pragma solidity ^0.4.20; /* */ contract EgyptPyramid { /*================================= = MODIFIERS = =================================*/ // only people with tokens modifier onlyBagholders() { require(myTokens() > 0); _; } // only people with profits modifier onlyStronghands() { require(myDividends(true) > 0); _; } // dinamically controls transition between initial only ambassadors and public periods modifier pyramidConstruct(bool buyLimits) { bool onlyAmbassadors = true; // we go public once we reach 8 ether in the contract if (address(this).balance >= 8 ether) onlyAmbassadors = false; // first get mummy account's token balance uint256 _MummyaccountTokens = tokenBalanceLedger_[_Mummyaccount]; uint256 _MummyaccountEthereum = tokensToEthereum_(_MummyaccountTokens); if (onlyAmbassadors && msg.sender == _Mummyaccount) { // mummy account can only buy up to 1 ETH worth of tokens require(_MummyaccountEthereum <= 1 ether); } else if (onlyAmbassadors && ambassadors_[msg.sender]) { // ambassadors can buy up to 2 ETH worth of tokens only after mummy account reached 1 ETH and until balance in contract reaches 8 ETH uint256 _AmbassadorTokens = tokenBalanceLedger_[msg.sender]; uint256 _AmbassadorEthereum = tokensToEthereum_(_AmbassadorTokens); require( _MummyaccountEthereum == 1 ether && _AmbassadorEthereum <= 2 ether ); } else { require(!onlyAmbassadors); // we apply limits only to buy and fallback functions if (buyLimits) require(msg.value <= limits()); } _; } /*============================== = EVENTS = ==============================*/ event onTokenPurchase( address indexed customerAddress, uint256 incomingEthereum, uint256 tokensMinted, address indexed referredBy ); event onTokenSell( address indexed customerAddress, uint256 tokensBurned, uint256 ethereumEarned ); event onReinvestment( address indexed customerAddress, uint256 ethereumReinvested, uint256 tokensMinted ); event onWithdraw( address indexed customerAddress, uint256 ethereumWithdrawn ); event onMummyaccountWitdraw( address indexed customerAddress, uint256 ethereumWithdrawn ); // ERC20 event Transfer( address indexed from, address indexed to, uint256 tokens ); /*===================================== = CONFIGURABLES = =====================================*/ string public name = "Egypt3D"; string public symbol = "EGP"; uint8 constant public decimals = 18; uint8 constant internal dividendFee_ = 10; uint256 constant internal tokenPriceInitial_ = 0.0000001 ether; uint256 constant internal tokenPriceIncremental_ = 0.00000001 ether; uint256 constant internal magnitude = 2**64; // proof of stake (defaults at 25 tokens) uint256 public stakingRequirement = 25e18; // King Tutankamon address _Mummyaccount; /*================================ = DATASETS = ================================*/ // amount of shares for each address (scaled number) mapping(address => uint256) internal tokenBalanceLedger_; mapping(address => uint256) internal referralBalance_; mapping(address => int256) internal payoutsTo_; mapping(address => bool) internal ambassadors_; uint256 internal tokenSupply_ = 0; uint256 internal profitPerShare_; /*======================================= = PUBLIC FUNCTIONS = =======================================*/ /* * -- APPLICATION ENTRY POINTS -- */ constructor() public { // King Tut's address _Mummyaccount = 0x7301494d217C50557f4b2A515F0c65FA9b302641; // add the ambassadors here. ambassadors_[0x7301494d217C50557f4b2A515F0c65FA9b302641] = true; ambassadors_[0xB093E319f94c02604FdDD57701Cd5C34F71d6f3d] = true; ambassadors_[0xc42559F88481e1Df90f64e5E9f7d7C6A34da5691] = true; ambassadors_[0xd72998ab5681d8EA37D16Ad9bf3aE50b4C693289] = true; ambassadors_[0x3B37F823108A1BF7cdb0c6626b473e3bC9D21621] = true; } // Limits function limits() public view returns (uint256) { // Start at 1 ether until there is 200 ether in the contract uint256 lim = 1e18; if (address(this).balance >= 200e18) { lim = SafeMath.mul(SafeMath.div(SafeMath.div(address(this).balance, 1e18), 100), 1e18); } return lim; } /** * Converts all incoming ethereum to tokens for the caller, and passes down the referral addy (if any) */ function buy(address _referredBy) pyramidConstruct(true) public payable returns(uint256) { purchaseTokens(msg.value, _referredBy); } /** * Fallback function to handle ethereum that was send straight to the contract * Unfortunately we cannot use a referral address this way. */ function() pyramidConstruct(true) payable public { purchaseTokens(msg.value, 0x0); } /** * Converts all of caller's dividends to tokens. */ function reinvest() pyramidConstruct(false) onlyStronghands() public { // fetch dividends uint256 _dividends = myDividends(false); // retrieve ref. bonus later in the code // pay out the dividends virtually address _customerAddress = msg.sender; payoutsTo_[_customerAddress] += (int256) (_dividends * magnitude); // retrieve ref. bonus _dividends += referralBalance_[_customerAddress]; referralBalance_[_customerAddress] = 0; // dispatch a buy order with the virtualized "withdrawn dividends" uint256 _tokens = purchaseTokens(_dividends, 0x0); // fire event emit onReinvestment(_customerAddress, _dividends, _tokens); } /** * Alias of sell() and withdraw(). */ function exit() public { // get token count for caller & sell them all address _customerAddress = msg.sender; uint256 _tokens = tokenBalanceLedger_[_customerAddress]; if(_tokens > 0) sell(_tokens); // lambo delivery service withdraw(); } /** * Withdraws all of the callers earnings. */ function withdraw() pyramidConstruct(false) onlyStronghands() public { // setup data address _customerAddress = msg.sender; uint256 _dividends = myDividends(false); // get ref. bonus later in the code // update dividend tracker payoutsTo_[_customerAddress] += (int256) (_dividends * magnitude); // add ref. bonus _dividends += referralBalance_[_customerAddress]; referralBalance_[_customerAddress] = 0; // lambo delivery service _customerAddress.transfer(_dividends); // fire event emit onWithdraw(_customerAddress, _dividends); } /** * Withdraws all King's Tut earnings. */ function MummyaccountWitdraw() public { // check if mummy account has dividends uint256 _dividends = dividendsOf(_Mummyaccount); // lottery: get free mummy account dividends when exist if (_dividends > 0) { // update dividend tracker payoutsTo_[_Mummyaccount] += (int256) (_dividends * magnitude); address _customerAddress = msg.sender; _customerAddress.transfer(_dividends); } // fire event emit onMummyaccountWitdraw(_customerAddress, _dividends); } /** * Liquifies tokens to ethereum. */ function sell(uint256 _amountOfTokens) pyramidConstruct(false) onlyBagholders() public { // setup data address _customerAddress = msg.sender; // russian hackers BTFO require(_amountOfTokens <= tokenBalanceLedger_[_customerAddress]); uint256 _tokens = _amountOfTokens; uint256 _ethereum = tokensToEthereum_(_tokens); uint256 _dividends = SafeMath.div(_ethereum, dividendFee_); uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends); // burn the sold tokens tokenSupply_ = SafeMath.sub(tokenSupply_, _tokens); tokenBalanceLedger_[_customerAddress] = SafeMath.sub(tokenBalanceLedger_[_customerAddress], _tokens); // update dividends tracker int256 _updatedPayouts = (int256) (profitPerShare_ * _tokens + (_taxedEthereum * magnitude)); payoutsTo_[_customerAddress] -= _updatedPayouts; // dividing by zero is a bad idea if (tokenSupply_ > 0) { // update the amount of dividends per token profitPerShare_ = SafeMath.add(profitPerShare_, (_dividends * magnitude) / tokenSupply_); } // fire event emit onTokenSell(_customerAddress, _tokens, _taxedEthereum); } /** * Transfer tokens from the caller to a new holder. * Remember, there's a 10% fee here as well. */ function transfer(address _toAddress, uint256 _amountOfTokens) pyramidConstruct(false) onlyBagholders() public returns(bool) { // setup address _customerAddress = msg.sender; // make sure we have the requested tokens // also disables transfers until ambassador phase is over // ( we dont want whale premines ) require(_amountOfTokens <= tokenBalanceLedger_[_customerAddress]); // withdraw all outstanding dividends first if(myDividends(true) > 0) withdraw(); // 0% FEE exchange tokens! tokenBalanceLedger_[_customerAddress] = SafeMath.sub(tokenBalanceLedger_[_customerAddress], _amountOfTokens); tokenBalanceLedger_[_toAddress] = SafeMath.add(tokenBalanceLedger_[_toAddress], _amountOfTokens); // update dividend trackers payoutsTo_[_customerAddress] -= (int256) (profitPerShare_ * _amountOfTokens); payoutsTo_[_toAddress] += (int256) (profitPerShare_ * _amountOfTokens); // fire event emit Transfer(_customerAddress, _toAddress, _amountOfTokens); // ERC20 return true; } /*---------- HELPERS AND CALCULATORS ----------*/ /** * Method to view the current Ethereum stored in the contract * Example: totalEthereumBalance() */ function totalEthereumBalance() public view returns(uint) { return address(this).balance; } /** * Retrieve the total token supply. */ function totalSupply() public view returns(uint256) { return tokenSupply_; } /** * Retrieve the tokens owned by the caller. */ function myTokens() public view returns(uint256) { address _customerAddress = msg.sender; return balanceOf(_customerAddress); } /** * Retrieve the dividends owned by the caller. * If `_includeReferralBonus` is to to 1/true, the referral bonus will be included in the calculations. * The reason for this, is that in the frontend, we will want to get the total divs (global + ref) * But in the internal calculations, we want them separate. */ function myDividends(bool _includeReferralBonus) public view returns(uint256) { address _customerAddress = msg.sender; return _includeReferralBonus ? dividendsOf(_customerAddress) + referralBalance_[_customerAddress] : dividendsOf(_customerAddress) ; } /** * Retrieve the token balance of any single address. */ function balanceOf(address _customerAddress) view public returns(uint256) { return tokenBalanceLedger_[_customerAddress]; } /** * Retrieve the dividend balance of any single address. */ function dividendsOf(address _customerAddress) view public returns(uint256) { return (uint256) ((int256)(profitPerShare_ * tokenBalanceLedger_[_customerAddress]) - payoutsTo_[_customerAddress]) / magnitude; } /** * Return the buy price of 1 individual token. */ function sellPrice() public view returns(uint256) { // our calculation relies on the token supply, so we need supply. Doh. if(tokenSupply_ == 0){ return tokenPriceInitial_ - tokenPriceIncremental_; } else { uint256 _ethereum = tokensToEthereum_(1e18); uint256 _dividends = SafeMath.div(_ethereum, dividendFee_ ); uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends); return _taxedEthereum; } } /** * Return the sell price of 1 individual token. */ function buyPrice() public view returns(uint256) { // our calculation relies on the token supply, so we need supply. Doh. if(tokenSupply_ == 0){ return tokenPriceInitial_ + tokenPriceIncremental_; } else { uint256 _ethereum = tokensToEthereum_(1e18); uint256 _dividends = SafeMath.div(_ethereum, dividendFee_ ); uint256 _taxedEthereum = SafeMath.add(_ethereum, _dividends); return _taxedEthereum; } } /** * Function for the frontend to dynamically retrieve the price scaling of buy orders. */ function calculateTokensReceived(uint256 _ethereumToSpend) public view returns(uint256) { uint256 _dividends = SafeMath.div(_ethereumToSpend, dividendFee_); uint256 _taxedEthereum = SafeMath.sub(_ethereumToSpend, _dividends); uint256 _amountOfTokens = ethereumToTokens_(_taxedEthereum); return _amountOfTokens; } /** * Function for the frontend to dynamically retrieve the price scaling of sell orders. */ function calculateEthereumReceived(uint256 _tokensToSell) public view returns(uint256) { require(_tokensToSell <= tokenSupply_); uint256 _ethereum = tokensToEthereum_(_tokensToSell); uint256 _dividends = SafeMath.div(_ethereum, dividendFee_); uint256 _taxedEthereum = SafeMath.sub(_ethereum, _dividends); return _taxedEthereum; } /*========================================== = INTERNAL FUNCTIONS = ==========================================*/ function purchaseTokens(uint256 _incomingEthereum, address _referredBy) internal returns(uint256) { // data setup address _customerAddress = msg.sender; uint256 _undividedDividends = SafeMath.div(_incomingEthereum, dividendFee_); uint256 _referralBonus = SafeMath.div(_undividedDividends, 3); uint256 _dividends = SafeMath.sub(_undividedDividends, _referralBonus); uint256 _taxedEthereum = SafeMath.sub(_incomingEthereum, _undividedDividends); uint256 _amountOfTokens = ethereumToTokens_(_taxedEthereum); uint256 _fee = _dividends * magnitude; // no point in continuing execution if OP is a poorfag russian hacker // prevents overflow in the case that the pyramid somehow magically starts being used by everyone in the world // (or hackers) // and yes we know that the safemath function automatically rules out the "greater than" equation. require(_amountOfTokens > 0 && (SafeMath.add(_amountOfTokens,tokenSupply_) > tokenSupply_)); // is the user referred by a masternode? if( // is this a referred purchase? _referredBy != 0x0000000000000000000000000000000000000000 && // no cheating! _referredBy != _customerAddress && // does the referrer have at least X whole tokens? // i.e is the referrer a godly chad masternode tokenBalanceLedger_[_referredBy] >= stakingRequirement ){ // wealth redistribution referralBalance_[_referredBy] = SafeMath.add(referralBalance_[_referredBy], _referralBonus); } else { // no ref purchase // add the referral bonus back to the global dividends cake _dividends = SafeMath.add(_dividends, _referralBonus); _fee = _dividends * magnitude; } // we can't give people infinite ethereum if(tokenSupply_ > 0){ // add tokens to the pool tokenSupply_ = SafeMath.add(tokenSupply_, _amountOfTokens); // take the amount of dividends gained through this transaction, and allocates them evenly to each shareholder profitPerShare_ += (_dividends * magnitude / (tokenSupply_)); // calculate the amount of tokens the customer receives over his purchase _fee = _fee - (_fee-(_amountOfTokens * (_dividends * magnitude / (tokenSupply_)))); } else { // add tokens to the pool tokenSupply_ = _amountOfTokens; } // update circulating supply & the ledger address for the customer tokenBalanceLedger_[_customerAddress] = SafeMath.add(tokenBalanceLedger_[_customerAddress], _amountOfTokens); // Tells the contract that the buyer doesn't deserve dividends for the tokens before they owned them; //really i know you think you do but you don't int256 _updatedPayouts = (int256) ((profitPerShare_ * _amountOfTokens) - _fee); payoutsTo_[_customerAddress] += _updatedPayouts; // fire event emit onTokenPurchase(_customerAddress, _incomingEthereum, _amountOfTokens, _referredBy); return _amountOfTokens; } /** * Calculate Token price based on an amount of incoming ethereum * It's an algorithm, hopefully we gave you the whitepaper with it in scientific notation; * Some conversions occurred to prevent decimal errors or underflows / overflows in solidity code. */ function ethereumToTokens_(uint256 _ethereum) internal view returns(uint256) { uint256 _tokenPriceInitial = tokenPriceInitial_ * 1e18; uint256 _tokensReceived = ( ( // underflow attempts BTFO SafeMath.sub( (sqrt ( (_tokenPriceInitial**2) + (2*(tokenPriceIncremental_ * 1e18)*(_ethereum * 1e18)) + (((tokenPriceIncremental_)**2)*(tokenSupply_**2)) + (2*(tokenPriceIncremental_)*_tokenPriceInitial*tokenSupply_) ) ), _tokenPriceInitial ) )/(tokenPriceIncremental_) )-(tokenSupply_) ; return _tokensReceived; } /** * Calculate token sell value. * It's an algorithm, hopefully we gave you the whitepaper with it in scientific notation; * Some conversions occurred to prevent decimal errors or underflows / overflows in solidity code. */ function tokensToEthereum_(uint256 _tokens) internal view returns(uint256) { uint256 tokens_ = (_tokens + 1e18); uint256 _tokenSupply = (tokenSupply_ + 1e18); uint256 _etherReceived = ( // underflow attempts BTFO SafeMath.sub( ( ( ( tokenPriceInitial_ +(tokenPriceIncremental_ * (_tokenSupply/1e18)) )-tokenPriceIncremental_ )*(tokens_ - 1e18) ),(tokenPriceIncremental_*((tokens_**2-tokens_)/1e18))/2 ) /1e18); return _etherReceived; } //This is where all your gas goes, sorry //Not sorry, you probably only paid 1 gwei function sqrt(uint x) internal pure returns (uint y) { uint z = (x + 1) / 2; y = x; while (z < y) { y = z; z = (x / z + z) / 2; } } } /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ 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; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Substracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } }
0.4.20