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pragma solidity >=0.4.21 <0.6.0;
contract TennisMatch {
address public owner;
uint8 public playerAScore = 0;
uint8 public playerAGamesWon = 0;
uint8 public playerBScore = 0;
uint8 public playerBGamesWon = 0;
constructor() public {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
function addPoints(uint8 player) public onlyOwner {
require(player <= 1);
uint8 newScore;
if (player == 0) {
playerAScore += playerAScore < 30 ? 15 : 10;
newScore = playerAScore;
} else {
playerBScore += playerBScore < 30 ? 15 : 10;
newScore = playerBScore;
}
_maybeIncrementGame(player, newScore);
}
function _maybeIncrementGame(uint8 player, uint8 newScore) private {
if (player == 0 && newScore == 50) {
playerAGamesWon++;
_resetScore();
} else if (player == 1 && newScore == 50) {
playerBGamesWon++;
_resetScore();
}
}
function resetGame() public onlyOwner {
playerAGamesWon = 0;
playerBGamesWon = 0;
_resetScore();
}
function _resetScore() private {
playerAScore = 0;
playerBScore = 0;
}
}
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