lottery.sol

pragma solidity ^0.4.17;

contract Lottery {              
    address public manager;     
    address[] public players;   
    
    function Lottery() public {
        manager = msg.sender;    
    }

    function enter() public payable {      
        require(msg.value > .0001 ether);   
        players.push(msg.sender);          
    }

    function random() private view returns (uint) {  
        return uint(keccak256(block.difficulty, now, players)); 
    }
                                                
    function pickWinner() public restricted {       
        uint index = random() % players.length;                                                    
        players[index].transfer(this.balance);                            
        players = new address[](0);               
    }   
        
    modifier restricted() {
        require(msg.sender == manager); 
        _;                              
    }
    
    function getPlayers() public view returns (address[]) {
        return players;
    }    
}