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https://github.com/FiloSpaTeam/plutus-pioneer-program.git
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using state token
This commit is contained in:
Lars Brünjes
parent
1ab5906489
commit
c9854d6a21
1 changed files with 81 additions and 91 deletions
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@ -32,6 +32,7 @@ import Ledger hiding (singleton)
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import Ledger.Constraints as Constraints
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import qualified Ledger.Typed.Scripts as Scripts
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import Ledger.Ada as Ada
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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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@ -42,6 +43,7 @@ data Game = Game
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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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@ -84,26 +86,32 @@ gameDatum o f = do
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{-# INLINABLE mkGameValidator #-}
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mkGameValidator :: Game -> ByteString -> ByteString -> GameDatum -> GameRedeemer -> ScriptContext -> Bool
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mkGameValidator game bsZero' bsOne' dat red ctx = case (dat, red) of
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mkGameValidator game bsZero' bsOne' dat red ctx =
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traceIfFalse "token missing from input" (assetClassValueOf (txOutValue ownInput) (gToken game) == 1) &&
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case (dat, red) of
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(GameDatum bs Nothing, Play c) ->
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traceIfFalse "not signed by second player" (txSignedBy info (gSecond game)) &&
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traceIfFalse "first player's stake missing" (lovelaces (txOutValue ownInput) == gStake game) &&
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traceIfFalse "second player's stake missing" (lovelaces (txOutValue ownOutput) == (2 * gStake game)) &&
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traceIfFalse "wrong output datum" (outputDatum == GameDatum bs (Just c)) &&
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traceIfFalse "missed deadline" (to (gPlayDeadline game) `contains` txInfoValidRange info)
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traceIfFalse "missed deadline" (to (gPlayDeadline game) `contains` txInfoValidRange info) &&
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traceIfFalse "token missing from output" (assetClassValueOf (txOutValue ownOutput) (gToken game) == 1)
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(GameDatum bs (Just c), Reveal nonce) ->
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traceIfFalse "not signed by first player" (txSignedBy info (gFirst game)) &&
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traceIfFalse "commit mismatch" (checkNonce bs nonce c) &&
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traceIfFalse "missed deadline" (to (gRevealDeadline game) `contains` txInfoValidRange info)
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traceIfFalse "missed deadline" (to (gRevealDeadline game) `contains` txInfoValidRange info) &&
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traceIfFalse "wrong stake" (lovelaces (txOutValue ownInput) == (2 * gStake game))
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(GameDatum _ Nothing, ClaimFirst) ->
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traceIfFalse "not signed by first player" (txSignedBy info (gFirst game)) &&
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traceIfFalse "too early" (from (1 + gPlayDeadline game) `contains` txInfoValidRange info)
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traceIfFalse "too early" (from (1 + gPlayDeadline game) `contains` txInfoValidRange info) &&
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traceIfFalse "first player's stake missing" (lovelaces (txOutValue ownInput) == gStake game)
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(GameDatum _ (Just _), ClaimSecond) ->
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traceIfFalse "not signed by second player" (txSignedBy info (gSecond game)) &&
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traceIfFalse "to early" (from (1 + gRevealDeadline game) `contains` txInfoValidRange info)
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traceIfFalse "to early" (from (1 + gRevealDeadline game) `contains` txInfoValidRange info) &&
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traceIfFalse "wrong stake" (lovelaces (txOutValue ownInput) == (2 * gStake game))
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_ -> False
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where
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@ -158,12 +166,25 @@ gameValidator = Scripts.validatorScript . gameInst
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gameAddress :: Game -> Ledger.Address
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gameAddress = scriptAddress . gameValidator
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findGameOutput :: HasBlockchainActions s => Game -> Contract w s Text (Maybe (TxOutRef, TxOutTx, GameDatum))
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findGameOutput game = do
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utxos <- utxoAt $ gameAddress game
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return $ do
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(oref, o) <- find f $ Map.toList utxos
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dat <- gameDatum (txOutTxOut o) (`Map.lookup` txData (txOutTxTx o))
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return (oref, o, dat)
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where
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f :: (TxOutRef, TxOutTx) -> Bool
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f (_, o) = assetClassValueOf (txOutValue $ txOutTxOut o) (gToken game) == 1
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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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@ -176,8 +197,9 @@ firstGame fp = do
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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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v = lovelaceValueOf $ fpStake fp
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v = lovelaceValueOf (fpStake fp) <> assetClassValue (gToken game) 1
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c = fpChoice fp
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bs = sha2_256 $ fpNonce fp `concatenate` if c == Zero then bsZero else bsOne
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tx = Constraints.mustPayToTheScript (GameDatum bs Nothing) v
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@ -187,10 +209,11 @@ firstGame fp = do
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void $ awaitSlot $ 1 + fpPlayDeadline fp
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m <- findOutput game bs c
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m <- findGameOutput game
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case m of
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Nothing -> logInfo @String "no opportunity to win"
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Just (oref, o, Nothing) -> do
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Nothing -> throwError "game output not found"
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Just (oref, o, dat) -> case dat of
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GameDatum _ Nothing -> do
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logInfo @String "second player did not play"
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let lookups = Constraints.unspentOutputs (Map.singleton oref o) <>
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Constraints.otherScript (gameValidator game)
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@ -198,7 +221,8 @@ firstGame fp = do
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ledgerTx' <- submitTxConstraintsWith @Gaming lookups tx'
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void $ awaitTxConfirmed $ txId ledgerTx'
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logInfo @String "reclaimed stake"
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Just (oref, o, Just _) -> do
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GameDatum _ (Just c') | c' == c -> do
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logInfo @String "second player played and lost"
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let lookups = Constraints.unspentOutputs (Map.singleton oref o) <>
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Constraints.otherScript (gameValidator game)
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@ -207,30 +231,16 @@ firstGame fp = do
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ledgerTx' <- submitTxConstraintsWith @Gaming lookups tx'
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void $ awaitTxConfirmed $ txId ledgerTx'
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logInfo @String "victory"
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where
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findOutput :: Game -> ByteString -> GameChoice -> Contract w s Text (Maybe (TxOutRef, TxOutTx, Maybe GameChoice))
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findOutput game bs c = do
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utxos <- utxoAt $ gameAddress game
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return $ case mapMaybe f $ Map.toList utxos of
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[] -> Nothing
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xs -> case find (\(_, _, mc) -> isJust mc) xs of
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Nothing -> Just $ head xs -- we know this list is not empty, because we are in the second case
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Just x -> Just x
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where
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f :: (TxOutRef, TxOutTx) -> Maybe (TxOutRef, TxOutTx, Maybe GameChoice)
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f (oref, o) = do
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guard $ lovelaces (txOutValue $ txOutTxOut o) == 2 * fpStake fp
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dat <- gameDatum (txOutTxOut o) (`Map.lookup` txData (txOutTxTx o))
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case dat of
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GameDatum bs' mc
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| bs' == bs && (isNothing mc || mc == Just c) -> return (oref, o, mc)
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_ -> Nothing
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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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@ -243,19 +253,20 @@ secondGame sp = do
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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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m <- findOutput game
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m <- findGameOutput game
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case m of
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Nothing -> logInfo @String "no running game found"
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Just (oref, o, bs) -> do
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Just (oref, o, GameDatum bs Nothing) -> do
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logInfo @String "running game found"
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let v = lovelaceValueOf $ spStake sp
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let token = assetClassValue (gToken game) 1
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let v = let x = lovelaceValueOf (spStake sp) in x <> x <> token
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c = spChoice sp
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lookups = Constraints.unspentOutputs (Map.singleton oref o) <>
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Constraints.otherScript (gameValidator game) <>
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Constraints.scriptInstanceLookups (gameInst game)
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tx = Constraints.mustSpendScriptOutput oref (Redeemer $ PlutusTx.toData $ Play c) <>
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Constraints.mustPayToTheScript (GameDatum bs $ Just c) (v <> v) <>
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Constraints.mustPayToTheScript (GameDatum bs $ Just c) v <>
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Constraints.mustValidateIn (to $ spPlayDeadline sp)
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ledgerTx <- submitTxConstraintsWith @Gaming lookups tx
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let tid = txId ledgerTx
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@ -264,42 +275,21 @@ secondGame sp = do
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void $ awaitSlot $ 1 + spRevealDeadline sp
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m' <- findOutput' game tid
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m' <- findGameOutput game
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case m' of
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Nothing -> logInfo @String "first player won"
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Just (oref', o') -> do
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Just (oref', o', _) -> do
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logInfo @String "first player didn't reveal"
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let lookups' = Constraints.unspentOutputs (Map.singleton oref' o') <>
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Constraints.otherScript (gameValidator game)
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tx' = Constraints.mustSpendScriptOutput oref' (Redeemer $ PlutusTx.toData ClaimSecond) <>
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Constraints.mustValidateIn (from $ 1 + spRevealDeadline sp)
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Constraints.mustValidateIn (from $ 1 + spRevealDeadline sp) <>
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Constraints.mustPayToPubKey (spFirst sp) token
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ledgerTx' <- submitTxConstraintsWith @Gaming lookups' tx'
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void $ awaitTxConfirmed $ txId ledgerTx'
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logInfo @String "second player won"
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where
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findOutput :: Game -> Contract w s Text (Maybe (TxOutRef, TxOutTx, ByteString))
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findOutput game = do
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now <- currentSlot
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if now > spPlayDeadline sp
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then return Nothing
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else do
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utxos <- utxoAt $ gameAddress game
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return $ case mapMaybe f $ Map.toList utxos of
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[] -> Nothing
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x : _ -> Just x
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where
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f :: (TxOutRef, TxOutTx) -> Maybe (TxOutRef, TxOutTx, ByteString)
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f (oref, o) = do
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guard $ lovelaces (txOutValue $ txOutTxOut o) == spStake sp
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dat <- gameDatum (txOutTxOut o) (`Map.lookup` txData (txOutTxTx o))
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case dat of
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GameDatum bs Nothing -> return (oref, o, bs)
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_ -> Nothing
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findOutput' :: Game -> TxId -> Contract w s Text (Maybe (TxOutRef, TxOutTx))
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findOutput' game tid = do
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utxos <- utxoAt $ gameAddress game
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return $ find (\(oref, _) -> txOutRefId oref == tid) $ Map.toList utxos
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_ -> logInfo @String "no running game found"
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type GameSchema = BlockchainActions .\/ Endpoint "first" FirstParams .\/ Endpoint "second" SecondParams
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