Address Contract Partially Verified
Address
0x7A68033F4480d0272618f2dF998A5fc54Bd02C46
Balance
0.005050 ETH
Nonce
1
Code Size
13035 bytes
Creator
0x3C29ba2b...D43c at tx 0x58daef8c...11cc23
Indexed Transactions
0
Contract Bytecode
13035 bytes
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Verified Source Code Partial Match
Compiler: v0.8.26+commit.8a97fa7a
EVM: cancun
Optimization: No
TimingFox.sol 530 lines
/**
*Submitted for verification at Etherscan.io on 2024-12-10
*/
/**
*Submitted for verification at Etherscan.io on 2024-11-05
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
library SafeMath {
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
library StringUtils {
function toString(bytes32 data) internal pure returns (string memory) {
bytes memory bytesString = new bytes(64);
for (uint256 i = 0; i < 32; i++) {
bytesString[i * 2] = _char(bytes1(uint8(data[i]) >> 4));
bytesString[1 + i * 2] = _char(bytes1(uint8(data[i]) & 0x0f));
}
return string(bytesString);
}
function _char(bytes1 b) internal pure returns (bytes1 c) {
if (uint8(b) < 10) {
return bytes1(uint8(b) + 0x30);
} else {
return bytes1(uint8(b) + 0x57);
}
}
function substring(string memory str, uint startIndex, uint endIndex) internal pure returns (string memory) {
bytes memory strBytes = bytes(str);
bytes memory result = new bytes(endIndex - startIndex);
for (uint i = startIndex; i < endIndex; i++) {
result[i - startIndex] = strBytes[i];
}
return string(result);
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
library Address {
function sendValue(address payable recipient, uint256 amount) internal returns(bool){
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
return success;
}
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) internal _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
uint256 currentAllowance = _allowances[sender][_msgSender()];
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
}
_transfer(sender, recipient, amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/*
* @notice Creates new tokens and adds them to the specified account.
* @dev The function creates a specified amount of tokens and adds them to the specified account, increasing the total supply accordingly.
* @param account The account to which the tokens will be minted.
* @param amount The amount of tokens to be minted.
* @return It emits a Transfer event indicating the minting of tokens from the zero address to the specified account.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/*
* @notice Burns a specific amount of tokens from the specified account.
* @dev The function reduces the balance of the specified account by the specified amount and decreases the total supply accordingly.
* @param account The account from which the tokens will be burned.
* @param amount The amount of tokens to be burned.
* @return It emits a Transfer event indicating the burning of tokens from the account to the zero address.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/*
* @notice Hook that is called before transferring tokens.
* @dev This function is called before transferring tokens from one account to another.
* @param from The account from which the tokens are being transferred.
* @param to The account to which the tokens are being transferred.
* @param amount The amount of tokens being transferred.
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
interface ITimingFoxNFT{
function mint(address to, uint256 quantity, uint8 level) external;
}
contract TimingFox is ERC20, Ownable {
using SafeMath for uint256;
uint256 private mintAmount = 250000 * 10**uint256(decimals());
uint256 private constant mintETHAmount = 0.1 ether;
bool public publicSaleEnabled = false;
mapping(address => uint256) private userETHDeposits; // Record the accumulated amount of ETH deposited by users
uint256[] private rewardThresholds = [5 ether, 10 ether, 20 ether, 30 ether]; // reward threshold
uint256[] private rewardAmounts = [125000, 625000, 2500000, 6000000]; // Corresponding number of reward tokens
mapping(address => uint256) private claimedRewards; // Record the total amount of rewards that the user has received
// User reward collection record: User address -> Reward level -> Whether it has been received
mapping(address => mapping(uint8 => bool)) private rewardMinted;
ITimingFoxNFT public TTimingFoxNFTContract;
uint256 private eventCounter;
event CreativeEnergy(uint256 indexed eventId, address indexed sender, uint256 indexed value);
constructor () ERC20("TimingFox", "TFT")
{
_mint(address(this), 1e10 * (10 ** decimals()));
eventCounter = 0;
}
receive() external payable {}
function mint() external payable {
require(!publicSaleEnabled, "Public sale has ended");
require(owner() != address(0), "Owner address is zero, operation not allowed");
require(msg.value >= mintETHAmount, "Insufficient ETH sent");
// Dynamically calculate the number of tokens a user deserves
uint256 mintQuantity = msg.value.mul(mintAmount).div(mintETHAmount);
address contractAddress = address(this);
require(balanceOf(contractAddress) >= mintQuantity, "Owner does not have enough tokens");
// Transfer tokens from owner to user
super._transfer(contractAddress, msg.sender, mintQuantity);
// Update the user's cumulative deposit amount
userETHDeposits[msg.sender] = userETHDeposits[msg.sender].add(msg.value);
// Check whether the reward threshold is reached and issue the reward
checkAndReward(msg.sender);
eventCounter++;
emit CreativeEnergy(eventCounter, msg.sender, msg.value);
}
function checkAndReward(address user) internal {
uint256 totalReward = 0; // Total token rewards currently due
uint256 userDeposit = userETHDeposits[user]; // Accumulated deposits of users
// Traverse reward levels
for (uint8 level = 1; level <= 4; level++) {
uint256 threshold = rewardThresholds[level - 1];
uint256 reward = rewardAmounts[level - 1] * (10**decimals());
// Check if the reward level is reached
if (userDeposit >= threshold) {
// Update token rewards
totalReward = reward;
// Check if mint method needs to be called
if (address(TTimingFoxNFTContract) != address(0)) {
if (!rewardMinted[user][level]) {
rewardMinted[user][level] = true; // Mark the reward for this level as received
TTimingFoxNFTContract.mint(user, 1, level); // Call NFT mint method
}
}
} else {
break; // User deposit is not enough to reach the next level
}
}
// Check the total amount of token rewards claimed
uint256 claimedReward = claimedRewards[user];
// If the total token reward is greater than the received reward, the difference will be reissued
if (totalReward > claimedReward) {
address contractAddress = address(this);
uint256 rewardToSend = totalReward - claimedReward; // Calculate the difference
require(balanceOf(contractAddress) >= rewardToSend, "Owner does not have enough tokens for rewards");
claimedRewards[user] = totalReward; // Update the total amount of rewards claimed
super._transfer(contractAddress, user, rewardToSend); // Issue token rewards
}
}
function setNftContract(address _contract) external onlyOwner {
TTimingFoxNFTContract = ITimingFoxNFT(_contract);
}
function sendAirdrops(address[] memory recipients, uint256 amount) external onlyOwner{
require(owner() != address(0), "Owner address is zero, operation not allowed");
for (uint i = 0; i < recipients.length; i++) {
super._transfer(address(this), recipients[i], amount);
}
}
function endedPublicSaleEnabled() external onlyOwner{
require(!publicSaleEnabled, "Public sale has ended");
publicSaleEnabled = true;
}
function isContract(address _addr) internal view returns (bool) {
uint32 size;
assembly {
size := extcodesize(_addr)
}
return (size > 0);
}
function _transfer(address from,address to,uint256 amount) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
if (isContract(to) && (from != owner() && !publicSaleEnabled)) {
revert("Only the owner can add liquidity before public sale ends.");
}
if (amount == 0) {
super._transfer(from, to, 0);
return;
}
super._transfer(from, to, amount);
}
function claimStuckTokens(address token, uint256 amount) external onlyOwner {
require(token != address(this), "Owner cannot claim contract's balance of its own tokens");
if (token == address(0)) {
require(amount <= address(this).balance, "Insufficient contract balance");
payable(msg.sender).transfer(amount);
return;
}
IERC20 ERC20token = IERC20(token);
uint256 contractBalance = ERC20token.balanceOf(address(this));
require(amount <= contractBalance, "Insufficient token balance in contract");
ERC20token.transfer(msg.sender, amount);
}
}
Read Contract
TTimingFoxNFTContract 0x606a1be8 → address
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint8
name 0x06fdde03 → string
owner 0x8da5cb5b → address
publicSaleEnabled 0x2ab91bba → bool
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256
Write Contract 12 functions
These functions modify contract state and require a wallet transaction to execute.
approve 0x095ea7b3
address spender
uint256 amount
returns: bool
claimStuckTokens 0xc6acc77a
address token
uint256 amount
decreaseAllowance 0xa457c2d7
address spender
uint256 subtractedValue
returns: bool
endedPublicSaleEnabled 0xbc66a72d
No parameters
increaseAllowance 0x39509351
address spender
uint256 addedValue
returns: bool
mint 0x1249c58b
No parameters
renounceOwnership 0x715018a6
No parameters
sendAirdrops 0xb26baf44
address[] recipients
uint256 amount
setNftContract 0x52f5ad77
address _contract
transfer 0xa9059cbb
address recipient
uint256 amount
returns: bool
transferFrom 0x23b872dd
address sender
address recipient
uint256 amount
returns: bool
transferOwnership 0xf2fde38b
address newOwner
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