<snapdata remixID="8764836"><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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struct="atomic" id="2"></list></costumes><sounds><list struct="atomic" id="3"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites><watcher var="Start Y" style="normal" x="115" y="212.000002" color="243,118,29" hidden="true"/><watcher var="StartX" style="normal" x="48" y="6" color="243,118,29" hidden="true"/><sprite name="Sprite" idx="1" x="220" y="37.5" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="0" color="145,26,68,1" pen="tip" id="10"><costumes><list struct="atomic" id="11"></list></costumes><sounds><list struct="atomic" id="12"></list></sounds><blocks></blocks><variables></variables><scripts><script x="31.66666666666663" y="10"><block s="receiveGo"></block><block s="clear"></block><block s="gotoXY"><l>-200</l><l>150</l></block><custom-block s="rowA"></custom-block><block s="doWait"><l>3</l></block><block s="gotoXY"><l>-200</l><l>100</l></block><custom-block s="rowB"></custom-block><block s="doWait"><l>3</l></block><custom-block s="draw brick wall with %n rows"><l>24</l></custom-block></script><script x="31" y="235"><block s="receiveKey"><l><option>9</option></l></block><custom-block s="draw brick wall with %n rows"><l>9</l></custom-block></script><script x="31" y="330"><block s="receiveKey"><l><option>4</option></l></block><custom-block s="draw brick wall with %n rows"><l>4</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;            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