<snapdata remixID="11057195"><project name="U2L12-brickwall " app="Snap! 6, https://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" hyperops="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="16" y="-15" 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="10" y="15.599999999999767"><block s="receiveKey"><l><option>5</option></l></block><block s="up"></block><block s="doGotoObject"><l><option>mouse-pointer</option></l></block><block s="down"></block></script><script x="11" y="133.26666666666662"><block s="receiveKey"><l><option>space</option></l></block><block s="doStopThis"><l><option>all but this script</option></l></block><block s="gotoXY"><l>0</l><l>0</l></block><block s="setHeading"><l>90</l></block><block s="clear"></block></script><script x="156.9999999999992" y="10"><block s="gotoXY"><l>-204</l><l>0</l></block><custom-block s="Draw row A , brick %n , length: %n , width %n , gap %n"><l>9</l><l>20</l><l>10</l><l>5</l></custom-block><block s="up"></block><block s="gotoXY"><l>-204</l><l>-15</l></block><block s="down"></block><custom-block s="Draw row B , brick %n , length %n , width %n , gap %n"><l>9</l><l>20</l><l>10</l><l>5</l><comment w="90" collapsed="false">This works, it builds a even bickwall</comment></custom-block></script><script x="85.99999999999977" y="302.66666666666663"><custom-block s="draw brick wall, rows %n bricks per row %n length %n width %n gap thickness %n"><l>4</l><l>9</l><l>20</l><l>10</l><l>5</l><comment w="90" collapsed="false">This doesn&apos;t work</comment></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><block s="doSetGlobalFlag"><l><option>flat line ends</option></l><block s="reportBoolean"><l><bool>true</bool></l></block></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 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