Smart Contracts
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Last updated
/**
* ,--, .--. .-. .-. ,'|"\.-. .-. ,--, .-. .-. .--. ,-..-. .-.
* .' .') / /\ \ | \| | | |\ \\ \_/ )/ .' .') | | | | / /\ \ |(|| \| |
* | |(_) / /__\ \| | | | | \ \\ (_) | |(_) | `-' |/ /__\ \(_)| | |
* \ \ | __ || |\ | | | \ \) ( \ \ | .-. || __ || || |\ |
* \ `-. | | |)|| | |)| /(|`-' /| | \ `-. | | |)|| | |)|| || | |)|
* \____\|_| (_)/( (_)(__)`--'/(_| \____\/( (_)|_| (_)`-'/( (_)
* (__) (__) (__) (__)
*
* Website: https://candychain.com
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
contract WrappedCandyChain {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
address public owner;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 public totalSupply;
string public name;
string public symbol;
uint8 public decimals;
uint256 public MaxSupply;
uint256 private _totalSupply;
constructor (string memory _name, string memory _symbol, uint8 _decimals, address _owner, uint _initialMint) {
owner = _owner==address(0) ? msg.sender : _owner;
name = _name;
symbol = _symbol;
decimals = _decimals;
MaxSupply = 100_000_000_000 * 10**_decimals;
if (_initialMint!=0) {
_mint(msg.sender, _initialMint * 10 ** _decimals);
}
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function allowance(address account, address spender) public view returns (uint256) {
return _allowances[account][spender];
}
function approve(address spender, uint256 amount) public returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) {
_transfer(sender, recipient, amount);
require(_allowances[sender][msg.sender] >= amount, 'ERC20: transfer amount exceeds allowance');
_approve(sender, msg.sender, _allowances[sender][msg.sender] - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
uint c = _allowances[msg.sender][spender] + addedValue;
require(c >= addedValue, "CancyChain: addition overflow");
_approve(msg.sender, spender, c);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
require(_allowances[msg.sender][msg.sender] >= subtractedValue, 'ERC20: decreased allowance below zero');
_approve(msg.sender, spender, _allowances[msg.sender][msg.sender] - subtractedValue);
return true;
}
function mint(uint256 amount) public onlyOwner returns (bool) {
_mint(msg.sender, amount);
return true;
}
function _transfer(address sender, address recipient, uint256 amount) internal {
require(sender != address(0), "CancyChain: transfer from the zero address");
require(recipient != address(0), "CancyChain: transfer to the zero address");
require(_balances[sender] >= amount, "CancyChain: transfer amount exceeds balance");
_balances[sender] -= amount;
uint c = _balances[recipient] + amount;
require(c >= amount, "CancyChain: addition overflow");
_balances[recipient] = c;
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal {
require(
totalSupply + amount <= MaxSupply,
"CancyChain: Maximum mint allowed cant exceed the total supply"
);
require(account != address(0), "CancyChain: mint to the zero address");
uint c = totalSupply + amount;
require(c >= amount, "CancyChain: addition overflow");
totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal {
require(account != address(0), "CancyChain: burn from the zero address");
require(_balances[account] >= amount, "CancyChain: burn amount exceeds balance");
_balances[account] -= amount;
totalSupply -= amount;
emit Transfer(account, address(0), amount);
}
function _approve(address account, address spender, uint256 amount) internal {
require(account != address(0), "CancyChain: approve from the zero address");
require(spender != address(0), "CancyChain: approve to the zero address");
_allowances[account][spender] = amount;
emit Approval(account, spender, amount);
}
function mintTo(address account, uint256 amount) external onlyOwner {
_mint(account, amount);
}
function burnFrom(address account, uint256 amount) external onlyOwner {
_burn(account, amount);
}
}