<snapdata remixID="10068958"><project name="Devin Lin U2L12-brickwall" app="Snap! 6, https://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" color="255,255,255,1" tempo="60" threadsafe="false" penlog="false" volume="100" pan="0" lines="flat" ternary="true" hyperops="true" codify="false" inheritance="false" sublistIDs="false" scheduled="false" id="1"><pentrails>data:image/png;base64,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</pentrails><costumes><list struct="atomic" id="2"></list></costumes><sounds><list struct="atomic" id="3"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites><sprite name="Sprite" idx="1" x="80.00000000000026" y="-4.999999999999988" heading="270" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="0" color="145,26,68,1" pen="tip" id="8"><costumes><list struct="atomic" id="9"></list></costumes><sounds><list struct="atomic" id="10"></list></sounds><blocks></blocks><variables></variables><scripts><script x="16" y="27.166666666666714"><block s="clear"></block><block s="gotoXY"><l>-100</l><l>100</l></block><block s="setHeading"><l>90</l></block></script><script x="18" y="270.33333333333326"><custom-block s="draw a brick wall with %s rows with bricks per row %s of brick length: %s width: %s Gap Thickness: %s"><l>7</l><l>5</l><l>30</l><l>10</l><l>6</l></custom-block></script><script x="12" y="156.00000000000003"><custom-block s="draw brick wall with %s rows"><l>7</l></custom-block></script></scripts></sprite></sprites></stage><hidden></hidden><headers></headers><code></code><blocks><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="draw brick, length: %&apos;length&apos; width: %&apos;width&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input></inputs><script><block s="setColor"><color>145,26,68,1</color></block><block s="doSetGlobalFlag"><l><option>flat line ends</option></l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="setSize"><block var="width"/></block><block s="down"></block><block s="forward"><block var="length"/></block><block 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