</l><block var="i"/></list></block></block></block><block s="createClone"><l><option>myself</option></l></block><block s="doChangeVar"><l>position number</l><l>1</l><comment w="53.333333333333336" collapsed="true">3.3.1.4</comment></block></script></custom-block></script></custom-block><block s="hide"></block></script></block-definition><block-definition s="possible winning triples" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doReport"><block s="reportNewList"><list><block s="reportNewList"><list><l>1</l><l>2</l><l>3</l></list></block><block s="reportNewList"><list><l>4</l><l>5</l><l>6</l></list></block><block s="reportNewList"><list><l>7</l><l>8</l><l>9</l></list></block><block s="reportNewList"><list><l>1</l><l>4</l><l>7</l></list></block><block s="reportNewList"><list><l>2</l><l>5</l><l>8</l></list></block><block s="reportNewList"><list><l>3</l><l>6</l><l>9</l></list></block><block s="reportNewList"><list><l>1</l><l>5</l><l>9</l></list></block><block s="reportNewList"><list><l>3</l><l>5</l><l>7</l></list></block></list></block></block></script></block-definition><block-definition s="status of triple %&apos;triple&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="reportMap"><block s="reifyReporter"><autolambda><block s="reportListItem"><l></l><block var="board"/></block></autolambda><list></list></block><block var="triple"/></block></block></script></block-definition><block-definition s="status of all winning triples" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doReport"><block s="reportMap"><block s="reifyReporter"><autolambda><custom-block s="status of triple %l"><l/></custom-block></autolambda><list></list></block><custom-block s="possible winning triples"></custom-block></block></block></script></block-definition><block-definition s="won? %&apos;who&apos;" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doReport"><block s="reportListContainsItem"><custom-block s="status of all winning triples"></custom-block><block s="reportNewList"><list><block var="who"/><block var="who"/><block var="who"/></list></block></block></block></script></block-definition><block-definition s="tied?" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doReport"><block s="reportVariadicEquals"><list><block s="reportFindFirst"><block s="reifyPredicate"><autolambda><block s="reportIsA"><l></l><l><option>number</option></l></block></autolambda><list></list></block><block var="board"/></block><l></l></list></block></block></script></block-definition><block-definition s="draw win line" type="command" category="lists"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doFor"><l>i</l><l>1</l><l>8</l><script><block s="doDeclareVariables"><list><l>line</l></list></block><block s="doIf"><block s="reportVariadicOr"><list><block s="reportVariadicEquals"><list><block s="reportListItem"><block var="i"/><custom-block s="status of all winning triples"></custom-block></block><block s="reportNewList"><list><l>X</l><l>X</l><l>X</l></list></block></list></block><block s="reportVariadicEquals"><list><block s="reportListItem"><block var="i"/><custom-block s="status of all winning triples"></custom-block></block><block s="reportNewList"><list><l>O</l><l>O</l><l>O</l></list></block></list></block></list></block><script><block s="doSetVar"><l>line</l><block s="reportListItem"><block var="i"/><block var="win lines"/></block></block><block s="up"></block><block s="doGotoObject"><block s="reportListItem"><l>1</l><block var="line"/><comment w="137.33333333333334" collapsed="false">This is why each line in WIN LINES is a list of points, each of which is a list of x,y coordinates:  It allows us to use the endpoints, as points, in the GO TO block.</comment></block></block><block s="down"></block><block s="doGotoObject"><block s="reportListItem"><l>2</l><block var="line"/></block></block><block s="up"></block></script><list></list></block></script></block></script><scripts><comment x="174" y="6.666666666666667" w="244" collapsed="false">I&apos;m kind of bummed that I didn&apos;t find a beautiful one-line solution using FIND FIRST, but it just gives the value it finds, not the position in the list, which is what we need to find the line endpoints in WIN LINES. 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