Contract Source Code:
pragma solidity 0.6.4;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
}
pragma solidity 0.6.4;
interface HEX {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) 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 `amount` 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 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @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);//from address(0) for minting
/**
* @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);
function stakeStart(uint256 newStakedHearts, uint256 newStakedDays) external;
function stakeEnd(uint256 stakeIndex, uint40 stakeIdParam) external;
function stakeCount(address stakerAddr) external view returns (uint256);
function stakeLists(address owner, uint256 stakeIndex) external view returns (uint40, uint72, uint72, uint16, uint16, uint16, bool);
function currentDay() external view returns (uint256);
function dailyDataRange(uint256 beginDay, uint256 endDay) external view returns (uint256[] memory);
function globalInfo() external view returns (uint256[13] memory);
}
//HEXBET.sol
//
//
pragma solidity 0.6.4;
import "./SafeMath.sol";
import "./IERC20.sol";
import "./HEX.sol";
import "./Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves.
// A Solidity high level call has three parts:
// 1. The target address is checked to verify it contains contract code
// 2. The call itself is made, and success asserted
// 3. The return value is decoded, which in turn checks the size of the returned data.
// solhint-disable-next-line max-line-length
require(address(token).isContract(), "SafeERC20: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = address(token).call(data);
require(success, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
//Uniswap factory interface
interface UniswapFactoryInterface {
// Create Exchange
function createExchange(address token) external returns (address exchange);
// Get Exchange and Token Info
function getExchange(address token) external view returns (address exchange);
function getToken(address exchange) external view returns (address token);
function getTokenWithId(uint256 tokenId) external view returns (address token);
// Never use
function initializeFactory(address template) external;
}
//Uniswap Interface
interface UniswapExchangeInterface {
// Address of ERC20 token sold on this exchange
function tokenAddress() external view returns (address token);
// Address of Uniswap Factory
function factoryAddress() external view returns (address factory);
// Provide Liquidity
function addLiquidity(uint256 min_liquidity, uint256 max_tokens, uint256 deadline) external payable returns (uint256);
function removeLiquidity(uint256 amount, uint256 min_eth, uint256 min_tokens, uint256 deadline) external returns (uint256, uint256);
// Get Prices
function getEthToTokenInputPrice(uint256 eth_sold) external view returns (uint256 tokens_bought);
function getEthToTokenOutputPrice(uint256 tokens_bought) external view returns (uint256 eth_sold);
function getTokenToEthInputPrice(uint256 tokens_sold) external view returns (uint256 eth_bought);
function getTokenToEthOutputPrice(uint256 eth_bought) external view returns (uint256 tokens_sold);
// Trade ETH to ERC20
function ethToTokenSwapInput(uint256 min_tokens, uint256 deadline) external payable returns (uint256 tokens_bought);
function ethToTokenTransferInput(uint256 min_tokens, uint256 deadline, address recipient) external payable returns (uint256 tokens_bought);
function ethToTokenSwapOutput(uint256 tokens_bought, uint256 deadline) external payable returns (uint256 eth_sold);
function ethToTokenTransferOutput(uint256 tokens_bought, uint256 deadline, address recipient) external payable returns (uint256 eth_sold);
// Trade ERC20 to ETH
function tokenToEthSwapInput(uint256 tokens_sold, uint256 min_eth, uint256 deadline) external returns (uint256 eth_bought);
function tokenToEthTransferInput(uint256 tokens_sold, uint256 min_eth, uint256 deadline, address recipient) external returns (uint256 eth_bought);
function tokenToEthSwapOutput(uint256 eth_bought, uint256 max_tokens, uint256 deadline) external returns (uint256 tokens_sold);
function tokenToEthTransferOutput(uint256 eth_bought, uint256 max_tokens, uint256 deadline, address recipient) external returns (uint256 tokens_sold);
// Trade ERC20 to ERC20
function tokenToTokenSwapInput(uint256 tokens_sold, uint256 min_tokens_bought, uint256 min_eth_bought, uint256 deadline, address token_addr) external returns (uint256 tokens_bought);
function tokenToTokenTransferInput(uint256 tokens_sold, uint256 min_tokens_bought, uint256 min_eth_bought, uint256 deadline, address recipient, address token_addr) external returns (uint256 tokens_bought);
function tokenToTokenSwapOutput(uint256 tokens_bought, uint256 max_tokens_sold, uint256 max_eth_sold, uint256 deadline, address token_addr) external returns (uint256 tokens_sold);
function tokenToTokenTransferOutput(uint256 tokens_bought, uint256 max_tokens_sold, uint256 max_eth_sold, uint256 deadline, address recipient, address token_addr) external returns (uint256 tokens_sold);
// Trade ERC20 to Custom Pool
function tokenToExchangeSwapInput(uint256 tokens_sold, uint256 min_tokens_bought, uint256 min_eth_bought, uint256 deadline, address exchange_addr) external returns (uint256 tokens_bought);
function tokenToExchangeTransferInput(uint256 tokens_sold, uint256 min_tokens_bought, uint256 min_eth_bought, uint256 deadline, address recipient, address exchange_addr) external returns (uint256 tokens_bought);
function tokenToExchangeSwapOutput(uint256 tokens_bought, uint256 max_tokens_sold, uint256 max_eth_sold, uint256 deadline, address exchange_addr) external returns (uint256 tokens_sold);
function tokenToExchangeTransferOutput(uint256 tokens_bought, uint256 max_tokens_sold, uint256 max_eth_sold, uint256 deadline, address recipient, address exchange_addr) external returns (uint256 tokens_sold);
}
////////////////////////////////////////////////
////////////////////EVENTS/////////////////////
//////////////////////////////////////////////
contract TokenEvents {
//when a user locks tokens
event TokenLock(
address indexed user,
uint value
);
//when a user unlocks tokens
event TokenUnlock(
address indexed user,
uint value
);
//when founder tokens are locked
event FounderLock (
uint hxbAmt,
uint timestamp
);
//when founder tokens are unlocked
event FounderUnlock (
uint hxbAmt,
uint timestamp
);
}
//////////////////////////////////////
//////////HEXBET TOKEN CONTRACT////////
////////////////////////////////////
contract HEXBET is IERC20, TokenEvents {
using SafeMath for uint256;
using SafeERC20 for HEXBET;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
//uniswap setup (used in setup only)
address internal uniFactory = 0xc0a47dFe034B400B47bDaD5FecDa2621de6c4d95;
address internal uniETHHEX = 0x05cDe89cCfa0adA8C88D5A23caaa79Ef129E7883;
address public uniETHHXB = address(0);
UniswapExchangeInterface internal uniHEXInterface = UniswapExchangeInterface(uniETHHEX);
UniswapExchangeInterface internal uniHXBInterface;
UniswapFactoryInterface internal uniFactoryInterface = UniswapFactoryInterface(uniFactory);
//hex contract setup
address internal hexAddress = 0x2b591e99afE9f32eAA6214f7B7629768c40Eeb39;
HEX internal hexInterface = HEX(hexAddress);
//mint / lock
uint public unlockLvl = 0;
uint public founderLockStartTimestamp = 0;
uint public founderLockDayLength = 3650;//10 years (10% released every year)
uint public founderLockedTokens = 0;
uint private allFounderLocked = 0;
bool public mintBlock;//disables any more tokens ever being minted once _totalSupply reaches _maxSupply
uint public mintRatio = 1000; //inital @ 1000, raises
uint public minLockDayLength = 7; // min days to lock
uint internal daySeconds = 86400; // seconds in a day
uint public totalLocked = 0;
mapping (address => uint) public tokenLockedBalances;//balance of HXB locked mapped by user
//tokenomics
uint256 public _maxSupply = 50000000000000000000;// max supply @ 500B
uint256 internal _totalSupply;
string public constant name = "hex.bet";
string public constant symbol = "HXB";
uint public constant decimals = 8;
//multisig
address payable internal MULTISIG = 0x35C7a87EbC3E9fBfd2a31579c70f0A2A8D4De4c5;
//admin
address payable internal _p1 = 0xD64FF89558Cd0EA20Ae7aA032873d290801865f3;
address payable internal _p2 = 0xbf1984B12878c6A25f0921535c76C05a60bdEf39;
bool private sync;
//minters
address[] public minterAddresses;// future contracts to enable minting of HXB relative to HEX
mapping(address => bool) admins;
mapping(address => bool) minters;
mapping (address => Locked) public locked;
struct Locked{
uint256 lockStartTimestamp;
uint256 totalEarnedInterest;
}
modifier onlyMultisig(){
require(msg.sender == MULTISIG, "not authorized");
_;
}
modifier onlyAdmins(){
require(admins[msg.sender], "not an admin");
_;
}
modifier onlyMinters(){
require(minters[msg.sender], "not a minter");
_;
}
//protects against potential reentrancy
modifier synchronized {
require(!sync, "Sync lock");
sync = true;
_;
sync = false;
}
constructor() public {
admins[_p1] = true;
admins[_p2] = true;
//mint founder tokens
mintFounderTokens(_maxSupply.mul(20).div(100));//20% of max supply
//create uni exchange
uniETHHXB = uniFactoryInterface.createExchange(address(this));
uniHXBInterface = UniswapExchangeInterface(uniETHHXB);
}
//fallback for eth sent to contract - auto distribute as donation
receive() external payable{
donate();
}
function _initialLiquidity()
public
payable
onlyAdmins
synchronized
{
require(msg.value >= 0.001 ether, "eth value too low");
//add liquidity
uint heartsForEth = uniHEXInterface.getEthToTokenInputPrice(msg.value);//price of eth value in hex
uint hxb = heartsForEth / mintRatio;
_mint(address(this), hxb);//mint tokens to this contract
this.safeApprove(uniETHHXB, hxb);//approve uni exchange contract
uniHXBInterface.addLiquidity{value:msg.value}(0, hxb, (now + 15 minutes)); //send tokens and eth to uni as liquidity*/
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20};
*
* Requirements:
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for `sender`'s tokens of at least
* `amount`.
*/
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
_approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
_approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(address sender, address recipient, uint256 amount) internal {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply unless mintBLock is true
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements
*
* - `to` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal {
uint256 amt = amount;
require(account != address(0), "ERC20: mint to the zero address");
if(!mintBlock){
if(_totalSupply < _maxSupply){
if(_totalSupply.add(amt) > _maxSupply){
amt = _maxSupply.sub(_totalSupply);
_totalSupply = _maxSupply;
mintBlock = true;
}
else{
_totalSupply = _totalSupply.add(amt);
if(_totalSupply >= _maxSupply.mul(30).div(100)){
mintRatio = 2000;
if(_totalSupply >= _maxSupply.mul(40).div(100)){
mintRatio = 3000;
if(_totalSupply >= _maxSupply.mul(50).div(100)){
mintRatio = 4000;
if(_totalSupply >= _maxSupply.mul(60).div(100)){
mintRatio = 5000;
if(_totalSupply >= _maxSupply.mul(70).div(100)){
mintRatio = 6000;
if(_totalSupply >= _maxSupply.mul(80).div(100)){
mintRatio = 8000;
if(_totalSupply >= _maxSupply.mul(90).div(100)){
mintRatio = 10000;
}
}
}
}
}
}
}
}
_balances[account] = _balances[account].add(amt);
emit Transfer(address(0), account, amt);
}
}
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal {
require(account != address(0), "ERC20: burn from the zero address");
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.
*
* This is internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(address owner, address spender, uint256 amount) internal {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Destroys `amount` tokens from `account`.`amount` is then deducted
* from the caller's allowance.
*
* See {_burn} and {_approve}.
*/
function _burnFrom(address account, uint256 amount) internal {
_burn(account, amount);
_approve(account, msg.sender, _allowances[account][msg.sender].sub(amount, "ERC20: burn amount exceeds allowance"));
}
/**
* @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);//from address(0) for minting
/**
* @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);
//mint HXB to founders (only ever called in constructor)
function mintFounderTokens(uint tokens)
internal
synchronized
returns(bool)
{
require(tokens <= _maxSupply.mul(20).div(100), "founder tokens cannot be over 20%");
_mint(_p1, tokens/4);//mint HXB
_mint(_p2, tokens/4);//mint HXB
_mint(address(this), tokens/2);//mint HXB to be locked for 10 years, 10% unlocked every year
founderLock(tokens/2);
return true;
}
function founderLock(uint tokens)
internal
{
founderLockStartTimestamp = now;
founderLockedTokens = tokens;
allFounderLocked = tokens;
emit FounderLock(tokens, founderLockStartTimestamp);
}
function unlock()
public
onlyAdmins
synchronized
{
uint sixMonths = founderLockDayLength/10;
require(unlockLvl < 10, "token unlock complete");
require(founderLockStartTimestamp.add(sixMonths.mul(daySeconds)) <= now, "tokens cannot be unlocked yet");//must be at least over 6 months
uint value = allFounderLocked/10;
if(founderLockStartTimestamp.add((sixMonths).mul(daySeconds)) <= now && unlockLvl == 0){
unlockLvl++;
founderLockedTokens = founderLockedTokens.sub(value);
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else if(founderLockStartTimestamp.add((sixMonths * 2).mul(daySeconds)) <= now && unlockLvl == 1){
unlockLvl++;
founderLockedTokens = founderLockedTokens.sub(value);
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else if(founderLockStartTimestamp.add((sixMonths * 3).mul(daySeconds)) <= now && unlockLvl == 2){
unlockLvl++;
founderLockedTokens = founderLockedTokens.sub(value);
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else if(founderLockStartTimestamp.add((sixMonths * 4).mul(daySeconds)) <= now && unlockLvl == 3){
unlockLvl++;
founderLockedTokens = founderLockedTokens.sub(value);
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else if(founderLockStartTimestamp.add((sixMonths * 5).mul(daySeconds)) <= now && unlockLvl == 4){
unlockLvl++;
founderLockedTokens = founderLockedTokens.sub(value);
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else if(founderLockStartTimestamp.add((sixMonths * 6).mul(daySeconds)) <= now && unlockLvl == 5){
unlockLvl++;
founderLockedTokens = founderLockedTokens.sub(value);
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else if(founderLockStartTimestamp.add((sixMonths * 7).mul(daySeconds)) <= now && unlockLvl == 6){
unlockLvl++;
founderLockedTokens = founderLockedTokens.sub(value);
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else if(founderLockStartTimestamp.add((sixMonths * 8).mul(daySeconds)) <= now && unlockLvl == 7)
{
unlockLvl++;
founderLockedTokens = founderLockedTokens.sub(value);
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else if(founderLockStartTimestamp.add((sixMonths * 9).mul(daySeconds)) <= now && unlockLvl == 8){
unlockLvl++;
founderLockedTokens = founderLockedTokens.sub(value);
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else if(founderLockStartTimestamp.add((sixMonths * 10).mul(daySeconds)) <= now && unlockLvl == 9){
unlockLvl++;
if(founderLockedTokens >= value){
founderLockedTokens = founderLockedTokens.sub(value);
}
else{
value = founderLockedTokens;
founderLockedTokens = 0;
}
transfer(_p1, value.div(2));
transfer(_p2, value.div(2));
}
else{
revert();
}
emit FounderUnlock(value, now);
}
////////////////////////////////////////////////////////
/////////////////PUBLIC FACING - HXB CONTROL//////////
//////////////////////////////////////////////////////
//lock HXB tokens to contract
function LockTokens(uint amt)
public
{
require(amt > 0, "zero input");
require(tokenBalance() >= amt, "Error: insufficient balance");//ensure user has enough funds
if(isLockFinished(msg.sender)){
UnlockTokens();//unlocks all currently locked tokens + profit
}
//update balances
tokenLockedBalances[msg.sender] = tokenLockedBalances[msg.sender].add(amt);
totalLocked = totalLocked.add(amt);
locked[msg.sender].lockStartTimestamp = now;
_transfer(msg.sender, address(this), amt);//make transfer
emit TokenLock(msg.sender, amt);
}
//unlock HXB tokens from contract
function UnlockTokens()
public
synchronized
{
require(tokenLockedBalances[msg.sender] > 0,"Error: unsufficient locked balance");//ensure user has enough locked funds
require(isLockFinished(msg.sender), "tokens cannot be unlocked yet. min 7 day lock");
uint amt = tokenLockedBalances[msg.sender];
uint256 interest = calcLockingRewards(msg.sender);
_mint(msg.sender, interest);//mint HXB - total unlocked / 1000 * (minLockDayLength + days past)
locked[msg.sender].totalEarnedInterest += interest;
tokenLockedBalances[msg.sender] = 0;
locked[msg.sender].lockStartTimestamp = 0;
totalLocked = totalLocked.sub(amt);
_transfer(address(this), msg.sender, amt);//make transfer
emit TokenUnlock(msg.sender, amt);
}
//returns locking reward in hxb
function calcLockingRewards(address _user)
public
view
returns(uint)
{
return (tokenLockedBalances[_user].div(2500) * (minLockDayLength + daysPastMinLockTime()));
}
//returns amount of days locked past min lock time of 7 days
function daysPastMinLockTime()
public
view
returns(uint)
{
uint daysPast = now.sub(locked[msg.sender].lockStartTimestamp).div(daySeconds);
if(daysPast >= minLockDayLength){
return daysPast - minLockDayLength;// returns 0 if under 1 day passed
}
else{
return 0;
}
}
//mint HXB to address ( for use in external contracts within the ecosystem)
function mintHXB(uint value, address receiver)
public
onlyMinters
returns(bool)
{
uint amt = value.div(mintRatio);
address minter = receiver;
_mint(minter, amt);//mint HXB
return true;
}
///////////////////////////////
////////ADMIN ONLY//////////////
///////////////////////////////
//allows addition of contract addresses that can call this contracts mint function.
function addMinter(address minter)
public
onlyMultisig
returns (bool)
{
minters[minter] = true;
minterAddresses.push(minter);
return true;
}
///////////////////////////////
////////VIEW ONLY//////////////
///////////////////////////////
//total HXB locked in contract
function totalLockedTokenBalance()
public
view
returns (uint256)
{
return totalLocked;
}
//HXB balance of caller
function tokenBalance()
public
view
returns (uint256)
{
return balanceOf(msg.sender);
}
//
function isLockFinished(address _user)
public
view
returns(bool)
{
if(locked[_user].lockStartTimestamp == 0){
return false;
}
else{
return locked[_user].lockStartTimestamp.add((minLockDayLength).mul(daySeconds)) <= now;
}
}
function donate() public payable {
require(msg.value > 0);
bool success = false;
uint256 balance = msg.value;
//distribute
uint256 share = balance.div(2);
(success, ) = _p1.call{value:share}{gas:21000}('');
require(success, "Transfer failed");
(success, ) = _p2.call{value:share}{gas:21000}('');
require(success, "Transfer failed");
}
}
pragma solidity 0.6.4;
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see {ERC20Detailed}.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) 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 `amount` 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 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @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);//from address(0) for minting
/**
* @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);
}
pragma solidity 0.6.4;
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}