<snapdata remixID="8898980"><project name="U2 L4 - 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="215.99999999999977" y="-166" 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="27" y="312"><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block></script><script x="10" y="22"><block s="receiveGo"></block><block s="gotoXY"><l>0</l><l>59</l></block><block s="clear"></block><custom-block s="draw Brick Wall with %s rows"><l>15</l></custom-block></script></scripts></sprite><watcher var="point" 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="RowA" 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="rowB" 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;num&apos; rows" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doFor"><l>number #</l><l>1</l><block var="num"/><script><block s="doIfElse"><custom-block s="Even? %s"><block var="number #"/></custom-block><script><custom-block s="rowB"></custom-block><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script><script><custom-block s="RowA"></custom-block><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script></block></script><comment w="215" collapsed="false">With some help, I was able to make this simple block.</comment></block></script></block-definition><block-definition s="%&apos;start&apos; Between %&apos;firstBetween&apos; and %&apos;secondBetween&apos;" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%s"></input><input type="%s"></input><input type="%s"></input></inputs><script><block s="doIf"><block s="reportAnd"><block s="reportLessThan"><block var="firstBetween"/><block var="start"/></block><block s="reportGreaterThan"><block var="secondBetween"/><block var="start"/></block></block><script><block s="setColor"><color>28,224,0,1</color></block><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script></block><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></block></script></block-definition><block-definition s="%&apos;first number&apos; divisible by %&apos;divisible by&apos; ?" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%s"></input><input type="%s"></input></inputs><script><block s="doIf"><block s="reportEquals"><block s="reportModulus"><block var="first number"/><block var="divisible by"/></block><l>0</l></block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script></block><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></block></script></block-definition><block-definition s="Even? %&apos;Even number??&apos;" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doIf"><custom-block s="%s divisible by %s ?"><block var="Even number??"/><l>2</l></custom-block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script></block><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></block></script></block-definition><block-definition s="Interger? %&apos;IS IT AN INTERGER?&apos;" type="predicate" category="operators"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doIf"><custom-block s="%s divisible by %s ?"><block s="reportRound"><block var="IS IT AN INTERGER?"/></block><block var="IS IT AN INTERGER?"/></custom-block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script></block><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></block></script></block-definition><block-definition s="space" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><block s="forward"><l>5</l></block></script></block-definition><block-definition s="draw a Brick Wal with %&apos;Rows&apos; with Bricks per Row: %&apos;bricks&apos; brick length %&apos;length&apos; width %&apos;width&apos; gap thick %&apos;gap&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%s"></input><input type="%s"></input><input type="%s"></input><input type="%s"></input><input type="%s"></input></inputs><script><block s="doFor"><l>i</l><l>1</l><block var="number"/><script><block s="doIfElse"><custom-block s="Even? %s"><block var="i"/></custom-block><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><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script><script><custom-block s="RowA"></custom-block><block s="turnLeft"><l>180</l></block><block s="changeYPosition"><l>-15</l></block></script></block></script></block></script></block-definition><block-definition s="initialize" type="command" category="motion"><header></header><code></code><translations></translations><inputs></inputs><script><block s="clear"></block><block s="setHeading"><l>90</l></block><block s="gotoXY"><l>-90</l><l>100</l></block></script></block-definition><block-definition s="make a wall with %&apos;rows&apos; rows %&apos;cols&apos; columns ; brick size %&apos;length&apos; length %&apos;width&apos; width %&apos;gap&apos; and gap" type="command" category="motion"><header></header><code></code><translations></translations><inputs><input type="%s"></input><input type="%s"></input><input type="%s"></input><input type="%s"></input><input type="%s"></input></inputs><script><block s="clear"></block><block s="doSetVar"><l>point</l><block s="xPosition"></block></block><block s="doRepeat"><block s="reportQuotient"><block var="rows"/><l>2</l></block><script><custom-block s="RowA"></custom-block><block s="setXPosition"><block var="point"/></block><block s="changeYPosition"><block s="reportProduct"><l>-2</l><block var="width"/></block></block><custom-block s="rowB"></custom-block><block s="setXPosition"><block var="point"/></block><block s="changeYPosition"><block s="reportProduct"><l>-2</l><block var="width"/></block></block></script></block><block s="doIf"><block s="reportNot"><block s="reportEquals"><block s="reportModulus"><block var="rows"/><l>2</l></block><l>0</l></block></block><script><custom-block s="RowA"></custom-block></script></block></script></block-definition></blocks><variables><variable name="point"><l>0</l></variable></variables></project><media name="U2 L4 - Brick Wall" app="Snap! 5.1, http://snap.berkeley.edu" version="1"></media></snapdata>