P-assToken.sol

pragma solidity ^0.4.11;

contract PassToken {
    string public constant name = "PassToken";
    string public constant symbol = "PASS";

    // 1 ether = 50 PAC
    uint public constant price = 50; 
    uint public initial_supply = 12000000;
    // limit 2 million for sale 
    // 10 million will remain
    
    // give a balance uint for PASS
    mapping(address => uint) balance;
    
    address admin;

    function PassCoin(){
        admin = msg.sender;
    }
    
    modifier admin_only(){
        require(admin == msg.sender);
        _;
    }
    
    function PassToken(){
        balance[msg.sender] = initial_supply;
    }
    
    event coinSold(address, uint);
    
    function coinSale() payable{
        require(msg.value >= 1 ether);
        //require(balance[admin] > msg.value * 50);
        msg.value; 
        balance[msg.sender] * price;
        coinSold(msg.sender, msg.value);
        
    }
    
}