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https://github.com/FiloSpaTeam/plutus-pioneer-program.git
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solution for week 7
This commit is contained in:
Lars Brünjes
parent
652764d17b
commit
475c6eda3f
3 changed files with 400 additions and 0 deletions
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@ -11,8 +11,10 @@ License-files: LICENSE
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library
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hs-source-dirs: src
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exposed-modules: Week07.EvenOdd
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, Week07.RockPaperScissors
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, Week07.StateMachine
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, Week07.Test
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, Week07.TestRockPaperScissors
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, Week07.TestStateMachine
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build-depends: aeson
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, base ^>=4.14.1.0
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302
code/week07/src/Week07/RockPaperScissors.hs
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302
code/week07/src/Week07/RockPaperScissors.hs
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@ -0,0 +1,302 @@
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveAnyClass #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE MultiParamTypeClasses #-}
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{-# LANGUAGE NoImplicitPrelude #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE TypeOperators #-}
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module Week07.RockPaperScissors
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( Game (..)
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, GameChoice (..)
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, FirstParams (..)
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, SecondParams (..)
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, GameSchema
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, endpoints
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) where
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import Control.Monad hiding (fmap)
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import Data.Aeson (FromJSON, ToJSON)
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import Data.Text (Text, pack)
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import GHC.Generics (Generic)
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import Plutus.Contract as Contract hiding (when)
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import Plutus.Contract.StateMachine
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import qualified PlutusTx
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import PlutusTx.Prelude hiding (Semigroup(..), check, unless)
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import Ledger hiding (singleton)
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import Ledger.Ada as Ada
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import Ledger.Constraints as Constraints
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import Ledger.Typed.Tx
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import qualified Ledger.Typed.Scripts as Scripts
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import Ledger.Value
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import Playground.Contract (ToSchema)
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import Prelude (Semigroup (..))
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import qualified Prelude
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data Game = Game
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{ gFirst :: !PubKeyHash
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, gSecond :: !PubKeyHash
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, gStake :: !Integer
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, gPlayDeadline :: !Slot
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, gRevealDeadline :: !Slot
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, gToken :: !AssetClass
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} deriving (Show, Generic, FromJSON, ToJSON, Prelude.Eq, Prelude.Ord)
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PlutusTx.makeLift ''Game
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data GameChoice = Rock | Paper | Scissors
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deriving (Show, Generic, FromJSON, ToJSON, ToSchema, Prelude.Eq, Prelude.Ord)
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instance Eq GameChoice where
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{-# INLINABLE (==) #-}
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Rock == Rock = True
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Paper == Paper = True
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Scissors == Scissors = True
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_ == _ = False
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PlutusTx.unstableMakeIsData ''GameChoice
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{-# INLINABLE beats #-}
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beats :: GameChoice -> GameChoice -> Bool
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beats Rock Scissors = True
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beats Paper Rock = True
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beats Scissors Paper = True
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beats _ _ = False
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data GameDatum = GameDatum ByteString (Maybe GameChoice) | Finished
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deriving Show
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instance Eq GameDatum where
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{-# INLINABLE (==) #-}
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GameDatum bs mc == GameDatum bs' mc' = (bs == bs') && (mc == mc')
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Finished == Finished = True
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_ == _ = False
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PlutusTx.unstableMakeIsData ''GameDatum
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data GameRedeemer = Play GameChoice | Reveal ByteString GameChoice | ClaimFirst | ClaimSecond
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deriving Show
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PlutusTx.unstableMakeIsData ''GameRedeemer
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{-# INLINABLE lovelaces #-}
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lovelaces :: Value -> Integer
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lovelaces = Ada.getLovelace . Ada.fromValue
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{-# INLINABLE gameDatum #-}
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gameDatum :: TxOut -> (DatumHash -> Maybe Datum) -> Maybe GameDatum
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gameDatum o f = do
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dh <- txOutDatum o
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Datum d <- f dh
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PlutusTx.fromData d
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{-# INLINABLE transition #-}
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transition :: Game -> State GameDatum -> GameRedeemer -> Maybe (TxConstraints Void Void, State GameDatum)
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transition game s r = case (stateValue s, stateData s, r) of
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(v, GameDatum bs Nothing, Play c)
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| lovelaces v == gStake game -> Just ( Constraints.mustBeSignedBy (gSecond game) <>
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Constraints.mustValidateIn (to $ gPlayDeadline game)
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, State (GameDatum bs $ Just c) (lovelaceValueOf $ 2 * gStake game)
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)
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(v, GameDatum _ (Just c), Reveal _ c')
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| (lovelaces v == (2 * gStake game)) &&
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(c' `beats` c) -> Just ( Constraints.mustBeSignedBy (gFirst game) <>
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Constraints.mustValidateIn (to $ gRevealDeadline game) <>
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Constraints.mustPayToPubKey (gFirst game) token
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, State Finished mempty
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)
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| (lovelaces v == (2 * gStake game)) &&
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(c' == c) -> Just ( Constraints.mustBeSignedBy (gFirst game) <>
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Constraints.mustValidateIn (to $ gRevealDeadline game) <>
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Constraints.mustPayToPubKey (gFirst game) token <>
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Constraints.mustPayToPubKey (gSecond game)
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(lovelaceValueOf $ gStake game)
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, State Finished mempty
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)
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(v, GameDatum _ Nothing, ClaimFirst)
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| lovelaces v == gStake game -> Just ( Constraints.mustBeSignedBy (gFirst game) <>
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Constraints.mustValidateIn (from $ 1 + gPlayDeadline game) <>
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Constraints.mustPayToPubKey (gFirst game) token
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, State Finished mempty
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)
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(v, GameDatum _ (Just _), ClaimSecond)
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| lovelaces v == (2 * gStake game) -> Just ( Constraints.mustBeSignedBy (gSecond game) <>
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Constraints.mustValidateIn (from $ 1 + gRevealDeadline game) <>
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Constraints.mustPayToPubKey (gFirst game) token
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, State Finished mempty
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)
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_ -> Nothing
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where
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token :: Value
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token = assetClassValue (gToken game) 1
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{-# INLINABLE final #-}
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final :: GameDatum -> Bool
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final Finished = True
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final _ = False
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{-# INLINABLE check #-}
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check :: ByteString -> ByteString -> ByteString -> GameDatum -> GameRedeemer -> ScriptContext -> Bool
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check bsRock' bsPaper' bsScissors' (GameDatum bs (Just _)) (Reveal nonce c) _ =
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sha2_256 (nonce `concatenate` toBS c) == bs
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where
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toBS :: GameChoice -> ByteString
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toBS Rock = bsRock'
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toBS Paper = bsPaper'
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toBS Scissors = bsScissors'
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check _ _ _ _ _ _ = True
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{-# INLINABLE gameStateMachine #-}
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gameStateMachine :: Game -> ByteString -> ByteString -> ByteString -> StateMachine GameDatum GameRedeemer
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gameStateMachine game bsRock' bsPaper' bsScissors' = StateMachine
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{ smTransition = transition game
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, smFinal = final
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, smCheck = check bsRock' bsPaper' bsScissors'
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, smThreadToken = Just $ gToken game
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}
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{-# INLINABLE mkGameValidator #-}
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mkGameValidator :: Game -> ByteString -> ByteString -> ByteString -> GameDatum -> GameRedeemer -> ScriptContext -> Bool
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mkGameValidator game bsRock' bsPaper' bsScissors' = mkValidator $ gameStateMachine game bsRock' bsPaper' bsScissors'
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type Gaming = StateMachine GameDatum GameRedeemer
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bsRock, bsPaper, bsScissors :: ByteString
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bsRock = "R"
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bsPaper = "P"
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bsScissors = "S"
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gameStateMachine' :: Game -> StateMachine GameDatum GameRedeemer
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gameStateMachine' game = gameStateMachine game bsRock bsPaper bsScissors
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gameInst :: Game -> Scripts.ScriptInstance Gaming
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gameInst game = Scripts.validator @Gaming
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($$(PlutusTx.compile [|| mkGameValidator ||])
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`PlutusTx.applyCode` PlutusTx.liftCode game
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`PlutusTx.applyCode` PlutusTx.liftCode bsRock
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`PlutusTx.applyCode` PlutusTx.liftCode bsPaper
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`PlutusTx.applyCode` PlutusTx.liftCode bsScissors)
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$$(PlutusTx.compile [|| wrap ||])
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where
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wrap = Scripts.wrapValidator @GameDatum @GameRedeemer
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gameValidator :: Game -> Validator
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gameValidator = Scripts.validatorScript . gameInst
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gameAddress :: Game -> Ledger.Address
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gameAddress = scriptAddress . gameValidator
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gameClient :: Game -> StateMachineClient GameDatum GameRedeemer
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gameClient game = mkStateMachineClient $ StateMachineInstance (gameStateMachine' game) (gameInst game)
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data FirstParams = FirstParams
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{ fpSecond :: !PubKeyHash
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, fpStake :: !Integer
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, fpPlayDeadline :: !Slot
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, fpRevealDeadline :: !Slot
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, fpNonce :: !ByteString
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, fpCurrency :: !CurrencySymbol
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, fpTokenName :: !TokenName
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, fpChoice :: !GameChoice
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} deriving (Show, Generic, FromJSON, ToJSON, ToSchema)
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mapError' :: Contract w s SMContractError a -> Contract w s Text a
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mapError' = mapError $ pack . show
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firstGame :: forall w s. HasBlockchainActions s => FirstParams -> Contract w s Text ()
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firstGame fp = do
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pkh <- pubKeyHash <$> Contract.ownPubKey
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let game = Game
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{ gFirst = pkh
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, gSecond = fpSecond fp
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, gStake = fpStake fp
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, gPlayDeadline = fpPlayDeadline fp
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, gRevealDeadline = fpRevealDeadline fp
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, gToken = AssetClass (fpCurrency fp, fpTokenName fp)
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}
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client = gameClient game
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v = lovelaceValueOf (fpStake fp)
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c = fpChoice fp
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x = case c of
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Rock -> bsRock
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Paper -> bsPaper
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Scissors -> bsScissors
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bs = sha2_256 $ fpNonce fp `concatenate` x
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void $ mapError' $ runInitialise client (GameDatum bs Nothing) v
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logInfo @String $ "made first move: " ++ show (fpChoice fp)
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void $ awaitSlot $ 1 + fpPlayDeadline fp
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m <- mapError' $ getOnChainState client
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case m of
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Nothing -> throwError "game output not found"
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Just ((o, _), _) -> case tyTxOutData o of
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GameDatum _ Nothing -> do
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logInfo @String "second player did not play"
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void $ mapError' $ runStep client ClaimFirst
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logInfo @String "first player reclaimed stake"
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GameDatum _ (Just c') | c `beats` c' || c' == c -> do
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logInfo @String "second player played and lost or drew"
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void $ mapError' $ runStep client $ Reveal (fpNonce fp) c
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logInfo @String "first player revealed and won or drew"
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_ -> logInfo @String "second player played and won"
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data SecondParams = SecondParams
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{ spFirst :: !PubKeyHash
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, spStake :: !Integer
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, spPlayDeadline :: !Slot
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, spRevealDeadline :: !Slot
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, spCurrency :: !CurrencySymbol
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, spTokenName :: !TokenName
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, spChoice :: !GameChoice
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} deriving (Show, Generic, FromJSON, ToJSON, ToSchema)
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secondGame :: forall w s. HasBlockchainActions s => SecondParams -> Contract w s Text ()
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secondGame sp = do
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pkh <- pubKeyHash <$> Contract.ownPubKey
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let game = Game
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{ gFirst = spFirst sp
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, gSecond = pkh
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, gStake = spStake sp
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, gPlayDeadline = spPlayDeadline sp
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, gRevealDeadline = spRevealDeadline sp
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, gToken = AssetClass (spCurrency sp, spTokenName sp)
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}
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client = gameClient game
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m <- mapError' $ getOnChainState client
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case m of
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Nothing -> logInfo @String "no running game found"
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Just ((o, _), _) -> case tyTxOutData o of
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GameDatum _ Nothing -> do
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logInfo @String "running game found"
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void $ mapError' $ runStep client $ Play $ spChoice sp
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logInfo @String $ "made second move: " ++ show (spChoice sp)
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void $ awaitSlot $ 1 + spRevealDeadline sp
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m' <- mapError' $ getOnChainState client
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case m' of
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Nothing -> logInfo @String "first player won or drew"
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Just _ -> do
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logInfo @String "first player didn't reveal"
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void $ mapError' $ runStep client ClaimSecond
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logInfo @String "second player won"
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_ -> throwError "unexpected datum"
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type GameSchema = BlockchainActions .\/ Endpoint "first" FirstParams .\/ Endpoint "second" SecondParams
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endpoints :: Contract () GameSchema Text ()
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endpoints = (first `select` second) >> endpoints
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where
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first = endpoint @"first" >>= firstGame
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second = endpoint @"second" >>= secondGame
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96
code/week07/src/Week07/TestRockPaperScissors.hs
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96
code/week07/src/Week07/TestRockPaperScissors.hs
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@ -0,0 +1,96 @@
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveAnyClass #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE MultiParamTypeClasses #-}
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{-# LANGUAGE NoImplicitPrelude #-}
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{-# LANGUAGE NumericUnderscores #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE TypeOperators #-}
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module Week07.TestRockPaperScissors where
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import Control.Monad hiding (fmap)
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import Control.Monad.Freer.Extras as Extras
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import Data.Default (Default (..))
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import qualified Data.Map as Map
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import Ledger
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import Ledger.Value
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import Ledger.Ada as Ada
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import Plutus.Trace.Emulator as Emulator
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import PlutusTx.Prelude
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import Wallet.Emulator.Wallet
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import Week07.RockPaperScissors
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test :: IO ()
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test = do
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test' Rock Rock
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test' Rock Paper
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test' Rock Scissors
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test' Paper Rock
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test' Paper Paper
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test' Paper Scissors
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test' Scissors Rock
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test' Scissors Paper
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test' Scissors Scissors
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test' :: GameChoice -> GameChoice -> IO ()
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test' c1 c2 = runEmulatorTraceIO' def emCfg $ myTrace c1 c2
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where
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emCfg :: EmulatorConfig
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emCfg = EmulatorConfig $ Left $ Map.fromList
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[ (Wallet 1, v <> assetClassValue (AssetClass (gameTokenCurrency, gameTokenName)) 1)
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, (Wallet 2, v)
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]
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v :: Value
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v = Ada.lovelaceValueOf 1000_000_000
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gameTokenCurrency :: CurrencySymbol
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gameTokenCurrency = "ff"
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gameTokenName :: TokenName
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gameTokenName = "STATE TOKEN"
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myTrace :: GameChoice -> GameChoice -> EmulatorTrace ()
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myTrace c1 c2 = do
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Extras.logInfo $ "first move: " ++ show c1 ++ ", second move: " ++ show c2
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h1 <- activateContractWallet (Wallet 1) endpoints
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h2 <- activateContractWallet (Wallet 2) endpoints
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let pkh1 = pubKeyHash $ walletPubKey $ Wallet 1
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pkh2 = pubKeyHash $ walletPubKey $ Wallet 2
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fp = FirstParams
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{ fpSecond = pkh2
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, fpStake = 5000000
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, fpPlayDeadline = 5
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, fpRevealDeadline = 10
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, fpNonce = "SECRETNONCE"
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, fpCurrency = gameTokenCurrency
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, fpTokenName = gameTokenName
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, fpChoice = c1
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}
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sp = SecondParams
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{ spFirst = pkh1
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, spStake = 5000000
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, spPlayDeadline = 5
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, spRevealDeadline = 10
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, spCurrency = gameTokenCurrency
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, spTokenName = gameTokenName
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, spChoice = c2
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}
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callEndpoint @"first" h1 fp
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void $ Emulator.waitNSlots 3
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callEndpoint @"second" h2 sp
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void $ Emulator.waitNSlots 10
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