<snapdata remixID="9262280"><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="40" y="13" heading="270" 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="224" y="172"><block s="gotoXY"><l>0</l><l>0</l></block></script><script x="10" y="10"><block s="clear"></block></script><script x="167" y="346"><custom-block s="draw brick wall with %s rows"><l>7</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;        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 s="up"></block></script></block-definition><block-definition s="set flat line ends to %&apos;flag&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%b"></input></inputs><script><custom-block s="set flag %s to %b"><l>Flat line ends</l><block 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