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mars_rover_kata.md

Mars Rover movement

Description

In this exercise we'll implement from scratch part of the Mars Rover kata.

The rover interface would have only one method: receive(commands: string): void

This is a summary of the behavior of the rover that we'll implement:

  • It's located on a grid at some point with coordinates (x,y) and facing a direction encoded with a character.

  • The meaning of each direction character is:

    • N -> North
    • S -> South
    • E -> East
    • W -> West

  • The rover receives a sequence of commands (a string of characters) which are codified in the following way:

    • When it receives an f, it moves forward one position in the direction it is facing.
    • When it receives a b, it moves backward one position in the direction it is facing.
    • When it receives a l, it turns left changing its direction (by one step in the direction).
    • When it receives a r, it turns right changing its direction (by one step in the direction).

  • The rover ignores unknown commands.

  • The rover wraps at the edges, but be careful, it's visiting a flat planet with teleporting edges (ask the product owner once you finish implementing the rover movement).

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