<snapdata remixID="8964262"><project name="U3L1-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="172" y="-209" 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="43" y="60"><block s="gotoXY"><l>0</l><l>0</l></block></script><script x="120" y="417"><custom-block s="draw brick wall with %n rows"><l>14</l></custom-block></script><script x="83" y="204"><custom-block s="even? %n"><l>22</l></custom-block></script><script x="59" y="143"><block s="clear"></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="RowA" 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="RowB" 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><scripts><script x="309" y="52"><custom-block s="RowA"></custom-block></script></scripts></block-definition><block-definition s="even? number" type="command" category="operators"><header></header><code></code><translations></translations><inputs></inputs></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="RowB"></custom-block><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script><script><custom-block s="RowA"></custom-block><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script></block></script></block></script></block-definition></blocks><variables></variables></project><media name="U3L1-brickwall" app="Snap! 5.1, http://snap.berkeley.edu" version="1"></media></snapdata>