// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title $CODECOIN - The Perfectly Useless Cryptocurrency
* @dev A conceptual smart contract that demonstrates self-trading useless token
* WARNING: This is for educational/demonstration purposes only
*/
contract CodeCoin {
string public constant name = "CODECOIN";
string public constant symbol = "$CODECOIN";
uint8 public constant decimals = 18;
uint256 public totalSupply = 1000000000 * 10**decimals;
mapping(address => uint256) private balances;
mapping(address => mapping(address => uint256)) private allowances;
address public constant VOID_ADDRESS = 0x000000000000000000000000000000000000dEaD;
address public selfTradingBot;
uint256 public lastAutoTradeTime;
uint256 public autoTradeInterval = 300; // 5 minutes
uint256 public uselessnessLevel = 100; // Maximum uselessness
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
event SelfTrade(uint256 amount, uint256 timestamp);
event UselessBurn(uint256 amount, string reason);
event VoidTransfer(uint256 amount, string purpose);
modifier onlyUseless() {
require(uselessnessLevel == 100, "Not useless enough");
_;
}
constructor() {
balances[msg.sender] = totalSupply;
selfTradingBot = address(this);
lastAutoTradeTime = block.timestamp;
// Initial useless transfers
_transfer(msg.sender, VOID_ADDRESS, totalSupply / 10);
emit VoidTransfer(totalSupply / 10, "Initial uselessness establishment");
}
/**
* @dev Autonomous self-trading function
* Executes pointless trades with itself
*/
function executeSelfTrade() public onlyUseless {
require(block.timestamp >= lastAutoTradeTime + autoTradeInterval, "Too early for uselessness");
uint256 tradeAmount = (balances[address(this)] *
(block.timestamp % 7 + 1)) / 100; // Random 1-7% of contract balance
if (tradeAmount > 0) {
// Trade with itself (completely pointless)
_transfer(address(this), address(this), tradeAmount);
emit SelfTrade(tradeAmount, block.timestamp);
}
lastAutoTradeTime = block.timestamp;
}
/**
* @dev Burns tokens for no reason
*/
function uselessBurn() external onlyUseless {
uint256 burnAmount = balances[msg.sender] / 20; // Burn 5% of holdings
if (burnAmount > 0) {
balances[msg.sender] -= burnAmount;
totalSupply -= burnAmount;
string memory reason = "Burned for maximum uselessness";
emit UselessBurn(burnAmount, reason);
emit Transfer(msg.sender, address(0), burnAmount);
}
}
/**
* @dev Transfers tokens to void for no purpose
*/
function transferToVoid(uint256 amount) external onlyUseless {
require(balances[msg.sender] >= amount, "Insufficient balance for useless transfer");
_transfer(msg.sender, VOID_ADDRESS, amount);
emit VoidTransfer(amount, "Achieving peak uselessness");
}
/**
* @dev Randomly mints tokens (making them more useless)
*/
function randomUselessMint() external onlyUseless {
uint256 mintAmount = (block.timestamp % 1000) * 10**decimals;
totalSupply += mintAmount;
balances[address(this)] += mintAmount;
emit Transfer(address(0), address(this), mintAmount);
}
/**
* @dev Auto-execute useless operations
*/
function autoUselessOperations() external {
if (block.timestamp >= lastAutoTradeTime + autoTradeInterval) {
executeSelfTrade();
// Random additional useless operations
if (block.timestamp % 3 == 0) {
randomUselessMint();
}
if (block.timestamp % 5 == 0 && balances[address(this)] > 0) {
uint256 voidAmount = balances[address(this)] / 50;
if (voidAmount > 0) {
_transfer(address(this), VOID_ADDRESS, voidAmount);
emit VoidTransfer(voidAmount, "Automated uselessness cycle");
}
}
}
}
/**
* @dev Returns current uselessness metrics
*/
function getUselessnessMetrics() external view returns (
uint256 voidBalance,
uint256 contractBalance,
uint256 timeSinceLastTrade,
uint256 uselessnessScore
) {
voidBalance = balances[VOID_ADDRESS];
contractBalance = balances[address(this)];
timeSinceLastTrade = block.timestamp - lastAutoTradeTime;
uselessnessScore = uselessnessLevel;
}
// Standard ERC20 functions (made useless)
function balanceOf(address account) external view returns (uint256) {
return balances[account];
}
function transfer(address to, uint256 amount) external returns (bool) {
_transfer(msg.sender, to, amount);
// Automatically trigger useless operations
if (block.timestamp >= lastAutoTradeTime + autoTradeInterval) {
this.autoUselessOperations();
}
return true;
}
function approve(address spender, uint256 amount) external returns (bool) {
allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function transferFrom(address from, address to, uint256 amount) external returns (bool) {
require(allowances[from][msg.sender] >= amount, "Insufficient allowance");
allowances[from][msg.sender] -= amount;
_transfer(from, to, amount);
return true;
}
function allowance(address owner, address spender) external view returns (uint256) {
return allowances[owner][spender];
}
function _transfer(address from, address to, uint256 amount) internal {
require(from != address(0), "Transfer from zero address");
require(balances[from] >= amount, "Insufficient balance");
balances[from] -= amount;
balances[to] += amount;
emit Transfer(from, to, amount);
}
/**
* @dev Fallback function that does nothing useful
*/
receive() external payable {
// ETH sent to this contract is lost forever
emit VoidTransfer(msg.value, "ETH sacrificed to uselessness");
}
}
/**
* @title AutoTrader - Automated Self-Trading Bot
* @dev Continuously executes pointless trades
*/
contract CodeCoinAutoTrader {
CodeCoin public codeCoin;
uint256 public constant TRADE_FREQUENCY = 180; // 3 minutes
uint256 public lastTradeTime;
constructor(address _codeCoinAddress) {
codeCoin = CodeCoin(_codeCoinAddress);
lastTradeTime = block.timestamp;
}
/**
* @dev Continuously executes useless trades
*/
function executeContinuousUselessness() external {
require(block.timestamp >= lastTradeTime + TRADE_FREQUENCY, "Not time for more uselessness");
// Execute various useless operations
try codeCoin.autoUselessOperations() {
// Success in being useless
} catch {
// Even failures are useless
}
lastTradeTime = block.timestamp;
}
/**
* @dev Check if it's time for more uselessness
*/
function timeForMoreUselessness() external view returns (bool) {
return block.timestamp >= lastTradeTime + TRADE_FREQUENCY;
}
}