<snapdata remixID="9023991"><project name="2.4-brickwall-Chen" 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="225" y="105" 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="410" y="72"><block s="clear"></block></script><script x="138" y="83"><block s="up"></block><custom-block s="Brick wall # of rows %s width %s"><l>17</l><l>10</l></custom-block><block s="doWait"><l>10</l></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 = 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