<snapdata remixID="8777651"><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="0" y="-180" 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="73" y="51"><block s="gotoXY"><l>0</l><l>0</l></block><block s="clear"></block></script><script x="68" y="127"><custom-block s="draw brick wall with %n rows"><l>12</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 var="flag"/></custom-block></script></block-definition><block-definition s="Row A" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doRepeat"><l>6</l><script><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block><block s="forward"><l>6</l></block></script></block></script></block-definition><block-definition s="Row B" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><block s="forward"><l>6</l></block><custom-block s="draw brick, length: %n width: %n"><l>12</l><l>10</l></custom-block><block s="forward"><l>6</l></block><block s="doRepeat"><l>5</l><script><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block><block s="forward"><l>6</l></block></script></block><custom-block s="draw brick, length: %n width: %n"><l>12</l><l>10</l></custom-block></script></block-definition><block-definition s="even? %&apos;number&apos;" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%n"></input></inputs><script><block s="doReport"><block s="reportEquals"><block s="reportModulus"><block var="number"/><l>2</l></block><l>0</l></block></block></script></block-definition><block-definition s="draw brick wall with %&apos;rows&apos; rows" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input></inputs><script><block s="doFor"><l>i</l><l>1</l><block var="rows"/><script><block s="doIfElse"><custom-block s="even? %n"><block var="i"/></custom-block><script><custom-block s="Row B"></custom-block><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script><script><custom-block s="Row A"></custom-block><block s="turnLeft"><l>180</l></block><block 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