Contract Name:
PayItForward
Contract Source Code:
File 1 of 1 : PayItForward
/*
PayItForward
2% to previousSender
2% to the transaction before them
1% to dev wallet for marketing
Contract created by Rusty Shackleford
*/
pragma solidity ^0.5.0;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender) external view returns (uint256);
function transfer(address to, uint256 value) external returns (bool);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
assert(c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a / b;
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
function ceil(uint256 a, uint256 m) internal pure returns (uint256) {
uint256 c = add(a,m);
uint256 d = sub(c,1);
return mul(div(d,m),m);
}
}
contract ERC20Detailed is IERC20 {
string private _name;
string private _symbol;
uint8 private _decimals;
constructor(string memory name, string memory symbol, uint8 decimals) public {
_name = name;
_symbol = symbol;
_decimals = decimals;
}
function name() public view returns(string memory) {
return _name;
}
function symbol() public view returns(string memory) {
return _symbol;
}
function decimals() public view returns(uint8) {
return _decimals;
}
}
contract PayItForward is ERC20Detailed {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowed;
address devWallet = 0x881898e48608c72a9132fc123C339FeE8FF96973;
address[] pifWallets = [devWallet, devWallet, devWallet];
string constant tokenName = "PIF.money";
string constant tokenSymbol = "PIF";
uint8 constant tokenDecimals = 18;
uint256 public _totalSupply = 8888000000000000000000;
uint256 public basePercent = 5;
address uniswapAddress;
bool public pifMode = false;
constructor() public payable ERC20Detailed(tokenName, tokenSymbol, tokenDecimals) {
_mint(msg.sender, _totalSupply);
}
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
function allowance(address owner, address spender) public view returns (uint256) {
return _allowed[owner][spender];
}
function amountToTake(uint256 value) public view returns (uint256) {
uint256 amountLost = value.mul(basePercent).div(100);
return amountLost;
}
function transfer(address to, uint256 value) public returns (bool) {
require(value <= _balances[msg.sender]);
require(to != address(0));
_balances[msg.sender] = _balances[msg.sender].sub(value);
if (pifMode){
if(uniswapAddress == msg.sender){
uint256 totalPIF = amountToTake(value);
uint256 tokensToPIF = totalPIF.div(5).mul(2);
uint256 tokensToDev = totalPIF.div(5);
uint256 tokensToTransfer = value.sub(totalPIF);
_balances[to] = _balances[to].add(tokensToTransfer);
_balances[pifWallets[0]] = _balances[pifWallets[0]].add(tokensToPIF);
_balances[pifWallets[1]] = _balances[pifWallets[1]].add(tokensToPIF);
_balances[devWallet] = _balances[devWallet].add(tokensToDev);
emit Transfer(msg.sender, to, tokensToTransfer);
emit Transfer(msg.sender, pifWallets[1], tokensToPIF);
emit Transfer(msg.sender, pifWallets[0], tokensToPIF);
emit Transfer(msg.sender, devWallet, tokensToDev);
}
else {
address previousSender = pifWallets[0];
pifWallets[0] = pifWallets[1];
pifWallets[1] = msg.sender;
uint256 totalPIF = amountToTake(value);
uint256 tokensToPIF = totalPIF.div(5).mul(2);
uint256 tokensToDev = totalPIF.div(5);
uint256 tokensToTransfer = value.sub(totalPIF);
_balances[to] = _balances[to].add(tokensToTransfer);
_balances[previousSender] = _balances[previousSender].add(tokensToPIF);
_balances[pifWallets[0]] = _balances[pifWallets[0]].add(tokensToPIF);
_balances[devWallet] = _balances[devWallet].add(tokensToDev);
emit Transfer(msg.sender, to, tokensToTransfer);
emit Transfer(msg.sender, previousSender, tokensToPIF);
emit Transfer(msg.sender, pifWallets[0], tokensToPIF);
emit Transfer(msg.sender, devWallet, tokensToDev);
}
}
else{
_balances[to] = _balances[to].add(value);
emit Transfer(msg.sender, to, value);
}
return true;
}
function multiTransfer(address[] memory receivers, uint256[] memory amounts) public {
for (uint256 i = 0; i < receivers.length; i++) {
transfer(receivers[i], amounts[i]);
}
}
function approve(address spender, uint256 value) public returns (bool) {
require(spender != address(0));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
function transferFrom(address from, address to, uint256 value) public returns (bool) {
require(value <= _balances[from]);
require(value <= _allowed[from][msg.sender]);
require(to != address(0));
_balances[from] = _balances[from].sub(value);
if (pifMode){
if(uniswapAddress == msg.sender){
uint256 totalPIF = amountToTake(value);
uint256 tokensToPIF = totalPIF.div(5).mul(2);
uint256 tokensToDev = totalPIF.div(5);
uint256 tokensToTransfer = value.sub(totalPIF);
_balances[to] = _balances[to].add(tokensToTransfer);
_balances[pifWallets[0]] = _balances[pifWallets[0]].add(tokensToPIF);
_balances[pifWallets[1]] = _balances[pifWallets[1]].add(tokensToPIF);
_balances[devWallet] = _balances[devWallet].add(tokensToDev);
emit Transfer(from, to, tokensToTransfer);
emit Transfer(from, pifWallets[1], tokensToPIF);
emit Transfer(from, pifWallets[0], tokensToPIF);
emit Transfer(from, devWallet, tokensToDev);
}
else {
address previousSender = pifWallets[0];
pifWallets[0] = pifWallets[1];
pifWallets[1] = from;
uint256 totalPIF = amountToTake(value);
uint256 tokensToPIF = totalPIF.div(5).mul(2);
uint256 tokensToDev = totalPIF.div(5);
uint256 tokensToTransfer = value.sub(totalPIF);
_balances[to] = _balances[to].add(tokensToTransfer);
_balances[previousSender] = _balances[previousSender].add(tokensToPIF);
_balances[pifWallets[0]] = _balances[pifWallets[0]].add(tokensToPIF);
_balances[devWallet] = _balances[devWallet].add(tokensToDev);
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
emit Transfer(from, to, tokensToTransfer);
emit Transfer(from, pifWallets[1], tokensToPIF);
emit Transfer(from, pifWallets[0], tokensToPIF);
emit Transfer(from, devWallet, tokensToDev);
}
}
else {
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public {
require(spender != address(0));
_allowed[msg.sender][spender] = (_allowed[msg.sender][spender].add(addedValue));
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
}
function decreaseAllowance(address spender, uint256 subtractedValue) public {
require(spender != address(0));
_allowed[msg.sender][spender] = (_allowed[msg.sender][spender].sub(subtractedValue));
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
}
function _mint(address account, uint256 amount) internal {
require(amount != 0);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function burn(uint256 amount) external {
_burn(msg.sender, amount);
}
function _burn(address account, uint256 amount) internal {
require(amount != 0);
require(amount <= _balances[account]);
_totalSupply = _totalSupply.sub(amount);
_balances[account] = _balances[account].sub(amount);
emit Transfer(account, address(0), amount);
}
function burnFrom(address account, uint256 amount) external {
require(amount <= _allowed[account][msg.sender]);
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(amount);
_burn(account, amount);
}
function enablePIFMode() public {
require (msg.sender == devWallet);
pifMode = true;
}
function disablePIFMode() public {
require (msg.sender == devWallet);
pifMode = false;
}
function setUniAddress(address _lpToken) public {
require (msg.sender == devWallet);
uniswapAddress = _lpToken;
}
}