lsmor

Set Up a Haskell Development Environment in Three Steps

a Haskell Development Environment consist in a compiler (ghc), a language server (hls), a building tool (cabal or stack), and an editor compatible with the language server protocol.

The best way to have a coherent installation of these components is with the ghcup tool.

• Step 1: Install GHCup. You'll be prompted to install some tools. Say yes to hls. Do not install stack yet (see below).
• Step 2: Install vscode
• Step 3: Open vscode and install the haskell extension either using the extension panel or pressing CTRL+P and ext install haskell.haskell.

lsmor

import           Control.Monad                     (void, when)
import qualified Data.Map.Strict                   as Map
import qualified Data.Text                         as T
import           Data.Set                          (Set, (\\), fromList, toList, size)
import           Data.Functor                      ((<&>))
import           Data.Foldable                     (foldl')
import           Data.List                         (sortOn)
import           Data.Ord                          (Down)

import           Language.Plutus.Contract          hiding (when)

lsmor

-- A game with two players. Player 1 thinks of a secret word
-- and uses its hash, and the game validator script, to lock
-- some funds (the prize) in a pay-to-script transaction output.
-- Player 2 guesses the word by attempting to spend the transaction
-- output. If the guess is correct, the validator script releases the funds.
-- If it isn't, the funds stay locked.
import           Control.Monad                     (void, when)
import qualified Data.Map                          as Map
import qualified Data.Text                         as T

lsmor

-- A game with two players. Player 1 thinks of a secret word
-- and uses its hash, and the game validator script, to lock
-- some funds (the prize) in a pay-to-script transaction output.
-- Player 2 guesses the word by attempting to spend the transaction
-- output. If the guess is correct, the validator script releases the funds.
-- If it isn't, the funds stay locked.
import           Control.Monad             (void)
import qualified Data.ByteString.Char8     as C
import           Language.Plutus.Contract
import qualified Language.PlutusTx         as PlutusTx