ramyaravindranath6 / toy-robo

A toy robo simulator app

Toy Robot

This is a simple toy robo simulator app.

How to run locally:

Note: ruby 2.7.6 is used for this solution

• git clone https://github.com/ramyaravindranath6/toy-robo.git
• cd toy-robo
• bundle install
• ruby main.rb

To run specs:

• bundle exec rspec will run all specs

How to run on Docker:

I have also provided an option of running this on docker.

To run this, you should have docker running on your system (Docker can be downloaded here - https://docs.docker.com/get-docker/)

• cd toy-robo
• docker build -t toy-app .
• docker run -it toy-app

Following commands can be issued on the toy robo

  PLACE X,Y,F
  MOVE
  LEFT
  RIGHT
  REPORT

• PLACE will put the toy robot on the table in position 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 application 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 direction it is currently facing.
• LEFT and RIGHT will rotate the robot 90 degrees in the specified direction without changing the position 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 application.

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