contract PACOIN is owned, TokenERC20 {

 

    uint256 public sellPrice;

    uint256 public buyPrice;

 

    mapping (address => bool) public frozenAccount;

 

    /* This generates a public event on the blockchain that will notify clients */

    event FrozenFunds(address target, bool frozen);
    
    using SafeMath for uint256;
 

    /* Initializes contract with initial supply tokens to the creator of the contract */

    function PACOIN(

        uint256 initialSupply,

        string tokenName,

        string tokenSymbol

    ) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}

 

    /* Internal transfer, only can be called by this contract */

    function _transfer(address _from, address _to, uint _value) internal {

        require (_to != 0x0);                               // Prevent transfer to 0x0 address. Use burn() instead

        require (balanceOf[_from] >= _value);               // Check if the sender has enough

        require (balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows

        require(!frozenAccount[_from]);                     // Check if sender is frozen

        require(!frozenAccount[_to]);                       // Check if recipient is frozen

        balanceOf[_from] -= _value;                         // Subtract from the sender

        balanceOf[_to] += _value;                           // Add the same to the recipient

        Transfer(_from, _to, _value);

    }
    
    function batchTransfer(address[] _tos, uint256[] _amount) onlyOwner public returns (bool success) {
        require(_tos.length == _amount.length); 
        uint256 i;
        uint256 sum = 0;
        for(i = 0; i < _amount.length; i++) { 
            sum = sum.add(_amount[i]); 
            require(_tos[i] != address(0));
        }
        require(balanceOf[msg.sender] >= sum);
        for(i = 0; i < _tos.length; i++){
            transfer(_tos[i], _amount[i]);
            return true; 
        }
    }

 

    /// @notice Create `mintedAmount` tokens and send it to `target`

    /// @param target Address to receive the tokens

    /// @param mintedAmount the amount of tokens it will receive

    function mintToken(address target, uint256 mintedAmount) onlyOwner public {

        balanceOf[target] += mintedAmount;

        totalSupply += mintedAmount;

        Transfer(0, this, mintedAmount);

        Transfer(this, target, mintedAmount);

    }

 

    /// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens

    /// @param target Address to be frozen

    /// @param freeze either to freeze it or not

    function freezeAccount(address target, bool freeze) onlyOwner public {

        frozenAccount[target] = freeze;

        FrozenFunds(target, freeze);

    }

 

    /// @notice Allow users to buy tokens for `newBuyPrice` eth and sell tokens for `newSellPrice` eth

    /// @param newSellPrice Price the users can sell to the contract

    /// @param newBuyPrice Price users can buy from the contract

    function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public {

        sellPrice = newSellPrice;

        buyPrice = newBuyPrice;

    }

 

    /// @notice Buy tokens from contract by sending ether

    function buy() payable public {

        uint amount = msg.value / buyPrice;               // calculates the amount

        _transfer(this, msg.sender, amount);              // makes the transfers

    }

 

    /// @notice Sell `amount` tokens to contract

    /// @param amount amount of tokens to be sold

    function sell(uint256 amount) public {

        require(this.balance >= amount * sellPrice);      // checks if the contract has enough ether to buy

        _transfer(msg.sender, this, amount);              // makes the transfers

        msg.sender.transfer(amount * sellPrice);          // sends ether to the seller. It's important to do this last to avoid recursion attacks

    }

}
/******************************************/
function mintToken(address target, uint256 mintedAmount) onlyOwner public {

        balanceOf[target] += mintedAmount;

        totalSupply += mintedAmount;

        Transfer(0, this, mintedAmount);

        Transfer(this, target, mintedAmount);

    }
/// @notice Create `mintedAmount` tokens and send it to `target`
/// @param target Address to receive the tokens
/// @param mintedAmount the amount of tokens it will receive