《蒙琦游戏》

地幕端交互说明文档

步骤:

当踏入点进入—>判断踏入点是否踩到元素—>当踩到元素时触发的操作

• 使用（Touch Script）插件
• SubwayProjectionMain.cs（地幕端主逻辑，负责加载游戏配置文件、与电视机端通讯、显示不同的地幕模块）
• BaseBlock.cs （地幕功能块基类）
• AnswerLineBlock.cs （地幕功能块子类,表示各类功能区）
• ClickElement.cs (地幕元素基类)
• NumberBubble.cs (地幕元素子类,表示各种元素)
• SubwayEvent.cs (定义的事件)
• EventManager.cs (事件管理)
• IEventHandler.cs (时间手柄接口)
• PlayGame.cs (最终实现类)

1.检测点进入，触发事件

SubwayProjectionMain.cs

public class SubwayProjectionMain : MonoBehaviour, IEventHandler
{
    private BaseBlock curBlock = null; //当前显示的区块
    public AnswerLineBlock answerLineBlock;
    private BaseBlock GetPlayBlock()
    {
        return answerLineBlock;
    }
    void Start()
    {
        //赋值当前区块
        curBlock = GetPlayBlock();
        if (TouchManager.Instance != null)
        {
            //监听输入源事件（TouchSript已定义的事件，直接进行监听）
            TouchManager.Instance.PointersAdded += pointersUpdateHandler;
            TouchManager.Instance.PointersUpdated += pointersUpdateHandler;
            TouchManager.Instance.PointersRemoved += pointersRemovedHandler;
        }
    }
    //当检测到有输入源进入时
    private void pointersUpdateHandler(object sender, PointerEventArgs e)
    {
        if (curBlock && curBlock.gameObject.activeSelf)
        {
            //遍历接收到的点
            foreach (var pointer in e.Pointers)
            {
                //对每个点进行更新
                curBlock.OnUpdatePointer(pointer);
            }
        }
    }
}

更新点的方法，从区块到元素

BaseBlock.cs

//区块基类
public class BaseBlock : MonoBehaviour
{
    public virtual void OnUpdatePointer(Pointer pointer)
    {
    //区块基类虚方法
    }
}

AnswerLineBlock.cs

//区块子类
public class AnswerLineBlock : BaseBlock
{
    private List<NumberBubble> NumberBubbleList= new List<NumberBubble>(); //储存所有数字块
    public override void OnUpdatePointer(Pointer pointer)
    {
        base.OnUpdatePointer(pointer);
        foreach (NumberBubble number in NumberBubbleList)
        {
            if (number == null) continue;
            number.OnUpdatePointer(pointer);
        }
    }
}

2.判断踏入点是否踩到元素

元素基类

ClickElement.cs

public class ClickElement
{
    protected float pressedTime = 0; //按下时的计时时间
    public float pressToClickTime = 0.8f; //按下多久算点击
    protected int pressID = -1; //硬件对应的点的id
    public void OnUpdatePointer(Pointer pointer)
    {
        if (!this.gameObject.activeInHierarchy) return;
        float w, h;
        //将踏入点坐标从屏幕坐标转换为世界坐标
        var pos = Camera.main.ScreenToWorldPoint(pointer.Position);
        //获取该元素的宽高
        w = this.getWidth();
        h = this.getHeight();
        //判断踏入点是否在元素的范围内
        if (pos.x > this.transform.position.x - w / 2 && pos.x < this.transform.position.x + w / 2 && pos.y > this.transform.position.y - h / 2 && pos.y < this.transform.position.y + h / 2)
        {
            //如果是，执行按下处理。
            OnPressed(pointer.Id);
        }
        else
        {
            //如果不是，但之前记录过这个点是按下的，释放该点
            if (this.pressID == pointer.Id)
            {
                OnPointerOut(pointer.Id);
            }
        }
    }
    //按下处理
    public void OnPressed(int id)
    {
        if (!this.gameObject.activeInHierarchy) return;
        if (pressID == -1)
        {
            pressedTime = Time.time;
            pressID = id;
        }
    }
    //释放处理
    public void OnReleased(int id)
    {
        if (pressID == id)
        {
            pressedTime = 0;
            pressID = -1;
        }
    }
    //实时检测是否满足点击
    protected virtual void Update()
    {
        if (pressedTime > 0)
        {
            if (Time.time - pressedTime >= pressToClickTime)
            {
                pressedTime = 0;
                OnClickHandler();
            }
        }
    }
    //触发点击事件
    protected virtual void OnClickHandler()
    {
        print(gameObject.name + " clicked");
    }
}

3.满足点击条件，执行方法

元素子类

NumberBubble.cs

public class NumberBubble : ClickElement
{
    //在子类Update中实时检测是否满足点击
    protected override void Update()
    {
        base.Update();
    }
    //满足点击后触发事件
    protected override void OnClickHandler()
    {
        base.OnClickHandler();
        //事件处理器
        EventManager.GetInstance().DispachEvent(SubwayEvent.ENTER_GAME);
    }
}

定义事件

SubwayEvent.cs

public class SubwayEvent
{
    public const string ENTER_GAME = "Enter_Game"; //进入游戏
    public const string Exit_GAME = "Exit_Game"; //退出游戏
}

派发各类事件EventManager.GetInstance().DispachEvent

EventManager.cs

//事件处理器
public class EventManager
{
    //单例
    private static EventManager instance;
    public static EventManager GetInstance()
    {
        if (instance == null)
        {
            instance = new EventManager();
        }
        return instance;
    }
    //定义一个value为事件手柄列表的字典
    private Dictionary<string, List<IEventHandler>> dicHandler;
    // 注册事件监听
    public void AddEventListener(string type, IEventHandler listher)
    {
        if (!dicHandler.ContainsKey(type))
        {
            dicHandler.Add(type, new List<IEventHandler>());
        }
        dicHandler[type].Add(listher);
    }
    //派发事件
    public void DispachEvent(string type, object data = null)
    {
        List<IEventHandler> list = dicHandler[type];
        for (int i = 0; i < list.Count; i++)
        {
            list[i].OnEvent(type, data);
        }
    }
}

事件接口

IEventHandler.cs

public interface IEventHandler
{
    //事件手柄
    void OnEvent(string type, object data);
}

最终实现

PlayGame.cs

public class PlayGame : IEventHandler
{
    //事件接口处理
    public void OnEvent(string type, object data)
    {
        switch (type)
        {
            case SubwayEvent.ENTER_GAME:
            //开始游戏
                break;
            case SubwayEvent.EXIT_GAME:
            //退出游戏
                break;
        }
    }
}