XOGames.sol

pragma solidity ^0.4.17;

import "./XOGameBoard.sol";

contract XOGames{
    address owner; // владелец контракта
    uint256 commission = 5; // комиссия за использование платформы 5% ;-)
    uint256 public numberOpenGames;
    
    // статусы игры
    enum StatusGame {
        GAME_EXPECTED, // игра готова к старту, ожидается второй игрок
        GAME_START // игра стартовала
    }
    
    // структура игры
    struct Game{
        address player1; // игрок 1, он инициирует игру
        uint256 rate;
        uint256 numGame;
        StatusGame statusGame; // статус игры
    }
    
    struct OpenGame{
        address addressGameBoard;
        uint256 rateInGame;
    }

    mapping(uint256 => OpenGame) public openGames;

    mapping(address => Game) public games; // игры
    
    // модификатор прав владельуа контракта
    modifier isOwner {
        require(owner == msg.sender);
        _;
    }
    
    event GameWait(address _address, uint256 _rate);
    
    function XOGames() public {
        owner = msg.sender;
        numberOpenGames = 0;
    }
    
    function setCommission(uint256 _commission) public isOwner returns(uint256){
        commission = _commission;
        return commission;
    }
    
    function createGame() public payable returns(XOGameBoard gameBoard){
        require(msg.value != 0);
        numberOpenGames++;
        gameBoard = (new XOGameBoard).value((msg.value - (msg.value * commission / 100)))(msg.sender);
        games[gameBoard].player1 = msg.sender;
        games[gameBoard].statusGame = StatusGame.GAME_EXPECTED;
        games[gameBoard].rate = msg.value;
        games[gameBoard].numGame = numberOpenGames;
        openGames[numberOpenGames].addressGameBoard = gameBoard;
        openGames[numberOpenGames].rateInGame = msg.value;
        emit GameWait(gameBoard, msg.value);
        return gameBoard;
    }
    
    function joinToGame(XOGameBoard gameBoard) public payable returns(bool){
        require(msg.sender != games[gameBoard].player1);
        require(games[gameBoard].statusGame != StatusGame.GAME_START);
        require(msg.value != 0);
        require(games[gameBoard].rate == msg.value);
        games[gameBoard].statusGame = StatusGame.GAME_START;
        gameBoard.setRate.value((msg.value - (msg.value * commission / 100)))(msg.sender);
        delete openGames[games[gameBoard].numGame];
        delete games[gameBoard];
        
        return true;
    }
    
    function sendBalance(address _address) public payable isOwner returns(bool){
        _address.transfer(address(this).balance);
    }
    
    // уничтожение контракта
    function kill() public isOwner {
        selfdestruct(owner);
    }
}