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- pragma solidity ^0.4.16;
- /** This contract is build for nDEX - Next Generation Decentralize Exchange Ticker : NDX . Any one can use this code to make contract is
- not subject to copyright law */
- interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) external; }
- contract NDEX {
- // Public variables of the token
- string public name = "nDEX";
- string public symbol = "NDX";
- uint8 public decimals = 18;
- // 18 decimals is the strongly suggested default
- uint256 public totalSupply;
- uint256 public NdexSupply = 15000000000;
- uint256 public buyPrice = 10000000;
- address public creator;
- // This creates an array with all balances
- mapping (address => uint256) public balanceOf;
- mapping (address => mapping (address => uint256)) public allowance;
- // This generates a public event on the blockchain that will notify clients
- event Transfer(address indexed from, address indexed to, uint256 value);
- event FundTransfer(address backer, uint amount, bool isContribution);
- /**
- * Constrctor function
- *
- * Initializes contract with initial supply tokens to the creator of the contract
- */
- function NDEX() public {
- totalSupply = NdexSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
- balanceOf[msg.sender] = totalSupply; // Give NDX Mint the total created tokens
- creator = msg.sender;
- }
- /**
- * Internal transfer, only can be called by this contract
- */
- function _transfer(address _from, address _to, uint _value) internal {
- // Prevent transfer to 0x0 address. Use burn() instead
- require(_to != 0x0);
- // Check if the sender has enough
- require(balanceOf[_from] >= _value);
- // Check for overflows
- require(balanceOf[_to] + _value >= balanceOf[_to]);
- // Save this for an assertion in the future
- uint previousBalances = balanceOf[_from] + balanceOf[_to];
- // Subtract from the sender
- balanceOf[_from] -= _value;
- // Add the same to the recipient
- balanceOf[_to] += _value;
- emit Transfer(_from, _to, _value);
- // Asserts are used to use static analysis to find bugs in your code. They should never fail
- assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
- }
- /**
- * Transfer tokens
- *
- * Send `_value` tokens to `_to` from your account
- *
- * @param _to The address of the recipient
- * @param _value the amount to send
- */
- function transfer(address _to, uint256 _value) public {
- _transfer(msg.sender, _to, _value);
- }
- /// @notice Buy tokens from contract by sending ether
- function () payable internal {
- uint amount = msg.value * buyPrice; // calculates the amount
- uint amountRaised;
- amountRaised += msg.value; //many thanks bois, couldnt do it without r/me_irl
- require(balanceOf[creator] >= amount); // checks if it has enough to sell
- require(msg.value <= 10**17); // so any person who wants to put more then 0.1 ETH has time to think!
- balanceOf[msg.sender] += amount; // adds the amount to buyer's balance
- balanceOf[creator] -= amount; // sends ETH to NDXMint
- emit Transfer(creator, msg.sender, amount); // execute an event reflecting the change
- creator.transfer(amountRaised);
- }
- }
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