<snapdata remixID="9284606"><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="0" y="-110" 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="254" y="163"><block s="doSayFor"><l>Hello!</l><l>1</l></block><block s="bubble"><l>I can make a brick wall </l></block><block s="clear"></block><custom-block s="Draw wall with %s rows"><l>10</l></custom-block></script></scripts></sprite><watcher scope="Sprite" s="getPenDown" style="normal" x="10" y="10" color="0,161,120" hidden="true"/><watcher var="#" style="normal" x="10" y="34.000001999999995" color="243,118,29" hidden="true"/></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 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