Contract Name:
HeroChainToken
Contract Source Code:
File 1 of 1 : HeroChainToken
pragma solidity ^0.4.19;
//*************** SafeMath ***************
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b > 0);
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;
}
}
//*************** Ownable
contract Ownable {
address public owner;
function Ownable() public {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
function transferOwnership(address newOwner)public onlyOwner {
if (newOwner != address(0)) {
owner = newOwner;
}
}
}
//************* ERC20
contract ERC20 {
uint256 public totalSupply;
function balanceOf(address who)public constant returns (uint256);
function transfer(address to, uint256 value)public returns (bool);
function transferFrom(address from, address to, uint256 value)public returns (bool);
function allowance(address owner, address spender)public constant returns (uint256);
function approve(address spender, uint256 value)public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event PreICOTokenPushed(address indexed buyer, uint256 amount);
event TokenPurchase(address indexed purchaser, uint256 value,uint256 amount);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
//*************HeroChain Token
contract HeroChainToken is ERC20,Ownable {
using SafeMath for uint256;
// Token Info.
string public name;
string public symbol;
uint8 public constant decimals = 18;
address[] private walletArr;
uint walletIdx = 0;
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) allowed;
event TokenPurchase(address indexed purchaser, uint256 value,uint256 amount);
event FundTransfer(address fundWallet, uint256 amount);
function HeroChainToken(
uint256 _totalSupply,
string _name,
string _symbol,
address _wallet1
) public {
require(_wallet1 != 0x0);
balanceOf[msg.sender] = _totalSupply;
totalSupply = _totalSupply;
name = _name;
symbol = _symbol;
walletArr.push(_wallet1);
}
function balanceOf(address _who)public constant returns (uint256 balance) {
return balanceOf[_who];
}
function _transferFrom(address _from, address _to, uint256 _value) internal {
require(_to != 0x0);
require(balanceOf[_from] >= _value);
require(balanceOf[_to] + _value >= balanceOf[_to]);
balanceOf[_from] = balanceOf[_from].sub(_value);
balanceOf[_to] = balanceOf[_to].add(_value);
Transfer(_from, _to, _value);
}
function transfer(address _to, uint256 _value) public returns (bool){
_transferFrom(msg.sender,_to,_value);
return true;
}
function push(address _buyer, uint256 _amount) public onlyOwner {
uint256 val=_amount*(10**18);
_transferFrom(msg.sender,_buyer,val);
PreICOTokenPushed(_buyer, val);
}
function ()public payable {
_tokenPurchase( msg.value);
}
function _tokenPurchase( uint256 _value) internal {
require(_value >= 0.1 ether);
address wallet = walletArr[walletIdx];
walletIdx = (walletIdx+1) % walletArr.length;
wallet.transfer(msg.value);
FundTransfer(wallet, msg.value);
}
function supply() internal constant returns (uint256) {
return balanceOf[owner];
}
function getCurrentTimestamp() internal view returns (uint256){
return now;
}
function allowance(address _owner, address _spender)public constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
function approve(address _spender, uint256 _value)public returns (bool) {
require((_value == 0) || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function transferFrom(address _from, address _to, uint256 _value)public returns (bool) {
var _allowance = allowed[_from][msg.sender];
require (_value <= _allowance);
_transferFrom(_from,_to,_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
Transfer(_from, _to, _value);
return true;
}
}