<snapdata remixID="9237811"><project name="M6L4A2" app="Snap! 5.4, 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" penlog="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="9" y="-162" 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="326" y="90"><block s="gotoXY"><l>0</l><l>0</l></block><block s="clear"></block><custom-block s="draw brick wall, %s rows with %s per row, brick length %s Width %s and Gap thickness %s"><l>6</l><l>5</l><l>12</l><l>24</l><l>3</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;            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;        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