buy me a ceptor world adaptation

packages/hardhat/contracts/BuyMeACeptor.sol

@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.8.0 <0.9.0;
+
+/**
+ * @title World
+ * @dev World struct
+ */
+struct World {
+    string vibe;
+    string gameMasterName;
+    string gameMasterTwitterHandle;
+    string description;
+    uint256 time;
+    address gameMasterAddress;
+}
+
+/**
+ * @title BuyMeACeptorWorld
+ * @dev BuyMeACeptorWorld contract to accept donations and for our users to create a world for us
+ */
+contract BuyMeACeptor{
+    address payable public owner;
+    uint256 public price;
+    World[] public worlds;
+
+    error InsufficientFunds();
+    error InvalidArguments(string message);
+    error OnlyOwner();
+
+    event BuyMeACeptorWorldEvent(address indexed buyer, uint256 price);
+    event NewWorld(address indexed gameMasterAddress, uint256 time, string vibe, string gameMasterName, string gameMasterTwitterHandle, string description);
+
+    constructor() {
+        owner = payable(msg.sender);
+        price = 0.0001 ether;
+    }
+
+    /**
+     * WRITE FUNCTIONS *************
+     */
+
+    /**
+     * @dev Function to buy a world
+     * @param  gameMasterName The name of the game master
+     * @param  gameMasterTwitterHandle The Twitter handle of the game master
+     * @param  description The description of the world
+     * (Note: Using calldata for gas efficiency)
+     */
+    function buyWorld(string calldata vibe, string calldata gameMasterName, string calldata gameMasterTwitterHandle, string calldata description) public payable {
+        if (msg.value < price) {
+            revert InsufficientFunds();
+        }
+
+        emit BuyMeACeptorWorldEvent(msg.sender, msg.value);
+
+        if (bytes(gameMasterName).length == 0 && bytes(description).length == 0) {
+            revert InvalidArguments("Invalid gameMasterName or description");
+        }
+
+        worlds.push(World(vibe, gameMasterName, gameMasterTwitterHandle, description, block.timestamp, msg.sender));
+
+        emit NewWorld(msg.sender, block.timestamp, vibe, gameMasterName, gameMasterTwitterHandle, description);
+    }
+
+    /**
+     * @dev Function to remove a world
+     * @param  index The index of the world
+     */
+    function removeWorld(uint256 index) public {
+        if (index >= worlds.length) {
+            revert InvalidArguments("Invalid index");
+        }
+
+        World memory world = worlds[index];
+
+        // if operation isnt sent from the same game master or the owner, then not allowed
+        if (world.gameMasterAddress != msg.sender && msg.sender != owner) {
+            revert InvalidArguments("Operation not allowed");
+        }
+
+        World memory indexWorld = worlds[index];
+        worlds[index] = worlds[worlds.length - 1];
+        worlds[worlds.length - 1] = indexWorld;
+        worlds.pop();
+    }
+
+    /**
+     * @dev Function to modify a world description
+     * @param  index The index of the world
+     * @param  description The description of the world
+     */
+    function modifyWorldDescription(uint256 index, string memory description) public {
+        if (index >= worlds.length) {
+            revert InvalidArguments("Invalid index");
+        }
+
+        World memory world = worlds[index];
+
+        if (world.gameMasterAddress != msg.sender || msg.sender != owner) {
+            revert InvalidArguments("Operation not allowed");
+        }
+
+        worlds[index].description = description;
+    }
+
+    /**
+     * @dev Function to withdraw the balance
+     */
+    function withdrawTips() public {
+        if (msg.sender != owner) {
+            revert OnlyOwner();
+        }
+
+        if (address(this).balance == 0) {
+            revert InsufficientFunds();
+        }
+
+        (bool sent,) = owner.call{value: address(this).balance}("");
+        require(sent, "Failed to send Ether");
+    }
+
+    /**
+     * READ FUNCTIONS *************
+     */
+
+    /**
+     * @dev Function to get the worlds
+     */
+    function getWorlds() public view returns (World[] memory) {
+        return worlds;
+    }
+
+    /**
+     * @dev Recieve function to accept ether
+     */
+    receive() external payable {}
+}

packages/hardhat/contracts/CeptorCS.txt

@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.19;
+
+import "@openzeppelin/contracts/access/Ownable.sol";
+import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
+import "@chainlink/contracts/src/v0.8/vrf/VRFConsumerBaseV2.sol";
+
+contract CeptorCharacterSheets is ERC721URIStorage, VRFConsumerBaseV2, Ownable {
+    struct Stats {
+        uint8 strength;
+        uint8 dexterity;
+        uint8 constitution;
+        uint8 intelligence;
+        uint8 wisdom;
+        uint8 charisma;
+        uint8 luck;
+    }
+
+    struct Character {
+        Stats stats;
+        string name;
+        uint swapsLeft;
+    }
+
+    mapping(address => uint256) public ownerToTokenId;
+    mapping(uint256 => Character) public tokenIdToCharacter;
+
+    uint256 public tokenIdCounter;
+    bytes32 public keyHash;
+    uint256 public fee;
+    uint64 public subscriptionId;
+
+    event CharacterCreated(uint256 indexed tokenId, address owner);
+    event StatsSwapped(uint256 indexed tokenId, address owner);
+
+    constructor(
+        address vrfCoordinator,
+        address linkToken,
+        bytes32 _keyHash,
+        uint64 _subscriptionId
+    ) 
+        VRFConsumerBaseV2(vrfCoordinator)
+        ERC721("CeptorCharacterSheets", "CCS")
+    {
+        keyHash = _keyHash;
+        fee = 0.1 * 10**18; // Chainlink VRF fee
+        subscriptionId = _subscriptionId;
+        tokenIdCounter = 1;
+    }
+
+    function createCharacter(string memory name) external {
+        require(ownerToTokenId[msg.sender] == 0, "Owner already has a character");
+        uint256 tokenId = tokenIdCounter++;
+        ownerToTokenId[msg.sender] = tokenId;
+        tokenIdToCharacter[tokenId] = Character({
+            name: name,
+            stats: Stats(0, 0, 0, 0, 0, 0, 0),
+            swapsLeft: 3
+        });
+        _safeMint(msg.sender, tokenId);
+        emit CharacterCreated(tokenId, msg.sender);
+        requestStats(tokenId);
+    }
+
+    function requestStats(uint256 tokenId) internal {
+        require(LINK.balanceOf(address(this)) >= fee, "Not enough LINK");
+        requestRandomWords(keyHash, subscriptionId, 3, fee, 1);
+    }
+
+    function fulfillRandomWords(uint256, uint256[] memory randomWords) internal override {
+        uint256 tokenId = ownerToTokenId[msg.sender];
+        Character storage character = tokenIdToCharacter[tokenId];
+        character.stats.strength = uint8(randomWords[0] % 16 + 3);
+        character.stats.dexterity = uint8(randomWords[1] % 16 + 3);
+        character.stats.constitution = uint8(randomWords[2] % 16 + 3);
+        character.stats.intelligence = uint8(randomWords[3] % 16 + 3);
+        character.stats.wisdom = uint8(randomWords[4] % 16 + 3);
+        character.stats.charisma = uint8(randomWords[5] % 16 + 3);
+        character.stats.luck = uint8(randomWords[6] % 16 + 3);
+    }
+
+    function swapStats(uint256 tokenId) external {
+        require(ownerOf(tokenId) == msg.sender, "Not the owner");
+        Character storage character = tokenIdToCharacter[tokenId];
+        require(character.swapsLeft > 0, "No swaps left");
+        character.swapsLeft--;
+        requestStats(tokenId);
+        emit StatsSwapped(tokenId, msg.sender);
+    }
+}