<snapdata remixID="9251064"><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="-240" y="575" 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="602" y="58"><block s="clear"></block></script><script x="588.000001" y="419.000001"><block s="changeXPosition"><l>-20</l></block></script><script x="90.999999" y="295.999999"><block s="gotoXY"><l>-240</l><l>-175</l></block><block s="doRepeat"><l>15</l><script><block s="doRepeat"><l>15</l><script><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block><block s="forward"><l>10</l></block></script></block><block s="changeYPosition"><l>25</l></block><block s="setXPosition"><l>-265</l></block><block s="doRepeat"><l>15</l><script><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block><block s="forward"><l>10</l></block></script></block><block s="changeYPosition"><l>25</l></block><block s="setXPosition"><l>-240</l></block></script></block></script><script x="596.000001" y="361.000001"><custom-block s="draw brick, length: %n width: %n"><l>30</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><block var="flag"/></custom-block></script></block-definition></blocks><variables></variables></project><media name="U2L4-brickwall" app="Snap! 5.4, http://snap.berkeley.edu" version="1"></media></snapdata>