不管是现在还是可遇见的未来，完全在一个单体区块链上运行游戏在经济上是不可行的。这就是为什么过去几年发布的大多数区块链游戏都是混合型的，这些游戏只有少数组件在链上部署运行的，而其核心游戏逻辑则在链下专有服务器上运行。我们将这类区块链游戏称为弱上链游戏（weakly on-chain games）。
NFT游戏并不等同于躺在钱包中的加密货币收藏品。NFT游戏的规则、机制和玩家交互都会用到NFT。例如，The game can display the player's unique character or avatar as NFT. Digital items found during the game may also be NFT. You can exchange or trade NFT with other players to profit from it. The relatively new "earn while playing" mode also allows users to make profits through NFT games. We will discuss this topic in detail later.
parameter_types! {
pub const AlarmInterval: BlockNumber = 1;
pub const SubmissionDeposit: Balance = 100 * DOLLARS;
pub const UndecidingTimeout: BlockNumber = 28 * DAYS;}
pub struct TracksInfo;
impl pallet_referenda::TracksInfo<Balance, BlockNumber> for TracksInfo {
type Id = u16;
type Origin = <Origin as frame_support::traits::OriginTrait>::PalletsOrigin;
fn tracks() -> &'static [(Self::Id, pallet_referenda::TrackInfo<Balance, BlockNumber>)] {
static DATA: [(u16, pallet_referenda::TrackInfo<Balance, BlockNumber>); 1] = [(
0u16,
pallet_referenda::TrackInfo {
name: "root",
max_deciding: 1,
decision_deposit: 10,
prepare_period: 4,
decision_period: 4,
confirm_period: 2,
min_enactment_period: 4,
min_approval: pallet_referenda::Curve::LinearDecreasing {
length: Perbill::from_percent(100),
floor: Perbill::from_percent(50),
ceil: Perbill::from_percent(100),
},
min_support: pallet_referenda::Curve::LinearDecreasing {
length: Perbill::from_percent(100),
floor: Perbill::from_percent(0),
ceil: Perbill::from_percent(100),
},
},
)];
&DATA[..]
}
fn track_for(id: &Self::Origin) -> Result<Self::Id, ()> {
if let Ok(system_origin) = frame_system::RawOrigin::try_from(id.clone()) {
match system_origin {
frame_system::RawOrigin::Root => Ok(0),
_ => Err(()),
}
} else {
Err(())
}
}}
impl pallet_referenda::Config for Runtime {
type WeightInfo = pallet_referenda::weights::SubstrateWeight<Self>;
type Call = Call;
type Event = Event;
type Scheduler = Scheduler;
type Currency = pallet_balances::Pallet<Self>;
type SubmitOrigin = EnsureSigned<AccountId>;
type CancelOrigin = EnsureRoot<AccountId>;
type KillOrigin = EnsureRoot<AccountId>;
type Slash = ();
type Votes = pallet_conviction_voting::VotesOf<Runtime>;
type Tally = pallet_conviction_voting::TallyOf<Runtime>;
type SubmissionDeposit = SubmissionDeposit;
type MaxQueued = ConstU32<100>;
type UndecidingTimeout = UndecidingTimeout;
type AlarmInterval = AlarmInterval;
type Tracks = TracksInfo;}
impl pallet_referenda::Config<pallet_referenda::Instance2> for Runtime {
type WeightInfo = pallet_referenda::weights::SubstrateWeight<Self>;
type Call = Call;
type Event = Event;
type Scheduler = Scheduler;
type Currency = pallet_balances::Pallet<Self>;
type SubmitOrigin = EnsureSigned<AccountId>;
type CancelOrigin = EnsureRoot<AccountId>;
type KillOrigin = EnsureRoot<AccountId>;
type Slash = ();
type Votes = pallet_ranked_collective::Votes;
type Tally = pallet_ranked_collective::TallyOf<Runtime>;
type SubmissionDeposit = SubmissionDeposit;
type MaxQueued = ConstU32<100>;
type UndecidingTimeout = UndecidingTimeout;
type AlarmInterval = AlarmInterval;
type Tracks = TracksInfo;}
impl pallet_ranked_collective::Config for Runtime {
type WeightInfo = pallet_ranked_collective::weights::SubstrateWeight<Self>;
type Event = Event;
type PromoteOrigin = EnsureRootWithSuccess<AccountId, ConstU16<65535>>;
type DemoteOrigin = EnsureRootWithSuccess<AccountId, ConstU16<65535>>;
type Polls = RankedPolls;
type MinRankOfClass = traits::Identity;
type VoteWeight = pallet_ranked_collective::Geometric;}
impl pallet_remark::Config for Runtime {
type WeightInfo = pallet_remark::weights::SubstrateWeight<Self>;
type Event = Event;}
parameter_types! {
pub const LaunchPeriod: BlockNumber = 28 * 24 * 60 * MINUTES;
pub const VotingPeriod: BlockNumber = 28 * 24 * 60 * MINUTES;
pub const FastTrackVotingPeriod: BlockNumber = 3 * 24 * 60 * MINUTES;
pub const MinimumDeposit: Balance = 100 * DOLLARS;
pub const EnactmentPeriod: BlockNumber = 30 * 24 * 60 * MINUTES;
pub const CooloffPeriod: BlockNumber = 28 * 24 * 60 * MINUTES;
pub const MaxProposals: u32 = 100;}
impl pallet_democracy::Config for Runtime {
type Proposal = Call;
type Event = Event;
type Currency = Balances;
type EnactmentPeriod = EnactmentPeriod;
type LaunchPeriod = LaunchPeriod;
type VotingPeriod = VotingPeriod;
type VoteLockingPeriod = EnactmentPeriod; // Same as EnactmentPeriod
type MinimumDeposit = MinimumDeposit;
/// A straight majority of the council can decide what their next motion is.
type ExternalOrigin =
pallet_collective::EnsureProportionAtLeast<AccountId, CouncilCollective, 1, 2>;
/// A super-majority can have the next scheduled referendum be a straight majority-carries vote.
type ExternalMajorityOrigin =
pallet_collective::EnsureProportionAtLeast<AccountId, CouncilCollective, 3, 4>;
/// A unanimous council can have the next scheduled referendum be a straight default-carries
/// (NTB) vote.
type ExternalDefaultOrigin =
pallet_collective::EnsureProportionAtLeast<AccountId, CouncilCollective, 1, 1>;
/// Two thirds of the technical committee can have an ExternalMajority/ExternalDefault vote
/// be tabled immediately and with a shorter voting/enactment period.
type FastTrackOrigin =
pallet_collective::EnsureProportionAtLeast<AccountId, TechnicalCollective, 2, 3>;
type InstantOrigin =
pallet_collective::EnsureProportionAtLeast<AccountId, TechnicalCollective, 1, 1>;
type InstantAllowed = frame_support::traits::ConstBool<true>;
type FastTrackVotingPeriod = FastTrackVotingPeriod;
// To cancel a proposal which has been passed, 2/3 of the council must agree to it.
type CancellationOrigin =
pallet_collective::EnsureProportionAtLeast<AccountId, CouncilCollective, 2, 3>;
// To cancel a proposal before it has been passed, the technical committee must be unanimous or
// Root must agree.
type CancelProposalOrigin = EitherOfDiverse<
EnsureRoot<AccountId>,
pallet_collective::EnsureProportionAtLeast<AccountId, TechnicalCollective, 1, 1>,
>;
type BlacklistOrigin = EnsureRoot<AccountId>;
// Any single technical committee member may veto a coming council proposal, however they can
// only do it once and it lasts only for the cool-off period.
type VetoOrigin = pallet_collective::EnsureMember<AccountId, TechnicalCollective>;
type CooloffPeriod = CooloffPeriod;
type PreimageByteDeposit = PreimageByteDeposit;
type OperationalPreimageOrigin = pallet_collective::EnsureMember<AccountId, CouncilCollective>;
type Slash = Treasury;
type Scheduler = Scheduler;
type PalletsOrigin = OriginCaller;
type MaxVotes = ConstU32<100>;
type WeightInfo = pallet_democracy::weights::SubstrateWeight<Runtime>;
type MaxProposals = MaxProposals;}
