68 lines
1.8 KiB
Go
68 lines
1.8 KiB
Go
package ZaCoinRefill
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import (
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"github.com/nspcc-dev/neo-go/pkg/interop"
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"github.com/nspcc-dev/neo-go/pkg/interop/contract"
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"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
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"github.com/nspcc-dev/neo-go/pkg/interop/storage"
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)
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const (
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zaCoinHashKey = "zaCoinHash"
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minZaCoin = 5
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zaCoinForTransfer = 50
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)
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func _deploy(data interface{}, isUpdate bool) {
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if isUpdate {
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return
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}
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args := data.(struct {
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zaCoinHash interop.Hash160
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})
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if len(args.zaCoinHash) != interop.Hash160Len {
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panic("Invalid hash of zaCoin contract")
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}
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ctx := storage.GetContext()
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storage.Put(ctx, zaCoinHashKey, args.zaCoinHash)
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}
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func GetZaCoin() {
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ctx := storage.GetContext()
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playerOwner := runtime.GetScriptContainer().Sender
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zaCoinHash := storage.Get(ctx, zaCoinHashKey).(interop.Hash160)
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playerBalance := contract.Call(zaCoinHash, "balanceOf", contract.ReadStates, playerOwner).(int)
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if playerBalance < minZaCoin {
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changePlayerBalance(ctx, playerOwner, zaCoinForTransfer)
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}
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playerBalance = contract.Call(zaCoinHash, "balanceOf", contract.ReadStates, playerOwner).(int)
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runtime.Notify("playerBalance", playerBalance)
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}
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func OnNEP17Payment(from interop.Hash160, amount int, data any) {
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ctx := storage.GetContext()
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zaCoinHash := storage.Get(ctx, zaCoinHashKey).(interop.Hash160)
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callingHash := runtime.GetCallingScriptHash()
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if !callingHash.Equals(zaCoinHash) {
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panic("only ZC is accepted")
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}
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}
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func changePlayerBalance(ctx storage.Context, playerOwner interop.Hash160, transferAmount int) {
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zaCoinHash := storage.Get(ctx, zaCoinHashKey).(interop.Hash160)
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playerContract := runtime.GetExecutingScriptHash()
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transferred := contract.Call(zaCoinHash, "transfer", contract.All, playerContract, playerOwner, transferAmount, nil).(bool)
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if !transferred {
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panic("failed to transfer zaCoins")
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}
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}
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