https://github.com/mauricioszabo/mars-rover

https://github.com/mauricioszabo/mars-rover

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• Host: GitHub
• URL: https://github.com/mauricioszabo/mars-rover
• Owner: mauricioszabo
• Created: 2016-11-25T17:26:15.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2016-11-26T20:56:23.000Z (about 8 years ago)
• Last Synced: 2024-11-09T05:31:46.236Z (about 2 months ago)
• Language: Clojure
• Size: 21.5 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# MARS

Rover simulation application in Clojure.

## Overview

This rover simulation is implemented based on rules from: https://gist.github.com/nirev/c42c35eb9a839f7756558519f361bc06

Changes from implementation: in case of parse error or other problems

(like, rover is out of field or parse error), the following rules would be implemented:

* If there's a parse error - three coordinates for start, or invalid characters

in rover's movement: nothing will be simulated, and we'll just return the

string `INVALID-FORMAT`

* If it's possible to parse commands, but after obeying one command rover would be

in an invalid position - out of bounds - we'll return `ERROR OUT-OF-FIELD `, followed

by the last valid position of rover before it reached an invalid coordinate.

## Setup

To get a webserver, run:

    lein run

Then, pass commands using PUT in "localhost:3001/mars". You can use curl:

    curl localhost:3001/move -XPUT -d "5 5

    1 2 N

    LMLMLMLMM

    3 3 E

    MMRMMRMRRM"

## Some examples

This code is deployed on heroku, at https://rock-and-rover.herokuapp.com/. We'll use

`curl` and try to send coordinates to one or more rovers:

```sh

# case 1 - everything is correct

curl https://rock-and-rover.herokuapp.com/move -XPUT -d "5 5

1 2 N

LMLMLMLMM

3 3 E

MMRMMRMRRM"

# returns

1 3 N

5 1 E

# case 2 - parse error (movement of rover 2 includes A

curl https://rock-and-rover.herokuapp.com/move -XPUT -d "5 5

1 2 N

LMLMLMLMM

3 3 E

MMRMMRMRRMA"

# returns

INVALID-FORMAT

# case 3 - rover is out of field

$ curl https://rock-and-rover.herokuapp.com/move -XPUT -d "5 5

1 2 N

LMLMLMLMM

3 3 E

MMRMMRMRRMMMMMMMMM"

# returns

1 3 N

ERROR OUT-OF-FIELD 5 1 E

```

## License

Copyright Maurício Szabo © 2016

Distributed under the Creative Commons attibution non-commercial non-derivatives license.