Contract Source Code:
File 1 of 1 : Gold
pragma solidity 0.4.25;
library SafeMath256 {
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) {
return a / b;
}
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 pow(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) return 0;
if (b == 0) return 1;
uint256 c = a ** b;
assert(c / (a ** (b - 1)) == a);
return c;
}
}
contract Ownable {
address public owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
function _validateAddress(address _addr) internal pure {
require(_addr != address(0), "invalid address");
}
constructor() public {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner, "not a contract owner");
_;
}
function transferOwnership(address newOwner) public onlyOwner {
_validateAddress(newOwner);
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
}
contract Controllable is Ownable {
mapping(address => bool) controllers;
modifier onlyController {
require(_isController(msg.sender), "no controller rights");
_;
}
function _isController(address _controller) internal view returns (bool) {
return controllers[_controller];
}
function _setControllers(address[] _controllers) internal {
for (uint256 i = 0; i < _controllers.length; i++) {
_validateAddress(_controllers[i]);
controllers[_controllers[i]] = true;
}
}
}
contract Upgradable is Controllable {
address[] internalDependencies;
address[] externalDependencies;
function getInternalDependencies() public view returns(address[]) {
return internalDependencies;
}
function getExternalDependencies() public view returns(address[]) {
return externalDependencies;
}
function setInternalDependencies(address[] _newDependencies) public onlyOwner {
for (uint256 i = 0; i < _newDependencies.length; i++) {
_validateAddress(_newDependencies[i]);
}
internalDependencies = _newDependencies;
}
function setExternalDependencies(address[] _newDependencies) public onlyOwner {
externalDependencies = _newDependencies;
_setControllers(_newDependencies);
}
}
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
);
}
contract ERC20 is IERC20 {
using SafeMath256 for uint256;
mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) _allowed;
uint256 _totalSupply;
string public name;
string public symbol;
uint8 public decimals;
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 transfer(address to, uint256 value) public returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function _validateAddress(address _addr) internal pure {
require(_addr != address(0), "invalid address");
}
function approve(address spender, uint256 value) public returns (bool) {
_validateAddress(spender);
_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 <= _allowed[from][msg.sender], "not enough allowed tokens");
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
return true;
}
function increaseAllowance(
address spender,
uint256 addedValue
)
public
returns (bool)
{
_validateAddress(spender);
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(addedValue);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
function decreaseAllowance(
address spender,
uint256 subtractedValue
)
public
returns (bool)
{
_validateAddress(spender);
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(subtractedValue);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
function _transfer(address from, address to, uint256 value) internal {
require(value <= _balances[from], "not enough tokens");
_validateAddress(to);
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
function _mint(address account, uint256 value) internal {
_validateAddress(account);
_totalSupply = _totalSupply.add(value);
_balances[account] = _balances[account].add(value);
emit Transfer(address(0), account, value);
}
function _burn(address account, uint256 value) internal {
_validateAddress(account);
require(value <= _balances[account], "not enough tokens to burn");
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
function _burnFrom(address account, uint256 value) internal {
require(value <= _allowed[account][msg.sender], "not enough allowed tokens to burn");
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(value);
_burn(account, value);
}
}
contract Gold is ERC20, Upgradable {
address[5] founders = [
0x23b3763f31F4da6B42F47927BCF66A221E8705Cd,
0x5CFF40372b96e133967d980F72812653163121fa,
0xE246C5Aa2D57878DA70779A75B12dCDFFd77aDBA,
0x950eEAf8ddbA1409dbD25aD16d50A867EEA75c3E,
0x87252E8F04F6c6bC4d2c690893addb7108aa8a5f
];
address foundation = 0x5Ff8957EF7e964E8072815211c9Fc3E7F820F1D4;
address NonsenseGames = 0x10208FB4Ef202BdC49803995b0A8CA185383bba4;
string constant WP_IPFS_HASH = "QmfR75tK12q2LpkU5dzYqykUUpYswSiewpCbDuwYhRb6M5";
constructor(address treasury) public {
name = "Dragonereum Gold";
symbol = "GOLD";
decimals = 18;
uint256 _foundersGold = 6000000 * 10**18; // 10%
uint256 _foundationGold = 6000000 * 10**18; // 10%
uint256 _NonsenseGamesGold = 3000000 * 10**18; // 5%
uint256 _gameAccountGold = 45000000 * 10**18; // 75%
uint256 _founderStake = _foundersGold.div(founders.length);
for (uint256 i = 0; i < founders.length; i++) {
_mint(founders[i], _founderStake);
}
_mint(foundation, _foundationGold);
_mint(NonsenseGames, _NonsenseGamesGold);
_mint(treasury, _gameAccountGold);
require(_totalSupply == 60000000 * 10**18, "wrong total supply");
}
function remoteTransfer(address _to, uint256 _value) external onlyController {
_transfer(tx.origin, _to, _value);
}
function burn(uint256 _value) external onlyController {
_burn(msg.sender, _value);
}
}