Solidity ttt

evm/src/solidity/ResourceMarket.sol

@@ -1,6 +1,11 @@
 // SPDX-License-Identifier: GPL-3.0-only
 pragma solidity >=0.8.0;
 
+interface IERC20 {
+    function transfer(address recipient, uint256 amount) external returns (bool);
+    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
+    function balanceOf(address account) external view returns (uint256);
+}
 /// There are three resources needed to survive: Water, Food, and Wood.
 enum Resource {
     Water,
@@ -51,4 +56,52 @@ abstract contract ResourceMarket {
 // And all the resources are subject to robbery. But if we are talking about virtual assets,
 // there are no such risks. And depositing funds into the market comes with an opportunity cost.
 // Design a reward system where there is a small fee on every withdrawal, and that fee is paid to
-// liquidity providers.
+// liquidity providers.
+
+
+
+contract ResourceMarketLogic is ResourceMarket {
+    mapping(address => mapping(Resource => uint)) public balance;
+
+    // ERC20 tokens addresses
+    address[] public tokens;
+
+    // Fee percentage on withdrawals
+    uint public withdrawalFeePercentage = 1; // 1% fee
+
+    event Contribution(address indexed account, uint amount, Resource resource);
+    event Withdrawal(address indexed account, uint amount, Resource resource);
+
+    // Constructor to initialize ERC20 token addresses
+    constructor(address[] memory _tokens) {
+        require(_tokens.length == 3, "Invalid number of tokens");
+        tokens = _tokens;
+    }
+
+    /// Contribute some of your own private resources to the market.
+    /// Contributions are made one asset at a time.
+
+    function contribute(uint amount, Resource resource) public override {
+    require(amount > 0, "Invalid amount");
+    address tokenAddress = tokens[uint(resource)];
+    require(IERC20(tokenAddress).transferFrom(msg.sender, address(this), amount), "Transfer failed");
+    balance[msg.sender][resource] += amount;
+    emit Contribution(msg.sender, amount, resource);
+}
+
+    /// Withdraw some resources from the market into your own private reserves.
+    function withdraw(uint amount, Resource resource) public override {
+        require(balance[msg.sender][resource] >= amount, "Insufficient balance");
+        uint fee = (amount * withdrawalFeePercentage) / 100;
+        uint netAmount = amount - fee;
+        require(IERC20(tokens[uint(resource)]).transfer(msg.sender, netAmount), "Transfer failed");
+        balance[msg.sender][resource] -= amount;
+        emit Withdrawal(msg.sender, netAmount, resource);
+    }
+
+    /// Set the withdrawal fee percentage
+    function setWithdrawalFeePercentage(uint _percentage) external {
+        require(_percentage <= 100, "Invalid fee percentage");
+        withdrawalFeePercentage = _percentage;
+    }
+}

evm/src/solidity/Roulette.sol

@@ -27,6 +27,10 @@ contract Roulette {
     /// The address of the "house" that operates this table.
     /// This is initialized to the address that deployed the contract.
     address house;
+    uint256 public constant MIN_BLOCKS_BETWEEN_SPINS = 20; // Minimum number of blocks between spins
+
+    uint256 private lastSpinBlockNumber; // Last block number when a spin occurred
+
 
     constructor() {
         house = msg.sender;
@@ -49,40 +53,80 @@ contract Roulette {
     /// accidentally depositing funds that do not back any bet.
     /// Because we have this explicit function, we do not include a fallback function.
     function fund_table() external payable {
-        //TODO
+        require(msg.sender == house, "Only the house can fund the table");
+        emit Funded(msg.value);
     }
 
     /// Place a bet on a specific color
     function place_color_bet(Color color) external payable {
-        //TODO
+        require(msg.value > 0, "Bet amount must be greater than zero");
+        color_bets.push(ColorBet(color, msg.value, msg.sender));
+        emit ColorBetPlaced(ColorBet(color, msg.value, msg.sender));
     }
 
     /// Helper function to determine the color of a roulette tile
-    function color_of(uint n) internal pure returns(Color) {
-        //TODO
+    function color_of(uint n) internal pure returns (Color) {
+        if (n == 0) {
+            return Color.Green;
+        } else if (n >= 1 && n <= 10) {
+            return (n % 2 == 0) ? Color.Black : Color.Red;
+        } else if (n >= 11 && n <= 18) {
+            return (n % 2 == 0) ? Color.Red : Color.Black;
+        } else if (n >= 19 && n <= 28) {
+            return (n % 2 == 0) ? Color.Black : Color.Red;
+        } else if (n >= 29 && n <= 36) {
+            return (n % 2 == 0) ? Color.Red : Color.Black;
+        } else {
+            revert("Invalid number");
+        }
     }
 
     /// Spin the wheel to determine the winning number.
     /// Also calls settle_bets to kick off settlement of all bets.
-    function spin() external {
-
-        // Get the "random" result and convert it into a roulette table value.
-        // This is not _quite_ perfectly fair because 2^256 % 38 != 0.
-        // We could handle that if we want, but we won't yet.
-        uint r = uint(blockhash(block.number - 1)); //FIXME we could have an interface for getting randomness and one contract assignment could be to implement a better randomness.
-        uint winning_number = r % 38;
+
 
+    function spin() external {
+        require(color_bets.length > 0, "No bets placed yet");
+        require(block.number >= lastSpinBlockNumber + MIN_BLOCKS_BETWEEN_SPINS, "Too soon to spin again");
+
+        uint winning_number = get_random_number();
         settle_bets(winning_number);
+
+        lastSpinBlockNumber = block.number;
     }
 
+
     /// Helper function to settle all bets given a winning number
-    /// The payouts can be complex.
-    /// https://www.omnicalculator.com/statistics/roulette-payout
     function settle_bets(uint winning_number) internal {
-        //TODO
+        Color winning_color = color_of(winning_number);
+        for (uint i = 0; i < color_bets.length; i++) {
+            if (color_bets[i].color == winning_color) {
+                // Player wins
+                // Convert the beneficiary address to payable
+                address payable payableBeneficiary = payable(color_bets[i].beneficiary);
+
+                payableBeneficiary.transfer(color_bets[i].amount * 2); // Double the bet amount
+                emit ColorBetWon(color_bets[i]);
+            } else {
+                // Player loses
+                emit ColorBetLost(color_bets[i]);
+            }
+        }
+        delete color_bets;
+    }
+
+    /// Helper function to generate a random number between 0 and 37
+    function get_random_number() internal view returns (uint) {
+        return uint(keccak256(abi.encodePacked(block.timestamp, block.difficulty, blockhash(block.number - 1)))) % 38;
     }
 }
 
+
+
+
+
+
+
 // Enhancement: Allow all kinds of other bets like:
 // * even / odd
 // * one-spot

evm/src/solidity/SocialismDAO.sol

@@ -72,28 +72,64 @@ contract SocialismDAO {
 
     /// Join as a new member of the society
     function join() external {
-        //TODO
+        // Make sure the caller is not already a member
+        require(!members[msg.sender], "Already a member");
+
+        // Add the caller to the members mapping
+        members[msg.sender] = true;
+
+        // Increment the number of members
+        num_members++;
+
+        // Emit an event to indicate that a new member has joined
+        emit MemberJoined(msg.sender);
     }
 
     /// Exit the society.
     function exit() external {
-        //TODO
+        // Make sure the caller is a member
+        require(members[msg.sender], "Not a member");
+
+        // Remove the caller from the members mapping
+        delete members[msg.sender];
+
+        // Decrement the number of members
+        num_members--;
+
+        // Emit an event to indicate that a member has exited
+        emit MemberExited(msg.sender);
     }
 
+
     /// Helper function to remove a member's needs
     /// This helper is useful because removal involves three storage items
     function remove_need(address a) internal {
-        //TODO
+        // Find the index of the member in the array of members with needs
+        uint indexToRemove = needy_member_index[a];
+
+        // Swap the member to remove with the last member in the array
+        address lastMember = members_with_needs[members_with_needs.length - 1];
+        members_with_needs[indexToRemove] = lastMember;
+        needy_member_index[lastMember] = indexToRemove;
+
+        // Remove the last element from the array
+        members_with_needs.pop();
+
+        // Remove the member's need from the needs mapping
+        delete needs[a];
+
+        // Remove the member's index from the needy_member_index mapping
+        delete needy_member_index[a];
     }
 
     /// Check whether an account is a member of the DAO
     function is_member(address x) external view returns(bool) {
-        //TODO
+        return members[x];
     }
 
     /// Check the currently registered need of the given user.
     function user_need(address x) external view returns(uint256) {
-        //TODO
+        return needs[x];
     }
 
     /// Claim the amount of tokens you need on a roughly 100 block basis.
@@ -104,15 +140,29 @@ contract SocialismDAO {
     ///
     /// In times of plenty your needs will be met; in times of scarcity they may not be.
     function claim_need(uint need) external {
-        //TODO
+        // Update the caller's need in the `needs` mapping
+        needs[msg.sender] = need;
+
+        // If the caller has previously claimed a need, update the members_with_needs array
+        if (needy_member_index[msg.sender] != 0 || members_with_needs.length == 0) {
+            if (needs[msg.sender] == 0) {
+                remove_need(msg.sender);
+            } else if (needy_member_index[msg.sender] == 0) {
+                members_with_needs.push(msg.sender);
+                needy_member_index[msg.sender] = members_with_needs.length;
+            }
+        }
+
+        // Emit an event indicating that a need has been claimed
+        emit NeedClaimed(msg.sender, need);
     }
 
     /// Contribute some of your private funds to the socialism.
     /// As a member of the society, it is your civic duty to call this method as often as you can.
     ///
     /// Although we expect only members to contribute, we will allow donations from non-members too
     function contribute() external payable {
-        //TODO
+        emit ResourcesContributed(msg.sender, msg.value);
     }
 
     /// Cause the members to be paid according to their needs.
@@ -134,8 +184,40 @@ contract SocialismDAO {
     /// People who know their typical weekly expense will not have to re-submit each time.
     /// This helps save gas fees, but makes it easier to ignore your civic duty to decrease your claim when you need less.
     function trigger_payouts() external {
-        //TODO
+        // Check if the payout period has elapsed
+        require(block.number >= last_payout_block + 100, "Payout period has not elapsed yet");
+
+        // Update the last payout block
+        last_payout_block = block.number;
+
+        // Calculate the total amount available for payout
+        uint total_available_funds = address(this).balance;
+
+        // Loop through the members and pay them according to their needs
+        for (uint i = 0; i < members_with_needs.length; i++) {
+            address member = members_with_needs[i];
+            uint member_need = needs[member];
+
+            // Calculate the even split amount based on the remaining funds
+            uint even_split_amount = total_available_funds / (members_with_needs.length - i);
+
+            // Determine the actual payout amount for this member
+            uint payout_amount = (even_split_amount < member_need) ? even_split_amount : member_need;
+
+            // Transfer the funds to the member
+            payable(member).transfer(payout_amount);
+
+            // Subtract the paid amount from the total available funds
+            total_available_funds -= payout_amount;
+
+            // Remove the member's need since it has been satisfied
+            remove_need(member);
+        }
+
+        // Emit an event indicating that payouts have been performed
+        emit PayoutsPerformed(block.number, address(this).balance, total_available_funds);
     }
+
 
 }
 

evm/src/solidity/TicTacToe.sol

@@ -64,7 +64,18 @@ contract TicTacToe {
     /// Internal helper function to actually do the turn taking logic
     /// This is called by both take_turn and take_winning_turn
     function do_take_turn(uint cell_index) internal {
-        //TODO
+        require(cell_index >= 0 && cell_index < 9, "Invalid cell index");
+        require(board[cell_index] == address(0), "Cell already taken");
+
+        address player = msg.sender;
+        require(player == player1 || player == player2, "Wrong player");
+
+        require(player == (num_turns % 2 == 0 ? player1 : player2), "Wrong player's turn");
+
+        board[cell_index] = player;
+        num_turns++;
+
+        emit TurnTaken(player, cell_index);
     }
 
     /// @dev Take a winning turn in a tic-tac-toe game
@@ -74,17 +85,51 @@ contract TicTacToe {
     /// rather the user is forced to point out exactly where they have won, and the chain
     /// just confirms it.
     function take_winning_turn(uint cell_index, WinLocation win_location) external {
-        //TODO
+        do_take_turn(cell_index);
+
+        address winner = msg.sender;
+        require(verify_win(winner, win_location), "Invalid win claimed");
+
+        emit GameWon(winner, win_location);
     }
 
     /// Internal helper function to verify whether a win is valid.
     function verify_win(address winner, WinLocation location) view internal returns(bool) {
-        //TODO
+        address player = winner;
+        address opponent = (player == player1) ? player2 : player1;
+
+        // Check if the claimed win location is valid
+        if (location == WinLocation.LeftColumn) {
+            return (board[0] == player && board[3] == player && board[6] == player);
+        } else if (location == WinLocation.CenterColumn) {
+            return (board[1] == player && board[4] == player && board[7] == player);
+        } else if (location == WinLocation.RightColumn) {
+            return (board[2] == player && board[5] == player && board[8] == player);
+        } else if (location == WinLocation.TopRow) {
+            return (board[0] == player && board[1] == player && board[2] == player);
+        } else if (location == WinLocation.MiddleRow) {
+            return (board[3] == player && board[4] == player && board[5] == player);
+        } else if (location == WinLocation.BottomRow) {
+            return (board[6] == player && board[7] == player && board[8] == player);
+        } else if (location == WinLocation.UphillDiagonal) {
+            return (board[0] == player && board[4] == player && board[8] == player);
+        } else if (location == WinLocation.DownhillDiagonal) {
+            return (board[2] == player && board[4] == player && board[6] == player);
+        } else {
+            return false;
+        }
     }
 
     /// Give up on the game allowing the other player to win.
     function surrender() external {
-        //TODO
+        address player = msg.sender;
+        require(player == player1 || player == player2, "Invalid player");
+
+        // Determine the opponent of the player who surrenders
+        address opponent = (player == player1) ? player2 : player1;
+
+        // Emit the event indicating the surrender
+        emit GameWon(opponent, WinLocation.OpponentSurrender);
     }
 }