<snapdata remixID="9085990"><project name="U2L4-brickwall 3" 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="false" codify="false" inheritance="true" 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="-68" 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"><custom-block s="Draw Brick Wall with %n rows with Bricks per row: %n of Brick Length: %n Width: %n Gap Thickness: %n"><l>8</l><l>12</l><l>30</l><l>20</l><l>2</l></custom-block></script></scripts></sprite></sprites></stage><hidden></hidden><headers></headers><code></code><blocks><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="%s"></input><input type="%s"></input></inputs><script><block s="down"></block><block s="setSize"><block var="width"/></block><block s="forward"><block var="length"/></block></script></block-definition><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 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