伴侣骑行不选人点击确定报错bug修复；3d视角调整；倒计时优化；

Assets/Scenes/Ride/Scripts/SelectPlayerFactory.cs

@@ -111,6 +111,9 @@ namespace Assets.Scenes.Ride.Scripts
                     OnEndDrag(null);
                 }
             }
+            bool enabled = gameObjects.Where(c => c.GetComponent<SeletedPlayerScript>().isUsed).Count() > 0;
+            rideButton.enabled = enabled;
+            rideButton.interactable = enabled;
         }
         private void StartvalueChanged(string input)
         {