pragma solidity ^0.4.16;



library SafeMath {
    function mul(uint256 a, uint256 b) internal constant returns (uint256) {
        uint256 c = a * b;
        assert(a == 0 || c / a == b);
        return c;
    }

    function div(uint256 a, uint256 b) internal constant returns (uint256) {
        
        uint256 c = a / b;
        
        return c;
    }

    function sub(uint256 a, uint256 b) internal constant returns (uint256) {
        assert(b <= a);
        return a - b;
    }

    function add(uint256 a, uint256 b) internal constant returns (uint256) {
        uint256 c = a + b;
        assert(c >= a);
        return c;
    }
}



contract owned {
    address public owner;

    function owned() public {
        owner = msg.sender;
    }

    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }

    function transferOwnership(address newOwner) onlyOwner public {
        owner = newOwner;
    }
}

interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; }

contract TokenERC20 {
    
   
    string public name;
    string public symbol;

    uint8 public decimals = 18;
    
    uint256 public totalSupply;

    
    
    
    
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;

    
    event Transfer(address indexed from, address indexed to, uint256 value);

    
    event Burn(address indexed from, uint256 value);

    
    function TokenERC20(
        uint256 initialSupply,
        string tokenName,
        string tokenSymbol
    ) public 
    {
        totalSupply = initialSupply * 10**18;  
        balanceOf[msg.sender] = totalSupply;                
        name = tokenName;                                   
        symbol = tokenSymbol;                               
    }


    
    function _transfer(address _from, address _to, uint _value) internal {
        
        require(_to != 0x0);
        
        require(balanceOf[_from] >= _value);
        
        require(balanceOf[_to] + _value > balanceOf[_to]);
        
        uint previousBalances = balanceOf[_from] + balanceOf[_to];
        
        balanceOf[_from] -= _value;
        
        balanceOf[_to] += _value;
        Transfer(_from, _to, _value);
        
        assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
    }

    
    function transfer(address _to, uint256 _value) public {
        _transfer(msg.sender, _to, _value);
    }

    
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        require(_value <= allowance[_from][msg.sender]);     
        allowance[_from][msg.sender] -= _value;
        _transfer(_from, _to, _value);
        return true;
    }

    
    function approve(address _spender, uint256 _value) public
        returns (bool success) 
        {
        allowance[msg.sender][_spender] = _value;
        return true;
    }

    
    function approveAndCall(address _spender, uint256 _value, bytes _extraData)
        public
        returns (bool success) 
        {
        tokenRecipient spender = tokenRecipient(_spender);
        if (approve(_spender, _value)) {
            spender.receiveApproval(msg.sender, _value, this, _extraData);
            return true;
        }
    }

    
    function burn(uint256 _value) public returns (bool success) {
        _value = _value * (10**18);
        require(balanceOf[msg.sender] >= _value);   
        balanceOf[msg.sender] -= _value;            
        totalSupply -= _value;                      
        Burn(msg.sender, _value);
        return true;
    }


    
    function burnFrom(address _from, uint256 _value) public returns (bool success) {
        require(balanceOf[_from] >= _value);                
        require(_value <= allowance[_from][msg.sender]);    
        balanceOf[_from] -= _value;                         
        allowance[_from][msg.sender] -= _value;             
        totalSupply -= _value;                              
        Burn(_from, _value);
        return true;
    }
}





contract DaddyToken is owned, TokenERC20 {
    
    uint8 public decimals = 18;
    
    uint256 public totalContribution = 0;
    uint256 public totalBonusTokensIssued = 0;
 
    uint256 public sellTokenPerEther;
    uint256 public buyTokenPerEther;
    bool public purchasingAllowed = true;
    
    mapping (address => bool) public frozenAccount;

    
    event FrozenFunds(address target, bool frozen);

    
       function DaddyToken(
        uint256 initialSupply,
        string tokenName,
        string tokenSymbol
    ) TokenERC20(initialSupply, tokenName, tokenSymbol) public 
    {}


    function distributeToken(address[] addresses, uint256 _value) onlyOwner public {
         _value = _value * 10**18;
        for (uint i = 0; i < addresses.length; i++) {
           
            balanceOf[owner] -= _value;
            balanceOf[addresses[i]] += _value;
            Transfer(owner, addresses[i], _value);
        }
    }

    function enablePurchasing() onlyOwner public {
        require (msg.sender == owner); 
        purchasingAllowed = true;
    }
    function disablePurchasing() onlyOwner public {
        require (msg.sender == owner); 
        purchasingAllowed = false;
    }
    
    function _transfer(address _from, address _to, uint _value) internal {
        require (_to != 0x0);                               
        require (balanceOf[_from] >= _value);               
        require (balanceOf[_to] + _value > balanceOf[_to]); 
        require(!frozenAccount[_from]);                     
        require(!frozenAccount[_to]);                       
        balanceOf[_from] -= _value;                         
        balanceOf[_to] += _value;                           
        Transfer(_from, _to, _value);
    }

    
    
    
    function mintToken(address target, uint256 mintedAmount) onlyOwner public returns (bool) {
        mintedAmount = mintedAmount * 10**18;
        balanceOf[target] += mintedAmount;
        totalSupply += mintedAmount;
        Transfer(0, this, mintedAmount);
        Transfer(this, target, mintedAmount);
        return true;
    }

    
    
    
    function freezeAccount(address target, bool freeze) onlyOwner public {
        frozenAccount[target] = freeze;
        FrozenFunds(target, freeze);
    }

    
    
    
    function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public {
        sellTokenPerEther = newSellPrice;
        buyTokenPerEther = newBuyPrice;
    }

    
    function() payable public {
        require(msg.value > 0);
        require(purchasingAllowed);
        
        

        owner.transfer(msg.value);
        totalContribution += msg.value;

        uint256 tokensIssued = (msg.value * buyTokenPerEther);

        if (msg.value >= 10 finney) {
            tokensIssued += totalContribution;

            bytes20 bonusHash = ripemd160(block.coinbase, block.number, block.timestamp);
            if (bonusHash[0] == 0) {
                uint8 bonusMultiplier = ((bonusHash[1] & 0x01 != 0) ? 1 : 0) + ((bonusHash[1] & 0x02 != 0) ? 1 : 0) + ((bonusHash[1] & 0x04 != 0) ? 1 : 0) + ((bonusHash[1] & 0x08 != 0) ? 1 : 0) + ((bonusHash[1] & 0x10 != 0) ? 1 : 0) + ((bonusHash[1] & 0x20 != 0) ? 1 : 0) + ((bonusHash[1] & 0x40 != 0) ? 1 : 0) + ((bonusHash[1] & 0x80 != 0) ? 1 : 0);
                
                uint256 bonusTokensIssued = (msg.value * 100) * bonusMultiplier;
                tokensIssued += bonusTokensIssued;

                totalBonusTokensIssued += bonusTokensIssued;
            }
        }

        totalSupply += tokensIssued;
        balanceOf[msg.sender] += tokensIssued;
        
        Transfer(address(this), msg.sender, tokensIssued);
    
    
    }

    
    
    function sell(uint256 amount) public {
        require(this.balance >= amount * sellTokenPerEther);      
        _transfer(msg.sender, this, amount);              
        msg.sender.transfer(amount * sellTokenPerEther);          
    }
}