制作从商店系统收到采购物品的库存。

Question

我想把从我的游戏商店购买的物品，比如装饰品，在我买完后去库存。

​

​

我已经创建了一个商店系统的购买按钮和东西，但我不知道如何使库存收到的项目。这些是我为商店和存货准备的脚本：

车间系统

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class ShopManager : MonoBehaviour
{

    public int[,] shopItems = new int[9, 9];
    public float coins;
    public Text CoinsTXT;


    void Start()
    {
        CoinsTXT.text = "" + coins.ToString();

        //ID's
        shopItems[1, 1] = 1;
        shopItems[1, 2] = 2;
        shopItems[1, 3] = 3;
        shopItems[1, 4] = 4;
        shopItems[1, 5] = 5;
        shopItems[1, 6] = 6;
        shopItems[1, 7] = 7;
        shopItems[1, 8] = 8;

        //Price
        shopItems[2, 1] = 10;
        shopItems[2, 2] = 20;
        shopItems[2, 3] = 30;
        shopItems[2, 4] = 40;
        shopItems[2, 5] = 50;
        shopItems[2, 6] = 65;
        shopItems[2, 7] = 110;
        shopItems[2, 8] = 150;

    }


    public void Buy()
    {
        GameObject ButtonRef = GameObject.FindGameObjectWithTag("Event").GetComponent<EventSystem>().currentSelectedGameObject;

        if (coins >= shopItems[2, ButtonRef.GetComponent<ButtonInfo>().ItemID])
        {
            coins -= shopItems[2, ButtonRef.GetComponent<ButtonInfo>().ItemID];
            CoinsTXT.text = "Coins:" + coins.ToString();
        }


    }
}

库存系统

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Inventory {

    private List<Item> itemList;

    public Inventory()
    {
        itemList = new List<Item>();

        Debug.Log("Inventory");
    }

    public void AddItem(Item item)
    {
        itemList.Add(item);
    }
}

我应该添加什么使它收到购买的物品？

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GameEvents : MonoBehaviour
{
    public static GameEvents gameEvents;

    private void Awake()
    {
        gameEvents = this;
    }

    public event Action<int> onItemPurchase;

    public void ItemPurchaseMade(Item int)
    {
        if (onItemPurchase != null)
        {
            onItemPurchase(int);
        }
    }
}

我发现了这些错误：

Assets\GameEvents.cs(17,39)：错误CS1001:预期标识符

Assets\GameEvents.cs(17,39)：错误CS1003:语法错误，'，‘预期

Assets\GameEvents.cs(17,42)：错误CS1001:预期标识符

Assets\GameEvents.cs(21,28)：错误CS1525:无效表达式术语'int‘

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GameEvents : MonoBehaviour
{
    public static GameEvents gameEvents;

    private void Awake()
    {
        gameEvents = this;
    }

    public event Action<int> onItemPurchase;

    public void ItemPurchaseMade(int itemId)
    {
        if (onItemPurchase != null)
        {
            onItemPurchase(itemId);
        }
    }
}

以下是我在编辑itemId后遇到的错误：

Assets\Scripts\GameEvents.cs(6,14)：error CS0101:名称空间“”已经包含“GameEvents”的定义

Assets\Scripts\GameEvents.cs(15,25)：错误CS0246:无法找到类型或名称空间名称'Item‘(您是缺少使用指令还是程序集引用？)

Assets\Scripts\GameEvents.cs(17,34)：错误CS0246:无法找到类型或命名空间名称'Item‘(您是缺少使用指令还是程序集引用？)

Assets\Scripts\Inventory.cs(20,25)：错误CS0246:无法找到类型或名称空间名称'Item‘(您是缺少使用指令还是程序集引用？)

Assets\Scripts\GameEvents.cs(10,18)：error CS0111: Type 'GameEvents‘已经用相同的参数类型定义了一个名为’GameEvents‘的成员

Assets\Scripts\Inventory.cs(8,18)：错误CS0246:无法找到类型或名称空间名称'Item‘(您是缺少一个使用指令还是程序集引用？)？

Answer 1

您可以使用事件使您的脚本“通信”独立。

首先，你需要游戏事件。确保场景中的游戏对象上有脚本，

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GameEvents : MonoBehaviour
{
    public static GameEvents gameEvents;

    private void Awake()
    {
        gameEvents = this;
    }

    public event Action<Item> onItemPurchase;

    public void ItemPurchaseMade(Item item)
    {
        if(onItemPurchase != null)
        {
            onItemPurchase(item);
        }
    }
}

然后将触发器包含在购买方法中：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class ShopManager : MonoBehaviour
{

    public int[,] shopItems = new int[9, 9];
    public float coins;
    public Text CoinsTXT;


    void Start()
    {
        CoinsTXT.text = "" + coins.ToString();

        //ID's
        shopItems[1, 1] = 1;
        shopItems[1, 2] = 2;
        shopItems[1, 3] = 3;
        shopItems[1, 4] = 4;
        shopItems[1, 5] = 5;
        shopItems[1, 6] = 6;
        shopItems[1, 7] = 7;
        shopItems[1, 8] = 8;

        //Price
        shopItems[2, 1] = 10;
        shopItems[2, 2] = 20;
        shopItems[2, 3] = 30;
        shopItems[2, 4] = 40;
        shopItems[2, 5] = 50;
        shopItems[2, 6] = 65;
        shopItems[2, 7] = 110;
        shopItems[2, 8] = 150;

    }


    public void Buy()
    {
        GameObject ButtonRef = GameObject.FindGameObjectWithTag("Event").GetComponent<EventSystem>().currentSelectedGameObject;

        if (coins >= shopItems[2, ButtonRef.GetComponent<ButtonInfo>().ItemID])
        {
            coins -= shopItems[2, ButtonRef.GetComponent<ButtonInfo>().ItemID];
            CoinsTXT.text = "Coins:" + coins.ToString();

            Item yourItem = Item() //get your Item from ID

            GameEvents.gameEvents.ItemPurchaseMade(yourItem);
        }


    }
}

然后听一听你的库存课上的事件：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Inventory {

    private List<Item> itemList;

    public Inventory()
    {

        GameEvents.gameEvents.onItemPurchase += AddItem;

        itemList = new List<Item>();

        Debug.Log("Inventory");
    }

    public void AddItem(Item item)
    {
        itemList.Add(item);
    }
}

目前还不清楚您从哪里从他们的is获得该项目。所以我才把那部分忘了。作为另一种选择，您可以通过事件传递itemId，并在库存类中获取项目。