rua/Script/Shop/ShopManager.cs

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

public class ShopManager : MonoBehaviour
{
    public Inventory myBag;
    public Text moneyText1;
    public Text moneyText2;
    public Text itemDescription;
    public Text weaponDescription;

    GameManager gameManager;
    GameObject[] pieces;
    Character maincharacter;
    Character selected;

    void Start()
    {
        gameManager = GameObject.Find("GameManager").GetComponent<GameManager>();
        pieces = GameObject.FindGameObjectsWithTag("Pieces");
        foreach (var piece in pieces)
        {
            if(piece.GetComponent<Character>().id == 0)
            {
                maincharacter = piece.GetComponent<Character>();
                break;
            }
        }
        if(gameManager.GetSelected() != null)
            selected = gameManager.GetSelected();
        else
            selected = maincharacter;
    }

    void Update()
    {
        moneyText1.GetComponent<Text>().text = maincharacter.money.ToString();
        moneyText2.GetComponent<Text>().text = maincharacter.money.ToString();
        selected = gameManager.GetSelected();
    }

    public void ItemOnClicked(Item item)
    {
        itemDescription.text = item.itemInfo;
    }

    public void WeaponOnClicked(Item item)
    {
        weaponDescription.text = item.itemInfo;
    }

    public void ItemPurchase(Item item)
    {
        if (maincharacter.money < 5)
        {
            itemDescription.text = "角色金钱不足";
            return;
        }
        
        if (!myBag.itemList.Contains(item))
        {
            for (int i = 0; i < myBag.itemList.Count; i++)
            {
                if (myBag.itemList[i] == null)
                {
                    myBag.itemList[i] = item;
                    break;
                }
            }
        }
        else
        {
            item.itemHeld += 1;
        }
        InventoryManager.RefreshItem();
        maincharacter.money -= 5;
    }

    public void WeaponLevelUp(Item item)
    {
        Debug.Log("character id : " + selected.id + " maximum:" + selected.weaponManager.maximum);

        if(item.itemName == "knife")
        {
            if (maincharacter.money < 5)
            {
                weaponDescription.text = "角色金钱不足";
                return;
            } 

            for(int i = 0; i < selected.weaponManager.maximum; i++)
            {
                if(selected.weaponManager.weapons[i] != null)
                {
                    if(selected.weaponManager.weapons[i].name == "knife")
                    {
                        selected.weaponManager.weapons[i].LevelUp();
                        maincharacter.money -= 5;
                        weaponDescription.text = "匕首已升级";
                        return;
                    }
                }
                
            }
            weaponDescription.text = "选中角色无该物品";
        }

        if(item.itemName == "sword")
        {
            if (maincharacter.money < 8)
            {
                weaponDescription.text = "角色金钱不足";
                return;
            } 

            for(int i = 0; i < selected.weaponManager.maximum; i++)
            {
                if(selected.weaponManager.weapons[i] != null)
                {
                    if(selected.weaponManager.weapons[i].name == "sword")
                    {
                        selected.weaponManager.weapons[i].LevelUp();
                        maincharacter.money -= 8;
                        weaponDescription.text = "长剑已升级";
                        return;
                    }
                }
                
            }
            weaponDescription.text = "选中角色无该物品";
        }

        if(item.itemName == "greatsword")
        {
            if (maincharacter.money < 10)
            {
                weaponDescription.text = "角色金钱不足";
                return;
            }   

            for(int i = 0; i < selected.weaponManager.maximum; i++)
            {
                if(selected.weaponManager.weapons[i] != null)
                {
                    if(selected.weaponManager.weapons[i].name == "greatsword")
                    {
                        selected.weaponManager.weapons[i].LevelUp();
                        maincharacter.money -= 10;
                        weaponDescription.text = "大剑已升级";
                        return;
                    }
                }
                
            }
            weaponDescription.text = "选中角色无该物品";
        }

        if(item.itemName == "lance")
        {
            if (maincharacter.money < 10)
            {
                weaponDescription.text = "角色金钱不足";
                return;
            }  

            for(int i = 0; i < selected.weaponManager.maximum; i++)
            {
                if(selected.weaponManager.weapons[i] != null)
                {
                    if(selected.weaponManager.weapons[i].name == "lance")
                    {
                        selected.weaponManager.weapons[i].LevelUp();
                        maincharacter.money -= 10;
                        weaponDescription.text = "长枪已升级";
                        return;
                    }
                }

            }
            weaponDescription.text = "选中角色无该物品";
        }
    }
}