The ruby toy robot coding puzzle as made by Jon Eaves. A command line app which simulates a robot moving on a 5 x 5 grid.
I wanted to keep this version pretty basic whilst abstracting the robot, table and controller away from one another. In a future version I will likely include the ability to read commands from a file.
This solution was built using Rspec v3.6 for testing and Ruby v2.4
If you're experiencing any problems running the files please be sure that your Ruby and Rspec versions match the ones above.
Clone or download from Github. If downloaded as a .zip unzip the archive and navigate to the 'ruby_robot' folder in your terminal (containing the spec and lib folders and toy_robot.rb file).
From this folder you can run rspec spec to see a bunch of tests pass or you can run ruby toy_robot.rb to start the application.
The application takes the following commands:
PLACE X,Y,DIRECTION (eg PLACE 2,2,EAST) - places robot on designated co-ordinate and facing in designated direction
LEFT - turns robot 90 degrees counter-clockwise
RIGHT - turns robot 90 degrees clockwise
MOVE - advances robot 1 space forward
REPORT - gives X, Y position and facing direction of robot
EXIT - exits application
The robot can not take any commands when it is not placed on the table, other than a valid PLACE command.
The table size is 5 x 5 and any commands that would cause the robot to fall off the table are in direct violation of Asimov's third law of robotics and a such are ignored for the safety of the machinery.