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34 lines
1.3 KiB
34 lines
1.3 KiB
# Christmas Lights
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**Tier:** 1-Beginner
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The ChristmasLights application relies on your development talents to create
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a mesmerizing light display. Your task is to draw seven colored circles
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in a row and based on a timer change the intensity of each each circle. When
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a circle is brightened it's predecessor returns to its normal intensity.
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This simulates the effect of a string of rippling lights, similar to the ones
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displayed during the Christmas Holidays.
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## User Stories
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- [ ] User can press a button to start and stop the display
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- [ ] User can change the interval of time controlling the change in intensity
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## Bonus features
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- [ ] User can select the color used to fill each circle
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- [ ] User can specify the intensity value
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- [ ] User can change the size of any circle in the row
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- [ ] User can specify the number of rows to be included in the display. From
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one to seven rows can be chosen
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## Useful links and resources
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- [Sample Image](https://previews.123rf.com/images/whiterabbit/whiterabbit1003/whiterabbit100300020/6582600-seven-color-balls-red-orange-yellow-green-cyan-blue-and-magenta-in-a-row-on-a-white-background.jpg)
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- [Adafruit LED Matrix](https://cdn-shop.adafruit.com/970x728/1487-02.jpg)
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## Example projects
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[PureCSSChristmasLights](https://codepen.io/tobyj/pen/QjvEex)
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