public void StartGame()
{
//reset ball position to center
GameBall.Position = new Vector2(WindowSize.x / 2, 338);
//set ball direction
BallDirection = SetBallDirection();
//reset paddle position
GamePaddle.Position = new Vector2(WindowSize.x / 2, 456);
//regenerate bricks
GenerateBrickGrid();
//show ball & paddle
GameBall.Show();
GamePaddle.Show();
//hide hud
GameOverHud.ShowOrHideHud(show: false);
//tell the script the game's running
game_running = true;
}
