// 根据传入的控制器生成裁判类。
 public Game(Boat boat, Coast leftCoast, Coast rightCoast)
 {
     this.boat       = boat;
     this.leftCoast  = leftCoast;
     this.rightCoast = rightCoast;
     this.state      = new State(0, 0, 3, 3, false);
 }
 // 根据传入的控制器生成裁判类。
 public Game(Boat boat, Coast leftCoast, Coast rightCoast)
 {
     this.boat       = boat;
     this.leftCoast  = leftCoast;
     this.rightCoast = rightCoast;
 }