Robot Simulator

Run instructions

Run the program with command below:

ruby robot_simulator.rb

Or you can also run it with the following command with sample data file (command.txt):

cat command.txt | ruby robot_simulator.rb

You can either run the Rspec tests (with test coverage included) with command below:

bundle install
bundle exec rspec spec

I have also included Rubocop gem to ensure the source code meets the Ruby coding standards. Please run the following command to check for styles:

rubocop

Specification

This program is written and executed with Ruby version 2-2-3p173

Please find the gems that I have used while working on this project:

• Rubocop - Static code analyser and checker which checks against the Ruby coding style.
• Rspec - BDD Test Framework for Ruby
• Simplecov - Code coverage tool for Ruby

Please refer to file command.txt for sample test data.

Description:

• The application is a simulation of a toy robot moving on a square tabletop, of dimensions 5 units x 5 units

• There are no other obstrucioons on the table surface

• The robot is free to roam around the surface of the table, but must be prevented from falling to destrucioon- Any movement that would result in the robot falling from the table must be prevented, however further valid movement commands must sioll be allowed

• Create an applicaioon that can read in commands of the following form

PLACE X,Y,F
MOVE
LEFT
RIGHT
REPORT

• PLACE will put the toy robot on the table in posiioon X,Y and facing NORTH, SOUTH, EAST or WEST

• The origin (0,0) can be considered to be the SOUTH WEST most corner-

• The first valid command to the robot is a PLACE command, after that, any sequence of commands may be issued, in any order, including another PLACE command- The applicaioon should discard all commands in the sequence until a valid PLACE command has been executed

• MOVE will move the toy robot one unit forward in the direcioon it is currently facing-

• LEFT and RIGHT will rotate the robot 90 degrees in the specified direcioon without changing the posiioon of the robot

• REPORT will announce the X,Y and F of the robot- This can be in any form, but standard output is sufficient

• A robot that is not on the table can choose the ignore the MOVE, LEFT, RIGHT and REPORT commands

• Input can be from a file, or from standard input, as the developer chooses- - Provide test data to exercise the applicaioon

Constraints:

The toy robot must not fall off the table during movement- This also includes the initial placement of the toy robot Any move that would cause the robot to fall must be ignored-

Example Input and Output:

a)
PLACE 0,0,NORTH
MOVE
REPORT
Output: 0,1,NORTH
b)
PLACE 0,0,NORTH
LEFT
REPORT
Output: 0,0,WEST
c)
PLACE 1,2,EAST
MOVE
MOVE
LEFT
MOVE
REPORT
Output: 3,3,NORTH

Deliverables:

The source files, the test data and any test code It is not required to provide any graphical output showing the movement of the toy robot