Unity模拟经营类游戏Demo部分代码及技术总结

7月份自己做了一个模拟经营类的游戏Demo，在此总结UI、库存系统、交易系统、游戏循环等相关内容的代码和实现。

实现效果预览

目录

UI

库存系统

交易系统

游戏循环

---

UI

本项目的UI通过Unity自家的UGUI实现，所有面板的父对象皆为Canvas，各面板为一个实例化的单例对象，其数据由自己进行存储和更新。

面板基础逻辑 

IPanel接口：

interface IPanel
{
    public void ShowPanel();

    public void HidePanel();
}

以商店面板为例：

（通过给面板添加CanvasGroup组件，并更改其参数实现面板的显隐）

public class ShopPanel : MonoBehaviour, IPanel
{
    //单例
    private static ShopPanel instance;
    public static ShopPanel Instance
    {
        get
        {
            return instance;
        }
    }

    //获取商店面板信息 
    public TMP_Text txtTime;
    public TMP_Text txtDays;
    public TMP_Text txtShopMoney;

    public KnapsackPanel knapsack1Panel;
    public KnapsackPanel knapsack2Panel;
    public KnapsackPanel knapsack3Panel;

    public RolePanel role1Panel;
    public RolePanel role2Panel;
    public RolePanel role3Panel;

    private CanvasGroup canvasGroup;
    
    private int money = 100;
    public int Money
    {
        get { return money; }
        set
        {
            money = value;
            txtShopMoney.text = money.ToString();
        }
    }

    public Button btnStorage;
    public Button btnCreate;

    public static bool storageVisible = false;
    public static bool createVisible = false;

    private void Awake()
    {
        //实例化单例
        instance = this;
    }

    // Start is called before the first frame update
    void Start()
    {
        canvasGroup = gameObject.GetComponent();

        HidePanel();

        btnStorage.onClick.AddListener(() =>
        {
            //提示面板清空
            NoticePanel.Instance.HideNotice();

            //仓库按钮按下的逻辑
            if (!storageVisible)
            {
                storageVisible = true;
                StoragePanel.Instance.ShowPanel();
                createVisible = false;
                CreatePanel.Instance.HidePanel();
            }
            else
            {
                storageVisible = false;
                StoragePanel.Instance.HidePanel();
            }
        });

        btnCreate.onClick.AddListener(() =>
        {
            //提示面板清空
            NoticePanel.Instance.HideNotice();

            //制造按钮按下的逻辑
            if (!createVisible)
            {
                createVisible = true;
                CreatePanel.Instance.ShowPanel();
                storageVisible = false;
                StoragePanel.Instance.HidePanel();
            }
            else
            {
                createVisible = false;
                CreatePanel.Instance.HidePanel();
            }
        });

        txtShopMoney.text = money.ToString();
    }
    
    //实现接口IPanel
    public void ShowPanel()
    {
        canvasGroup.alpha = 1;
        canvasGroup.interactable = true;
        canvasGroup.blocksRaycasts = true;
    }

    public void HidePanel()
    {
        canvasGroup.alpha = 0;
        canvasGroup.interactable = false;
        canvasGroup.blocksRaycasts = false;
    }

    /// 

    /// 花费金钱
    /// 
    public bool ConsumeMoney(int amount)
    {
        if (money < amount)
        {
            NoticePanel.Instance.ShowNotice("金钱不足！");
            return false;
        }
        money -= amount;
        txtShopMoney.text = money.ToString();
        NoticePanel.Instance.ShowNotice("交易成功！");
        return true;
    }

    /// 

    /// 赚取金钱
    /// 
    public void EarnMoney(int amount)
    {
        money += amount;
        txtShopMoney.text = money.ToString();
    }
}

库存系统

库存系统由Inventory、InventoryManager、Slot、ItemUI等类实现。

Inventory类：

using System.Collections;
using System.Collections.Generic;
using System.Text;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class Inventory : MonoBehaviour
{
    protected Slot[] slots;
    public Slot[] Slots
    {
        get
        {
            return slots;
        }

        set
        {
            slots = value;
        }
    }

    // Start is called before the first frame update
    public virtual void Start()
    {
        slots = GetComponentsInChildren();
    }

    /// 

    /// 通过ID存储物品
    /// 
    /// 
    /// 
    public bool StoreItem(int id)
    {
        Item item = InventoryManager.Instance.GetItemID(id);
        return StoreItem(item);
    }

    /// 

    /// 是否存储成功
    /// 
    /// 
    /// 
    public bool StoreItem(Item item)
    {
        if (item == null)
            return false;

        if (item.capacity == 1)
        {
            Slot slot = FindEmptySlot();
            if (slot == null)
            {
                NoticePanel.Instance.ShowNotice("没空的物品槽！");
                return false;
            }
            else
            {
                slot.CreateItem(item);
            }
        }
        else
        {
            Slot slot = FindSameIDSlot(item);
            if (slot != null)
            {
                slot.CreateItem(item);
            }
            else //找新的空物品槽
            {
                Slot slot2 = FindEmptySlot();
                if (slot2 != null)
                    slot2.CreateItem(item);
                else
                {
                    NoticePanel.Instance.ShowNotice("没空的物品槽！");
                    return false;
                }
            }
        }
        return true;
    }

    /// 

    /// 减少物品数量
    /// 
    /// 
    /// 
    /// 
    /// 
    public bool ReduceItem(Item targetItem, int total, int amount = 1)
    {
        if (amount > total)
            return false;
        foreach (Slot slot in slots)
        {
            if (slot.transform.childCount != 0)
            {
                GameObject items = slot.transform.GetChild(0).GetComponent().gameObject;
                if (items.GetComponent().Item.id == targetItem.id)
                {
                    int currentAmount = int.Parse(items.transform.GetChild(0).gameObject.GetComponent().text);
                    if (amount >= currentAmount)
                    {
                        amount -= currentAmount;
                        total -= currentAmount;
                        items.transform.GetChild(0).gameObject.GetComponent().text = 0.ToString();
                        DestroyImmediate(items);
                        items = null;
                        if (total == 0)
                        {
                            BuyPanel.CancelBuy();
                            return true;
                        }
                    }
                    else
                    {
                        currentAmount -= amount;
                        total -= amount;
                        items.GetComponent().Amount = currentAmount;
                        items.transform.GetChild(0).gameObject.GetComponent().text = currentAmount.ToString();
                        amount = 0;
                    }
                }
                if (amount == 0)
                {
                    return true;
                }
            }
        }
        return false;
    }

    /// 

    /// 找空的物品槽
    /// 
    /// 
    private Slot FindEmptySlot()
    {
        foreach (Slot slot in slots)
        {
            if (slot.transform.childCount == 0)
                return slot;
        }
        return null;
    }

    /// 

    /// 找相同ID的物品槽
    /// 
    /// 
    private Slot FindSameIDSlot(Item item)
    {
        foreach (Slot slot in slots)
        {
            if (slot.transform.childCount >= 1 && slot.GetItemID() == item.id && slot.IsFull() == false)
                return slot;
        }
        return null;
    }

    /// 

    /// 统计相同ID物品的总数量
    /// 
    /// 
    /// 
    public int CountSameIDSlot(Item item)
    {
        int count = 0;
        foreach (Slot slot in slots)
        {
            if (slot.transform.childCount >= 1 && slot.GetItemID() == item.id)
                count += int.Parse(slot.transform.GetChild(0).transform.GetChild(0).GetComponent().text);
        }
        return count;
    }

    /// 

    /// 背包整理(空格收纳、物品排序、材料收纳)
    /// 
    public void InventoryClear()
    {
        EmptyClear();
        Sort();
        Combine();
    }

    /// 

    /// 空格收纳
    /// 
    public void EmptyClear()
    {
        int itemCount = 0;
        foreach(Slot slot in slots)
        {
            if (slot.transform.childCount != 0)
                itemCount++;
        }
        for (int i = 0; i < slots.Length; i++)
        {
            if (slots[i].transform.childCount == 0)
            {
                OneEmptyClear(i);
                i = -1;
            }
            if (i + 1 == itemCount)
                return;
        }
    }

    /// 

    /// 单个空格收纳
    /// 
    /// 
    public void OneEmptyClear(int index)
    {
        for (int i = index + 1; i < slots.Length; i++)
        {
            if (slots[i].transform.childCount != 0)
            {
                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                go1.transform.SetParent(slots[i - 1].transform);
                go1.transform.localPosition = Vector3.zero;
            }
        }
    }

    /// 

    /// 物品排序
    /// 
    public void Sort()
    {
        //整体排序
        int i, j;
        for (i = 0; i < slots.Length - 1; i++)
        {
            if (slots[i].transform.childCount == 0)
                break;
            for (j = i + 1; j < slots.Length; j++)
            {
                if (slots[j].transform.childCount == 0)
                    break;
                if (slots[i].transform.GetChild(0).GetComponent().Item.id < slots[j].transform.GetChild(0).GetComponent().Item.id)
                {
                    Swap(i, j);
                }
            }
        }

        int l = 0;
        int k = l;
        //装备耐久度排序(优先低耐久度)
        while (slots[l].transform.childCount != 0 && slots[l].transform.GetChild(0).GetComponent().Item.type == Item.ItemType.Equipment)
        {
            while (slots[k].transform.childCount != 0 && slots[k].transform.GetChild(0).GetComponent().Item.id == slots[l].transform.GetChild(0).GetComponent().Item.id)
                k++;
            for (i = l; i < k - 1; i++)
            {
                for (j = i + 1; j < k; j++)
                {
                    if (slots[i].transform.GetChild(0).GetComponent().durability > slots[j].transform.GetChild(0).GetComponent().durability)
                    {
                        Swap(i, j);
                    }
                }
            }
            l = k;
        }
    }

    /// 

    /// 交换物品位置
    /// 
    /// 
    /// 
    public void Swap(int a, int b)
    {
        GameObject go1 = slots[a].transform.Find("Items(Clone)").gameObject;
        GameObject go2 = slots[b].transform.Find("Items(Clone)").gameObject;
        go1.transform.SetParent(slots[b].transform);
        go1.transform.localPosition = Vector3.zero;
        go2.transform.SetParent(slots[a].transform);
        go2.transform.localPosition = Vector3.zero;
    }

    /// 

    /// 合并材料
    /// 
    public void Combine()
    {
        int i = 0;
        //结束范围
        while (slots[i].transform.childCount != 0 && i < slots.Length)
        {
            //开始范围
            if (slots[i].transform.GetChild(0).GetComponent().Item.type == Item.ItemType.EquipMaterial)
            {
                int j = i, k = i;
                //设置此种材料的下界
                while (slots[k].transform.childCount != 0 && slots[k].transform.GetChild(0).GetComponent().Item.id == slots[i].transform.GetChild(0).GetComponent().Item.id)
                    k++;

                int sum = 0;
                for (; j < k; j++)
                {
                    //局部计算当前材料的总数量
                    sum += int.Parse(slots[j].transform.GetChild(0).transform.GetChild(0).GetComponent().text);
                }

                j = i;
                while (sum != 0)
                {
                    //满足条件则是此种材料最后一格
                    if (sum <= slots[i].transform.GetChild(0).GetComponent().Item.capacity)
                    {
                        slots[j].transform.GetChild(0).transform.GetChild(0).GetComponent().text = sum.ToString();
                        sum = 0;
                        if (slots[j + 1].transform.childCount != 0 && slots[j + 1].transform.GetChild(0).GetComponent().Item.id == slots[i].transform.GetChild(0).GetComponent().Item.id)
                        {
                            DestroyImmediate(slots[j + 1].transform.GetChild(0).gameObject);
                            EmptyClear();
                        }
                    }
                    else
                    {
                        slots[j].transform.GetChild(0).transform.GetChild(0).GetComponent().text = slots[i].transform.GetChild(0).GetComponent().Item.capacity.ToString();
                        sum -= slots[i].transform.GetChild(0).GetComponent().Item.capacity;
                    }
                    j++;
                }
                i = k - 1;
            }
            i++;
        }
    }
}

需要实现库存功能的面板继承Inventory类，以KnapsackPanel为例：

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

public class KnapsackPanel : Inventory, IPanel
{
    public Button btnKnapsackClose;

    public RolePanel rolePanel;

    private CanvasGroup canvasGroup;
    
    // Start is called before the first frame update
    public override void Start()
    {
        base.Start();

        canvasGroup = gameObject.GetComponent();

        HidePanel();

        btnKnapsackClose.onClick.AddListener(() =>
        {
            //提示面板清空
            NoticePanel.Instance.HideNotice();

            //关闭逻辑
            RolePanel.knapsackVisible = false;
            HidePanel();
        });
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    public void ShowPanel()
    {
        //整理库存
        InventoryClear();
        canvasGroup.alpha = 1;
        canvasGroup.interactable = true;
        canvasGroup.blocksRaycasts = true;
    }

    public void HidePanel()
    {
        canvasGroup.alpha = 0;
        canvasGroup.interactable = false;
        canvasGroup.blocksRaycasts = false;
    }

    public void Equip()
    {
        int i = 0;
        for (; i < slots.Length; i++)
        {
            //结束判断
            if (slots[i].transform.childCount == 0 || slots[i].transform.GetChild(0).GetComponent().Item.type == Item.ItemType.EquipMaterial)
                return;

            Item item = slots[i].transform.GetChild(0).GetComponent().Item;
            int itemID = item.id;

            switch(Equipment.GetTypeID(itemID))
            {
                case "Head":
                    foreach (Slot slot in rolePanel.Slots)
                    {
                        //如果类型匹配
                        if (slot.name == "Head")
                        {
                            int equipCount = slot.transform.childCount;
                            //装备栏为空
                            if (equipCount == 0 || slot.transform.GetChild(equipCount - 1).GetComponent().durability <= 0)
                            {
                                //将背包内的装备放入装备栏
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                //为角色加上装备属性
                                Equipment equipment = InventoryManager.Instance.GetEquipmentID(go1.GetComponent().Item.id);
                                if (equipment != null)
                                {
                                    rolePanel.Hp += equipment.hp;
                                    rolePanel.Str += equipment.str;
                                    rolePanel.Def += equipment.def;
                                    rolePanel.Atk += equipment.atk;
                                    rolePanel.Crit += equipment.crit;
                                    rolePanel.CritDam += equipment.critDam;
                                }
                                //隐藏装备类型文字
                                rolePanel.txtHead.alpha = 0;
                                //整理背包
                                InventoryClear();
                                i--;
                            }
                            //优先穿戴高阶装备
                            else if (equipCount == 1 && slot.transform.GetChild(0).GetComponent().Item.id < itemID)
                            {
                                //将背包内的装备和装备栏的互换
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                GameObject go2 = slot.transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                go2.transform.SetParent(slots[i].transform);
                                go2.transform.localPosition = Vector3.zero;
                                //角色属性调整
                                Equipment equipment1 = InventoryManager.Instance.GetEquipmentID(slots[i].transform.GetChild(0).GetComponent().Item.id);
                                Equipment equipment2 = InventoryManager.Instance.GetEquipmentID(slot.transform.GetChild(0).GetComponent().Item.id);
                                rolePanel.Hp += equipment2.hp - equipment1.hp;
                                rolePanel.Str += equipment2.str - equipment1.str;
                                rolePanel.Def += equipment2.def - equipment1.def;
                                rolePanel.Atk += equipment2.atk - equipment1.atk;
                                rolePanel.Crit += equipment2.crit - equipment1.crit;
                                rolePanel.CritDam += equipment2.critDam - equipment1.critDam;
                                //整理背包
                                InventoryClear();
                            }
                        }
                    }
                    break;
                case "Chest":
                    foreach (Slot slot in rolePanel.Slots)
                    {
                        //如果装备类型匹配
                        if (slot.name == "Chest")
                        {
                            int equipCount = slot.transform.childCount;
                            //装备栏为空
                            if (equipCount == 0 || slot.transform.GetChild(equipCount - 1).GetComponent().durability <= 0)
                            {
                                //将背包内的装备放入装备栏
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                //为角色加上装备属性
                                Equipment equipment = InventoryManager.Instance.GetEquipmentID(go1.GetComponent().Item.id);
                                if (equipment != null)
                                {
                                    rolePanel.Hp += equipment.hp;
                                    rolePanel.Str += equipment.str;
                                    rolePanel.Def += equipment.def;
                                    rolePanel.Atk += equipment.atk;
                                    rolePanel.Crit += equipment.crit;
                                    rolePanel.CritDam += equipment.critDam;
                                }
                                //隐藏装备类型文字
                                rolePanel.txtChest.alpha = 0;
                                //整理背包
                                InventoryClear();
                                i--;
                            }
                            //优先穿戴高阶装备
                            else if (equipCount == 1 && slot.transform.GetChild(0).GetComponent().Item.id < itemID)
                            {
                                //将背包内的装备和装备栏的互换
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                GameObject go2 = slot.transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                go2.transform.SetParent(slots[i].transform);
                                go2.transform.localPosition = Vector3.zero;
                                //角色属性调整
                                Equipment equipment1 = InventoryManager.Instance.GetEquipmentID(slots[i].transform.GetChild(0).GetComponent().Item.id);
                                Equipment equipment2 = InventoryManager.Instance.GetEquipmentID(slot.transform.GetChild(0).GetComponent().Item.id);
                                rolePanel.Hp += equipment2.hp - equipment1.hp;
                                rolePanel.Str += equipment2.str - equipment1.str;
                                rolePanel.Def += equipment2.def - equipment1.def;
                                rolePanel.Atk += equipment2.atk - equipment1.atk;
                                rolePanel.Crit += equipment2.crit - equipment1.crit;
                                rolePanel.CritDam += equipment2.critDam - equipment1.critDam;
                                //整理背包
                                InventoryClear();
                            }
                        }
                    }
                    break;
                case "Weapon":
                    foreach (Slot slot in rolePanel.Slots)
                    {
                        //如果装备类型匹配
                        if (slot.name == "Weapon")
                        {
                            int equipCount = slot.transform.childCount;
                            //装备栏为空
                            if (equipCount == 0 || slot.transform.GetChild(equipCount - 1).GetComponent().durability <= 0)
                            {
                                //将背包内的装备放入装备栏
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                //为角色加上装备属性
                                Equipment equipment = InventoryManager.Instance.GetEquipmentID(go1.GetComponent().Item.id);
                                if (equipment != null)
                                {
                                    rolePanel.Hp += equipment.hp;
                                    rolePanel.Str += equipment.str;
                                    rolePanel.Def += equipment.def;
                                    rolePanel.Atk += equipment.atk;
                                    rolePanel.Crit += equipment.crit;
                                    rolePanel.CritDam += equipment.critDam;
                                }
                                //隐藏装备类型文字
                                rolePanel.txtWeapon.alpha = 0;
                                //整理背包
                                InventoryClear();
                                i--;
                            }
                            //优先穿戴高阶装备
                            else if (equipCount == 1 && slot.transform.GetChild(0).GetComponent().Item.id < itemID)
                            {
                                //将背包内的装备和装备栏的互换
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                GameObject go2 = slot.transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                go2.transform.SetParent(slots[i].transform);
                                go2.transform.localPosition = Vector3.zero;
                                //角色属性调整
                                Equipment equipment1 = InventoryManager.Instance.GetEquipmentID(slots[i].transform.GetChild(0).GetComponent().Item.id);
                                Equipment equipment2 = InventoryManager.Instance.GetEquipmentID(slot.transform.GetChild(0).GetComponent().Item.id);
                                rolePanel.Hp += equipment2.hp - equipment1.hp;
                                rolePanel.Str += equipment2.str - equipment1.str;
                                rolePanel.Def += equipment2.def - equipment1.def;
                                rolePanel.Atk += equipment2.atk - equipment1.atk;
                                rolePanel.Crit += equipment2.crit - equipment1.crit;
                                rolePanel.CritDam += equipment2.critDam - equipment1.critDam;
                                //整理背包
                                InventoryClear();
                            }
                        }
                    }
                    break;
                case "Glove":
                    foreach (Slot slot in rolePanel.Slots)
                    {
                        //如果装备类型匹配
                        if (slot.name == "Glove")
                        {
                            int equipCount = slot.transform.childCount;
                            //装备栏为空
                            if (equipCount == 0 || slot.transform.GetChild(equipCount - 1).GetComponent().durability <= 0)
                            {
                                //将背包内的装备放入装备栏
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                //为角色加上装备属性
                                Equipment equipment = InventoryManager.Instance.GetEquipmentID(go1.GetComponent().Item.id);
                                if (equipment != null)
                                {
                                    rolePanel.Hp += equipment.hp;
                                    rolePanel.Str += equipment.str;
                                    rolePanel.Def += equipment.def;
                                    rolePanel.Atk += equipment.atk;
                                    rolePanel.Crit += equipment.crit;
                                    rolePanel.CritDam += equipment.critDam;
                                }
                                //隐藏装备类型文字
                                rolePanel.txtGlove.alpha = 0;
                                //整理背包
                                InventoryClear();
                                i--;
                            }
                            //优先穿戴高阶装备
                            else if (equipCount == 1 && slot.transform.GetChild(0).GetComponent().Item.id < itemID)
                            {
                                //将背包内的装备和装备栏的互换
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                GameObject go2 = slot.transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                go2.transform.SetParent(slots[i].transform);
                                go2.transform.localPosition = Vector3.zero;
                                //角色属性调整
                                Equipment equipment1 = InventoryManager.Instance.GetEquipmentID(slots[i].transform.GetChild(0).GetComponent().Item.id);
                                Equipment equipment2 = InventoryManager.Instance.GetEquipmentID(slot.transform.GetChild(0).GetComponent().Item.id);
                                rolePanel.Hp += equipment2.hp - equipment1.hp;
                                rolePanel.Str += equipment2.str - equipment1.str;
                                rolePanel.Def += equipment2.def - equipment1.def;
                                rolePanel.Atk += equipment2.atk - equipment1.atk;
                                rolePanel.Crit += equipment2.crit - equipment1.crit;
                                rolePanel.CritDam += equipment2.critDam - equipment1.critDam;
                                //整理背包
                                InventoryClear();
                            }
                        }
                    }
                    break;
                case "Jewelry":
                    foreach (Slot slot in rolePanel.Slots)
                    {
                        //如果装备类型匹配
                        if (slot.name == "Jewelry")
                        {
                            int equipCount = slot.transform.childCount;
                            //装备栏为空
                            if (equipCount == 0 || slot.transform.GetChild(equipCount - 1).GetComponent().durability <= 0)
                            {
                                //将背包内的装备放入装备栏
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                //为角色加上装备属性
                                Equipment equipment = InventoryManager.Instance.GetEquipmentID(go1.GetComponent().Item.id);
                                if (equipment != null)
                                {
                                    rolePanel.Hp += equipment.hp;
                                    rolePanel.Str += equipment.str;
                                    rolePanel.Def += equipment.def;
                                    rolePanel.Atk += equipment.atk;
                                    rolePanel.Crit += equipment.crit;
                                    rolePanel.CritDam += equipment.critDam;
                                }
                                //隐藏装备类型文字
                                rolePanel.txtJewelry.alpha = 0;
                                //整理背包
                                InventoryClear();
                                i--;
                            }
                            //优先穿戴高阶装备
                            else if (equipCount == 1 && slot.transform.GetChild(0).GetComponent().Item.id < itemID)
                            {
                                //将背包内的装备和装备栏的互换
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                GameObject go2 = slot.transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                go2.transform.SetParent(slots[i].transform);
                                go2.transform.localPosition = Vector3.zero;
                                //角色属性调整
                                Equipment equipment1 = InventoryManager.Instance.GetEquipmentID(slots[i].transform.GetChild(0).GetComponent().Item.id);
                                Equipment equipment2 = InventoryManager.Instance.GetEquipmentID(slot.transform.GetChild(0).GetComponent().Item.id);
                                rolePanel.Hp += equipment2.hp - equipment1.hp;
                                rolePanel.Str += equipment2.str - equipment1.str;
                                rolePanel.Def += equipment2.def - equipment1.def;
                                rolePanel.Atk += equipment2.atk - equipment1.atk;
                                rolePanel.Crit += equipment2.crit - equipment1.crit;
                                rolePanel.CritDam += equipment2.critDam - equipment1.critDam;
                                //整理背包
                                InventoryClear();
                            }
                        }
                    }
                    break;
                case "Shield":
                    foreach (Slot slot in rolePanel.Slots)
                    {
                        //如果装备类型匹配
                        if (slot.name == "Shield")
                        {
                            int equipCount = slot.transform.childCount;
                            //装备栏为空
                            if (equipCount == 0 || slot.transform.GetChild(equipCount - 1).GetComponent().durability <= 0)
                            {
                                //将背包内的装备放入装备栏
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                //为角色加上装备属性
                                Equipment equipment = InventoryManager.Instance.GetEquipmentID(go1.GetComponent().Item.id);
                                if (equipment != null)
                                {
                                    rolePanel.Hp += equipment.hp;
                                    rolePanel.Str += equipment.str;
                                    rolePanel.Def += equipment.def;
                                    rolePanel.Atk += equipment.atk;
                                    rolePanel.Crit += equipment.crit;
                                    rolePanel.CritDam += equipment.critDam;
                                }
                                //隐藏装备类型文字
                                rolePanel.txtShield.alpha = 0;
                                //整理背包
                                InventoryClear();
                                i--;
                            }
                            //优先穿戴高阶装备
                            else if (equipCount == 1 && slot.transform.GetChild(0).GetComponent().Item.id < itemID)
                            {
                                //将背包内的装备和装备栏的互换
                                GameObject go1 = slots[i].transform.Find("Items(Clone)").gameObject;
                                GameObject go2 = slot.transform.Find("Items(Clone)").gameObject;
                                go1.transform.SetParent(slot.transform);
                                go1.transform.localPosition = Vector3.zero;
                                go2.transform.SetParent(slots[i].transform);
                                go2.transform.localPosition = Vector3.zero;
                                //角色属性调整
                                Equipment equipment1 = InventoryManager.Instance.GetEquipmentID(slots[i].transform.GetChild(0).GetComponent().Item.id);
                                Equipment equipment2 = InventoryManager.Instance.GetEquipmentID(slot.transform.GetChild(0).GetComponent().Item.id);
                                rolePanel.Hp += equipment2.hp - equipment1.hp;
                                rolePanel.Str += equipment2.str - equipment1.str;
                                rolePanel.Def += equipment2.def - equipment1.def;
                                rolePanel.Atk += equipment2.atk - equipment1.atk;
                                rolePanel.Crit += equipment2.crit - equipment1.crit;
                                rolePanel.CritDam += equipment2.critDam - equipment1.critDam;
                                //整理背包
                                InventoryClear();
                            }
                        }
                    }
                    break;
            }
        }
    }

    public void ClearMaterial()
    {
        foreach (Slot slot in slots)
        {
            if (slot.transform.childCount > 0 && slot.transform.GetChild(0).GetComponent().Item.type == Item.ItemType.EquipMaterial)
                Destroy(slot.transform.GetChild(0).gameObject);
        }
    }
}

InventoryManager类：

（游戏内物品的信息以及合成配方信息使用JSON格式进行存储读取）

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

public class InventoryManager : MonoBehaviour
{
    //单例
    private static InventoryManager instance;
    public static InventoryManager Instance
    {
        get
        {
            return instance;
        }
    }
    
    private ToolTip toolTip;
    private ForgeTip forgeTip;

    /// 

    /// 判断是否显示ToolTip
    /// 
    private bool isShowToolTipLeft = false;
    private bool isShowToolTipRight = false;
    private bool isShowForgeTip = false;
    private static Canvas canvas;

    private void Awake()
    {
        //实例化单例
        instance = this;

        ParseItemsJSON();
    }

    // Start is called before the first frame update
    void Start()
    {
        toolTip = FindObjectOfType();
        forgeTip = FindObjectOfType();
        canvas = GameObject.Find("Canvas").GetComponent();
    }

    // Update is called once per frame
    void Update()
    {
        if (isShowToolTipLeft == true)
        {
            Vector2 position;
            RectTransformUtility.ScreenPointToLocalPointInRectangle(canvas.transform as RectTransform, Input.mousePosition, null, out position);
            toolTip.SetToolTipPositionLeft(position);
        }

        if (isShowToolTipRight == true)
        {
            Vector2 position;
            RectTransformUtility.ScreenPointToLocalPointInRectangle(canvas.transform as RectTransform, Input.mousePosition, null, out position);
            toolTip.SetToolTipPositionRight(position, toolTip.GetComponent().rect.width);
        }
        
        if (isShowForgeTip == true)
        {
            Vector2 position;
            RectTransformUtility.ScreenPointToLocalPointInRectangle(canvas.transform as RectTransform, Input.mousePosition, null, out position);
            forgeTip.SetForgeTipPosition(position);
        }
    }

    /// 

    /// 存放物品的集合
    /// 
    private List itemList;
    public List ItemList
    {
        get
        {
            return itemList;
        }
    }

    /// 

    /// 解析JSON
    /// 
    private void ParseItemsJSON()
    {
        itemList = new List();
        TextAsset ta = Resources.Load("items");
        JSONObject j = new JSONObject(ta.text);

        foreach (JSONObject temp in j.list)
        {
            string itemType = temp["type"].str;
            Item.ItemType type = (Item.ItemType)System.Enum.Parse(typeof(Item.ItemType), itemType);
            int id = (int)temp["id"].n;  //公用物品解析
            string name = temp["name"].str;
            string description = temp["description"].str;
            int capacity = (int)(temp["capacity"].n);
            int standardPrice = (int)(temp["standardPrice"].n);
            string sprite = temp["sprite"].str;

            Item item = null;
            switch (type)
            {
                case Item.ItemType.Equipment:
                    int hp = (int)temp["hp"].n;
                    int str = (int)temp["str"].n;
                    int def = (int)temp["def"].n;
                    int atk = (int)temp["atk"].n;
                    int crit = (int)temp["crit"].n;
                    int critDam = (int)temp["critDam"].n;
                    float durability = (float)temp["durability"].n;
                    Equipment.EquipmentType equipType = (Equipment.EquipmentType)System.Enum.Parse(typeof(Equipment.EquipmentType), temp["equipType"].str);
                    item = new Equipment(id, name, type, description, capacity, standardPrice, sprite, hp, str, def, atk, crit, critDam, durability, equipType);
                    break;
                
                case Item.ItemType.EquipMaterial:
                    item = new EquipMaterial(id, name, type, description, capacity, standardPrice, sprite);
                    break;
            }
            itemList.Add(item);
        }
    }

    /// 

    /// 通过ID返回Item
    /// 
    /// 
    /// 
    public Item GetItemID(int id)
    {
        foreach (Item item in itemList)
        {
            if (item.id == id)
            {
                return item;
            }
        }
        return null;
    }

    /// 

    /// 通过id获得装备
    /// 
    /// 
    /// 
    public Equipment GetEquipmentID(int id)
    {
        foreach (Item item in itemList)
        {
            if (item.id == id)
            {
                return item as Equipment;
            }
        }
        return null;
    }

    public void ShowToolTipContentLeft(string content)
    {
        isShowToolTipLeft = true;
        toolTip.Show(content);
    }

    public void ShowToolTipContentRight(string content)
    {
        isShowToolTipRight = true;
        toolTip.Show(content);
    }

    public void HideToolTipContent()
    {
        isShowToolTipLeft = false;
        isShowToolTipRight = false;
        toolTip.Hide();
    }

    public void ShowForgeTipContent(string content)
    {
        isShowForgeTip = true;
        forgeTip.Show(content);
    }

    public void HideForgeTipContent()
    {
        isShowForgeTip = false;
        forgeTip.Hide();
    }
}

Slot类：

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

public class Slot : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler
{
    public GameObject itemPrefab;

    public void CreateItem(Item item)
    {
        if (transform.childCount == 0)
        {
            GameObject itemPrefabs = Instantiate(itemPrefab);
            itemPrefabs.transform.SetParent(transform);
            itemPrefabs.transform.localPosition = Vector3.zero;
            itemPrefabs.transform.localScale = Vector3.one;
            transform.GetChild(0).GetComponent().SetItem(item);
        }
        else
        {
            transform.GetChild(0).GetComponent().AddAmount();
        }
    }

    public void CreateItem(Item item,int amount)
    {
        if (transform.childCount == 0)
        {
            GameObject itemPrefabs = GameObject.Instantiate(itemPrefab);
            itemPrefabs.transform.SetParent(transform);
            itemPrefabs.transform.localPosition = Vector3.zero;
            itemPrefabs.transform.localScale = Vector3.one;
            transform.GetChild(0).GetComponent().SetItem(item, amount);
        }
        else
        {
            return;
        }
    }

    /// 

    /// 得到当前物品槽存储的物品类型
    /// 
    /// 
    public Item.ItemType GetItemType()
    {
        return transform.GetChild(0).GetComponent().Item.type;
    }

    /// 

    /// 得到当前物品槽存储的物品ID
    /// 
    /// 
    public int GetItemID()
    {
        return transform.GetChild(0).GetComponent().Item.id;
    }

    /// 

    /// 当前物品槽的物品容量是否已满
    /// 
    /// 
    /// 
    public bool IsFull()
    {
        ItemUI itemUI = transform.GetChild(0).GetComponent();
        return itemUI.Amount >= itemUI.Item.capacity;
    }

    public void OnPointerEnter(PointerEventData eventData)
    {
        if (transform.childCount > 0)
        {
            //当指向制作栏中的装备时
            if (transform.GetChild(0).GetComponent().Item.type == Item.ItemType.Equipment && transform.parent.parent.GetComponent() == CreatePanel.Instance)
            {
                string content = transform.GetChild(0).GetComponent().Item.GetToolTipContent();
                InventoryManager.Instance.ShowToolTipContentLeft(content);
                string forge = transform.GetChild(0).GetComponent().Item.GetForgeTipContent();
                InventoryManager.Instance.ShowForgeTipContent(forge);
            }
            //当指向背包和装备栏中的装备时
            else if (transform.GetChild(0).GetComponent().Item.type == Item.ItemType.Equipment && transform.parent.parent.GetComponent() != CreatePanel.Instance)
            {
                string content = transform.GetChild(0).GetComponent().Item.GetToolTipContent() + string.Format("\n耐久度：{0}", transform.GetChild(0).GetComponent().durability);
                InventoryManager.Instance.ShowToolTipContentRight(content);
            }
            //当指向仓库中的材料时
            else if (transform.parent.parent.GetComponent() == StoragePanel.Instance)
            {
                string content = transform.GetChild(0).GetComponent().Item.GetToolTipContent();
                InventoryManager.Instance.ShowToolTipContentLeft(content);
            }
            //当指向背包中的材料时
            else
            {
                string content = transform.GetChild(0).GetComponent().Item.GetToolTipContent();
                InventoryManager.Instance.ShowToolTipContentRight(content);
            }
        }
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        if (transform.childCount > 0)
        {
            if (transform.GetChild(0).GetComponent().Item.type == Item.ItemType.Equipment)
                InventoryManager.Instance.HideForgeTipContent();
            InventoryManager.Instance.HideToolTipContent();
        }
    }
}

为需要实现库存功能的格子Button添加Slot组件：

ItemUI类：

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

public class ItemUI : MonoBehaviour
{
    public int Amount { get; set; }
    public Item Item { get; set; }

    private TMP_Text ItemText;
    private Image ItemImage;

    private Vector3 AnimationScale = new Vector3(1.3f, 1.3f, 1.3f);
    private float TargetScale = 1;
    private float Smoothing = 3.0f;

    public float durability = 100f;

    private void Awake()
    {
        ItemText = GetComponentInChildren();
        ItemImage = GetComponent();
    }

    private void Update()
    {
        if (transform.localScale.x != TargetScale)
        {
            float scale = Mathf.Lerp(transform.localScale.x, TargetScale, Smoothing * Time.deltaTime);
            transform.localScale = new Vector3(scale, scale, scale);
            if (Mathf.Abs(AnimationScale.x - TargetScale) <= 0.03f)
                AnimationScale = Vector3.one;
        }
    }

    /// 

    /// 设置当前物品信息
    /// 
    /// 
    /// 
    public void SetItem(Item item, int amount = 1)
    {
        transform.localScale = AnimationScale;
        Item = item;
        Amount = amount;
        //更新UI 
        ItemImage.sprite = Resources.Load(item.sprite);
        if (item.capacity > 1)
            ItemText.text = amount.ToString();
        else
            ItemText.text = "";
    }

    public void ReduceAmount(int amount = 1)
    {
        transform.localScale = AnimationScale;
        Amount -= amount;
        //更新UI
        if (Item.capacity > 1)
            ItemText.text = Amount.ToString();
        else
            ItemText.text = "";
    }

    public void AddAmount(int amount = 1)
    {
        transform.localScale = AnimationScale;
        Amount += amount;
        //更新UI
        if (Item.capacity > 1)
            ItemText.text = Amount.ToString();
        else
            ItemText.text = "";
    }

    public void SetAmount(int amount)
    {
        transform.localScale = AnimationScale;
        Amount = amount;
        if (Item.capacity > 1)
            ItemText.text = Amount.ToString();
        else
            ItemText.text = "";
    }
}

将挂载ItemUI组件的对象制成预制体，供Slot类动态加载：

交易系统

游戏内的交易通过购买面板和售卖面板两个单例实现。

购买面板：

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

public class BuyPanel : MonoBehaviour
{
    //单例
    private static BuyPanel instance;
    public static BuyPanel Instance
    {
        get
        {
            return instance;
        }
    }

    public Button btnBuy;
    public Button btnBuyClose;
    public TMP_Text txtStandardPrice;
    public TMP_Text txtTotal;
    public TMP_InputField txtPrice;
    public TMP_InputField txtQuantity;

    public float topCoefficient = 0.5f;
    public float bottomCoefficient = 0.5f;

    public static int StandardPrice { get; set; }
    public static int ItemID { get; set; }
    public static int ItemAmount { get; set; }

    public static Item item;
    public static KnapsackPanel knapsackPanel;
    public static GameObject slot;

    private int result = 0;
    private int total = 0;
    private int quantity = 0;
    private int price = 0;

    private void Start()
    {
        //默认以标准价格购买1个物品
        price = StandardPrice;
        txtPrice.text = price.ToString();
        quantity = 1;
        txtQuantity.text = quantity.ToString();
        total = price * quantity;
        txtTotal.text = "总价：" + total;

        txtPrice.onValueChanged.AddListener((string value) =>
        {
            //保证输入为数字
            if (int.TryParse(value, out result) && int.TryParse(txtQuantity.text, out result))
            {
                quantity = int.Parse(txtQuantity.text);
                price = int.Parse(value);
                total = price * quantity;

                //更新界面
                txtTotal.text = "总价：" + total;
            }
        });

        txtQuantity.onValueChanged.AddListener((string value) =>
        {
            //保证输入为数字
            if (int.TryParse(txtPrice.text, out result) && int.TryParse(value, out result))
            {
                quantity = int.Parse(value);
                price = int.Parse(txtPrice.text);

                //检测购买数量是否大于物品总数或小于1，并进行调整
                if (quantity > ItemAmount)
                    quantity = ItemAmount;
                //else if (quantity < 1)
                //    quantity = 1;
                total = price * quantity;

                //更新界面
                txtQuantity.text = quantity.ToString();
                txtTotal.text = "总价：" + total;
            }
        });

        //购买逻辑
        btnBuy.onClick.AddListener(() =>
        {
            //提示面板清空
            NoticePanel.Instance.HideNotice();

            if (txtPrice.text == "" || txtQuantity.text == "")
                NoticePanel.Instance.ShowNotice("请输入购买的单价和数量");
            //检测购买价格是否低于标准价格一定倍数，并进行调整
            else if (price < (int)(StandardPrice * (1 - bottomCoefficient)))
            {
                NoticePanel.Instance.ShowNotice("不应与标准价差距过大");
                price = (int)(StandardPrice * (1 - bottomCoefficient));
                total = price * quantity;
                txtPrice.text = price.ToString();
                txtTotal.text = "总价：" + total;
            }
            //检测购买价格是否高于标准价格一定倍数，并进行调整
            else if (price > (int)(StandardPrice * (1 + topCoefficient)))
            {
                NoticePanel.Instance.ShowNotice("不应与标准价差距过大");
                price = (int)(StandardPrice * (1 + topCoefficient));
                total = price * quantity;
                txtPrice.text = price.ToString();
                txtTotal.text = "总价：" + total;
            }
            else if (ShopPanel.Instance.ConsumeMoney(total))
            {
                //角色背包物品减少
                knapsackPanel.ReduceItem(item, ItemAmount, quantity);

                //更新角色背包剩余物品数量
                ItemAmount -= quantity;

                //仓库物品增加
                for (int i = 0; i < quantity; i++)
                    StoragePanel.Instance.StoreItem(item);

                //角色金钱增加
                knapsackPanel.rolePanel.EarnMoney(total);

                //根据角色背包剩余物品数量限制购买数量
                if (ItemAmount < quantity)
                {
                    quantity = ItemAmount;
                    total = price * quantity;

                    //更新界面
                    txtQuantity.text = quantity.ToString();
                    txtTotal.text = "总价：" + total;
                }

                //整理背包和仓库
                knapsackPanel.InventoryClear();
                StoragePanel.Instance.InventoryClear();
            }
        });

        btnBuyClose.onClick.AddListener(() =>
        {
            //提示面板清空
            NoticePanel.Instance.HideNotice();

            CancelBuy();
        });

        txtStandardPrice.text = "标准价格：" + StandardPrice;
    }

    private void Update()
    {
        
    }

    /// 

    /// 实例化面板对象
    /// 
    /// 
    public static void CreateBuy(GameObject slot)
    {
        //槽内没有物品或是和已打开购买面板的物品属于同种物品
        if (slot.transform.childCount == 0 || slot.transform.GetChild(0).GetComponent().Item.id == ItemID)
            return;
        //点击的物品是装备类型
        else if (slot.transform.GetChild(0).GetComponent().Item.type == Item.ItemType.Equipment)
            return;
        
        if (instance == null)
        {
            item = slot.transform.GetChild(0).GetComponent().Item;
            ItemID = slot.GetComponent().GetItemID();
            ItemAmount = slot.transform.parent.parent.GetComponent().CountSameIDSlot(item);
            StandardPrice = item.standardPrice;
            knapsackPanel = slot.transform.parent.parent.GetComponent();

            GameObject res = Resources.Load("Panels/BuyPanel");
            GameObject obj = Instantiate(res);
            
            //设置父对象
            obj.transform.SetParent(GameObject.Find("Canvas/Panels").transform, false);
            
            instance = obj.GetComponent();
        }
        else
        {
            CancelBuy();
            CreateBuy(slot);
        }
    }
    
    public static void CancelBuy()
    {
        if (instance != null)
        {
            Destroy(instance.gameObject);
            instance = null;
        }
        StandardPrice = 0;
        ItemID = 0;
        ItemAmount = 0;
    }
}

售卖面板：

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

public class SellPanel : MonoBehaviour
{
    //单例
    private static SellPanel instance;
    public static SellPanel Instance
    {
        get
        {
            return instance;
        }
    }

    public Button btnSell;
    public Button btnSellClose;
    public TMP_Text txtStandardPrice;
    public TMP_InputField txtPrice;

    public float topCoefficient = 0.5f;
    public float bottomCoefficient = 0.5f;

    public static int StandardPrice { get; set; }
    public static int ItemID { get; set; }

    public static Item item;
    public static KnapsackPanel knapsackPanel;
    public static RolePanel rolePanel;
    public static GameObject slot;

    private static int choose = 1;

    UnityAction a1;

    // Start is called before the first frame update
    void Start()
    {
        btnSell.onClick.AddListener(() =>
        {
            //提示面板清空
            NoticePanel.Instance.HideNotice();

            if (txtPrice.text == "")
                NoticePanel.Instance.ShowNotice("请输入卖出的价格");
            //检测售出价格是否低于标准价格一定倍数，并进行调整
            else if (int.Parse(txtPrice.text) < (int)(StandardPrice * (1 - bottomCoefficient)))
            {
                NoticePanel.Instance.ShowNotice("不应与标准价差距过大");
                txtPrice.text = ((int)(StandardPrice * (1 - bottomCoefficient))).ToString();
            }
            //检测售出价格是否高于标准价格一定倍数，并进行调整
            else if (int.Parse(txtPrice.text) > (int)(StandardPrice * (1 + topCoefficient)))
            {
                NoticePanel.Instance.ShowNotice("不应与标准价差距过大");
                txtPrice.text = ((int)(StandardPrice * (1 + topCoefficient))).ToString();
            }
            else if (rolePanel.ConsumeMoney(int.Parse(txtPrice.text)))
            {
                //制造装备并添加到角色背包
                CreatePanel.Instance.ForgeItem(ItemID);

                //商店增加金钱
                ShopPanel.Instance.EarnMoney(int.Parse(txtPrice.text));

                //整理背包
                knapsackPanel.InventoryClear();

                //穿戴装备
                knapsackPanel.Equip();

                CancelSell();
            }

            //判断是否能继续制造
            if (!CreatePanel.Instance.CanForge(ItemID))
                CancelSell();
        });

        btnSellClose.onClick.AddListener(() =>
        {
            //提示面板清空
            NoticePanel.Instance.HideNotice();

            CancelSell();
        });

        txtStandardPrice.text = "标准价格：" + StandardPrice;
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    /// 

    /// 实例化面板对象
    /// 
    /// 
    public static void CreateSell(GameObject slot)
    {
        //点击相同的装备
        if (slot.transform.GetChild(0).GetComponent().Item.id == ItemID)
            return;
        
        if (CreatePanel.Instance.CanForge(slot.GetComponent().GetItemID()))
        {
            item = slot.transform.GetChild(0).GetComponent().Item;
            ItemID = slot.GetComponent().GetItemID();
            StandardPrice = item.standardPrice;

            if (GameObject.Find("Role1Panel").GetComponent().alpha == 1)
            {
                choose = 1;
            }
            else if (GameObject.Find("Role2Panel").GetComponent().alpha == 1)
            {
                choose = 2;
            }
            else if (GameObject.Find("Role3Panel").GetComponent().alpha == 1)
                choose = 3;

            switch (choose)
            {
                case 1:
                    knapsackPanel = GameObject.Find("Knapsack1Panel").GetComponent();
                    rolePanel = GameObject.Find("Role1Panel").GetComponent();
                    break;
                case 2:
                    knapsackPanel = GameObject.Find("Knapsack2Panel").GetComponent();
                    rolePanel = GameObject.Find("Role2Panel").GetComponent();
                    break;
                case 3:
                    knapsackPanel = GameObject.Find("Knapsack3Panel").GetComponent();
                    rolePanel = GameObject.Find("Role3Panel").GetComponent();
                    break;
            }
        }
        else
        {
            if (instance != null)
                CancelSell();
            return;
        }

        if (instance == null)
        {
            GameObject res = Resources.Load("Panels/SellPanel");
            GameObject obj = Instantiate(res);

            //设置父对象
            obj.transform.SetParent(GameObject.Find("Canvas/Panels").transform, false);

            instance = obj.GetComponent();
        }
        else
        {
            CancelSell();
            CreateSell(slot);
        }
    }

    public static void CancelSell()
    {
        if (instance != null)
        {
            Destroy(instance.gameObject);
            instance = null;
        }
        StandardPrice = 0;
        ItemID = 0;
    }
}

游戏循环

游戏内循环通过Animator Controller的有限状态机实现，并通过FSM脚本与状态机外的其他对象进行通信。