i need help Shop game AmountMoney can't Subtraction But it increases the number

Code (CSharp):

1. ///////Character///   recive Value formcaracter//
2. PlayerPrefs.SetInt("Money" +mapIndex,MoneyAmount + PlayerPrefs.GetInt("Money" +mapIndex) );
3.  
4. /////UI manager//////
5. using System.Collections;
6. using System.Collections.Generic;
7. using UnityEngine;
8. using UnityEngine.UI;
9. using UnityEngine.SceneManagement;
10. using System;
11.  
12. public class UIManager_2 : MonoBehaviour
13. {
14.     public static UIManager_2 instance;
15.     public GameObject MapSelectionPanel;
16.     [Header("Our STAR UI")]
17.     public int Stars;
18.     // public int Moneys;
19.     public Text starText;
20.     //public Text moneyText;
21.     public int Moneys2;
22.     public Text moneyText2;
23.  
24.  
25.     public void Awake()
26.     {
27.         instance = this;
28.         if (instance == null)
29.         {
30.             instance = this;
31.         }
32.         else
33.         {
34.             if (instance != this)
35.             {
36.                 Destroy(gameObject);
37.             }
38.         }
39.         //DontDestroyOnLoad(gameObject);*/
40.     }
41.     public void Start()
42.     {
43.         //PlayerPrefs.DeleteAll();
44.     }
45.     public void Update()
46.     {
47.         UpdateStarUI();
48.         UpdateNewMoney();
49.     }
50.     public void UpdateStarUI()
51.     {
52.         Stars = PlayerPrefs.GetInt("Star" + 1) + PlayerPrefs.GetInt("Star" + 2) + PlayerPrefs.GetInt("Star" + 3) + PlayerPrefs.GetInt("Star" + 4)
53.             + PlayerPrefs.GetInt("Star" + 5) + PlayerPrefs.GetInt("Star" + 6) + PlayerPrefs.GetInt("Star" + 7) + PlayerPrefs.GetInt("Star" + 8); /*PlayerPrefs.GetInt("Map" + 1) + PlayerPrefs.GetInt("Map" + 2) + PlayerPrefs.GetInt("Map" + 3) + PlayerPrefs.GetInt("Map" + 4) + PlayerPrefs.GetInt("Map" + 5) + PlayerPrefs.GetInt("Map" + 6) + PlayerPrefs.GetInt("Map" + 7) + PlayerPrefs.GetInt("Map" + 8);*/
54.         starText.text = Stars.ToString() + ("/24");
55.     }
56.    public void UpdateNewMoney()
57.     {
58.         Moneys2 = PlayerPrefs.GetInt("Money" + 1 )+ PlayerPrefs.GetInt("Money" + 2) + PlayerPrefs.GetInt("Money" + 3) + PlayerPrefs.GetInt("Money" + 4)
59.                  + PlayerPrefs.GetInt("Money" + 5) + PlayerPrefs.GetInt("Money" + 6) + PlayerPrefs.GetInt("Money" + 7) + PlayerPrefs.GetInt("Money" + 8);
60.         moneyText2.text = Moneys2.ToString() + (" B");
61.     }
62. }
63. /////////////////////////////shop Game////
64. using System.Collections;
65. using System.Collections.Generic;
66. using UnityEngine;
67. using UnityEngine.UI;
68. using UnityEngine.SceneManagement;
69. using System;
70.  
71. public class ShopManager : MonoBehaviour
72. {
73.     public int Money;
74.     public Text moneyText;
75.     public int item1;
76.     //public int item2;
77.     public GameObject shop;
78.     public int Moneys3;
79.     // Start is called before the first frame update
80.     void Start()
81.     {
82.  
83.     }
84.  
85.     // Update is called once per frame
86.     void Update()
87.     {
88.         UpdateMoney();
89.        
90.  
91.     }
92.     public void UpdateMoney()
93.     {
94.  
95.         Money = UIManager_2.instance.Moneys2;
96.         moneyText.text = "Money :" + Money;
97.     }
98.     public void BuyItem()
99.     {
100.         if (Money >= item1)
101.         {
102.             Moneys3 = Money - item1;
103.             PlayerPrefs.SetInt("Money3", Moneys3);
104.         }
105.         else
106.         {
107.             Debug.Log("NoMoney");
108.         }
109.     }
110.     public void OpenShop()
111.     {
112.         shop.gameObject.SetActive(true);
113.     }
114.     public void ExitShop()
115.     {
116.         shop.gameObject.SetActive(false);
117.     }
118. }
119.  

 

To help gain more insight into your problem, I recommend liberally sprinkling Debug.Log() statements through your code to display information in realtime.

Doing this should help you answer these types of questions:

- is this code even running? which parts are running? how often does it run?
- what are the values of the variables involved? Are they initialized?

Knowing this information will help you reason about the behavior you are seeing.

 

Plase Help me i try it 3days Not finished my shop

 

I assure you the person best positioned to solve this is you, by the steps outlined above.

If you are unwilling to do the engineering, I'm sorry, I cannot do it for you.