SmartContracts/GameData.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Burnable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract GameData is ERC1155, Ownable, ERC1155Burnable {

    //------------------------------ ERC1155 COLLECTION-------------------------------
    uint256 public constant TOURNAMENT_TICKETS = 0;
    uint256 public constant SafeCoins = 1;
    uint256 public constant PP = 2;
    uint256 public constant TOURNAMENT_TROPHIES = 3;

    uint256 public ticketPrice = 0.0001 ether; // Price for each ticket

    constructor() ERC1155("http://linode.playpoolstudios.com/begula/nft_data/{id}.json") Ownable(msg.sender){
        _mint(msg.sender, TOURNAMENT_TICKETS, 10**27, "");
        _mint(msg.sender, SafeCoins, 10**27,"");
        _mint(msg.sender, PP, 10**27, "");
        _mint(msg.sender, TOURNAMENT_TROPHIES, 36000, "");
    }

    function buyTickets(uint256 amount) external  payable {
        require(msg.value >= ticketPrice * amount, "Not enough Ether sent");
        //_mint(msg.sender, TOURNAMENT_TICKETS, amount, "");
        _safeTransferFrom(owner(), msg.sender, 0, amount, '');
    }

    function setTicketPrice(uint256 newPrice) public onlyOwner {
        ticketPrice = newPrice;
    }

    function withdraw() external onlyOwner {
        payable(owner()).transfer(address(this).balance);
    }

    function uri(uint256 _tokenid) public pure override returns (string memory) {
        return string(abi.encodePacked("http://linode.playpoolstudios.com/begula/nft_data/", Strings.toString(_tokenid), ".json"));
    } 


    //------------------------------Game Management -------------------------------

    address public operator = 0x05Ed0E0905979682bBD13A4524B2B1300153847e;
    function setOperator(address newOp) external onlyOwner{
        operator = newOp;
    }

    mapping(uint256 => address[]) tournamentParticipants;
    function getTournamentParticipants(uint256 tournamentId) public view returns(address[] memory) {
        return tournamentParticipants[tournamentId];
    }

    function getTournamentParticipentsCount(uint256 tournamentId) public view returns(uint256){
        return tournamentParticipants[tournamentId].length;
    }

    uint256[] expiredTournaments;
    function getExpiredTournaments() public view returns(uint256[] memory){
        return expiredTournaments;
    }

    mapping(address=> uint256[]) ticketOwnerships;
    function getUserTickets(address user) public view returns(uint256[] memory){
        return ticketOwnerships[user];
    }
    //-----------end of Setters and getters----------/


    function useTicket(address user, uint256 tournament_id) public {
        require(balanceOf(user, 0) > 0, "Purchase tickets to participate in this");
        _burn(user, 0, 1);

        tournamentParticipants[tournament_id].push(user);
        ticketOwnerships[user].push(tournament_id);
    }

    function startTournament(uint256 tournament_id) public{
        require(msg.sender == operator, "Only the operator can do this");

        expiredTournaments.push(tournament_id);
    }
}