<snapdata remixID="8690064"><project name="L09 Brick Walll" 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="-120" 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="438" y="301"><custom-block s="draw a brick wall with %n rows with bricks per row %n of brick length %n width %n gap thickness %n"><l>10</l><l>7</l><l>30</l><l>10</l><l>10</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><l><bool>true</bool></l></custom-block></script></block-definition><block-definition s="Row A %&apos;bricks per row&apos; %&apos;length&apos; %&apos;width&apos; %&apos;gap thickness&apos;" 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="doRepeat"><block var="bricks per row"/><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"><l>30</l><l>10</l></custom-block></script></block-definition><block-definition s="draw wall with rows %&apos;rows&apos;" 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"><block s="reportEquals"><block s="reportModulus"><block var="i"/><l>2</l></block><l>1</l></block><script><custom-block s="Row A %n %n %n %n"><l></l><l></l><l></l><l></l></custom-block><block s="changeYPosition"><l>-15</l></block><block s="setHeading"><l>-90</l></block></script><script><custom-block s="Row B %n %n %n %n"><l></l><l></l><l></l><l></l></custom-block><block s="changeYPosition"><l>-15</l></block><block s="setHeading"><l>90</l></block></script></block></script></block></script></block-definition><block-definition s="Row B %&apos;bricks per row&apos; %&apos;length&apos; %&apos;width&apos; %&apos;gap thickness&apos;" 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><custom-block s="draw brick, length: %n width: %n"><l>12.5</l><l>10</l></custom-block><block 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