Haskell Robot Lab

This is an introductory Haskell lab. The primary objective is to implement the runAll function that moves the robot given a string of commands. The commands are G, R and L for Go, Right and Left respectively.

Robots.hs defines a simple main function that takes commands as input and prints the resulting robot and level. Start by implementing runAll a couple of lines down. After that, you can try the extras as well if you want to.

Prerequisites

All you need is GHC and an editor to get going. It is recommended to keep a REPL running to try out your functions and experiment with new stuff:

Starting the REPL

$ cd haskell-robot-lab
$ ghci
...

Loading the code

To call your functions from the REPL you need to load the source file.

Prelude> :l Robots.hs
[1 of 1] Compiling Main             ( Robots.hs, interpreted )
Ok, modules loaded: Main.
Prelude> runAll (0, 0, 0.0) (20, 20) "GGRR"
...

The `main` function

You can run the main function directly from the REPL to try entering robot commands.

Prelude> main
GRGGGGL
...

Reloading the code

After editing Robots.hs you might want to reload it in the REPL.

Prelude> :r
[1 of 1] Compiling Main             ( Robots.hs, interpreted )
Ok, modules loaded: Main.