<snapdata remixID="9083430"><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="-235" y="-190" 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="215.66666666666663" y="68.33333333333331"><block s="clear"></block><block s="setColor"><color>255,71,5,1</color></block><block s="gotoXY"><l>-235</l><l>200</l></block><block s="doRepeat"><l>13</l><script><custom-block s="row a"></custom-block><block s="changeYPosition"><l>-15</l></block><block s="setXPosition"><l>-236</l></block><custom-block s="row b"></custom-block><block s="changeYPosition"><l>-15</l></block><block s="setXPosition"><l>-235</l></block></script></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><block var="flag"/></custom-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>90</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><custom-block s="draw brick, length: %n width: %n"><l>36</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>90</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>36</l><l>10</l></custom-block></script></block-definition></blocks><variables></variables></project><media name="U2L4-brickwall" app="Snap! 5.1, http://snap.berkeley.edu" version="1"></media></snapdata>