Contract Name:
LaunchPadToken
Contract Source Code:
File 1 of 1 : LaunchPadToken
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 value) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets a `value` amount of tokens as the allowance of `spender` over the
* caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 value) external returns (bool);
}
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
// File: LP.sol
pragma solidity 0.8.24;
contract LaunchPadToken is Context, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
uint8 private constant _decimals = 18;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_mint(0xa3c02027874c736E6e6D22A3d00C4f3a7edd795d, 400_000_000 * (10 ** _decimals)); //400 Million
_mint(0xa3c02027874c736E6e6D22A3d00C4f3a7edd795d, 250_000_000 * (10 ** _decimals)); //250 Million
_mint(0xa3c02027874c736E6e6D22A3d00C4f3a7edd795d, 150_000_000 * (10 ** _decimals)); //150 Million
_mint(0xa3c02027874c736E6e6D22A3d00C4f3a7edd795d, 125_000_000 * (10 ** _decimals)); //125 Million
_mint(0xa3c02027874c736E6e6D22A3d00C4f3a7edd795d, 100_000_000 * (10 ** _decimals)); //100 Million
}
function name() external view virtual override returns (string memory) {
return _name;
}
function symbol() external view virtual override returns (string memory) {
return _symbol;
}
function decimals() external view virtual override returns (uint8) {
return _decimals;
}
function totalSupply() external view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) external view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) external virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address from, address to) external view virtual override returns (uint256) {
return _allowances[from][to];
}
function approve(address to, uint256 amount) external virtual override returns (bool) {
_approve(_msgSender(), to, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) external virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, 'ERC20: transfer amount exceeds allowance');
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
function increaseAllowance(address to, uint256 addedValue) external virtual returns (bool) {
_approve(_msgSender(), to, _allowances[_msgSender()][to] + addedValue);
return true;
}
function decreaseAllowance(address to, uint256 subtractedValue) external virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][to];
require(currentAllowance >= subtractedValue, 'ERC20: decreased allowance below zero');
unchecked {
_approve(_msgSender(), to, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(amount > 0, 'ERC20: transfer amount is zero');
require(sender != address(0), 'ERC20: transfer from the zero address');
require(recipient != address(0), 'ERC20: transfer to the zero address');
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);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), 'ERC20: mint to the zero address');
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), 'ERC20: burn from the zero address');
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);
}
function burn(uint256 amount) external {
_burn(_msgSender(), amount);
}
function _approve(address from, address to, uint256 amount) internal virtual {
require(from != address(0), 'ERC20: approve from the zero address');
require(to != address(0), 'ERC20: approve to the zero address');
_allowances[from][to] = amount;
emit Approval(from, to, amount);
}
}