<snapdata remixID="8840651"><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="15" y="-40" 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="20" y="20"><block s="receiveGo"></block><block s="clear"></block><block s="gotoXY"><l>-200</l><l>150</l></block><custom-block s="draw brick wall with %s rows"><l>7</l></custom-block></script><script x="20" y="133"><block s="clear"></block><block s="gotoXY"><l>-200</l><l>100</l></block><custom-block s="row 1"></custom-block><block s="gotoXY"><l>-200</l><l>80</l></block><custom-block s="row 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) {&#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 = false;&#xD;};&#xD;</l></block><list><block var="which"/><block var="tf"/></list></block></script></block-definition><block-definition s="draw brick, length: %&apos;length&apos; width: %&apos;width&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input></inputs><script><block s="setColor"><color>145,26,68,1</color></block><custom-block s="set flat line ends to %b"><block s="reportBoolean"><l><bool>true</bool></l></block></custom-block><block s="setSize"><block var="width"/></block><block s="down"></block><block s="forward"><block var="length"/></block><block 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