• active : PongGame::PlayerContext
• ball_dir_x_ : PongGame
• ball_dir_y_ : PongGame
• ball_pos_x_ : PongGame
• ball_pos_y_ : PongGame
• field_marker_ : PongGame
• game_loop_timer_ : PongGame
• last_ball_pos_x_ : PongGame
• last_ball_pos_y_ : PongGame
• max_sel_ : PointCouldSelector
• min_sel_ : PointCouldSelector
• player_contexts_ : PongGame
• points_ : PointCouldSelector
• pos : PongGame::PlayerContext
• score : PongGame::PlayerContext
• sel_points_marker_ : PointCouldSelector
• server_ : PointCouldSelector , PongGame
• speed_ : PongGame
• unsel_points_marker_ : PointCouldSelector