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LotteryContract.sol
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LotteryContract.sol
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
// Lottery Contract
contract lottery {
//Golbal veriables
address public manger ;
address payable[] public Lotterybuyers ;
constructor(){
manger=msg.sender;
}
//receive payable function for deposits
receive() payable external{
require(msg.value >= 1 ether,'Not Minimum Value');
require(msg.sender!= manger , 'Manger cant buy Tick');
Lotterybuyers.push(payable(msg.sender));
}
// showing balance
function getblance() view public returns(uint){
require(msg.sender==manger,'Not manger');
return address(this).balance;
}
// genreating Random Winner
function random() public view returns(uint){
return uint(keccak256(abi.encodePacked(block.difficulty,block.timestamp,Lotterybuyers.length)));
}
//Return Lotterybuyers All
function TotalNumberOfBuyer() public view returns(uint){
return Lotterybuyers.length;
}
// Winner selecting
function Winer() public {
require(msg.sender==manger);
require(Lotterybuyers.length>=3);
address payable Winner ;
uint r = random();
uint index = r % Lotterybuyers.length;
Winner = Lotterybuyers[index];
Winner.transfer(getblance());
}
// Transfer to Winner and clear
function ReloadLottery() public {
require(msg.sender==manger);
Lotterybuyers=new address payable[](0);
}
}