<snapdata remixID="9017238"><project name="u3l4 brickwall hw" 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="30" y="-240" 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="62" y="135"><block s="clear"></block><block s="gotoXY"><l>-180</l><l>0</l></block></script><script x="58" y="209"><custom-block s="draw Brick Wall with %n rows"><l>4</l></custom-block></script><script x="33" y="412"><custom-block s="draw Brick Wall with rows %n , length %n , width %n , gap %n ."><l>4</l><l>30</l><l>10</l><l>10</l></custom-block></script><script x="38" y="357"><custom-block s="draw Brick Wall with rows %n , length %n , width %n , gap %n ."><l></l><l></l><l></l><l></l></custom-block></script><script x="141" y="288"><custom-block s="draw Brick Wall with rows %n , length %n , width %n , gap %n ."><l></l><l></l><l></l><l></l></custom-block></script><script x="272" y="121"><custom-block s="draw Brick Wall with %n rows"><l></l></custom-block></script><script x="434" y="184"><custom-block s="rowB"></custom-block></script><script x="290" y="176"><custom-block s="rowA 2"></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) 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