UGUI背包（二）鼠标移动会显示信息框，拖拽物品

来源：互联网发布：手机移动数据怎么关闭编辑：程序博客网时间：2024/05/24 02:54

using UnityEngine;using System.Collections;using UnityEngine.EventSystems;//using System;//Action是命名空间下的委托public class GridUI : MonoBehaviour ,IPointerEnterHandler,IPointerExitHandler,IBeginDragHandler,IDragHandler,IEndDragHandler{//前两个是鼠标显示信息框的，后两个是物品拖拽的    public static Action<Transform> OnEnter;//定义静态事件    public static Action OnExit;//定义静态事件    public void OnPointerEnter(PointerEventData evenData){//鼠标进入UI调用该方法        if (evenData.pointerEnter.tag == "Grid") {            if(OnEnter !=null){                OnEnter (transform);//传参                Debug.Log("进入");            }        }    }    public void OnPointerExit(PointerEventData evenData){//鼠标离开UI调用该方法        if (evenData.pointerEnter.tag == "Grid") {            if(OnExit !=null){                OnExit ();                Debug.Log ("离开");            }        }    }    public static Action<Transform> OnLeftBeginDrag;//左键开始拖拽    public static Action<Transform,Transform> OnLeftEndDrag;//左键结束拖拽(当前自己的，拖拽后的)    public void OnBeginDrag(PointerEventData evenData){        if(evenData.button == PointerEventData.InputButton.Left){//左键按下            if(OnLeftBeginDrag !=null){                OnLeftBeginDrag (transform);//调用事件            }        }    }    public void OnDrag(PointerEventData evenData){    }    public void OnEndDrag(PointerEventData evenData){        if(evenData.button == PointerEventData.InputButton.Left){//左键按下结束            if(OnLeftEndDrag !=null){                if(evenData.pointerEnter == null)//没放到UI上                    OnLeftEndDrag (transform, null);//调用事件                else                    OnLeftEndDrag (transform,evenData.pointerEnter.transform);            }        }    }}

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做UI界面要注意，因为信息框是随着信息的多少而放大缩小的

这里写图片描述

这里要注意，tooltip和Content都是text

这里写图片描述

using UnityEngine;using System.Collections;using System.Collections.Generic;//list，泛型的命名空间using System.Text;//StringBuilder//背包的所有操作，存，取，扔public class KnapsackManager : MonoBehaviour {    private static KnapsackManager _instance;//单例模式，全局调用和访问    public static KnapsackManager Instance{ get{ return _instance;}}    public Dictionary<int,Item> ItemList ;//定义字典,    public DragItemUI DragItemUI;    public GridPanelUI GridPanelUI;//获取组件    private bool isShow = false;//是否显示    private bool isDrag = false;//是否拖拽    public ToolTipsUI ToolTipsUI;//信息框    void Awake(){        //赋值        _instance = this;        //数据        Load ();        //事件        GridUI.OnEnter +=GridUI_OnEnter;        GridUI.OnExit += GridUI_OnExit;        GridUI.OnLeftBeginDrag += GridUI_OnLeftBeginDrag;        GridUI.OnLeftEndDrag += GridUI_OnLeftEndDrag;    }    void Update(){//信息框出现在鼠标下面        Vector2 position;        RectTransformUtility.ScreenPointToLocalPointInRectangle(GameObject.Find("KnapsackUI").transform as RectTransform, Input.mousePosition, null, out position);        if(isDrag){            DragItemUI.Show ();            DragItemUI.SetLocalPosition(position);        }        else if (isShow) {            ToolTipsUI.Show ();            ToolTipsUI.SetLocalPosition(position);        }    }    private void GridUI_OnEnter(Transform gridTransform){//事件回调（进入）        Item item = ItemModel.GetItem (gridTransform.name);//得到保存的数据        if (item == null)            return;        string text = GetTooltipText (item);        ToolTipsUI.UpdateTooltip (text);//不是空，显示item        Debug.Log(item.Name);        isShow = true;    }    private  void GridUI_OnExit(){//事件回调（退出）        isShow = false;        ToolTipsUI.Hide();        Debug.Log ("退出");    }    private void GridUI_OnLeftBeginDrag(Transform gridTransform){//开始拖拽        if (gridTransform.childCount == 0)            return;        else {            Item item = ItemModel.GetItem (gridTransform.name);//获取信息            DragItemUI.UpdateItem(item.Name);            Destroy (gridTransform.GetChild(0).gameObject);//拖拽后原来地方的字体消失            //ItemModel.DeleteItem(gridTransform.name);//删除数据            isDrag = true;        }    }    private void GridUI_OnLeftEndDrag(Transform preTransform, Transform enterTransform){        isDrag = false;        DragItemUI.Hide ();        if(enterTransform == null){//扔东西            ItemModel.DeleteItem (preTransform.name);            Debug.Log ("你已经扔掉了");        }        else if (enterTransform.tag == "Grid") {//拖到另一个或者当前格子里            if (enterTransform.childCount == 0) {//直接扔进去                Item item = ItemModel.GetItem(preTransform.name);//获取数据                this.CreateNewItem(item,enterTransform);                //删除原来的数据，保存现在的数据                ItemModel.DeleteItem (preTransform.name);            } else             {//交换                //删除原来的物品                Destroy(enterTransform.GetChild(0).gameObject);                //获取数据                Item prevGirdItem = ItemModel.GetItem (preTransform.name);                Item enterGridItem = ItemModel.GetItem (enterTransform.name);//进入的格子的信息                //交换两个物体                this.CreateNewItem(prevGirdItem,enterTransform);                this.CreateNewItem (enterGridItem,preTransform);            }        } else {//拖到UI其他地方，还原            Item item = ItemModel.GetItem(preTransform.name);            this.CreateNewItem(item,preTransform);        }    }    private string GetTooltipText(Item item){//得到显示的文字        if (item == null)            return "";        StringBuilder sb = new StringBuilder ();        sb.AppendFormat ("{0}\n\n",item.Name);        switch(item.ItemType){        case "Armor":            Armor armor = item as Armor;            sb.AppendFormat ("力量:{0}\n防御:{1}\n敏捷:{2}\n\n", armor.Power, armor.Defend, armor.Agility);//追加字符串            break;        case "Consumable":            Consumable consumable = item as Consumable;            sb.AppendFormat ("HP:{0}\nMP:{1}\n\n", consumable.BackHP,consumable.BackMP);            break;        case "Weapon":            Weapon weapon = item as Weapon;            sb.AppendFormat ("攻击:{0}\n\n",weapon.gongjili);            break;        default:            break;        }        sb.AppendFormat ("购买价格:{0}\n出售价格:{1}\n\n描述:{2}", item.BUYPrice, item.SELLPrice, item.Description);        return sb.ToString();    }    public void StoreItem(int itemId){//存储物品        if(!ItemList.ContainsKey(itemId)){//当前字典没有这个ID            return;        }        Transform emptygrid = GridPanelUI.GetEmptyGrid ();//取到一个格子        if(emptygrid == null){//取到的格子是空的，表示背包满了            Debug.LogWarning ("背包满了");            return;        }        Item temp = ItemList[itemId];//有这个ID，就获取到了信息（取出来了item）        this.CreateNewItem (temp,emptygrid);    }    private void Load(){//模拟取数据的过程，加载        ItemList = new Dictionary<int,Item> ();//声明list集合,        Weapon w1 = new Weapon (0,"牛刀","厉害的刀",20,10,"",100);        Weapon w2 = new Weapon (1,"羊刀","杀羊刀",15,10,"",200);        Consumable c1 = new Consumable (2,"红瓶","加血",25,11,"",29,50);        Consumable c2 = new Consumable (3,"蓝瓶","加蓝",30,50,"",40,39);        Consumable c3 = new Consumable (4,"大红瓶","加血",25,11,"",20,49);        Consumable c4 = new Consumable (5,"大蓝瓶","加蓝",30,50,"",40,38);        Armor a1 = new Armor (6,"头盔","保护脑袋",120,83,"",5,40,1);        Armor a2 = new Armor (7,"护肩","保护肩膀",130,68,"",5,4,8);        ItemList.Add(w1.ID,w1);        ItemList.Add(w2.ID,w2);        ItemList.Add(c1.ID,c1);        ItemList.Add(c2.ID,c2);        ItemList.Add(c3.ID,c3);        ItemList.Add(c4.ID,c4);        ItemList.Add(a1.ID,a1);        ItemList.Add(a2.ID,a2);    }    private void CreateNewItem(Item item,Transform parent){        GameObject itemPrefab =  Resources.Load<GameObject> ("Prefabs/Item");//创建Item，动态加载        itemPrefab.GetComponent<ItemUI> ().UpdateItem (item.Name);//更新显示        GameObject itemGO = GameObject.Instantiate(itemPrefab);//实例化出来，（加载和实例化不同）        itemGO.transform.SetParent(parent);        //位置和缩放初始化        itemGO.transform.localPosition = Vector3.zero;        itemGO.transform.localScale = Vector3.one;        ItemModel.StoreItem (parent.name,item);//信息存储    }}

using UnityEngine;using System.Collections;using UnityEngine.UI;public class ToolTipsUI : MonoBehaviour {    public Text OutLineText;//边框    public Text ContentText;//显示内容    public void UpdateTooltip(string text){//更新UI的介绍        OutLineText.text = text;        ContentText.text = text;        Debug.Log ("刷新");    }    //显示和隐藏    public void Show(){        gameObject.SetActive (true);        Debug.Log ("显示");    }    public void Hide(){        gameObject.SetActive (false);        Debug.Log ("隐藏");    }    public void SetLocalPosition(Vector2 position){        transform.localPosition = position;    }}

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