pratikghimire / toy-robot

Toy Robot Introduction

A command line application is a simulation of a toy robot moving on a square tabletop, of dimensions 5 units x 5 units.

Getting started

Built with

If you are new with ruby, please follow this link to install ruby on your local environment. The ruby version used on this app is 3.1.1.

Installation

There are no operational dependencies. Please note there is no persistent database instead JSON files act as data store.

Clone the repo and change the directory to the project

git clone [email protected]:pratikghimire/toy-robot.git
cd toy-robot

Install dependencies

bundle install

Usage

To generate the summary, please run the following command

ruby ./lib/main.rb

Running the file would prompt to search data which will provide with various options to list search fields,

Testing

Rspec is as a tool for TDD and writing tests. To run the automated tests, please run the following

bundle exec rspec

All specs should be green 🍏

Quality

Rubocop is used for linting (style check). To check for lints, please run the following

bundle exec rubocop

Rubocop output should be green 🍏

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What is this ?

Toy Robot is a ruby coding exercise that we get our potential candidates complete for us to understand their capabilities.

What do I need to do ?

Specification

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 obstructions on the table surface.
• The robot is free to roam around the surface of the table, but must be prevented from falling to destruction. Any movement that would result in the robot falling from the table must be prevented, however further valid movement commands must still be allowed.
• Create an application 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 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