Solidity
Diamond Pattern
Diamond standard is similar to upgradeable smart contracts, such as the proxy pattern, but with the benefit that you can control many implementation contracts (i.e., logic contracts) from your single Diamond contract (i.e., proxy contract).
Some key features of the Diamond standard include:
A single gateway to make proxy calls to n number of implementation contracts
Upgrade a single or multiple smart contract atomically
No storage limit to how many implementation contracts you can add to your Diamond
Verified on etherscan diamond contract will show interface for only main top facet.
Smart contracts
*** Diamond pattern used
*** DemRebel Contract
Main playable character access ERC721 NFT
*** DemNft Contract
The NFT contract is designed for demGrower and demToddler mintable ERC721s for price in $GD
*** Game Contract
Core game logic contract. Contains logic for Farms, Raids, Cash-Out, etc. Chainlink VRF oracle is used for random results generation.
$GD Token Contract
Main game token, openzeppelin ERC1363
Safe Contract
Utility contract for Farm points storage
For deployment and testing, we are using a Hardhat environment.
Contracts are deployed to Blast Sepolia Net:
$GD token
0xE0247bDdf59634b14d9DD4BA5A63F6bFa5184500
DemRebel Diamond
0x09F9105D0b5517c3413dD9a4Eca9CE0c6cf5dC6B
Game Diamond
0x47eB5b58A09D0E8cABffEdfC2A685d2DC8D60c5E
Toddler Diamond
0xb9A85D8047624Fc0CC4C973beD40382D01B96B23
Grower Diamond
0x64b0Fb9c2dFaeEEc93C995D82a14ded9c02090fe
Safe
0xe822ddCf0B25264a4743f4786697f167dDe3Df7e
The Farm
Raid logic
Raid mechanics
Raid is a Game mechanic for Farms that allows the transition of Harvest points from one player to another.
The player launches a ‘scout' mission to find the farm for 'raid'
Then the player should make a decision: Raid the scouted Farm or not
Toddler NFTs are used for Raiding
If the Raid was successful, part of the harvest points will be transferred to the attacker's Safe
There is a timed cooldown until the next Raid
In the final stage, the player should return his toddlers from the Raid
Blast Net related
Blast users and smart contracts can earn ~4% from beacon chain staking yield.
The game contract is configured to automatically receive ETH yield via rebasing.
Upon starting, the Farm user should supply some ETH, which would be used to grow yield. If there is a need to withdraw staked ETH, the Farm contract for this user will be reset.
L1 to L2 bridge
We've developed a Bridge code for NFT transfers from L1 <--> L2. Currently not in scope for GUTDEM project.
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