<snapdata remixID="8699336"><project name="U2L4-xbrickwall" app="Snap! 5.1, 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" color="255,255,255,1" tempo="60" threadsafe="false" volume="100" pan="0" lines="flat" ternary="true" codify="false" inheritance="false" sublistIDs="false" scheduled="false" id="1"><pentrails>data:image/png;base64,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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="194.00000000000057" y="-5" heading="90" 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="12.666666666666629" y="10"><block s="clear"></block><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block><custom-block s="draw brick wall with %n rows with %n bricks per row of length %n width %n and gap %n"><l>5</l><l></l><l></l><l>7</l><l>8</l></custom-block><custom-block s="rowA, number of blocks: %n length %n width %n gap %n"><l>6</l><l>7</l><l></l><l></l></custom-block><custom-block s="rowB, number of blocks: %n length %n width %n gap %n"><l>6</l><l>5</l><l></l><l></l></custom-block><custom-block s="draw brick wall with %n rows with %n bricks per row of length %n width %n and gap %n"><l>8</l><l>9</l><l>30</l><l>10</l><l>3</l></custom-block></script></scripts></sprite><watcher var="i" style="normal" x="10" y="10" color="243,118,29" hidden="true"/></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><custom-block s="set flat line 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