contracts craps, zaCoin

Craps/config.json

@@ -0,0 +1 @@
+{"name":"Craps","abi":{"methods":[{"name":"_deploy","offset":0,"parameters":[{"name":"data","type":"Any"},{"name":"isUpdate","type":"Boolean"}],"returntype":"Void","safe":false},{"name":"onNEP17Payment","offset":165,"parameters":[{"name":"from","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Void","safe":false},{"name":"playCraps","offset":95,"parameters":[{"name":"bet","type":"Integer"},{"name":"firstSum","type":"Integer"},{"name":"secondSum","type":"Integer"}],"returntype":"Void","safe":false}],"events":[]},"features":{},"groups":[],"permissions":[{"contract":"*","methods":"*"}],"supportedstandards":[],"trusts":[],"extra":null}

Craps/craps.go

@@ -1,22 +1,99 @@
 package Craps
 
 import (
+
+	"github.com/nspcc-dev/neo-go/pkg/interop"
+	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
+	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 )
 
-func IsWinner(firstSum int, secondSum int) bool {
-	if (!((firstSum >= 3 && firstSum <= 18) && (secondSum >= 3 && firstSum <= 18))){
-		panic("first and second sum should be from 3 to 36")
+const (
+	gasDecimals    = 1_0000_0000
+	initialBalance = 3000
+	zaCoinHashKey = "zaCoinHash"
+)
+
+func _deploy(data interface{}, isUpdate bool) {
+	if isUpdate {
+		return
 	}
 
-	sum := 0
+	// Parse hash of forint contract from incoming data
+	args := data.(struct {
+		zaCoinHash interop.Hash160
+	})
 
-	for i:=0; i<3; i++ {
-		crap := randomInRange(1, 6)
-        	runtime.Notify("Crup number: %d,Random Number: %d", i+1,  randomNumber)
-		sum += crup
+	if len(args.zaCoinHash) != interop.Hash160Len {
+                panic("invalid hash of zaCoin contract")
+        }
+
+
+	ctx := storage.GetContext()
+	storage.Put(ctx, zaCoinHashKey, args.zaCoinHash)
+}
+
+func PlayCraps(bet int, firstSum int, secondSum int) {
+	ctx := storage.GetContext()
+	playerOwner := runtime.GetScriptContainer().Sender
+	isWin := isWinner(firstSum, secondSum)
+	if (isWin){
+		changePlayerBalance(ctx, playerOwner, bet)
+	} else {
+		changePlayerBalance(ctx, playerOwner, -bet)
 	}
+}
+
+func isWinner(firstSum int, secondSum int) bool {
+	//if (!((firstSum >= 3 && firstSum <= 18) && (secondSum >= 3 && firstSum <= 18))){
+	//	panic("first and second sum should be from 3 to 18")
+	//}
+
+	//sum := 0
+
+	//for i:=0; i<3; i++ {
+	//	crap := rand.Intn(5) + 1
+        //	runtime.Notify("Crup number: %d,Random Number: %d", i+1,  crap)
+	//	sum += crap
+	//}
+	var sum int 
+	sum = runtime.GetRandom()
 
 	return sum == firstSum || sum == secondSum
 }
 
+
+func OnNEP17Payment(from interop.Hash160, amount int, data any) {
+	ctx := storage.GetContext()
+	zaCoinHash := storage.Get(ctx, zaCoinHashKey).(interop.Hash160)
+
+	callingHash := runtime.GetCallingScriptHash()
+	if !callingHash.Equals(zaCoinHash) {
+		panic("only ZC is accepted")
+	}
+}
+
+func changePlayerBalance(ctx storage.Context, playerOwner interop.Hash160, balanceChange int) {
+	zaCoinHash := storage.Get(ctx, zaCoinHashKey).(interop.Hash160)
+	playerContract := runtime.GetExecutingScriptHash()
+
+	var from, to interop.Hash160
+	var transferAmount int
+	if balanceChange > 0 {
+		// Transfer funds from contract to player owner
+		from = playerContract
+		to = playerOwner
+		transferAmount = balanceChange
+	} else {
+		// Transfer funds from player owner to contract
+		from = playerOwner
+		to = playerContract
+		transferAmount = -balanceChange // We flip sender/receiver, but keep amount positive
+	}
+
+	transferred := contract.Call(zaCoinHash, "transfer", contract.All, from, to, transferAmount, nil).(bool)
+	if !transferred {
+		panic("failed to transfer zaCoins")
+	}
+}
+

Craps/craps.yml

@@ -1,11 +1,5 @@
 name: Craps
-sourceurl: http://example.com/
-safemethods: []
 supportedstandards: []
 events:
-    - name: Hello world!
-      parameters:
-        - name: args
-          type: Array
 permissions:
     - methods: '*'

Craps/go.mod

@@ -1,4 +1,7 @@
 module Craps
-require (
-	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5
-)
+
+go 1.21.4
+
+require github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231121104256-0493ddbd70b2
+
+require github.com/nspcc-dev/neo-go v0.104.0 // indirect

Craps/go.sum

@@ -0,0 +1,6 @@
+github.com/nspcc-dev/neo-go v0.104.0 h1:FGj3Z46yABcFIAI1SCLd1jQSoh+B00h/2VAgEgY1JKQ=
+github.com/nspcc-dev/neo-go v0.104.0/go.mod h1:omsUK5PAtG2/nQ3/evs95QEg3wtkj3LH53e0NKtXVwQ=
+github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5 h1:09CpI5uwsxb1EeFPIKQRwwWlfCmDD/Dwwh01lPiQScM=
+github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5/go.mod h1:J/Mk6+nKeKSW4wygkZQFLQ6SkLOSGX5Ga0RuuuktEag=
+github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231121104256-0493ddbd70b2 h1:hPVF8iMmsQ15GSemj1ma6C9BkwfAugEXsUAVTEniK5M=
+github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231121104256-0493ddbd70b2/go.mod h1:J/Mk6+nKeKSW4wygkZQFLQ6SkLOSGX5Ga0RuuuktEag=

ZaCoin/config.json

@@ -0,0 +1 @@
+{"name":"ZaCoin","abi":{"methods":[{"name":"balanceOf","offset":583,"parameters":[{"name":"holder","type":"Hash160"}],"returntype":"Integer","safe":true},{"name":"decimals","offset":559,"parameters":[],"returntype":"Integer","safe":true},{"name":"isUsableAddress","offset":254,"parameters":[{"name":"addr","type":"ByteArray"}],"returntype":"Boolean","safe":false},{"name":"mint","offset":633,"parameters":[{"name":"to","type":"Hash160"}],"returntype":"Void","safe":false},{"name":"symbol","offset":554,"parameters":[],"returntype":"String","safe":true},{"name":"totalSupply","offset":564,"parameters":[],"returntype":"Integer","safe":true},{"name":"transfer","offset":606,"parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Boolean","safe":false}],"events":[{"name":"Transfer","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"}]}]},"features":{},"groups":[{"pubkey":"027171df30177d401c638fb2ddc14f9dbda323291e363ba4f7c3b19a8b44c8ba0a","signature":"2YQ2Jy/KZJlg9lQyguFyOpKfY4L2HYvwHkb6XkiALhVlPFVUKXvKMF5I2u9dnIFCLvI0W9h/D/46edTwPCpLjg=="}],"permissions":[{"contract":"*","methods":["onNEP17Payment"]}],"supportedstandards":["NEP-17"],"trusts":[],"extra":null}

ZaCoin/config.yml

@@ -0,0 +1,14 @@
+name: "ZaCoin"
+supportedstandards: ["NEP-17"]
+safemethods: ["balanceOf", "decimals", "symbol", "totalSupply"]
+events:
+  - name: Transfer
+    parameters:
+      - name: from
+        type: Hash160
+      - name: to
+        type: Hash160
+      - name: amount
+        type: Integer
+permissions:
+  - methods: ["onNEP17Payment"]

ZaCoin/go.mod

@@ -0,0 +1,5 @@
+module ZaCoin
+
+go 1.21.4
+
+require github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5

ZaCoin/go.sum

@@ -0,0 +1,2 @@
+github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5 h1:09CpI5uwsxb1EeFPIKQRwwWlfCmDD/Dwwh01lPiQScM=
+github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5/go.mod h1:J/Mk6+nKeKSW4wygkZQFLQ6SkLOSGX5Ga0RuuuktEag=

ZaCoin/token.go

@@ -0,0 +1,160 @@
+/*
+The implementation of the token logic has been copied "as is" from neo-go:
+https://github.com/nspcc-dev/neo-go/blob/7a1bf77585a37302ddfae78b2c88ed472f66cbcc/examples/token/nep17/nep17.go
+
+The code is subject to the following license:
+
+MIT License
+
+Copyright (c) 2018-2023 NeoSPCC (@nspcc-dev), Anthony De Meulemeester (@anthdm), City of Zion community (@CityOfZion)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+package ZaCoin
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/interop"
+	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
+	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
+	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+)
+
+// Token holds all token info
+type Token struct {
+	// Token name
+	Name string
+	// Ticker symbol
+	Symbol string
+	// Amount of decimals
+	Decimals int
+	// Token owner address
+	Owner []byte
+	// Total tokens * multiplier
+	TotalSupply int
+	// Storage key for circulation value
+	CirculationKey string
+}
+
+// getIntFromDB is a helper that checks for nil result of storage.Get and returns
+// zero as the default value.
+func getIntFromDB(ctx storage.Context, key []byte) int {
+	var res int
+	val := storage.Get(ctx, key)
+	if val != nil {
+		res = val.(int)
+	}
+	return res
+}
+
+// GetSupply gets the token totalSupply value from VM storage
+func (t Token) GetSupply(ctx storage.Context) int {
+	return getIntFromDB(ctx, []byte(t.CirculationKey))
+}
+
+// BalanceOf gets the token balance of a specific address
+func (t Token) BalanceOf(ctx storage.Context, holder []byte) int {
+	return getIntFromDB(ctx, holder)
+}
+
+// Transfer token from one user to another
+func (t Token) Transfer(ctx storage.Context, from, to interop.Hash160, amount int, data any) bool {
+	amountFrom := t.CanTransfer(ctx, from, to, amount)
+	if amountFrom == -1 {
+		return false
+	}
+
+	if amountFrom == 0 {
+		storage.Delete(ctx, from)
+	}
+
+	if amountFrom > 0 {
+		diff := amountFrom - amount
+		storage.Put(ctx, from, diff)
+	}
+
+	amountTo := getIntFromDB(ctx, to)
+	totalAmountTo := amountTo + amount
+	if totalAmountTo != 0 {
+		storage.Put(ctx, to, totalAmountTo)
+	}
+
+	runtime.Notify("Transfer", from, to, amount)
+	if to != nil && management.GetContract(to) != nil {
+		contract.Call(to, "onNEP17Payment", contract.All, from, amount, data)
+	}
+	return true
+}
+
+// CanTransfer returns the amount it can transfer
+func (t Token) CanTransfer(ctx storage.Context, from []byte, to []byte, amount int) int {
+	if len(to) != 20 || !IsUsableAddress(from) {
+		return -1
+	}
+
+	amountFrom := getIntFromDB(ctx, from)
+	if amountFrom < amount {
+		return -1
+	}
+
+	// Tell Transfer the result is equal - special case since it uses Delete
+	if amountFrom == amount {
+		return 0
+	}
+
+	// return amountFrom value back to Transfer, reduces extra Get
+	return amountFrom
+}
+
+// IsUsableAddress checks if the sender is either the correct Neo address or SC address
+func IsUsableAddress(addr []byte) bool {
+	if len(addr) == 20 {
+
+		if runtime.CheckWitness(addr) {
+			return true
+		}
+
+		// Check if a smart contract is calling scripthash
+		callingScriptHash := runtime.GetCallingScriptHash()
+		if callingScriptHash.Equals(addr) {
+			return true
+		}
+	}
+
+	return false
+}
+
+// Mint initial supply of tokens
+func (t Token) Mint(ctx storage.Context, to interop.Hash160) bool {
+	if !IsUsableAddress(t.Owner) {
+		return false
+	}
+	minted := storage.Get(ctx, []byte("minted"))
+	if minted != nil && minted.(bool) == true {
+		return false
+	}
+
+	storage.Put(ctx, to, t.TotalSupply)
+	storage.Put(ctx, []byte("minted"), true)
+	storage.Put(ctx, []byte(t.CirculationKey), t.TotalSupply)
+	var from interop.Hash160
+	runtime.Notify("Transfer", from, to, t.TotalSupply)
+	return true
+}

ZaCoin/zacoin_contract.go

@@ -0,0 +1,58 @@
+package ZaCoin
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/interop"
+	"github.com/nspcc-dev/neo-go/pkg/interop/lib/address"
+	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+)
+
+func getToken() Token {
+	// Owner of the wallet is wallets/game-wallet.json нету еще
+	owner := address.ToHash160("NXbLSnHA8dNuMUPUSNNivx7XFucN1w5bRq")
+	token := Token{
+		Name:           "ZaCoin",
+		Symbol:         "ZC",
+		Decimals:       0,
+		Owner:          owner,
+		TotalSupply:    1000000,
+		CirculationKey: "TokenCirculation",
+	}
+	return token
+}
+
+// Symbol returns the token symbol.
+func Symbol() string {
+	return getToken().Symbol
+}
+
+// Decimals returns the number of digits after decimal point.
+func Decimals() int {
+	return getToken().Decimals
+}
+
+// TotalSupply returns the total amount of tokens.
+func TotalSupply() int {
+	ctx := storage.GetReadOnlyContext()
+	return getToken().GetSupply(ctx)
+}
+
+// BalanceOf returns the amount of tokens owned by the specified address.
+func BalanceOf(holder interop.Hash160) int {
+	ctx := storage.GetReadOnlyContext()
+	return getToken().BalanceOf(ctx, holder)
+}
+
+// Transfer moves token from one address to another.
+func Transfer(from interop.Hash160, to interop.Hash160, amount int, data any) bool {
+	ctx := storage.GetContext()
+	return getToken().Transfer(ctx, from, to, amount, data)
+}
+
+// Mint generates initial supply of tokens.
+func Mint(to interop.Hash160) {
+	ctx := storage.GetContext()
+	minted := getToken().Mint(ctx, to)
+	if !minted {
+		panic("failed to mint initial supply")
+	}
+}

wallets/game-wallet.json

@@ -0,0 +1 @@
+{"version":"1.0","accounts":[{"address":"NXbLSnHA8dNuMUPUSNNivx7XFucN1w5bRq","key":"6PYRRKFgimr5vtwYQYd9fKjEQPZtkP66tWJzswxmDGwXyU1qUhvXcNbBJY","label":"frida","contract":{"script":"DCECcXHfMBd9QBxjj7LdwU+dvaMjKR42O6T3w7Gai0TIugpBVuezJw==","parameters":[{"name":"parameter0","type":"Signature"}],"deployed":false},"lock":false,"isDefault":false}],"scrypt":{"n":16384,"r":8,"p":8},"extra":{"Tokens":null}}