<snapdata remixID="9003504"><project name="U2L4-brickwall" 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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</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="200" y="120" 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="252" y="152"><custom-block s="build a wall # of rows %s"><l>30</l></custom-block></script><script x="377" y="77"><block s="clear"></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 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