Contract Source Code:
File 1 of 1 : LuxChain
// SPDX-License-Identifier: MIT
// https://luxchain.io/
pragma solidity ^0.8.0;
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);
}
contract LuxChain is IERC20 {
string public name = "LuxChain";
string public symbol = "LUX";
uint8 public decimals = 18;
uint256 private _totalSupply;
uint256 private _burnedTokens = 0;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
address public owner;
uint256 public constant CAP = 33000000 * 10**18; // 33M MAX SUPPLY
modifier onlyOwner() {
require(msg.sender == owner, "Not the contract owner");
_;
}
constructor() {
owner = msg.sender;
}
function forge(address to, uint256 amount) external onlyOwner {
require(_totalSupply + _burnedTokens + amount <= CAP, "Exceeds CAP");
_forge(to, amount);
}
function transferOwnership(address newOwner) external onlyOwner {
owner = newOwner;
}
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function allowance(address _owner, address spender) public view override returns (uint256) {
return _allowances[_owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, msg.sender, _allowances[sender][msg.sender] - amount);
return true;
}
function burn(uint256 amount) public onlyOwner {
require(_balances[msg.sender] >= amount, "Insufficient balance to burn");
_balances[msg.sender] = _balances[msg.sender] - amount;
_burnedTokens += amount;
_totalSupply -= amount;
emit Transfer(msg.sender, address(0), amount);
}
function totalBurned() public view returns (uint256) {
return _burnedTokens;
}
function _transfer(address sender, address recipient, uint256 amount) internal {
require(sender != address(0), "Invalid sender address");
require(recipient != address(0), "Invalid recipient address");
require(_balances[sender] >= amount, "Insufficient balance");
_balances[sender] = _balances[sender] - amount;
_balances[recipient] = _balances[recipient] + amount;
emit Transfer(sender, recipient, amount);
}
function _forge(address account, uint256 amount) internal {
require(account != address(0), "Invalid address");
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
function _approve(address _owner, address spender, uint256 amount) internal {
require(_owner != address(0), "Invalid owner address");
require(spender != address(0), "Invalid spender address");
require(_allowances[_owner][spender] >= 0, "Invalid allowance amount");
_allowances[_owner][spender] = amount;
emit Approval(_owner, spender, amount);
}
}