yevdyko / toy-robot

The application is a simulation of a toy robot moving on a square tabletop

Toy Robot

The application is a simulation of a toy robot moving on a square tabletop written in Ruby.

Available Commands

Commands	Description
PLACE X,Y,F	Place the robot on the table at coordinates x,y and facing the direction f. Valid x andy values are between 0-4. Valid facings are WEST, NORTH, EAST, SOUTH. Example Input: 'PLACE 0,0,NORTH'
MOVE	Move the robot forward 1 step in the direction it is facing.
LEFT	Turn the robot's direction 90 degress to the left. I.e. if the robot is facing NORTH, 1 left turn will turn the robot's direction to WEST.
RIGHT	Turn the robot's direction 90 degress to the right. I.e. if the robot is facing NORTH, 1 left turn will turn the robot's direction to EAST.
REPORT	Output the current position of the robot. Example Output: 'Output: 0,0,NORTH'

Notes

I've used the command pattern to interpret user input and create Ruby objects representing these commands.

Setup

Clone the repository:

$ git clone [email protected]:yevdyko/toy-robot.git

Change into the directory:

$ cd toy-robot

Install the required dependencies:

$ bundle

Testing

To run the tests:

$ rspec

How to use

$ ruby ./bin/app.rb input_file_path.txt

For instance, you can use the following sample files with inputs:

Example A

$ ruby ./bin/app.rb ./data/sample_input_1.txt

Expected Output:

0,1,NORTH

Example B

$ ruby ./bin/app.rb ./data/sample_input_2.txt

Expected Output:

0,0,WEST

Example C

$ ruby ./bin/app.rb ./data/sample_input_3.txt

Expected Output:

3,3,NORTH