<snapdata remixID="8967114"><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="-50" y="-80" 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="40" y="30"><block s="doSetVar"><l>X</l><l>-50</l></block><block s="doSetVar"><l>Y</l><l>100</l></block><block s="gotoXY"><block var="X"/><block var="Y"/></block><block s="clear"></block><custom-block s="draw Brick Wall with %n rows %n number of bricks per row %n length %n width of brick %n gap thickness"><l>12</l><l>6</l><l>25</l><l>10</l><l>10</l></custom-block></script><script x="36" y="189"><custom-block s="row A %n number of bricks %n length %n width of brick %n gap thickness"><l></l><l></l><l></l><l></l></custom-block><custom-block s="row B %n number of bricks %n length %n width of brick %n gap thickness"><l></l><l></l><l></l><l></l></custom-block></script></scripts></sprite><watcher var="X" style="normal" x="5" y="4.999999999999993" color="243,118,29" hidden="true"/><watcher var="Y" style="normal" x="5" y="15.50000099999999" 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; 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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 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type="%n"></input><input type="%n"></input></inputs><script><custom-block s="draw brick, length: %n width: %n"><block s="reportQuotient"><block var="Length"/><l>3.4</l></block><block var="Width"/></custom-block><block s="forward"><block var="Gap thickness"/></block><block s="doRepeat"><block s="reportDifference"><block var="Number of bricks"/><l>1</l></block><script><custom-block s="draw brick, length: %n width: %n"><block var="Length"/><block var="Width"/></custom-block><block s="forward"><block var="Gap thickness"/></block></script></block><custom-block s="draw brick, length: %n width: %n"><block s="reportQuotient"><block var="Length"/><l>3.4</l></block><block var="Width"/></custom-block><block s="doChangeVar"><l>Y</l><l>-15</l></block><block s="gotoXY"><block var="X"/><block var="Y"/></block></script><scripts><comment x="373" y="141.2" w="90" collapsed="false">Minh Dinh and Nathaniel Kennedy made this.</comment></scripts></block-definition><block-definition s="row A %&apos;number of bricks&apos; number of bricks %&apos;length&apos; length %&apos;width&apos; width of brick %&apos;Gap Thickness&apos; gap thickness" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input><input type="%n"></input><input type="%n"></input></inputs><script><block s="down"></block><block s="doRepeat"><block var="number of bricks"/><script><custom-block s="draw brick, length: %n width: %n"><block var="length"/><block var="width"/></custom-block><block s="forward"><block var="Gap Thickness"/></block></script></block><block s="up"></block><block s="doChangeVar"><l>Y</l><l>-15</l></block><block s="gotoXY"><block var="X"/><block var="Y"/></block></script><scripts><comment x="341" y="110.2" w="90" collapsed="false">Minh Dinh and Nathaniel Kennedy made this.</comment></scripts></block-definition><block-definition s="draw Brick Wall with %&apos;Number of rows&apos; rows %&apos;Number of bricks per row&apos; number of bricks per row %&apos;Length&apos; length %&apos;Width&apos; width of brick %&apos;Gap Thickness&apos; gap thickness" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input><input type="%n"></input><input type="%n"></input><input type="%n"></input></inputs><script><block s="doDeclareVariables"><list><l>a</l></list></block><block s="doSetVar"><l>a</l><l>0</l></block><block s="doRepeat"><block var="Number of rows"/><script><block s="doIfElse"><custom-block s="%n even?"><block var="a"/></custom-block><script><custom-block s="row A %n number of bricks %n length %n width of brick %n gap thickness"><block var="Number of bricks per row"/><block var="Length"/><block var="Width"/><block var="Gap Thickness"/></custom-block></script><script><custom-block s="row B %n number of bricks %n length %n width of brick %n gap thickness"><block var="Number of bricks per row"/><block 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name="Y"><l>-80</l></variable></variables></project><media name="U2L4-brickwall" app="Snap! 5.4, http://snap.berkeley.edu" version="1"></media></snapdata>