104 lines
3.1 KiB
Solidity
104 lines
3.1 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.13;
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import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
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import "@openzeppelin/contracts/access/Ownable.sol";
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struct Raider {
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uint16 level;
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}
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struct Army {
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Raider moloch_denier;
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Raider apprentice;
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Raider annointed;
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Raider champion;
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}
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struct Player {
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uint256 total_minted;
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uint256 created_at;
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uint256 last_raided_at;
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}
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contract Geld is ERC20, Ownable {
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uint8 constant DECIMALS = 4;
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uint256 public constant BUY_IN_AMOUNT = 0.0005 ether;
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uint256 public constant INITIAL_GELD = 50 * 10 ** DECIMALS;
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uint256 public constant RAID_WAIT = 15;
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uint256 public total_minted = 0;
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mapping(address => Player) private players;
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mapping(address => Army) private armies;
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// Modifier for functions that should only be available to registered players
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modifier onlyPlayer() {
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require(players[msg.sender].created_at != 0, "Not an initiated player");
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_;
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}
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constructor() ERC20("Geld", "GELD") Ownable(msg.sender) {}
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// This effectively registers the user
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function register() external payable {
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require(players[msg.sender].created_at == 0, "Whoops, player already exists :)");
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require(msg.value == BUY_IN_AMOUNT, "Incorrect buy in amount");
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// Mint some starting tokens to the player
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_mint(msg.sender, INITIAL_GELD);
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// Set initial states
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players[msg.sender] = Player({total_minted: INITIAL_GELD, created_at: block.timestamp, last_raided_at: 0});
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armies[msg.sender] = Army({
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moloch_denier: Raider({level: 0}),
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apprentice: Raider({level: 0}),
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annointed: Raider({level: 0}),
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champion: Raider({level: 0})
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});
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total_minted += INITIAL_GELD;
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}
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// Override for default number of decimals
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function decimals() public view virtual override returns (uint8) {
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return 4;
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}
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// Allows the owner to withdraw
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function withdraw() external onlyOwner {
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payable(owner()).transfer(address(this).balance);
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}
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// Manual minting for itchy fingers
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function raid() external onlyPlayer {
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require(block.timestamp >= players[msg.sender].last_raided_at + RAID_WAIT, "Tried minting too soon");
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// TODO: Make real calculation based on army
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uint256 new_geld = 50 * 10 ** decimals();
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_mint(msg.sender, new_geld);
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total_minted += new_geld;
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players[msg.sender].last_raided_at = block.timestamp;
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}
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// Function to get Player struct
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function getPlayer() public view onlyPlayer returns (Player memory) {
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return players[msg.sender];
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}
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// Function to get Army struct
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function getArmy() public view onlyPlayer returns (Army memory) {
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return armies[msg.sender];
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}
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receive() external payable {
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revert("No plain Ether accepted, use register() function to check in :)");
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}
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// Revert any non-function-call Ether transfers or calls to non-existent functions
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fallback() external payable {
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revert("No fallback calls accepted");
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}
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}
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