Re-attempting Toy Robot again this time with the help of a walkthrough in applying an OOP approach coupled with much more robust testing of the application.
Clone this repository into your directory. Inside the directory run:
$ bundle install
Note: You must have Ruby installed to run this app
First we need to make this file executable. Run the below command line in terminal.
chmod +x exe/toy_robot
Please look for a commands.txt
file in the root folder. Write out your commands in the .txt
file.
For example :
PLACE 0,0,NORTH
MOVE
REPORT
With the commands present, run the below in terminal:
bundle exec exe/toy_robot commands.txt
You should then see an output similar to the below in terminal if there is a REPORT
command.
Robot is currently at (0, 1) and it's facing NORTH
Change the commands as many times as you wish in the commands.txt file to see different results.
To run tests for the application, enter the below in terminal:
rspec spec
- 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 positionX,Y
and facingNORTH
,SOUTH
,EAST
orWEST
.- The origin (
0,0
) can be considered to be theSOUTH 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 anotherPLACE
command. The application should discard all commands in the sequence until a validPLACE
command has been executed MOVE
will move the toy robot one unit forward in the direction it is currently facing.LEFT
andRIGHT
will rotate the robot 90 degrees in the specified direction without changing the position of the robot.REPORT
will announce theX
,Y
andF
of the robot. This can be in any form, but standard output is sufficient.
- A robot that is not on the table can choose to ignore the
MOVE
,LEFT
,RIGHT
andREPORT
commands. - Input can be from a file, or from standard input, as the developer chooses.
- Provide test data to exercise the application.
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