contract GNB is ERC20Interface, Owned, SafeMath {
    string public symbol;
    string public  name;
    uint8 public decimals;
    uint public _totalSupply;
    uint public startTime;

    address addr_1	= 0x8bEBCF149caa5E65E8657510b4c54EF353E5C9E8; // Private Sale
    address addr_2	= 0x1e96d03E6e2629e9D4Cb528Fb1BC316B797f140E; // Public Sale
	address addr_3	= 0x362f231EC28B281551887a72F6CC7B17605DA3Ef; // Marketing
	address addr_4	= 0xa2e1600A406de65c5f046d06494485ed1F82cb73; // R&D
	address addr_5	= 0x9e0fe45998c2ac97CCf754fcc921383FD4AfCf87; // Operations
	address addr_6	= 0xaAA36430b0E61Ef025bb8be9D2F80817Ff7f6E65; // FoundingTeam
	address addr_7	= 0x730618f31548DDD136C710115EbfD9AfFB79D132; // GNB Alliance
	address addr_8	= 0x565537a55D154a02Ad2d5745Fb7Afba71E6fD8b1; // Reserve

    mapping(address => uint) balances;
    mapping(address => mapping(address => uint)) allowed;
    mapping(address => int8) public blacklist;

    // ------------------------------------------------------------------------
    // Constructor
    // ------------------------------------------------------------------------
    constructor() public {
        symbol = "GNB";
        name = "Game Network Blockchain";
        decimals = 18;
        _totalSupply = 1000000000000000000000000000;
        
        balances[addr_1] = 75000000000000000000000000; // Private Sale
        emit Transfer(address(0), addr_1, balances[addr_1]);
       	
        balances[addr_2] = 50000000000000000000000000; // Public Sale
        emit Transfer(address(0), addr_2, balances[addr_2]);
        
        balances[addr_3] = 205000000000000000000000000; // Marketing
        emit Transfer(address(0), addr_3, balances[addr_3]);
        
        balances[addr_4] = 175000000000000000000000000; // R&D
        emit Transfer(address(0), addr_4, balances[addr_4]);
      	
        balances[addr_5] = 150000000000000000000000000; // Operations
        emit Transfer(address(0), addr_5, balances[addr_5]);
 	
        balances[addr_6] = 105000000000000000000000000; // FoundingTeam
        emit Transfer(address(0), addr_6, balances[addr_6]);
    
        balances[addr_7] = 135000000000000000000000000; // GNB Alliance
        emit Transfer(address(0), addr_7, balances[addr_7]);
       	 
        balances[addr_8] = 105000000000000000000000000; // Reserve
        emit Transfer(address(0), addr_8, balances[addr_8]);
        
    }
    
    function now_() public constant returns (uint){
        return now;
    }

    // ------------------------------------------------------------------------
    // Total supply
    // ------------------------------------------------------------------------
    function totalSupply() public constant returns (uint) {
        return _totalSupply  - balances[address(0)];
    }


    // ------------------------------------------------------------------------
    // 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) {

        
        
        if (blacklist[msg.sender] > 0) { // Accounts in the blacklist can not be withdrawn
			emit RejectedPaymentFromBlacklistedAddr(msg.sender, to, tokens);
			return false;
		} else if (blacklist[to] > 0) { // Accounts in the blacklist can not be withdrawn
			emit RejectedPaymentToBlacklistedAddr(msg.sender, to, tokens);
			return false;
		} else {
			balances[msg.sender] = safeSub(balances[msg.sender], tokens);
            balances[to] = safeAdd(balances[to], 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) {
        balances[from] = safeSub(balances[from], tokens);
        allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
        balances[to] = safeAdd(balances[to], 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];
    }


    // ------------------------------------------------------------------------
    // Token owner can approve for spender to transferFrom(...) tokens
    // from the token owner's account. The spender contract function
    // receiveApproval(...) is then executed
    // ------------------------------------------------------------------------
    function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
        return true;
    }


    // ------------------------------------------------------------------------
    // Don't accept ETH
    // ------------------------------------------------------------------------
    function () public payable {
        revert();
    }

    // ------------------------------------------------------------------------
    // Owner can transfer out any accidentally sent ERC20 tokens
    // ------------------------------------------------------------------------
    function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
        return ERC20Interface(tokenAddress).transfer(owner, tokens);
    }
    
    // ------------------------------------------------------------------------
    // Owner can add an increase total supply.
    // ------------------------------------------------------------------------
	function totalSupplyIncrease(uint256 _supply) public onlyOwner{
		_totalSupply = _totalSupply + _supply;
		balances[msg.sender] = balances[msg.sender] + _supply;
		emit Transfer(address(0), msg.sender, _supply);
	}
	
	// ------------------------------------------------------------------------
    // Owner can add blacklist the wallet address.
    // ------------------------------------------------------------------------
	function blacklisting(address _addr) public onlyOwner{
		blacklist[_addr] = 1;
		emit Blacklisted(_addr);
	}
	
	
	// ------------------------------------------------------------------------
    // Owner can delete from blacklist the wallet address.
    // ------------------------------------------------------------------------
	function deleteFromBlacklist(address _addr) public onlyOwner{
		blacklist[_addr] = -1;
		emit DeleteFromBlacklist(_addr);
	}
	
	function _burn(address account, uint256 amount) external onlyOwner {
        require(amount != 0);
        require(amount <= balances[account]);
        _totalSupply = safeSub(_totalSupply, amount);
        balances[account] = safeSub(balances[account], amount);
        emit Transfer(account, address(0), amount);
      }
	
}
// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ----------------------------------------------------------------------------
function deleteFromBlacklist(address _addr) public onlyOwner{
		blacklist[_addr] = -1;
		emit DeleteFromBlacklist(_addr);
	}
// ------------------------------------------------------------------------
// Owner can delete from blacklist the wallet address.
// ------------------------------------------------------------------------