public NPC2(Model model, Tank destination)
     : base(model)
 {
     #region boneyard
     turretBone = model.Bones["turret_geo"];
     cannonBone = model.Bones["canon_geo"];
     hatchBone = model.Bones["hatch_geo"];
     lFrontWBone = model.Bones["l_front_wheel_geo"];
     rFrontWBone = model.Bones["r_front_wheel_geo"];
     lSteer = model.Bones["l_steer_geo"];
     rSteer = model.Bones["r_steer_geo"];
     lBackWBone = model.Bones["l_back_wheel_geo"];
     rBackWBone = model.Bones["r_back_wheel_geo"];
     tankBone = model.Bones["tank_geo"];
     #endregion
     #region boneTransform
     if (turretBone != null) turretTransform = turretBone.Transform;
     if (lFrontWBone != null) lFrontTransform = lFrontWBone.Transform;
     if (rFrontWBone != null) rFrontTransform = rFrontWBone.Transform;
     if (lBackWBone != null) lBackTransform = lBackWBone.Transform;
     if (rBackWBone != null) rBackTransform = rBackWBone.Transform;
     #endregion
     tank = destination;
     translation *= Matrix.CreateTranslation(0, 0, -1200);
     distant = distance + 20;
 }
        protected override void LoadContent()
        {
            //models.Add(new Ground(Game.Content.Load<Model>(@"Models/Ground/Ground")));
            tank1 = new Tank(Game.Content.Load<Model>(@"tank_xnb/tank"), ((Game1)Game).GraphicsDevice, ((Game1)Game).camera);
            models.Add(tank1);
            //models.Add(new NPC2(Game.Content.Load<Model>(@"tank_xnb/tank2"), tank1));

            base.LoadContent();
        }
 public override void Initialize()
 {
     ground=new Ground(Game.Content.Load<Model>(@"Models/Ground/Ground"));
     models.Add(ground);
       // models.Add(new SkyBox(
     //     Game.Content.Load<Model>(@"Models/Sky/skybox")));
       tank=new Tank(Game.Content.Load<Model>(@"Models/Tank/tank"),(((Game1)Game).GraphicsDevice),((Game1)Game).camera);
     tank2 = new pursuit(Game.Content.Load<Model>(@"Models/Tank/tank"), (((Game1)Game).GraphicsDevice), ((Game1)Game).camera);
     models.Add(tank2);
     models.Add(tank);
     steer=new Steering(150f, 300f);
     base.Initialize();
 }