<snapdata remixID="9180073"><project name="U2L4-brickwall" 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="-200" y="-150" 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="doSetVar"><l>width</l><l>10</l></block><block s="doSetVar"><l>length</l><l>30</l></block></script><script x="20" y="82"><block s="clear"></block><custom-block s="draw a brick wall with %s rows"><l>20</l></custom-block></script></scripts></sprite><watcher var="width" style="normal" x="10" y="10" color="243,118,29"/><watcher var="length" style="normal" x="10" y="31.000001999999995" color="243,118,29"/></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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