<snapdata remixID="8665423"><project name="L09 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,iVBORw0KGgoAAAANSUhEUgAAAeAAAAFoCAYAAACPNyggAAAXgUlEQVR4Xu3d4XFbR9IF0LcMY+PZfFSOwGIEX335MB6GQW2xXJa0BM3XD28atwke/5M5mAFOX8w1Si7iX5t/CBAgQIAAgZsL/OvmJzqQAAECBAgQ2BSwEBAgQIAAgYCAAg6gO5IAAQIECChgGSBAgAABAgEBBRxAdyQBAgQIEFDAMkCAAAECBAICCjiA7kgCBAgQIKCAZYAAAQIECAQEFHAA3ZEECBAgQEABywABAgQIEAgIKOAAuiMJECBAgIAClgECBAgQIBAQUMABdEcSIECAAAEFLAMECBAgQCAgoIAD6I4kQIAAAQIKWAYIECBAgEBAQAEH0B1JgAABAgQUsAwQIECAAIGAgAIOoDuSAAECBAgoYBkgQIAAAQIBAQUcQHckAQIECBBQwDJAgAABAgQCAgo4gO5IAgQIECCggGWAAAECBAgEBBRwAN2RBAgQIEBAAcsAAQIECBAICCjgALojCRAgQICAApYBAgQIECAQEFDAAXRHEiBAgAABBSwDBAgQIEAgIKCAA+iOJECAAAECClgGCBAgQIBAQEABB9AdSYAAAQIEFLAMECBAgACBgIACDqA7kgABAgQIKGAZIECAAAECAQEFHEB3JAECBAgQUMAyQIAAAQIEAgIKOIDuSAIECBAgoIBlgAABAgQIBAQUcADdkQQIECBAQAHLAAECBAgQCAgo4AC6IwkQIECAgAKWAQIECBAgEBBQwAF0RxIgQIAAAQUsAwQIECBAICCggAPojiRAgAABAgpYBggQIECAQEBAAQfQHUmAAAECBBSwDBAgQIAAgYCAAg6gO5IAAQIECChgGSBAgAABAgEBBRxAdyQBAgQIEFDAMkCAAAECBAICCjiA7kgCBAgQIKCAZYAAAQIECAQEFHAA3ZEECBAgQEABywABAgQIEAgIKOAAuiMJECBAgIAClgECBAgQIBAQUMABdEcSIECAAAEFLAMECBAgQCAgoIAD6I4kQIAAAQIKWAYIECBAgEBAQAEH0B1JgAABAgQUsAwQIECAAIGAgAIOoDuSAAECBAgoYBkgQIAAAQIBAQUcQHckAQIECBBQwDJAgAABAgQCAgo4gO5IAgQIECCggO88A//37/98/2wv8Y/np0PP2WucOWFzvJyLrN5HVle9CgW8SnLoPv//7//8GPrU/vFpfXt+OpRLr3HmhM3xci6yeh9ZXfUqDl10qw61z+0EvOFvZ33kJOWknI7kJblWVvv0FXCf7YidFfCIMVw8CZeaAp6ZzMtnJat9k1LAfbYjdlbAI8aggAtjkNUCUmCJAu5DV8B9tiN2dqmNGIMCLoxBVgtIgSUKuA9dAffZjtjZpTZiDAq4MAZZLSAFlijgPnQF3Gc7YmeX2ogxKODCGGS1gBRYooD70BVwn+2InV1qI8aggAtjkNUCUmCJAu5DV8B9tiN2dqmNGIMCLoxBVgtIgSUKuA9dAffZjtjZpTZiDAq4MAZZLSAFlijgPnQF3Gc7YmeX2ogxKODCGGS1gBRYooD70BVwn+2InV1qI8aggAtjkNUCUmCJAu5DV8B9tiN2dqmNGIMCLoxBVgtIgSUKuA9dAffZjtjZpTZiDAq4MAZZLSAFlijgPnQF3Gc7Yufurz972LYfL9v2M0cf/fntz94Cvf789d99e356PILnNR7Ren+tOW7b7way+peH9+P599ZHOyjgXl+7EyBAgACBdwUUsGAQIECAAIGAgAIOoDuSAAECBAgoYBkgQIAAAQIBAQUcQHckAQIECBBQwDJAgAABAgQCAgo4gO5IAgQIECCggGWAAAECBAgEBBRwAN2RBAgQIEBAAcsAAQIECBAICCjgALojCRAgQICAAr7zDKz4Pcl/PD99rzKtOK961sp1XuP/aprjynSt3UtW12f1iOnKaSrglZoD9zr7DTMv2/Z4JJyvF/fDtv05kOIfn5LXeEljjjMTLKs9WT36jU+r0qGAV0kO3UcB7w/GpdZzqe3Lr11hjuZ4baIU8LVyHvehgALeD4iL28W9n5IZK2S1J6sKeEa+7+5ZKOD9kbrUei61ffm1K8zRHK9NlAK+Vs7jfAI+mQEXt4v7ZIRu9nBZ7cmqAr5ZhL/WQT4B78/bpdZzqe3Lr11hjuZ4baIU8LVyHucT8MkMuLhd3CcjdLOHy2pPVhXwzSL8tQ7yCXh/3i61nkttX37tCnM0x2sTpYCvlfM4n4BPZsDF7eI+GaGbPVxWe7KqgG8W4a910NlPwNu2ff/2/PRYVfuMv8DBa+y51KqZWbhOVt9gej/W0qWAa05WHRQ4W8D+i/s+yskczfHg1RFbnsiqAo6N+74PVsD780284fef1doVXqMCXpuovt0SWVXAffP80jsr4P3xJ97w+89q7QqvUQGvTVTfbomsKuC+eX7pnc8WsL8fvY+L2xzN8RNdhDf/u3wF/InS8Zme6tmvlXvYth9H/yesv31eH/uybT+/8OPtn393/Ohn3d5e4/vlZI6/siur3e/CX/ufeT9e+yyPfOPbtWe89zjfhrRS014ECBAgQKAooICLUJYRIECAAIGVAgp4paa9CBAgQIBAUUABF6EsI0CAAAECKwUU8EpNexEgQIAAgaKAAi5CWUaAAAECBFYKKOCVmvYiQIAAAQJFAQVchLKMAAECBAisFFDAKzXtRYAAAQIEigIKuAhlGQECBAgQWCmggFdq2osAAQIECBQFFHAR6rMuO/u7oBOv++jvZfUaE1PaP9McL41kdT83iRVHs7rqOSrgVZJD91nwbUg3f2VHv5nEa7z5iEoHmuMlk6yWonPzRUezuuoJKuBVkkP38YafOZijb3hzNMeUgKz2ySvgPtsRO7u4R4zh4km41Hw6nJnMy2clq32TUsB9tiN2VsAjxqCAC2OQ1QJSYIkC7kNXwH22I3Z2qY0YgwIujEFWC0iBJQq4D10B99mO2NmlNmIMCrgwBlktIAWWKOA+dAXcZztiZ5faiDEo4MIYZLWAFFiigPvQFXCf7YidXWojxqCAC2OQ1QJSYIkC7kNXwH22I3Z2qY0YgwIujEFWC0iBJQq4D10B99mO2NmlNmIMCrgwBlktIAWWKOA+dAXcZztiZ5faiDEo4MIYZLWAFFiigPvQFXCf7YidXWojxqCAC2OQ1QJSYIkC7kNXwH22I3Z2qY0YgwIujEFWC0iBJQq4D10B99mO2NmlNmIMCrgwBlktIAWWKOA+dAXcZzti5+6vP3vYth8v2/YzRx/9+e3P3gK9/vz13317fno8guc1HtF6f605btvvBrL6l4f34/n31kc7KOBeX7sTIECAAIF3BRSwYBAgQIAAgYCAAg6gO5IAAQIECChgGSBAgAABAgEBBRxAdyQBAgQIEFDAMkCAAAECBAICCjiA7kgCBAgQIKCAZYAAAQIECAQEFHAA3ZEECBAgQEABywABAgQIEAgIKOAAuiMJECBAgIACvvMMrPg9yX88P32vMq04r3rWynVe4/9qmuPKdK3dS1bXZ/WI6cppKuCVmgP3OvsNMy/b9ngknK8X98O2/TmQ4h+fktd4SWOOMxMsqz1ZPfqNT6vSoYBXSQ7dRwHvD8al1nOp7cuvXWGO5nhtohTwtXIe96GAAt4PiIvbxb2fkhkrZLUnqwp4Rr7v7lko4P2RutR6LrV9+bUrzNEcr02UAr5WzuN8Aj6ZARe3i/tkhG72cFntyaoCvlmEv9ZBPgHvz9ul1nOp7cuvXWGO5nhtohTwtXIe5xPwyQy4uF3cJyN0s4fLak9WFfDNIvy1DvIJeH/eLrWeS21ffu0KczTHaxOlgK+V8zifgE9mwMXt4j4ZoZs9XFZ7sqqAbxbhr3XQ2U/A27Z9//b89FhV+4y/wMFr7LnUqplZuE5W32B6P9bSpYBrTlYdFDhbwP6L+z7KyRzN8eDVEVueyKoCjo37vg9WwPvzTbzh95/V2hVeowJem6i+3RJZVcB98/zSOyvg/fEn3vD7z2rtCq9RAa9NVN9uiawq4L55fumdzxawvx+9j4vbHM3xE12EN/+7fAX8idLxmZ7q2a+Ve9i2H0f/J6y/fV4f+7JtP7/w4+2ff3f86Gfd3l7j++Vkjr+yK6vd78Jf+595P177LI9849u1Z7z3ON+GtFLTXgQIECBAoCiggItQlhEgQIAAgZUCCnilpr0IECBAgEBRQAEXoSwjQIAAAQIrBRTwSk17ESBAgACBooACLkJZRoAAAQIEVgoo4JWa9iJAgAABAkUBBVyEsowAAQIECKwUUMArNe1FgAABAgSKAgq4CGUZAQIECBBYKaCAV2raiwABAgQIFAUUcBHqsy47+7ugE6/76O9l9RoTU9o/0xwvjWR1PzeJFUezuuo5KuBVkkP3WfBtSDd/ZUe/mcRrvPmISgea4yWTrJaic/NFR7O66gkq4FWSQ/fxhp85mKNveHM0x5SArPbJK+A+2xE7u7hHjOHiSbjUfDqcmczLZyWrfZNSwH22I3ZWwCPGoIALY5DVAlJgiQLuQ1fAfbYjdnapjRiDAi6MQVYLSIElCrgPXQH32Y7Y2aU2YgwKuDAGWS0gBZYo4D50BdxnO2Jnl9qIMSjgwhhktYAUWKKA+9AVcJ/tiJ1daiPGoIALY5DVAlJgiQLuQ1fAfbYjdnapjRiDAi6MQVYLSIElCrgPXQH32Y7Y2aU2YgwKuDAGWS0gBZYo4D50BdxnO2Jnl9qIMSjgwhhktYAUWKKA+9AVcJ/tiJ1daiPGoIALY5DVAlJgiQLuQ1fAfbYjdnapjRiDAi6MQVYLSIElCrgPXQH32Y7Y2aU2YgwKuDAGWS0gBZYo4D50BdxnO2Ln7q8/e9i2Hy/b9jNHH/357c/eAr3+/PXffXt+ejyC5zUe0Xp/rTlu2+8GsvqXh/fj+ffWRzso4F5fuxMgQIAAgXcFFLBgECBAgACBgIACDqA7kgABAgQIKGAZIECAAAECAQEFHEB3JAECBAgQUMAyQIAAAQIEAgIKOIDuSAIECBAgoIBlgAABAgQIBAQUcADdkQQIECBAQAHLAAECBAgQCAgo4AC6IwkQIECAgAK+8wys+D3Jfzw/fa8yrTivetbKdV7j/2qa48p0rd1LVtdn9Yjpymkq4JWaA/c6+w0zL9v2eCScrxf3w7b9OZDiH5+S13hJY44zEyyrPVk9+o1Pq9KhgFdJDt1HAe8PxqXWc6nty69dYY7meG2iFPC1ch73oYAC3g+Ii9vFvZ+SGStktSerCnhGvu/uWSjg/ZG61HoutX35tSvM0RyvTZQCvlbO43wCPpkBF7eL+2SEbvZwWe3JqgK+WYS/1kE+Ae/P26XWc6nty69dYY7meG2iFPC1ch7nE/DJDLi4XdwnI3Szh8tqT1YV8M0i/LUO8gl4f94utZ5LbV9+7QpzNMdrE6WAr5XzOJ+AT2bAxe3iPhmhmz1cVnuyqoBvFuGvddDZT8Dbtn3/9vz0WFX7jL/AwWvsudSqmVm4TlbfYHo/1tKlgGtOVh0UOFvA/ov7PsrJHM3x4NURW57IqgKOjfu+D1bA+/NNvOH3n9XaFV6jAl6bqL7dEllVwH3z/NI7K+D98Sfe8PvPau0Kr1EBr01U326JrCrgvnl+6Z3PFrC/H72Pi9sczfETXYQ3/7t8BfyJ0vGZnurZr5V72LYfR/8nrL99Xh/7sm0/v/Dj7Z9/d/zoZ93eXuP75WSOv7Irq93vwl/7n3k/Xvssj3zj27VnvPc434a0UtNeBAgQIECgKKCAi1CWESBAgACBlQIKeKWmvQgQIECAQFFAARehLCNAgAABAisFFPBKTXsRIECAAIGigAIuQllGgAABAgRWCijglZr2IkCAAAECRQEFXISyjAABAgQIrBRQwCs17UWAAAECBIoCCrgIZRkBAgQIEFgpoIBXatqLAAECBAgUBRRwEeqzLjv7u6ATr/vo72X1GhNT2j/THC+NZHU/N4kVR7O66jkq4FWSQ/dZ8G1IN39lR7+ZxGu8+YhKB5rjJZOslqJz80VHs7rqCSrgVZJD9/GGnzmYo294czTHlICs9skr4D7bETu7uEeM4eJJuNR8OpyZzMtnJat9k1LAfbYjdlbAI8aggAtjkNUCUmCJAu5DV8B9tiN2dqmNGIMCLoxBVgtIgSUKuA9dAffZjtjZpTZiDAq4MAZZLSAFlijgPnQF3Gc7YmeX2ogxKODCGGS1gBRYooD70BVwn+2InV1qI8aggAtjkNUCUmCJAu5DV8B9tiN2dqmNGIMCLoxBVgtIgSUKuA9dAffZjtjZpTZiDAq4MAZZLSAFlijgPnQF3Gc7YmeX2ogxKODCGGS1gBRYooD70BVwn+2InV1qI8aggAtjkNUCUmCJAu5DV8B9tiN2dqmNGIMCLoxBVgtIgSUKuA9dAffZjtjZpTZiDAq4MAZZLSAFlijgPnQF3Gc7Yufurz972LYfL9v2M0cf/fntz94Cvf789d99e356PILnNR7Ren+tOW7b7way+peH9+P599ZHOyjgXl+7EyBAgACBdwUUsGAQIECAAIGAgAIOoDuSAAECBAgoYBkgQIAAAQIBAQUcQHckAQIECBBQwDJAgAABAgQCAgo4gO5IAgQIECCggGWAAAECBAgEBBRwAN2RBAgQIEBAAcsAAQIECBAICCjgALojCRAgQICAApYBAgQIECAQEFDAAXRHEiBAgAABBSwDBAgQIEAgIKCAA+iOJECAAAECClgGCBAgQIBAQEABB9AdSYAAAQIEFLAMECBAgACBgIACDqA7kgABAgQIKGAZIECAAAECAQEFHEB3JAECBAgQUMAyQIAAAQIEAgIKOIDuSAIECBAgoIBlgAABAgQIBAQUcADdkQQIECBAQAHLAAECBAgQCAgo4AC6IwkQIECAgAKWAQIECBAgEBBQwAF0RxIgQIAAAQUsAwQIECBAICCggAPojiRAgAABAgpYBggQIECAQEBAAQfQHUmAAAECBBSwDBAgQIAAgYCAAg6gO5IAAQIECChgGSBAgAABAgEBBRxAdyQBAgQIEFDAMkCAAAECBAICCjiA7kgCBAgQIKCAZYAAAQIECAQEFHAA3ZEECBAgQEABywABAgQIEAgIKOAAuiMJECBAgIAClgECBAgQIBAQUMABdEcSIECAAAEFLAMECBAgQCAgoIAD6I4kQIAAAQIKWAYIECBAgEBAQAEH0B1JgAABAgQUsAwQIECAAIGAgAIOoDuSAAECBAgoYBkgQIAAAQIBAQUcQHckAQIECBBQwDJAgAABAgQCAgo4gO5IAgQIECCggGWAAAECBAgEBBRwAN2RBAgQIEBAAcsAAQIECBAICCjgALojCRAgQICAApYBAgQIECAQEFDAAXRHEiBAgAABBSwDBAgQIEAgIKCAA+iOJECAAAECClgGCBAgQIBAQEABB9AdSYAAAQIEFLAMECBAgACBgIACDqA7kgABAgQIKGAZIECAAAECAQEFHEB3JAECBAgQUMAyQIAAAQIEAgIKOIDuSAIECBAgoIBlgAABAgQIBAQUcADdkQQIECBAQAHLAAECBAgQCAgo4AC6IwkQIECAgAKWAQIECBAgEBBQwAF0RxIgQIAAAQUsAwQIECBAICCggAPojiRAgAABAgpYBggQIECAQEBAAQfQHUmAAAECBBSwDBAgQIAAgYCAAg6gO5IAAQIECChgGSBAgAABAgEBBRxAdyQBAgQIEFDAMkCAAAECBAICCjiA7kgCBAgQIKCAZYAAAQIECAQEFHAA3ZEECBAgQEABywABAgQIEAgIKOAAuiMJECBAgIAClgECBAgQIBAQUMABdEcSIECAAAEFLAMECBAgQCAgoIAD6I4kQIAAAQIKWAYIECBAgEBAQAEH0B1JgAABAgQUsAwQIECAAIGAgAIOoDuSAAECBAgoYBkgQIAAAQIBAQUcQHckAQIECBBQwDJAgAABAgQCAgo4gO5IAgQIECCggGWAAAECBAgEBBRwAN2RBAgQIEBAAcsAAQIECBAICCjgALojCRAgQICAApYBAgQIECAQEFDAAXRHEiBAgAABBSwDBAgQIEAgIPBfg1FaO1mDPD0AAAAASUVORK5CYII=</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="210" y="-89" 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="13" y="10"><block s="clear"></block><block s="gotoXY"><l>-120</l><l>100</l></block><block s="setHeading"><l>90</l></block><custom-block s="draw brick wall with %n rows with bricks per row %n length %n gap thickness %n width %n"><l>7</l><l>6</l><l>45</l><l>12</l><l>15</l></custom-block></script></scripts></sprite><watcher var="bricks" 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;        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