<snapdata remixID="7962208"><project name="U1-project-modeling-art.xml" app="Snap! 4.2, http://snap.berkeley.edu" version="1"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><stage name="Stage" width="480" height="360" costume="0" tempo="60" threadsafe="false" lines="flat" ternary="true" codify="false" inheritance="false" sublistIDs="false" scheduled="true" id="1"><pentrails>data:image/png;base64,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</pentrails><costumes><list id="2"></list></costumes><sounds><list id="3"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites><sprite name="Sprite" idx="1" x="-4.092726157978177e-12" y="-105" heading="0" scale="1" rotation="1" draggable="true" costume="0" color="255,153.00000000000003,0" pen="tip" id="8"><costumes><list id="9"></list></costumes><sounds><list id="10"></list></sounds><blocks></blocks><variables></variables><scripts><script x="42" y="29.200000000000102"><block s="receiveGo"></block><block s="clear"></block><block s="setYPosition"><l>-175</l></block><block s="setBrightness"><l>100</l></block><custom-block s="set flag %s to %b"><l>Flat line ends</l><l><bool>true</bool></l></custom-block><custom-block s="for %upvar = %n to %n %cs"><l>i</l><l>7</l><l>1</l><script><block s="setHue"><block s="reportProduct"><block s="reportRandom"><l>1</l><l>10</l></block><l>10</l></block></block><block s="setSize"><block s="reportProduct"><block var="i"/><l>50</l></block></block><block s="forward"><block s="reportProduct"><block var="i"/><l>50</l></block></block><block s="forward"><block s="reportProduct"><block var="i"/><l>-50</l></block></block><block s="up"></block><block s="forward"><l>10</l></block><block s="down"></block></script></custom-block></script></scripts></sprite><watcher scope="Sprite" s="xPosition" style="normal" x="1.345412097130179" y="1.3454120971302928" color="74,108,212" hidden="true"/><watcher scope="Sprite" s="direction" style="normal" x="1.345412097130179" y="4.1707777701863264" color="74,108,212" hidden="true"/><watcher scope="Sprite" s="yPosition" style="normal" x="1.479953306843754" y="4.978025297546928" color="74,108,212" hidden="true"/></sprites></stage><hidden></hidden><headers></headers><code></code><blocks><block-definition s="tunnel, size: %&apos;steps&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input></inputs><script><block s="setBrightness"><l>100</l><comment w="145" collapsed="true">brightest possible</comment></block><block s="setHue"><l>0</l><comment w="115.83333333333334" collapsed="true">happens to be red</comment></block><block s="setSize"><l>300</l></block><block s="doRepeat"><l>10</l><script><block s="down"></block><block s="forward"><block var="steps"/><comment w="254.16666666666669" collapsed="true">does what your first experiments would predict</comment></block><block s="up"></block><block s="forward"><l>10</l><comment w="216.66666666666669" collapsed="true">move to a new location without drawing</comment></block><block s="changeBrightness"><l>-17</l><comment w="231.66666666666669" collapsed="false">change things: here, to make a tunnel, we get darker and smaller. For other purposes, we could change color and get larger, or....</comment></block><block s="changeSize"><l>-40</l></block></script></block></script></block-definition><block-definition s="sphere, steps: %&apos;steps&apos; color: %&apos;color&apos; size: %&apos;size&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input><input type="%n"></input></inputs><script><block s="setBrightness"><l>10</l><comment w="266" collapsed="true">This dark shade makes any color look almost black</comment></block><block s="setHue"><block var="color"/></block><block s="setSize"><block var="size"/></block><block s="doRepeat"><block var="steps"/><script><block s="down"></block><block s="forward"><l>.5</l></block><block s="up"></block><block s="forward"><block s="reportQuotient"><l>65</l><block var="steps"/></block><comment w="151.33333333333334" collapsed="true">Try 20 or 200 instead of 65.</comment></block><block s="changeBrightness"><block s="reportQuotient"><l>100</l><block var="steps"/><comment w="176.66666666666666" collapsed="true">Lighter shade shows more color.</comment></block></block><block s="changeSize"><block s="reportQuotient"><l>-240</l><block var="steps"/></block></block></script></block></script><scripts><comment x="162" y="125.46666666666665" w="265.3333333333333" collapsed="false">Experiment: start with a /light/ shade and get /darker/.</comment></scripts></block-definition><block-definition s="flat line ends %&apos;tf&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%b"></input></inputs><script><block s="doRun"><block s="reportJSFunction"><list><l>tf</l></list><l>SpriteMorph.prototype.useFlatLineEnds = tf</l></block><list><block var="tf"/></list></block></script></block-definition><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="reportGreaterThan"><block var="start"/><block var="end"/></block><script><block s="doSetVar"><l>step</l><l>-1</l></block><block s="doSetVar"><l>tester</l><block s="reifyReporter"><autolambda><block s="reportLessThan"><block var="i"/><block var="end"/></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="reportGreaterThan"><block var="i"/><block var="end"/></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="setting %&apos;which&apos;" type="reporter" category="sensing"><header></header><code></code><translations></translations><inputs><input type="%s" readonly="true"><options>Project notes&#xD;Project name&#xD;User&#xD;Presentation mode&#xD;Language&#xD;Zoom blocks&#xD;Stage size&#xD;Stage scale&#xD;Retina display support&#xD;Long form input dialog&#xD;Plain prototype labels&#xD;Input sliders&#xD;Execute on slider change&#xD;Clicking sound&#xD;Turbo mode&#xD;Flat design&#xD;Keyboard editing&#xD;Table support&#xD;Table lines&#xD;Visible stepping&#xD;Thread safe scripts&#xD;Prefer smooth animations&#xD;Flat line ends&#xD;Codification support&#xD;Inheritance support</options></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>which</l></list><l>var   stage = this.parentThatIsA(StageMorph),&#xD;        ide = stage.parentThatIsA(IDE_Morph),&#xD;        world = stage.parentThatIsA(WorldMorph);&#xD;&#xD;switch (which) {&#xD;    case &apos;Project notes&apos;:&#xD;        return ide.projectNotes;&#xD;    case &apos;Project name&apos;:&#xD;        return ide.projectName;&#xD;    case &apos;User&apos;:&#xD;        return SnapCloud.username;&#xD;    case &apos;Presentation mode&apos;:&#xD;        return ide.isAppMode;&#xD;    case &apos;Language&apos;:&#xD;        return SnapTranslator.language;&#xD;    case &apos;Zoom blocks&apos;:&#xD;        return SyntaxElementMorph.prototype.scale;&#xD;    case &apos;Stage size&apos;:&#xD;        return new List([StageMorph.prototype.dimensions.x,&#xD;                                   StageMorph.prototype.dimensions.y]);&#xD;    case &apos;Stage scale&apos;:&#xD;       return stage.scale;&#xD;    case &apos;Retina display support&apos;:&#xD;        return isRetinaEnabled();&#xD;    case &apos;Long form input dialog&apos;:&#xD;        return InputSlotDialogMorph.prototype.isLaunchingExpanded;&#xD;    case &apos;Plain prototype labels&apos;:&#xD;        return BlockLabelPlaceHolderMorph.prototype.plainLabel;&#xD;    case &apos;Input sliders&apos;:&#xD;        return MorphicPreferences.useSliderForInput;&#xD;    case &apos;Execute on slider change&apos;:&#xD;        return ArgMorph.prototype.executeOnSliderEdit;&#xD;    case &apos;Clicking sound&apos;:&#xD;        return !!BlockMorph.prototype.snapSound;&#xD;    case &apos;Turbo mode&apos;:&#xD;        return stage.isFastTracked;&#xD;    case &apos;Flat design&apos;:&#xD;        return MorphicPreferences.isFlat;&#xD;    case &apos;Keyboard editing&apos;:&#xD;        return ScriptsMorph.prototype.enableKeyboard;&#xD;    case &apos;Table support&apos;:&#xD;        return List.prototype.enableTables;&#xD;    case &apos;Table lines&apos;:&#xD;        return TableMorph.prototype.highContrast;&#xD;    case &apos;Visible stepping&apos;:&#xD;        return Process.prototype.enableSingleStepping;&#xD;    case &apos;Thread safe scripts&apos;:&#xD;        return stage.isThreadSafe;&#xD;    case &apos;Prefer smooth animations&apos;:&#xD;        return StageMorph.prototype.frameRate &gt; 0;&#xD;    case &apos;Flat line ends&apos;:&#xD;        return SpriteMorph.prototype.useFlatLineEnds;&#xD;    case &apos;Codification support&apos;:&#xD;        return StageMorph.prototype.enableCodeMapping;&#xD;    case &apos;Inheritance support&apos;:&#xD;        return StageMorph.prototype.enableInheritance;&#xD;    default: return which;&#xD;}</l></block><list><block var="which"/></list></block></block></script></block-definition><block-definition s="set flag %&apos;which&apos; to %&apos;tf&apos;" type="command" category="sensing"><header></header><code></code><translations></translations><inputs><input type="%s" readonly="true"><options>Presentation mode&#xD;Retina display support&#xD;Long form input dialog&#xD;Plain prototype labels&#xD;Input sliders&#xD;Execute on slider change&#xD;Clicking sound&#xD;Turbo mode&#xD;Flat design&#xD;Keyboard editing&#xD;Table support&#xD;Table lines&#xD;Visible stepping&#xD;Thread safe scripts&#xD;Prefer smooth animations&#xD;Flat line ends&#xD;Codification support&#xD;Inheritance support</options></input><input type="%b"></input></inputs><script><block s="doRun"><block s="reportJSFunction"><list><l>which</l><l>tf</l></list><l>var   stage = this.parentThatIsA(StageMorph),&#xD;        ide = stage.parentThatIsA(IDE_Morph),&#xD;        world = stage.parentThatIsA(WorldMorph);&#xD;&#xD;if (tf != !!tf) return;&#xD;&#xD;try{&#xD;ide.savingPreferences = false;&#xD;&#xD;switch (which) {&#xD;    case &apos;Presentation mode&apos;:&#xD;        if (tf != ide.isAppMode) ide.toggleAppMode();&#xD;        break;&#xD;    case &apos;Retina display support&apos;:&#xD;        if (tf != isRetinaEnabled()) ide.toggleRetina();&#xD;        break;&#xD;    case &apos;Long form input dialog&apos;:&#xD;        if (tf != InputSlotDialogMorph.prototype.isLaunchingExpanded)&#xD;            ide.toggleLongFormInputDialog();&#xD;        break;&#xD;    case &apos;Plain prototype labels&apos;:&#xD;        if (tf != BlockLabelPlaceHolderMorph.prototype.plainLabel)&#xD;            ide.togglePlainPrototypeLabels();&#xD;        break;&#xD;    case &apos;Input sliders&apos;:&#xD;        MorphicPreferences.useSliderForInput = tf;&#xD;        break;&#xD;    case &apos;Execute on slider change&apos;:&#xD;        ArgMorph.prototype.executeOnSliderEdit = tf;&#xD;        break;&#xD;    case &apos;Clicking sound&apos;:&#xD;        if (tf != !!BlockMorph.prototype.snapSound)&#xD;            BlockMorph.prototype.toggleSnapSound();&#xD;        break;&#xD;    case &apos;Turbo mode&apos;:&#xD;        if (tf != stage.isFastTracked)&#xD;            ide.toggleFastTracking();&#xD;        break;&#xD;    case &apos;Flat design&apos;:&#xD;        if (tf == MorphicPreferences.isFlat) break;&#xD;        if (tf)&#xD;            ide.flatDesign();&#xD;        else&#xD;            ide.defaultDesign();&#xD;        break;&#xD;    case &apos;Keyboard editing&apos;:&#xD;            ScriptsMorph.prototype.enableKeyboard = tf;&#xD;        break;&#xD;    case &apos;Table support&apos;:&#xD;            List.prototype.enableTables = tf;&#xD;        break;&#xD;    case &apos;Table lines&apos;:&#xD;                TableMorph.prototype.highContrast = tf;&#xD;        break;&#xD;    case &apos;Visible stepping&apos;:&#xD;        if (tf != Process.prototype.enableSingleStepping)&#xD;            ide.toggleSingleStepping();&#xD;        break;&#xD;    case &apos;Thread safe scripts&apos;:&#xD;        stage.isThreadSafe = tf;&#xD;        break;&#xD;    case &apos;Prefer smooth animations&apos;:&#xD;        if (tf != (StageMorph.prototype.frameRate &gt; 0))&#xD;            ide.toggleVariableFrameRate();&#xD;        break;&#xD;    case &apos;Flat line ends&apos;:&#xD;        SpriteMorph.prototype.useFlatLineEnds = tf;&#xD;        break;&#xD;    case &apos;Codification support&apos;:&#xD;        if (tf != StageMorph.prototype.enableCodeMapping) {&#xD;            StageMorph.prototype.enableCodeMapping = tf;&#xD;            ide.currentSprite.blocksCache.variables = null;&#xD;            ide.currentSprite.paletteCache.variables = null;&#xD;            ide.refreshPalette();&#xD;        }&#xD;        break;&#xD;    case &apos;Inheritance support&apos;:&#xD;        if (tf != StageMorph.prototype.enableInheritance) {&#xD;            StageMorph.prototype.enableInheritance = tf;&#xD;            ide.currentSprite.blocksCache.variables = null;&#xD;            ide.currentSprite.paletteCache.variables = null;&#xD;            ide.refreshPalette();&#xD;        }&#xD;        break;&#xD;};&#xD;}&#xD;finally {&#xD;ide.savingPreferences = false;&#xD;};&#xD;</l></block><list><block var="which"/><block var="tf"/></list></block></script></block-definition><block-definition s="set value %&apos;which&apos; to %&apos;value&apos;" type="command" category="sensing"><header></header><code></code><translations></translations><inputs><input type="%s" readonly="true"><options>Project notes&#xD;Project name&#xD;Language&#xD;Zoom blocks&#xD;Stage size&#xD;Stage scale</options></input><input type="%s"></input></inputs><script><block s="doRun"><block s="reportJSFunction"><list><l>which</l><l>value</l></list><l>var   stage = this.parentThatIsA(StageMorph),&#xD;        ide = stage.parentThatIsA(IDE_Morph),&#xD;        world = stage.parentThatIsA(WorldMorph);&#xD;&#xD;try {&#xD;ide.savingPreferences = false;&#xD;&#xD;switch (which) {&#xD;    case &apos;Project notes&apos;:&#xD;        ide.projectNotes = value;&#xD;        break;&#xD;    case &apos;Project name&apos;:&#xD;        ide.setProjectName(value);&#xD;        break;&#xD;    case &apos;Language&apos;:&#xD;        ide.setLanguage(value);&#xD;        break;&#xD;    case &apos;Zoom blocks&apos;:&#xD;        if (!isNaN(value)) ide.setBlocksScale(Math.min(value, 12));&#xD;        break;&#xD;    case &apos;Stage size&apos;:&#xD;        if ((value instanceof List) &amp;&amp; value.length()==2&#xD;                       &amp;&amp; !isNaN(value.at(1)) &amp;&amp; !isNaN(value.at(2)))&#xD;            ide.setStageExtent(new Point(value.at(1), value.at(2)));&#xD;        break;&#xD;    case &apos;Stage scale&apos;:&#xD;        ide.toggleStageSize(value != 1, Math.max(0.1, value));&#xD;        break;&#xD;};&#xD;}&#xD;finally {ide.savingPreferences = true;&#xD;};</l></block><list><block var="which"/><block var="value"/></list></block></script></block-definition></blocks><variables></variables></project><media name="U1-project-modeling-art.xml" app="Snap! 4.2, http://snap.berkeley.edu" version="1"></media></snapdata>