Lukas Bloznelis uzduotis nr.3 FInal

open System

type Suit =
        | Hearts
        | Diamonds
        | Clubs
        | Spades

type Rank =
        | Two      | Three  | Four     | Five
        | Six      | Seven  | Eight
        | Nine     | Ten    | Jack
        | Queen    | King   | Ace

type Card       = Card      of (Rank*Suit)
type CardPile   = CardPile  of Card list
type Trump      = Trump     of Suit

let  newDeck =  [ (Rank.Two, Suit.Spades); (Rank.Three, Suit.Spades); (Rank.Four, Suit.Spades);  (Rank.Five, Suit.Spades);
                 (Rank.Six, Suit.Spades); (Rank.Seven, Suit.Spades); (Rank.Eight, Suit.Spades); (Rank.Nine, Suit.Spades);
                 (Rank.Ten, Suit.Spades); (Rank.Jack, Suit.Spades); (Rank.Queen, Suit.Spades); (Rank.King, Suit.Spades);
                 (Rank.Ace, Suit.Spades);

                 (Rank.Two, Suit.Hearts); (Rank.Three, Suit.Hearts); (Rank.Four, Suit.Hearts); (Rank.Five, Suit.Hearts);
                 (Rank.Six, Suit.Hearts); (Rank.Seven, Suit.Hearts); (Rank.Eight, Suit.Hearts); (Rank.Nine, Suit.Hearts);
                 (Rank.Ten, Suit.Hearts); (Rank.Jack, Suit.Hearts); (Rank.Queen, Suit.Hearts); (Rank.King, Suit.Hearts);
                 (Rank.Ace, Suit.Hearts);

                 (Rank.Two, Suit.Clubs); (Rank.Three, Suit.Clubs); (Rank.Four, Suit.Clubs); (Rank.Five, Suit.Clubs);
                 (Rank.Six, Suit.Clubs); (Rank.Seven, Suit.Clubs); (Rank.Eight, Suit.Clubs); (Rank.Nine, Suit.Clubs);
                 (Rank.Ten, Suit.Clubs); (Rank.Jack, Suit.Clubs); (Rank.Queen, Suit.Clubs); (Rank.King, Suit.Clubs);
                 (Rank.Ace, Suit.Clubs);

                 (Rank.Two, Suit.Spades); (Rank.Three, Suit.Spades); (Rank.Four, Suit.Spades); (Rank.Five, Suit.Spades);
                 (Rank.Six, Suit.Spades); (Rank.Seven, Suit.Spades); (Rank.Eight, Suit.Spades); (Rank.Nine, Suit.Spades);
                 (Rank.Ten, Suit.Spades); (Rank.Jack, Suit.Spades); (Rank.Queen, Suit.Spades); (Rank.King, Suit.Spades);
                 (Rank.Ace, Suit.Spades);
               ]

let shuffle deck =
    let random = new System.Random()
    deck |> List.sortBy (fun card -> random.Next())

let findRandomItem lst (rng : Random)  =
    List.nth lst (rng.Next(List.length lst))

let CreateDeck =
    CardPile (shuffle [for i in 0 .. newDeck.Length-1 -> Card (newDeck.Item(i))] )

let SelectTrump =
    let random = new Random()
    let list = [Suit.Hearts;Suit.Clubs;Suit.Diamonds;Suit.Spades]
    Trump (findRandomItem list random)

let everyNth n seq =
    seq |> List.mapi (fun i el -> el, i)
        |> List.filter (fun (el, i) -> i % n = n - 1)
        |> List.map fst

let DealCardsForPlayer1 (CardPile mainDeck) =
    CardPile (everyNth 2 mainDeck)

let DealCardsForPlayer2 (CardPile mainDeck) =
    let list1 = (everyNth 2 mainDeck.Tail)
    CardPile (mainDeck.Item(0)::list1)

let HigherCard (Card p1) (Card p2) =
    if p1>p2 then
        true,false      //P1 WINS
    elif p2 > p1 then
        false,true      //P2 WINS
    else
        false,false     //DRAW

let Won (Card p1) (Card p2) (Trump trump) =
    let (p1Rank,p1Suit) = p1
    let (p2Rank,p2Suit) = p2

    if p1Suit.Equals(trump) then
        if p2Suit.Equals(trump) then
            HigherCard (Card p1) (Card p2)
        else
            true,false
    elif p2Suit.Equals(trump) then
        false,true
    else
        HigherCard (Card p1) (Card p2)

let Fight (CardPile p1) (CardPile p2) (trump:Trump) =

    let (p1Wins,p2Wins) = Won p1.Head p2.Head trump

    if   p1Wins then   2,0
    elif p2Wins then   0,2
    else               1,1

let PrintScore (score:int*int) =
    let (a,b) = score
    printfn "Player1 score : %A" a
    printfn "Player2 score : %A" b
    if a>b then
            printfn "PLAYER1 WINS"
        elif a<b  then
            printfn "PLAYER2 WINS"
        else
            printfn "GAME DRAW"

let rec PlayGame (CardPile p1) (CardPile p2) (Trump trump) mainScore =
    if p1.Length.Equals(0) then
        PrintScore mainScore
    else
        let (Player1Score,Player2Score) = Fight (CardPile p1) (CardPile p2) (Trump trump)
        let (a,b) = mainScore
        let score  = (a + Player1Score, b + Player2Score)
        PlayGame (CardPile p1.Tail) (CardPile p2.Tail) (Trump trump) score

let getTrumpName (Trump trump) =
    trump

let StartGame() =
    printfn "STARTING GAME"
    let deck =  CreateDeck
    printfn "Deck has been created and shuffled"
    let trump = SelectTrump
    printfn "Trump has been selected : %A" (getTrumpName trump)
    let p1deck =  deck|>DealCardsForPlayer1
    printfn "Player 1 deck has been created"
    let p2deck =  deck|>DealCardsForPlayer2
    printfn "Player 2 deck has been created"
    printfn "PLAYING GAME"
    let  StartingScore   = (0,0)
    PlayGame p1deck p2deck trump StartingScore
    printfn "GAME OVER"
StartGame()

Console.ReadKey() |> ignore