GrasslandWar

Link to Chinese README

Demo Page

In this contract, players can deposit ETH and choose to join either the Sheep Pool or the Wolf Pool. When joining, ETH will be transferred to Compound to earn interest, and at the end of each game, the dominant species will receive interest earnings. The detailed gameplay is as follows:

Framework

Gameplay

• Players choose to join either the Sheep Pool or the Wolf Pool and deposit ETH.
• The deposited ETH will be used in Compound to earn interest.
• In both pools, the pool with the higher amount will become the dominant pool. The Wolf Pool has a 3x weight advantage in the calculation.
• The game duration is 7 days. If the dominant pool doesn't change within 7 days, the dominant species wins. If the dominant pool changes within 7 * days, the countdown restarts.
• If the result is in favor of the Sheep Pool, all Sheep participants will share the interest. The interest distribution will be weighted based on the amount invested, and Wolves will forfeit the interest.
• If the result is in favor of the Wolf Pool, the participant with the highest deposit amount will receive all the interest.
• If, at the end of the game, the number of addresses in the Wolf Pool is 0, the protocol wins.
• If, at the end of the game, the number of addresses in the Wolf Pool is 1, the Wolf will directly win.
• The protocol will receive 2% of the revenue from each game result.
• The second game will start immediately after the first game ends, and so on...

FeatureList

The operations performed by the user include joining the Sheep Pool, leaving the Sheep Pool, joining the Wolf Pool, leaving the Wolf Pool, and claiming rewards. The following are the corresponding functions for the mentioned features:

Feature	Function
Join Sheep Pool	joinSheepPool
Leave Sheep Pool	joinWolfPool
Join Wolf Pool	leaveSheepPool
Leave Wolf Pool	leaveWolfPool
Claim Reward	claim

Other query functions are as follows:

Feature	Function
Get End Time of the Current Round	getEndTime
Get Current Winner	getWinner
Get Sheep Count	getSheep
Get Wolves Count	getWolves
Get Total Sheep Pool Balance	getSheepPoolBalance
Get Total Wolf Pool Balance	getWolfPoolBalance
Get User's Investment in Sheep Pool	getSheepBalance
Get User's Investment in Wolf Pool	getWolfBalance
Get User's Accumulated Rewards	getReward
Get Total cETH Balance of the Contract	getCTokenBalance

Flowchart

Development

The contract and testing of this game are conducted on the main network. If you wish to perform testing on the GOERLI test network, the following adjustments need to be made:

1. ./grassland-war/src/GrasslandWar.sol

• MAINNET

    constructor() payable {
        comptroller = Comptroller(0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B);
        cEther = CEther(payable(0x4Ddc2D193948926D02f9B1fE9e1daa0718270ED5));
        owner = msg.sender;
    }

• GOERLI

    constructor() payable {
        comptroller = Comptroller(0x627EA49279FD0dE89186A58b8758aD02B6Be2867);
        cEther = CEther(payable(0x20572e4c090f15667cF7378e16FaD2eA0e2f3EfF));
        owner = msg.sender;
    }

2. ./grassland-war/test/GrasslandWar.t

• blocknum、vm.roll

• MAINNET

    string memory rpc = vm.envString("MAINNET_RPC_URL");

• GOERLI

    string memory rpc = vm.envString("GOERLI_RPC_URL");