Unity3D自学笔记——UGUI背包系统（八）物品的分类与整理

物品的分类与整理

效果图

全部

装备

药水

其他

实现功能

1.全部显示背包的所有格子及所有物品
2.分类显示该类物品及该类物品个数的格子
3.不管是哪个面板的装备进行了更新，其余面板都应更新
4.数量显示当前格子数量和总数量

例如
从装备Tab装备一个装备至角色身上

装备分页该装备要消失

并且在全部分页中也应该对应消失

实现逻辑

1.有两个背包容器，一个为全部的物品，格子数量初始化固定，另一个为部分的物品，格子数量动态变化，切换标签页时对应隐藏背包容器
2.新建一个PartItemList用来存放分页的物品
3.每次切换标签的时候，进行计算，从ItemList里面进行筛选出对应分类的Item，添加至PartItemList
4.遍历PartItemList添加格子和物品，更新数量
5.当ItemList的Item发生变化时，即添加或移除物品，也要执行3和4步骤

实现步骤

1.复制一份背包容器的UI，并且重新命名为pnlScrollPartView

2.新建存放分页Item的List

    private Dictionary<int, ItemStatus> m_ItemList; //背包中的Item
    private List m_PartItemList; //背包分页中的Item

3.新建一个枚举值，存放当前所点击的标签，默认为All

private enum TabType
    {
        All,
        Equip,
        Potion,
        Other
    }

private TabType m_TabType = TabType.All;

4.添加向分页添加物品及刷新的方法

 /// 

    /// 向分页添加物品
    /// 
    private void AddItemToPartGrid(List itemList)
    {
        //初始化分页格子数量为PartItemList的数量
        InitGrid(this.m_PnlPartGrid, itemList.Count, this.m_PartGridList);
        for (int i = 0; i < itemList.Count; i++)
        {
            GameObject go = GameObject.Instantiate(this.m_ItemPrefab);
            go.transform.SetParent(this.m_PartGridList[i]);
            go.GetComponent().SetInfo(itemList[i]);
            go.transform.localPosition = Vector3.zero;
            go.transform.localScale = Vector3.one;
            go.GetComponent().PointerClick += OnUIItemPointerClick;
        }
    }

/// 

    /// 刷新分页
    /// 
    private void RefreshPartGrid()
    {
        switch (this.m_TabType)
        {
            case TabType.Equip:
                this.m_PartItemList = m_ItemList
                   .Select(i => i.Value).Cast()
                   .Where(d =>
                       d.WhereType == WhereType.Knapsack
                       && (d.ItemType == ItemType.Weapon
                       || d.ItemType == ItemType.Armor
                       || d.ItemType == ItemType.Ring
                       || d.ItemType == ItemType.Necklace)
                       ).ToList();
                break;
            case TabType.Potion:
                m_PartItemList = m_ItemList
                    .Select(i => i.Value).Cast()
                    .Where(d =>
                        d.WhereType == WhereType.Knapsack
                        && d.ItemType == ItemType.Potion
                        ).ToList();
                break;
            case TabType.Other:
                m_PartItemList = m_ItemList
                    .Select(i => i.Value).Cast()
                    .Where(d =>
                        d.WhereType == WhereType.Knapsack
                        && d.ItemType == ItemType.Other
                        ).ToList();
                break;
        }
        if(this.m_PartItemList != null)
            AddItemToPartGrid(this.m_PartItemList);

        UpdateCount();
    }

private void UpdateCount()
    {
        string countStr;
        if (this.m_TabType == TabType.All)
        {
            countStr = string.Format("{0} / {1}", this.m_ItemList.Count, gridCount);
        }
        else
        {
            countStr = string.Format("{0} / {1}", this.m_PartItemList.Count, gridCount);
        }

        this.m_txtCount.text = countStr;
    }

5.在标签点击事件里更改m_TapType属性值，并进行取值刷新

 private void BtnEquipPointerClick(PointerEventData obj)
    {
        this.m_PnlGrid.parent.gameObject.SetActive(false);
        this.m_PnlPartGrid.parent.gameObject.SetActive(true);
        this.m_TabType = TabType.Equip;
        RefreshPartGrid();
    }
    private void BtnPotionPointerClick(PointerEventData obj)
    {
        this.m_PnlGrid.parent.gameObject.SetActive(false);
        this.m_PnlPartGrid.parent.gameObject.SetActive(true);
        this.m_TabType = TabType.Potion;
        RefreshPartGrid();
    }
    private void BtnOtherPointerClick(PointerEventData obj)
    {
        this.m_PnlGrid.parent.gameObject.SetActive(false);
        this.m_PnlPartGrid.parent.gameObject.SetActive(true);
        this.m_TabType = TabType.Other;
        RefreshPartGrid();
    }
    private void BtnAllPointerClick(PointerEventData obj)
    {
        this.m_PnlGrid.parent.gameObject.SetActive(true);
        this.m_PnlPartGrid.parent.gameObject.SetActive(false);
        this.m_TabType = TabType.All;
        UpdateCount();
    }

6.在AddItem和RemoveItem中也添加刷新方法

public void AddItem(UserItemEntity item)
    {
        Transform grid = GetEnmptyGrid();
        if (grid == null) //背包已满
            return;
        if (!m_ItemEntityList.ContainsKey(item.ID))
            return;

        GameObject go = GameObject.Instantiate(this.m_ItemPrefab);
        go.transform.SetParent(grid);
        ItemStatus itemStatus = go.GetComponent().SetInfo(item);
        go.transform.localPosition = Vector3.zero;
        go.transform.localScale = Vector3.one;
        go.GetComponent().PointerClick += OnUIItemPointerClick;

        if (m_ItemList.ContainsKey(itemStatus.ItemID))
        {
            m_ItemList[itemStatus.ItemID] = itemStatus;
        }
        else
        {
            m_ItemList.Add(itemStatus.ItemID, itemStatus);
        }

        RefreshPartGrid();
    }

public void RemoveItem(ItemStatus itemStatus)
    {
        itemStatus.Count -= 1;

        if (itemStatus.Count == 0)
        {//销毁物品
            this.m_ItemList.Remove(itemStatus.ItemID);
            DestroyImmediate(itemStatus.gameObject);
        }
        else
        {//更新数量显示
            itemStatus.gameObject.GetComponent().UpdateCount();
        }

        RefreshPartGrid();
    }    

整理

就是重新初始化背包

private void BtnRestorePointerClick(PointerEventData obj)
    {
        InitGrid(this.m_PnlGrid, gridCount, m_GridList);
        LoadData();
    }