<snapdata remixID="9004643"><project name=" Brick Wall" 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="0" y="-60" heading="270" 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="50" y="93.00000000000006"><block s="up"></block><block s="doRepeat"><l>10</l><script><block s="changePenHSVA"><l><option>hue</option></l><l>10</l></block></script></block><block s="clear"></block><block s="gotoXY"><l>0</l><l>120</l></block><custom-block s="draw brick wall with %n rows"><l>12</l></custom-block></script></scripts></sprite><watcher var="gap" style="normal" x="10" y="10" color="243,118,29" hidden="true"/><watcher var="bricks" style="normal" x="10" y="31.00000199999998" color="243,118,29" hidden="true"/><watcher var="row" style="normal" x="10" y="10" 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;        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="row A bricks %&apos;bricks&apos; length %&apos;length&apos; width %&apos;width&apos; gap %&apos;gap&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"/><script><custom-block s="draw brick, length: %n width: %n"><block var="length"/><block var="width"/></custom-block><block s="up"></block><block s="forward"><block var="gap"/></block><block s="down"></block></script></block></script></block-definition><block-definition s="row B bricks %&apos;bricks&apos; length %&apos;length&apos; width %&apos;width&apos; gap %&apos;gap&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"><block s="reportQuotient"><block var="length"/><l>2</l></block><block var="width"/></custom-block><block s="doRepeat"><block s="reportDifference"><block var="bricks"/><l></l></block><script><block s="up"></block><block s="forward"><block var="gap"/></block><block s="down"></block><custom-block s="draw brick, length: %n width: %n"><block var="length"/><block var="width"/></custom-block></script></block><block s="forward"><block var="gap"/></block><block s="down"></block><custom-block s="draw brick, length: %n width: %n"><block s="reportQuotient"><block var="length"/><l>2</l></block><block var="width"/></custom-block></script></block-definition><block-definition s="Draw Wall rows %&apos;rows&apos; bricks %&apos;bricks&apos; length %&apos;length&apos; width %&apos;width&apos; gap %&apos;gap&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><input type="%n"></input></inputs></block-definition><block-definition s="even? %&apos;number&apos;" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doReport"><block s="reportEquals"><block s="reportModulus"><block var="number"/><l>2</l></block><l>0</l></block></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="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block><block s="forward"><l>6</l></block></script></block></script></block-definition><block-definition s="row B" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><block s="forward"><l>6</l></block><custom-block s="draw brick, length: %n width: %n"><l>12</l><l>10</l></custom-block><block s="forward"><l>6</l></block><block s="doRepeat"><l>5</l><script><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block><block s="forward"><l>6</l></block></script></block><custom-block s="draw brick, length: %n width: %n"><l>12</l><l>10</l></custom-block></script></block-definition><block-definition s="draw brick wall with %&apos;rows&apos; rows" 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"><custom-block s="even? %s"><block var="i"/></custom-block><script><custom-block s="row B"></custom-block><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script><script><custom-block s="row A"></custom-block><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script></block></script></block></script></block-definition></blocks><variables><variable name="gap"><l>0</l></variable><variable name="bricks"><l>0</l></variable><variable name="row"><l>0</l></variable></variables></project><media name=" Brick Wall" app="Snap! 5.1, http://snap.berkeley.edu" version="1"></media></snapdata>