pragma solidity 0.4.25;
// ----------------------------------------------------------------------------
// Safe maths
// ----------------------------------------------------------------------------
library SafeMath {
function add(uint a, uint b) internal pure returns (uint c) {
c = a + b;
require(c >= a);
}
function sub(uint a, uint b) internal pure returns (uint c) {
require(b <= a);
c = a - b;
}
function mul(uint a, uint b) internal pure returns (uint c) {
c = a * b;
require(a == 0 || c / a == b);
}
function div(uint a, uint b) internal pure returns (uint c) {
require(b > 0);
c = a / b;
}
}
// ----------------------------------------------------------------------------
// ERC Token Standard #20 Interface
// ----------------------------------------------------------------------------
contract ERC20Interface {
function totalSupply() public constant returns (uint);
function balanceOf(address tokenOwner) public constant returns (uint balance);
function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
function transfer(address to, uint tokens) public returns (bool success);
function approve(address spender, uint tokens) public returns (bool success);
function transferFrom(address from, address to, uint tokens) public returns (bool success);
event Transfer(address indexed from, address indexed to, uint tokens);
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}
// ----------------------------------------------------------------------------
// Owned contract
// ----------------------------------------------------------------------------
contract Owned {
address public owner;
address public newOwner;
event OwnershipTransferred(address indexed _from, address indexed _to);
modifier onlyOwner {
require(msg.sender == owner);
_;
}
}
/**
* @title ArconexICO
* @dev ArconexICO accepting contributions only within a time frame.
*/
contract ArconexICO is ERC20Interface, Owned {
using SafeMath for uint256;
string public symbol;
string public name;
uint8 public decimals;
uint256 public fundsRaised;
uint256 public reserveTokens;
string public TokenPrice;
uint256 public saleTokens;
uint internal _totalSupply;
uint internal _totalRemaining;
address public wallet;
bool internal distributionFinished;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
mapping(address => bool) zeroInvestors;
event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
modifier canDistribut {
require(!distributionFinished);
_;
}
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor (address _owner, address _wallet) public {
symbol = "ACX";
name = " Arconex";
decimals = 18;
owner = _owner;
wallet = _wallet;
_totalSupply = 200000000; // 200 M
_allocateTokens();
// send the reserve tokens to the creator of the contract
balances[owner] = reserveTokens;
emit Transfer(address(0),owner, reserveTokens);
// make total remaining equal to saleTokens
_totalRemaining = saleTokens;
distributionFinished = false;
}
function _allocateTokens() internal {
reserveTokens = (_totalSupply.mul(5)).div(100) *10 **uint(decimals); // 5% of totalSupply
saleTokens = (_totalSupply.mul(95)).div(100) *10 **uint(decimals); // 95% of totalSupply
TokenPrice = "0.0000004 ETH";
}
function () external payable {
buyTokens(msg.sender);
}
function buyTokens(address _beneficiary) public payable canDistribut {
uint256 weiAmount = msg.value;
_preValidatePurchase(_beneficiary, weiAmount);
uint256 tokens = _getTokenAmount(_beneficiary, weiAmount);
fundsRaised = fundsRaised.add(weiAmount);
_processPurchase(_beneficiary, tokens);
emit TokenPurchase(this, _beneficiary, weiAmount, tokens);
_forwardFunds(msg.value);
}
function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) view internal{
require(_beneficiary != address(0));
if(_weiAmount == 0){
require(!(zeroInvestors[_beneficiary]));
}
}
function _getTokenAmount(address _beneficiary, uint256 _weiAmount) internal returns (uint256) {
if(_weiAmount == 0){
zeroInvestors[_beneficiary] = true;
return 50e18;
}
else{
uint256 rate = 2500000; //per wei
return _weiAmount.mul(rate);
}
}
function _deliverTokens(address _beneficiary, uint256 _tokenAmount) internal {
if(_totalRemaining != 0 && _totalRemaining >= _tokenAmount) {
balances[_beneficiary] = balances[_beneficiary].add(_tokenAmount);
emit Transfer(address(0),_beneficiary, _tokenAmount);
_totalRemaining = _totalRemaining.sub(_tokenAmount);
}
if(_totalRemaining <= 0) {
distributionFinished = true;
}
}
function _processPurchase(address _beneficiary, uint256 _tokenAmount) internal {
_deliverTokens(_beneficiary, _tokenAmount);
}
function _forwardFunds(uint256 _amount) internal {
wallet.transfer(_amount);
}
/* ERC20Interface function's implementation */
function totalSupply() public constant returns (uint){
return _totalSupply* 10**uint(decimals);
}
// ------------------------------------------------------------------------
// Get the token balance for account `tokenOwner`
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public constant returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to `to` account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
// prevent transfer to 0x0, use burn instead
require(to != 0x0);
require(balances[msg.sender] >= tokens );
require(balances[to] + tokens >= balances[to]);
balances[msg.sender] = balances[msg.sender].sub(tokens);
balances[to] = balances[to].add(tokens);
emit Transfer(msg.sender,to,tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for `spender` to transferFrom(...) `tokens`
// from the token owner's account
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success){
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender,spender,tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer `tokens` from the `from` account to the `to` account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the `from` account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success){
require(tokens <= allowed[from][msg.sender]); //check allowance
require(balances[from] >= tokens);
balances[from] = balances[from].sub(tokens);
balances[to] = balances[to].add(tokens);
allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
emit Transfer(from,to,tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
return allowed[tokenOwner][spender];
}
}
{
"compilationTarget": {
"ArconexICO.sol": "ArconexICO"
},
"evmVersion": "byzantium",
"libraries": {},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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