<snapdata remixID="13261429"><project name="L09 Brick Wall" app="Snap! 9.0, https://snap.berkeley.edu" version="2"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><scenes select="1"><scene name="L09 Brick Wall"><notes></notes><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="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><l><bool>true</bool></l></custom-block></script></block-definition><block-definition s="Row A" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><custom-block s="draw brick, length: %n width: %n"><l>24</l><l>15</l></custom-block></script></block-definition><block-definition s="Row B" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doRepeat"><l>1</l><script><block s="down"></block><block s="forward"><block s="reportQuotient"><l>25</l><l>2</l></block></block><block s="up"></block><block s="forward"><block s="reportQuotient"><l>25</l><l>5</l></block></block></script></block><custom-block s="draw brick, length: %n width: %n"><l>25</l><l>15</l></custom-block><block s="doRepeat"><l>1</l><script><block s="down"></block><block s="forward"><block s="reportQuotient"><l>25</l><l>2</l></block></block><block s="up"></block><block s="forward"><block s="reportQuotient"><l>25</l><l>5</l></block></block></script></block><block s="up"></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="gotoXY"><l>-239</l><l>0</l></block><block s="doRepeat"><block var="rows"/><script><block s="setXPosition"><l>-239</l></block><block s="setYPosition"><l>-20</l></block><block s="down"></block><custom-block s="Row A"></custom-block><block s="up"></block><block s="setXPosition"><l>-239</l></block><block s="setYPosition"><l>-20</l></block><block s="down"></block><custom-block s="Row B"></custom-block></script></block></script></block-definition><block-definition s="even? %&apos;num&apos;" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%n"></input></inputs><script><block s="doIfElse"><custom-block s="%n divisible by %n"><block var="num"/><l>2</l></custom-block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script><script><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></block></script></block></script></block-definition><block-definition s="%&apos;point a&apos; divisible by %&apos;point b&apos;" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input></inputs><script><block s="doIfElse"><block s="reportVariadicEquals"><list><block s="reportModulus"><block var="point a"/><block var="point b"/></block><l>0</l></list></block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script><script><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></block></script></block></script></block-definition><block-definition s="draw row A, bricks per row: %&apos;bricks&apos; , length: %&apos;l&apos; ,width: %&apos;w&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input><input type="%n"></input></inputs><script><block s="gotoXY"><block s="reportDifference"><l>-247.5</l><block s="reportQuotient"><block var="l"/><l>4</l></block><comment w="90" collapsed="false">Sets up brick at a starting position that will make the row alternate to row B</comment></block><block s="yPosition"></block></block><block s="doRepeat"><block var="bricks"/><script><custom-block s="draw brick, length: %n width: %n"><block var="l"/><block var="w"/></custom-block><block s="forward"><block s="reportVariadicProduct"><list><block var="l"/><block s="reportQuotient"><l>4</l><l>30</l></block></list></block><comment w="90" collapsed="false">determines horizontal gap between bricks using length</comment></block></script></block><custom-block s="draw brick, length: %n width: %n"><block s="reportDifference"><block s="reportQuotient"><block var="l"/><l>2</l></block><block s="reportVariadicProduct"><list><block var="l"/><block s="reportQuotient"><l>4</l><l>30</l></block></list></block></block><block var="w"/><comment w="90" collapsed="false">adds final brick, with length calculated by subtracting the gap length from half the length of a regular brick, perfectly matches the end with Row B</comment></custom-block></script></block-definition><block-definition s="odd? %&apos;num&apos;" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%n"></input></inputs><script><block s="doReport"><block s="reportNot"><block s="reportVariadicEquals"><list><block s="reportModulus"><block var="num"/><l>2</l></block><l>0</l></list></block></block></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><l><bool>true</bool></l></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="draw row B, bricks per row: %&apos;bricks&apos; , length: %&apos;l&apos; , width: %&apos;w&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input><input type="%n"></input></inputs><script><block s="gotoXY"><block s="reportVariadicSum"><list><l>-247.5</l><block s="reportQuotient"><block var="l"/><l>4</l></block></list></block><block s="yPosition"></block><comment w="90" collapsed="false">Sets up brick at a starting position that will make the row alternate to row A</comment></block><block s="doRepeat"><block var="bricks"/><script><custom-block s="draw brick, length: %n width: %n"><block var="l"/><block var="w"/></custom-block><block s="forward"><block s="reportVariadicProduct"><list><block s="reportQuotient"><l>4</l><l>30</l></block><block var="l"/></list></block><comment w="90" collapsed="false">determines horizontal gap between bricks using length</comment></block></script></block></script></block-definition><block-definition s="draw brick wall, rows: %&apos;rows&apos; , bricks per row: %&apos;bricks&apos; , 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><input type="%n"></input><input type="%n"></input></inputs><script><block s="gotoXY"><l>-239</l><l>0</l></block><block s="doWarp"><script><block s="gotoXY"><l>0</l><block s="reportVariadicProduct"><list><block var="rows"/><block s="reportVariadicProduct"><list><l>0.7</l><block var="width"/></list></block></list></block></block><block s="doFor"><l>i</l><l>1</l><block var="rows"/><script><block s="doIfElse"><custom-block s="odd? %n"><block var="i"/><comment w="90" collapsed="false">Alternates between A and B, using iteration; if on an odd iteration, A; otherwise, B</comment></custom-block><script><custom-block s="draw row A, bricks per row: %n , length: %n ,width: %n"><block var="bricks"/><block var="length"/><block var="width"/></custom-block></script><script><custom-block s="draw row B, bricks per row: %n , length: %n , width: %n"><block var="bricks"/><block var="length"/><block var="width"/></custom-block></script></block><block s="changeYPosition"><block s="reportVariadicProduct"><list><l>-1.4</l><block var="width"/></list></block><comment w="90" collapsed="false">determines vertical gap between rows based on width, perfectly centers rows around Y=0, complements the &quot;go to&quot; block</comment></block></script></block></script></block></script></block-definition></blocks><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" 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