<snapdata remixID="14836284"><project name="Library Practice" 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="Library Practice"><notes></notes><hidden></hidden><headers></headers><code></code><blocks><block-definition s="mix %&apos;color&apos; with %&apos;other&apos; ratio %&apos;proportion&apos; %" type="reporter" category="pen"><header></header><code></code><translations>de:mische _ mit _ im Verhältnis _ %&#xD;</translations><inputs><input type="%clr" initial="1"></input><input type="%clr" initial="1">rgba(31,47,255,1)</input><input type="%n" initial="1">50</input></inputs><script><block s="doDeclareVariables"><list><l>fract</l></list></block><block s="doSetVar"><l>fract</l><block s="reportQuotient"><block s="reportVariadicMin"><list><block s="reportVariadicMax"><list><block var="proportion"/><l>0</l></list></block><l>100</l></list></block><l>100</l></block></block><block s="doReport"><block s="reportColor"><block s="reportVariadicSum"><list><block s="reportVariadicProduct"><list><block s="reportColorAttribute"><l><option>r-g-b-a</option></l><block var="color"/></block><block var="fract"/></list></block><block s="reportVariadicProduct"><list><block s="reportColorAttribute"><l><option>r-g-b-a</option></l><block var="other"/></block><block s="reportDifference"><l>1</l><block var="fract"/></block></list></block></list></block></block></block></script></block-definition><block-definition s="color %&apos;color&apos; %&apos;operation&apos; by %&apos;ratio&apos; %" type="reporter" category="pen"><header></header><code></code><translations>de:Farbe _ _ um _ %&#xD;</translations><inputs><input type="%clr" initial="1"></input><input type="%s" readonly="true" irreplaceable="true" initial="1">$_darker<options>darker=$_darker&#xD;lighter=$_lighter</options></input><input type="%n" initial="1">50</input></inputs><script><block s="doReport"><custom-block s="mix %clr with %clr ratio %n %"><block s="reportColor"><block s="reportNewList"><list><block s="reportIfElse"><block s="reportVariadicEquals"><list><block var="operation"/><l>darker</l></list></block><block s="reportIfElse"><block s="reportVariadicLessThan"><list><block var="ratio"/><l>0</l></list></block><l>255</l><l>0</l></block><block s="reportIfElse"><block s="reportVariadicLessThan"><list><block var="ratio"/><l>0</l></list></block><l>0</l><l>255</l></block></block></list></block></block><block var="color"/><block s="reportMonadic"><l><option>abs</option></l><block var="ratio"/></block></custom-block></block></script></block-definition><block-definition s="shift %&apos;dimension&apos; of %&apos;color&apos; by %&apos;delta&apos;" type="reporter" category="pen"><header></header><code></code><translations>de:verschiebe _ von _ um _&#xD;</translations><inputs><input type="%s" readonly="true" irreplaceable="true" initial="1">$_hue<options>hue=$_hue&#xD;saturation=$_saturation&#xD;brightness=$_brightness&#xD;transparency=$_transparency</options></input><input type="%clr" initial="1"></input><input type="%n" initial="1">50</input></inputs><script><block s="doDeclareVariables"><list><l>vector</l></list></block><block s="doSetVar"><l>vector</l><block s="reportNewList"><list><l>0</l><l>0</l><l>0</l><l>0</l></list></block></block><block s="doReplaceInList"><block s="reportListIndex"><block var="dimension"/><block s="reportNewList"><list><l>hue</l><l>saturation</l><l>brightness</l><l>transparency</l></list></block></block><block var="vector"/><block var="delta"/></block><block s="doReport"><block s="reportNewColor"><block s="reportVariadicSum"><list><block s="reportColorAttribute"><l><option>h-s-b-t</option></l><block var="color"/></block><block var="vector"/></list></block></block></block></script></block-definition><block-definition s="transition %&apos;colors&apos; over %&apos;size&apos;" type="reporter" category="pen" space="true"><header></header><code></code><translations>de:Farbübergang _ Länge _&#xD;</translations><inputs><input type="%mult%clr" initial="2" min="2">rgba(145,26,68,1)&#xD;rgba(31,47,255,1)&#xD;rgba(255,230,0,1)&#xD;rgba(55,153,30,1)</input><input type="%n" initial="1">5</input></inputs><script><block s="doDeclareVariables"><list><l>first time?</l><l>gradient</l><l>factor</l></list></block><block s="doSetVar"><l>first time?</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doSetVar"><l>gradient</l><block s="evaluate"><block s="reifyReporter"><script><block s="doReport"><block s="reportIfElse"><block s="reportVariadicLessThan"><list><block s="reportListAttribute"><l><option>length</option></l><block var="list"/></block><l>2</l></list></block><block s="reportNewList"><list></list></block><block s="reportConcatenatedLists"><list><block s="reportMap"><block s="reifyReporter"><autolambda><custom-block s="mix %clr with %clr ratio %n %"><block s="reportListItem"><l>1</l><block var="list"/></block><block s="reportListItem"><l>2</l><block var="list"/></block><l></l></custom-block></autolambda><list></list></block><block s="reportVariadicProduct"><list><block s="reportNumbers"><block var="steps"/><block s="reportIfElse"><block var="first time?"/><block s="evaluate"><block s="reifyReporter"><script><block s="doSetVar"><l>first time?</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doReport"><l>0</l></block></script><list></list></block><list></list></block><l>1</l></block></block><block s="reportQuotient"><l>100</l><block var="steps"/></block></list></block></block><block s="evaluate"><block s="reportEnvironment"><l><option>script</option></l></block><list><block s="reportCDR"><block var="list"/></block><block var="steps"/></list></block></list></block></block></block></script><list><l>list</l><l>steps</l></list></block><list><block var="colors"/><block s="reportQuotient"><block var="size"/><block s="reportDifference"><block s="reportListAttribute"><l><option>length</option></l><block var="colors"/></block><l>1</l></block></block></list></block></block><block s="doSetVar"><l>factor</l><block s="reportQuotient"><block var="size"/><block s="reportListAttribute"><l><option>length</option></l><block var="gradient"/></block></block></block><block s="doReport"><block s="reportListItem"><block s="reportMonadic"><l><option>ceiling</option></l><block s="reportQuotient"><block s="reportNumbers"><l>1</l><block s="reportVariadicProduct"><list><block s="reportListAttribute"><l><option>length</option></l><block var="gradient"/></block><block var="factor"/></list></block></block><block var="factor"/></block></block><block var="gradient"/></block></block></script></block-definition><block-definition s="$flash sort %&apos;data&apos; ordering with %&apos;function&apos;" type="reporter" category="lists"><comment x="0" y="0" w="161.14285714285708" collapsed="false">Reports a sorted version of the list in its first input slot, using the comparison function in the second input slot.  For a list of numbers, using &lt; as the comparison function will sort from low to high; using &gt; will sort from high to low.</comment><header></header><code></code><translations>ca:ordena _ segons criteri _&#xD;pl:$flash sortuj _ za pomocą _&#xD;</translations><inputs><input type="%l"></input><input type="%predRing"></input></inputs><script><block s="doReport"><block s="reportApplyExtension"><l>lst_sort(list, fn)</l><list><block var="data"/><block var="function"/></list></block></block></script></block-definition><block-definition s="$flash assoc %&apos;key&apos; %&apos;a-list&apos;" type="reporter" category="lists"><comment x="0" y="0" w="289.3333333333333" collapsed="false">The second input is an &quot;association list,&quot; a list of two-item lists.  Each of those smaller lists has a &quot;key&quot; as its first item and a &quot;value&quot; as its second.  ASSOC reports the first key-value pair in the association list whose key matches the first input.</comment><header></header><code></code><translations>ca:associació _ _&#xD;pl:$flash skojarz _ _&#xD;</translations><inputs><input type="%s"></input><input type="%l"></input></inputs><script><block s="doReport"><block s="reportAtomicFindFirst"><block s="reifyPredicate"><autolambda><block s="reportVariadicEquals"><list><block var="key"/><block s="reportListItem"><l>1</l><l/></block></list></block></autolambda><list></list></block><block var="a-list"/></block></block></script></block-definition><block-definition s="%&apos;#&apos; for each %&apos;item&apos; of %&apos;data&apos; %&apos;action&apos;" type="command" category="lists"><comment x="0" y="0" w="228.57142857142858" collapsed="false">This block carries out the given script for each item of the given list, like the primitive FOR EACH.&#xD;&#xD;What&apos;s different is that it provides the # variable, which will contain the item number in the list of each item in turn, 1 while processing item 1, and so on.</comment><header></header><code></code><translations>ca:_ per cada _ de _ _&#xD;pl:_ dla każdego _ z _ _&#xD;</translations><inputs><input type="%upvar"></input><input type="%upvar"></input><input type="%l"></input><input type="%ca"></input></inputs><script><block s="doForEach"><l>inner item</l><block var="data"/><script><block s="doSetVar"><l>item</l><block var="inner item"/></block><block s="doChangeVar"><l>#</l><l>1</l></block><block s="doRun"><block var="action"/><list></list></block></script></block></script></block-definition><block-definition s="☠︎ linked? %&apos;data&apos;" type="predicate" category="lists" helper="true"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="reportApplyExtension"><l>lst_linked(list)</l><list><block var="data"/></list></block></block></script></block-definition><block-definition s="☠︎ link %&apos;data&apos;" type="reporter" category="lists" helper="true"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doIf"><block s="reportListIsEmpty"><block var="data"/></block><script><block s="doReport"><block var="data"/></block></script><list></list></block><block s="doReport"><block s="reportCONS"><block s="reportListItem"><l>1</l><block var="data"/></block><block s="reportCDR"><block var="data"/></block></block></block></script></block-definition><block-definition s="printable %&apos;data&apos;" type="reporter" category="lists"><comment x="0" y="0" w="188.66666666666666" collapsed="false">Takes a (possibly deep) list as input,&#xD;and reports a human-readable text form &#xD;of the list (namely, Lisp notation).&#xD;&#xD;Will not work on circular lists.</comment><header></header><code></code><translations>ca:notació textual de _&#xD;pl:tekstowa _&#xD;</translations><inputs><input type="%l"></input></inputs><script><block s="doIf"><block s="reportNot"><block s="reportIsA"><block var="data"/><l><option>list</option></l></block></block><script><block s="doReport"><block var="data"/></block></script><list></list></block><block s="doIf"><block s="reportListIsEmpty"><block var="data"/></block><script><block s="doReport"><l>()</l></block></script><list></list></block><block s="doReport"><block s="reportJoinWords"><list><l>(</l><block s="reportAtomicCombine"><block s="reportMap"><block s="reifyReporter"><autolambda><custom-block s="printable %l"><l/></custom-block></autolambda><list></list></block><block var="data"/></block><block s="reifyReporter"><autolambda><block s="reportJoinWords"><list><l></l><l> </l><l></l></list></block></autolambda><list></list></block></block><l>)</l></list></block></block></script></block-definition><block-definition s="sentence %&apos;phrase&apos;" type="reporter" category="lists"><comment x="0" y="0" w="302.6666666666667" collapsed="false">SENTENCE is the main constructor for sentences, represented&#xD;as lists of words.  It takes zero or more inputs, each of which can&#xD;be either a list or a text string.  If a list, the input is assumed to be&#xD;a list of words.  If a text string, it is converted to a list of words using&#xD;SENTENCE→LIST.  Then all the lists of words are appended to form a new list of words.&#xD;&#xD;If the inputs are lists of lists rather than lists of words, SENTENCE,&#xD;like APPEND, does only one level of flattening, reporting a list of&#xD;all the items of all the input lists.</comment><header></header><code></code><translations>ca:frase _&#xD;pl:zdanie _&#xD;</translations><inputs><input type="%mult%s"></input></inputs><script><block s="doReport"><block s="reportConcatenatedLists"><block s="reportMap"><block s="reifyReporter"><autolambda><block s="reportIfElse"><block s="reportIsA"><l></l><l><option>list</option></l></block><l></l><custom-block s="sentence $arrowRight list %txt"><l></l></custom-block></block></autolambda><list></list></block><block var="phrase"/></block></block></block></script></block-definition><block-definition s="$flash zip %&apos;lists&apos;" type="reporter" category="lists"><comment x="0" y="0" w="192" collapsed="false">ZIP takes any number of lists as inputs.  The lists should all be the same length.  ZIP reports a list of lists in which the first item is a list of all the first items, the second item is a list of all the second items, etc.&#xD;Viewing the inputs as the rows of a matrix, ZIP reports its transpose.</comment><header></header><code></code><translations>pl:$flash spakuj _&#xD;</translations><inputs><input type="%mult%l"></input></inputs><script><block s="doReport"><block s="reportListAttribute"><l><option>columns</option></l><block var="lists"/></block></block></script></block-definition><block-definition s="%&apos;x&apos;" type="reporter" category="lists"><comment x="0" y="0" w="105.33333333333333" collapsed="false">The identity function reports its input.</comment><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doReport"><block var="x"/></block></script></block-definition><block-definition s="multimap %&apos;function&apos; over %&apos;lists&apos;" type="reporter" category="lists"><comment x="0" y="0" w="267.3333333333333" collapsed="false">Takes as input a function of N inputs and N lists.&#xD;The function is called with item 1 of all the lists as its inputs, with item 2 of all the lists as its inputs, and so on.  (The lists should all be the same length.)</comment><header></header><code></code><translations>ca:multi-mapeja _ sobre _&#xD;pl:mapuj wielokrotnie _ na _&#xD;</translations><inputs><input type="%repRing"></input><input type="%mult%l"></input></inputs><script><block s="doReport"><block s="reportMap"><block s="reifyReporter"><autolambda><block s="evaluate"><block var="function"/><custom-block s="%s"><l></l></custom-block></block></autolambda><list></list></block><custom-block s="$flash zip %mult%l"><block var="lists"/></custom-block></block></block></script></block-definition><block-definition s="sentence $arrowRight list %&apos;text&apos;" type="reporter" category="operators"><comment x="0" y="0" w="196" collapsed="false">Takes a sentence in text string form and reports the sentence as a list of its words.</comment><header></header><code></code><translations>de:Satz $arrowRight Liste _&#xD;ca:frase $arrowRight llista _&#xD;es:frase $arrowRight lista _&#xD;fr:phrase $arrowRight liste _&#xD;pt:uma lista com as palavras da frase _&#xD;pl:zdanie $arrowRight lista _&#xD;</translations><inputs><input type="%txt"></input></inputs><script><block s="doReport"><block s="reportAtomicKeep"><block s="reifyPredicate"><autolambda><block s="reportNot"><block s="reportVariadicEquals"><list><block s="reportTextAttribute"><l><option>length</option></l><l></l></block><l>0</l></list></block></block></autolambda><list></list></block><block s="reportTextSplit"><block var="text"/><l><option>whitespace</option></l></block></block></block></script></block-definition><block-definition s="draw a polygon" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><block s="down"></block><block s="doRepeat"><block var="numSides"/><script><block s="setColor"><block s="reportListItem"><block var="index"/><block var="colorList"/></block></block><block s="forward"><block var="lengthSides"/></block><block s="turn"><block s="reportQuotient"><l>360</l><block var="numSides"/></block></block><block s="doSetVar"><l>index</l><block s="reportVariadicSum"><list><block var="index"/><l>1</l></list></block></block></script></block><block s="up"></block></script></block-definition><block-definition s="set variables" type="command" category="variables"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doSetVar"><l>index</l><l>1</l></block><block s="doSetVar"><l>numSides</l><block s="reportRandom"><l>3</l><l>12</l></block></block><block s="doSetVar"><l>lengthSides</l><block s="reportRandom"><l>5</l><l>50</l></block></block><block s="doSetVar"><l>colorList</l><custom-block s="transition %mult%clr over %n"><list><color>241,27,0,1</color><color>255,252,236,1</color><color>185,0,41,1</color></list><block var="numSides"/></custom-block></block></script></block-definition><block-definition s="set position and size" type="command" category="motion"><header></header><code></code><translations></translations><inputs></inputs><script><block s="gotoXY"><block s="reportRandom"><l>-240</l><l>240</l></block><block s="reportRandom"><l>-180</l><l>180</l></block></block><block s="setHeading"><block s="reportRandom"><l>0</l><l>360</l></block></block><block s="setSize"><block s="reportRandom"><l>1</l><l>5</l></block></block></script></block-definition></blocks><primitives></primitives><stage name="Stage" width="480" height="360" costume="1" 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" 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