Command Description
C w h Create a new canvas of width w and height h.
L x1 y1 x2 y2 Create a new line of 'x' from (x1,y1) to (x2,y2). Only support
horizontal or vertical lines.
R x1 y1 x2 y2 Create a new rectangle, (x1,y1) is upper left corner & (x2,y2) is
lower right corner.
B x y c Fill the entire area around (x,y) with "colour" c.
Same as that of the "bucket fill" tool in paint programs.
Q Quit.
enter command: C 20 4
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| |
| |
| |
| |
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enter command: L 1 2 6 2
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| |
|xxxxxx |
| |
| |
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enter command: L 6 3 6 4
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| |
|xxxxxx |
| x |
| x |
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enter command: R 14 1 18 3
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| xxxxx |
|xxxxxx x x |
| x xxxxx |
| x |
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enter command: B 10 3 o
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|oooooooooooooxxxxxoo|
|xxxxxxooooooox xoo|
| xoooooooxxxxxoo|
| xoooooooooooooo|
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ConsoleDrawing requires Node.js v4+ to run.
Install the dependencies and devDependencies and start the program.
$ cd console-drawing
$ npm install -d
$ npm startRun the Jest tests file with npm:
$ cd console-drawing
$ npm testThe project is using ES6 Modules. Upon start a babel script transpiles the files and saves them into the '/dist' folder. From which node will serve them.
The code coverage is dispayed after all tests have run.
- 100% of functions covered
- 98% of lines of code
Some assumptions that were made:
- Canvas cannot be larger than 100x100
- Drawing a new Canvas over an existing will reset all the shapes
- The last shape drawn will be overlaid over the previous ones
- A shape cannot be drawn over the edge of the canvas
ConsoleDrawing uses a number of open source projects to work properly: