<snapdata remixID="8642782"><project name="U2L4-brickwall" app="Snap! 5.1, http://snap.berkeley.edu" version="1"><notes></notes><thumbnail>data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKAAAAB4CAYAAAB1ovlvAAAEs0lEQVR4Xu2aMWtUQRRGZ42YwsZCbIxYbWsbbAWJ/gN/goiIWGhpbRci2AiChSK2FkoEQ36AFqawELHRxjpgCnFlRUzANTOz586+3cfZ1rnfu3PmeJd9k8FoNBolPxLoiMBAATsi72N/E1BAReiUgAJ2it+HK6AOdEpAATvF78MVUAc6JaCAneL34QqoA50SUMBO8fvwuRBw4/RFfBI3vr5ONCciA2/kT0BEL+OMef8o4IETijj0qAOP6EUBC0+DTq7xY6IOLKKXwm0fuixqPxG9tMxwAjoBW/qVzVZABcxK0nKBAipgS7+y2QqogFlJWi7ojYAlkE6dG6Zv7z+WLP3vmisvH6Rnl6+hjIgfGBfu3Uxv7qxnf8igRmdQrICVkBWwElhmuQJW8lTASmAKuE/Ar+BYeSLSnICVFJ2AlcCcgE7AWGVi05yAlTydgJXAFmECxm7JtEUi0JsJGPFuLSIj6vAjevGvYQpPI+IvUKIOLKKXwm1nXyLTXhSw8CQo6PFjFPBf2AqogIUEJstD/2MqYCF+CtoJOBm0AipgIQEn4NSgLJQAIdCb1zAlELwLLqE02zUKWMnbm5BKYItwExLxI6QEixOwhNJs1zgBK3k7ASuBOQH3CTgBY+WJSHMCVlJ0AlYCcwI6AWOViU3rzQT0Lnjyy+xYXeLTFPAA0wiJo44oohev4gpPI+I1TNSBRfRSuO1Dl0XtJ6KXlhlOQCdgS7+y2QqogFlJWi5QQAVs6Vc2WwEVMCtJywVzIWDLDZo93wTmQsBZ/fL0Km7+ZFTAyjPxKq4SmFdxXsXFKhOb5gSs5OkErATmBHQCxioTm+YErOTpBKwEtggTMHZLpi0Sgd5MwKjL+1m9EspJErWf3HO6/ncF9CakUwcVUAEVMOJrL+orK6KXiBON2k9ELy0znIBOwJZ+ZbMVUAGzkrRcoIAK2NKvbPZcCJjt0gW9JdBUwNFolO6fWUvbJ3bT07dbaXl5ubcg3dh0BJoKOG5pZ2cnbV269be7veNH05fzK2nj8cPpOraqVwSaCzimdfvqjbTy4sNEcJ+O7aXrm4/ScDjsFVg3U0ZgJgJOere2ffJ7ev5uOy0tLZV16qpeEmgu4PrZtXTkx8/0avdzurv5JK2urvYSpJuajkBTAcc/QsafwWAwXXdW9Z5AUwF7T88NYgIKiBEaQAgoIKFnLSaggBihAYSAAhJ61mICCogRGkAIKCChZy0moIAYoQGEgAISetZiAgqIERpACCggoWctJqCAGKEBhIACEnrWYgIKiBEaQAgoIKFnLSaggBihAYSAAhJ61mICCogRGkAIKCChZy0moIAYoQGEgAISetZiAgqIERpACCggoWctJqCAGKEBhIACEnrWYgIKiBEaQAgoIKFnLSaggBihAYSAAhJ61mICCogRGkAIKCChZy0moIAYoQGEgAISetZiAgqIERpACCggoWctJqCAGKEBhIACEnrWYgIKiBEaQAgoIKFnLSaggBihAYSAAhJ61mICCogRGkAIKCChZy0moIAYoQGEgAISetZiAgqIERpACCggoWctJqCAGKEBhIACEnrWYgIKiBEaQAgoIKFnLSaggBihAYTAL2tYddW/bRxOAAAAAElFTkSuQmCC</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="-140" y="-14" 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="128.999998" y="145"><block s="clear"></block><custom-block s="draw brick with %n rows with %n gap with length %n with width %n"><l>7</l><l>2</l><l>50</l><l>20</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><block-definition s="draw brick with %&apos;rows&apos; rows with %&apos;gap&apos; gap with length %&apos;length&apos; with width %&apos;width&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="gotoXY"><l>-140</l><l>140</l></block><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><block s="doRepeat"><l>5</l><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></script></block></script><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="up"></block><block s="forward"><block s="reportProduct"><block s="reportQuotient"><l>4</l><l>5</l></block><block var="gap"/></block></block><block s="doRepeat"><l>4</l><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 s="reportProduct"><block s="reportQuotient"><l>4</l><l>5</l></block><block var="gap"/></block></block></script></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><block s="up"></block><block s="forward"><block s="reportProduct"><block s="reportQuotient"><l>4</l><l>5</l></block><block var="gap"/></block></block></script></block><block s="up"></block><block s="gotoXY"><l>-140</l><block s="reportDifference"><block s="reportDifference"><l>140</l><block s="reportProduct"><block var="width"/><block var="i"/></block></block><block s="reportProduct"><l>2</l><block var="i"/></block></block></block></script></block></script></block-definition></blocks><variables></variables></project><media name="U2L4-brickwall" app="Snap! 5.1, http://snap.berkeley.edu" version="1"></media></snapdata>