public Reward(RewardTybe i_tybe, int i_value)
 {
     Tybe  = i_tybe;
     Value = i_value;
 }
 public Reward(RewardTybe i_tybe, string i_ID, int i_value)
 {
     Tybe  = i_tybe;
     Item  = new Item(i_ID, i_value);
     Value = -1;
 }