<snapdata remixID="9083984"><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="-75" y="0" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" hidden="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="receiveGo"></block><block s="show"></block><block s="clear"></block><block s="gotoXY"><l>-75</l><l>150</l></block><block s="doAsk"><l>How many rows do you want your wall to have?</l></block><custom-block s="Build a Brick Wall with rows %n"><block s="getLastAnswer"></block></custom-block></script><script x="20" y="173"><block s="receiveKey"><l><option>up arrow</option></l></block><custom-block s="Make a space"></custom-block></script><script x="20" y="243"><block s="receiveKey"><l><option>left arrow</option></l></block><custom-block s="Brick"></custom-block></script><script x="20" y="316"><block s="receiveKey"><l><option>right arrow</option></l></block><custom-block s="Half brick"></custom-block></script><script x="20" y="389"><custom-block s="Row A"></custom-block><custom-block s="Transition from Row A to Row B"></custom-block><custom-block s="Row B"></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>false</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="Brick"></custom-block><custom-block s="Make a space"></custom-block></script></block></script></block-definition><block-definition s="Row B" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><custom-block s="Half brick"></custom-block><custom-block s="Make a space"></custom-block><block s="doRepeat"><l>5</l><script><custom-block s="Brick"></custom-block><custom-block s="Make a space"></custom-block></script></block><custom-block s="Half brick"></custom-block><block s="hide"></block></script></block-definition><block-definition s="Brick" type="command" category="motion"><header></header><code></code><translations></translations><inputs></inputs><script><block s="down"></block><block s="setColor"><color>145,26,68,1</color></block><block s="setSize"><l>10</l></block><block s="forward"><l>30</l></block></script></block-definition><block-definition s="Make a space" type="command" category="motion"><header></header><code></code><translations></translations><inputs></inputs><script><block s="up"></block><block s="forward"><l>5</l></block><block s="down"></block></script></block-definition><block-definition s="Half brick" type="command" category="motion"><header></header><code></code><translations></translations><inputs></inputs><script><block s="down"></block><block s="setColor"><color>145,26,68,1</color></block><block s="setSize"><l>10</l></block><block s="forward"><l>15</l></block></script></block-definition><block-definition s="Transition from Row A to Row B" type="command" category="motion"><header></header><code></code><translations></translations><inputs></inputs><script><block s="up"></block><block s="changeYPosition"><l>-15</l></block><block s="gotoXY"><l>-75</l><block s="yPosition"></block></block><block s="down"></block></script></block-definition><block-definition s="Build a Brick Wall with rows %&apos;X&apos;" type="command" category="motion"><header></header><code></code><translations></translations><inputs><input type="%n"></input></inputs><script><block s="doIfElse"><block s="reportEquals"><block s="reportModulus"><block var="X"/><l>2</l></block><l>0</l></block><script><block s="doRepeat"><block s="reportQuotient"><block var="X"/><l>2</l></block><script><custom-block s="Row A"></custom-block><custom-block s="Transition from Row A to Row B"></custom-block><custom-block s="Row B"></custom-block><custom-block s="Transition from Row A to Row B"></custom-block></script></block></script><script><block s="gotoXY"><l>-75</l><l>-100</l></block><custom-block s="Row B"></custom-block><custom-block s="Transition from Row A to Row B"></custom-block><block s="doRepeat"><block s="reportQuotient"><block var="X"/><l>2</l></block><script><custom-block s="Row A"></custom-block><custom-block s="Transition to Row B to Row A"></custom-block><custom-block s="Row B"></custom-block><custom-block s="Transition to Row B to Row A"></custom-block></script></block></script></block><block s="up"></block></script></block-definition><block-definition s="Transition to Row B to Row A" type="command" category="motion"><header></header><code></code><translations></translations><inputs></inputs><script><block s="up"></block><block s="changeYPosition"><l>15</l></block><block s="gotoXY"><l>-75</l><block s="yPosition"></block></block><block s="down"></block></script></block-definition></blocks><variables></variables></project><media name="U2L4-brickwall" app="Snap! 5.4, http://snap.berkeley.edu" version="1"></media></snapdata>