<snapdata remixID="8776117"><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="-179" y="-50" 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="18.666666666666657" y="19.33333333333337"><block s="receiveGo"></block><block s="clear"></block><block s="gotoXY"><l>-200</l><l>160</l></block><block s="doAsk"><l>how many rows would you like?</l></block><custom-block s="Draw Brick Wall with %s rows"><block s="getLastAnswer"></block></custom-block><block s="doRepeat"><block s="getLastAnswer"></block><script><custom-block s="rowA"></custom-block><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block><custom-block s="rowB"></custom-block><block s="turn"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script></block></script></scripts></sprite><watcher scope="Stage" s="getLastAnswer" style="normal" x="10" y="10" color="4,148,220" 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 %&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><block s="forward"><l>8</l></block><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block></script></block></script></block-definition><block-definition s="rowB" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><custom-block s="draw brick, length: %n width: %n"><l>15</l><l>10</l></custom-block><block s="doRepeat"><l>5</l><script><block s="forward"><l>7</l></block><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block></script></block><block s="forward"><l>10</l></block><custom-block s="draw brick, length: %n width: %n"><l>15</l><l>10</l></custom-block></script></block-definition><block-definition s="Draw Brick Wall with %&apos;row&apos; rows" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs></block-definition></blocks><variables></variables></project><media name="U2L4-brickwall" app="Snap! 5.1, http://snap.berkeley.edu" version="1"></media></snapdata>