kinect的换装代码ModelSelector的解释

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


public class ModelSelector : MonoBehaviour 
{
	[Tooltip("Index of the player, tracked by this component. 0 means the 1st player, 1 - the 2nd one, 2 - the 3rd one, etc.")]
    //用户的下标
	public int playerIndex = 0;

	[Tooltip("The model category. Used for model discovery and title of the category menu.")]
    //选择的内容
	public string modelCategory = "Clothing";

	[Tooltip("Total number of the available clothing models.")]
    //模型的数量
	public int numberOfModels = 2;

//	[Tooltip("Screen x-position of the model selection window. Negative values are considered relative to the screen width.")]
//	public int windowScreenX = -160;

	[Tooltip("Reference to the dresing menu.")]
    //穿着菜单
	public RectTransform dressingMenu;

	[Tooltip("Reference to the dresing menu-item prefab.")]
    //穿着项目预制体
	public GameObject dressingItemPrefab;

	[Tooltip("Makes the initial model position relative to this camera, to be equal to the player's position, relative to the sensor.")]
    //对准人物的相机
	public Camera modelRelativeToCamera = null;

	[Tooltip("Camera used to estimate the overlay position of the model over the background.")]
    //前景的相机
	public Camera foregroundCamera;

	[Tooltip("Whether to keep the selected model, when the model category gets changed.")]
    //保持选择模型
	public bool keepSelectedModel = true;

	[Tooltip("Whether the scale is updated continuously or just once, after the calibration pose.")]
    //是否一直刷新比例
	public bool continuousScaling = true;

	[Tooltip("Full body scale factor (incl. height, arms and legs) that might be used for fine tuning of body-scale.")]
	[Range(0.0f, 2.0f)]
    //身体比例因素
	public float bodyScaleFactor = 1.0f;

	[Tooltip("Body width scale factor that might be used for fine tuning of the width scale. If set to 0, the body-scale factor will be used for the width, too.")]
	[Range(0.0f, 2.0f)]
    //身体宽度比例因素
	public float bodyWidthFactor = 1.0f;

	[Tooltip("Additional scale factor for arms that might be used for fine tuning of arm-scale.")]
	[Range(0.0f, 2.0f)]
    //手臂的比例因素
	public float armScaleFactor = 1.0f;

	[Tooltip("Additional scale factor for legs that might be used for fine tuning of leg-scale.")]
	[Range(0.0f, 2.0f)]
    //腿部的比例因素
	public float legScaleFactor = 1.0f;

	[Tooltip("Vertical offset of the avatar with respect to the position of user's spine-base.")]
	[Range(-0.5f, 0.5f)]
    //上下移动
	public float verticalOffset = 0f;

	[Tooltip("Forward (Z) offset of the avatar with respect to the position of user's spine-base.")]
	[Range(-0.5f, 0.5f)]
    //前后移动
	public float forwardOffset = 0f;

	[Tooltip("Whether to apply the humanoid model's muscle limits to the avatar, or not.")]
    //是否应用化身人形肌肉模型的限制,
    private bool applyMuscleLimits = false;

	[Tooltip("Gender filter of this model selector.")]
    //性别筛选器
	public UserGender modelGender = UserGender.Unisex;

	[Tooltip("Minimum age filter of this model selector.")]
    //最小的年龄
	public float minimumAge = 0;

	[Tooltip("Maximum age filter of this model selector.")]
    //最大的年龄
	public float maximumAge = 1000;


	[HideInInspector]
    //是否使用选择器
	public bool activeSelector = false;

//	[Tooltip("GUI-Text to display the avatar-scaler debug messages.")]
//	public UnityEngine.UI.Text debugText;


	// Reference to the dresing menu list title
    //穿着菜单标题
	private Text dressingMenuTitle;

	// Reference to the dresing menu list content
    //穿着菜单内容
	private RectTransform dressingMenuContent;

	// list of instantiated dressing panels
    //实例化菜单内容
	private List dressingPanels = new List();

	//private Rect menuWindowRectangle;
    //衣服的名字
	private string[] modelNames;
    //衣服的图片
	private Texture2D[] modelThumbs;

    //滚动
	private Vector2 scroll;
    //选择
	private int selected = -1;
    //之前的选择
	private int prevSelected = -1;

    //选择的模型
	private GameObject selModel;

    //当前的比例因素
	private float curScaleFactor = 0f;
    //当前的偏移
	private float curModelOffset = 0f;


    bool isSelcetone = false;

    /// 

    /// Sets the model selector to be active or inactive.
    /// 将模型选择器设置为活动或非活动。
    /// 
    /// If set to true b active.
    public void SetActiveSelector(bool bActive)
	{
        //获取选择
		activeSelector = bActive;

        //判断穿着是否使用
		if (dressingMenu) 
		{
			dressingMenu.gameObject.SetActive(activeSelector);
		}

        //如果选择和不保持当前的模型
		if (!activeSelector && !keepSelectedModel) 
		{
            //摧毁选择的模型
			DestroySelectedModel();
		}
	}


	/// 

	/// Gets the selected model.
    /// 获取选怎的模型
	/// 
	/// The selected model.
	public GameObject GetSelectedModel()
	{
		return selModel;
	}


	/// 

	/// Destroys the currently selected model.
    /// 销毁当前选择的模型
	/// 
	public void DestroySelectedModel()
	{
        //当前选择了模型
		if (selModel) 
		{
            //获取模型的骨骼控制器
			AvatarController ac = selModel.GetComponent();
            //获取kinect
			KinectManager km = KinectManager.Instance;

            //都不为空
			if (ac != null && km != null) 
			{
                //移除骨骼控制器
				km.avatarControllers.Remove(ac);
			}
            //销毁模型
			GameObject.Destroy(selModel);
            //模型选择为空
			selModel = null;
            //记录为-1
			prevSelected = -1;
		}
	}


	/// 

	/// Selects the next model.
    /// 选择下一个模型
	/// 
	public void SelectNextModel()
	{
        //选择数++
		selected++;
        //大于最大数 归0
		if (selected >= numberOfModels) 
			selected = 0;

		//LoadModel(modelNames[selected]);
		OnDressingItemSelected(selected);
	}

	/// 

	/// Selects the previous model.
	/// 
	public void SelectPrevModel()
	{
		selected--;
		if (selected < 0) 
			selected = numberOfModels - 1;

		//LoadModel(modelNames[selected]);
		OnDressingItemSelected(selected);
	}


	void Start()
	{
		// get references to menu title and content
		if (dressingMenu) 
		{
			Transform dressingHeaderText = dressingMenu.transform.Find("Header/Text");
			if (dressingHeaderText) 
			{
				dressingMenuTitle = dressingHeaderText.gameObject.GetComponent();
			}

			Transform dressingViewportContent = dressingMenu.transform.Find("Scroll View/Viewport/Content");
			if (dressingViewportContent) 
			{
				dressingMenuContent = dressingViewportContent.gameObject.GetComponent();
			}
		}

		// create model names and thumbs
        //创建名字的数组和衣服图片的数组
		modelNames = new string[numberOfModels];
		modelThumbs = new Texture2D[numberOfModels];
        //清空链表
		dressingPanels.Clear();

		// instantiate menu items
        //创建菜单的实例
		for (int i = 0; i < numberOfModels; i++)
		{
            //获取名字
			modelNames[i] = string.Format("{0:0000}", i);

            //获取图片的路径
			string previewPath = modelCategory + "/" + modelNames[i] + "/preview.jpg";
            //从resources中加载纹理
			TextAsset resPreview = Resources.Load(previewPath, typeof(TextAsset)) as TextAsset;

            //如果纹理为空
			if (resPreview == null) 
			{
                //就加载nopreview.jpg的图片
				resPreview = Resources.Load("nopreview.jpg", typeof(TextAsset)) as TextAsset;
			}

			//if(resPreview != null)
			{
				modelThumbs[i] = CreatePreviewTexture(resPreview != null ? resPreview.bytes : null);
			}

            //实例化穿着菜单栏
			InstantiateDressingItem(i);
		}

		// select the 1st item
        //默认选择第一个
		if (numberOfModels > 0) 
		{
			selected = 0;
		}

		// set the panel title
        //设置菜单栏的名称
		if (dressingMenuTitle) 
		{
			dressingMenuTitle.text = modelCategory;
		}

        // save current scale factors and model offsets
        //保存当前规模因素和补偿模型
        curScaleFactor = bodyScaleFactor + bodyWidthFactor + armScaleFactor + legScaleFactor;
		curModelOffset = verticalOffset + forwardOffset + (applyMuscleLimits ? 1f : 0f);
	}

	void Update()
	{
        // check for selection change
        //检查选择改变
        //能够选择为true  在选择的范围内 之前的选择和选择不同
        if (activeSelector && selected >= 0 && selected < modelNames.Length && prevSelected != selected)
		{
            //获取体感控制器
			KinectManager kinectManager = KinectManager.Instance;

            //如果体感控制器存在 并且能够单例 能够识别用户
			if (kinectManager && kinectManager.IsInitialized () && kinectManager.IsUserDetected(playerIndex)) 
			{
                //穿上选择的衣服
				OnDressingItemSelected(selected);
			}
		}

        //如果选择的不为空
		if (selModel != null) 
		{
            // update model settings as needed
            //根据需要更新模型的设置
            float curMuscleLimits = applyMuscleLimits ? 1f : 0f;
            //当前的偏移-（上下的偏移+前后的偏移+是否使用肌肉的限制）
			if (Mathf.Abs(curModelOffset - (verticalOffset + forwardOffset + curMuscleLimits)) >= 0.001f) 
			{
				// update model offsets
                //更新模型的偏移
				curModelOffset = verticalOffset + forwardOffset + curMuscleLimits;

                //获取模型的骨骼控制器
				AvatarController ac = selModel.GetComponent();
                //模型控制器不为空
				if (ac != null) 
				{
                    //获取上下的偏移
					ac.verticalOffset = verticalOffset;
                    //获取前后的偏移
					ac.forwardOffset = forwardOffset;
                    //获取肌肉的限制数
					ac.applyMuscleLimits = applyMuscleLimits;
				}
			}

            //当前当前的大小因素-（身体的因素+身体宽度的因素+肩膀的因素+腿部的因素）大于0.001
			if (Mathf.Abs(curScaleFactor - (bodyScaleFactor + bodyWidthFactor + armScaleFactor + legScaleFactor)) >= 0.001f) 
			{
				// update scale factors
                //更新
				curScaleFactor = bodyScaleFactor + bodyWidthFactor + armScaleFactor + legScaleFactor;

                //获取骨骼的比例
				AvatarScaler scaler = selModel.GetComponent();
                //不为空的话
				if (scaler != null) 
				{
                    //获取当前的比例
					scaler.continuousScaling = continuousScaling;
					scaler.bodyScaleFactor = bodyScaleFactor;
					scaler.bodyWidthFactor = bodyWidthFactor;
					scaler.armScaleFactor = armScaleFactor;
					scaler.legScaleFactor = legScaleFactor;
				}
			}
		}
	}
	
    /// 

    /// 创建显示的图片
    /// 
    /// 
    /// 
	private Texture2D CreatePreviewTexture(byte[] btImage)
	{
		Texture2D tex = new Texture2D(4, 4);
		//Texture2D tex = new Texture2D(100, 143);

        //字节组的图片不为空
		if (btImage != null) 
		{
            //加载
			tex.LoadImage (btImage);
		}
		
		return tex;
	}

    // instantiates dressing menu item
    //实例化着装菜单项
    private void InstantiateDressingItem(int i)
	{
		if (!dressingItemPrefab && i >= 0 && i < numberOfModels)
			return;

		GameObject dressingItemInstance = Instantiate(dressingItemPrefab);

		GameObject dressingImageObj = dressingItemInstance.transform.Find("DressingImagePanel").gameObject;
		dressingImageObj.GetComponentInChildren().texture = modelThumbs[i];

		if(!string.IsNullOrEmpty(modelNames[i])) 
		{
			EventTrigger trigger = dressingItemInstance.GetComponent();
			EventTrigger.Entry entry = new EventTrigger.Entry();

			entry.eventID = EventTriggerType.Select;
			entry.callback.AddListener ((eventData) => { OnDressingItemSelected(i); });

			trigger.triggers.Add(entry);
		}

		if (dressingMenuContent) 
		{
			dressingItemInstance.transform.SetParent(dressingMenuContent, false);
		}

		dressingPanels.Add(dressingItemInstance);
	}

    // invoked when dressing menu-item was clicked
    //菜单项的单击时调用
    private void OnDressingItemSelected(int i)
	{
        //在选择的范围呢，并且与之前选择是不一样
		if (i >= 0 && i < modelNames.Length && prevSelected != i)
		{
            //改变参数
			prevSelected = selected = i;
            //加载选择的模型
			LoadDressingModel(modelNames[selected]);
		}
	}


    int count = 0;
    public  GameObject currenthat;
    // sets the selected dressing model as user avatar
    //设置所选模型打扮成用户骨骼
    private void LoadDressingModel(string modelDir)
    {
        //设置路径
        string modelPath = modelCategory + "/" + modelDir + "/model";
        //获取预制体
        UnityEngine.Object modelPrefab = Resources.Load(modelPath, typeof(GameObject));
        //如果为空
        if (modelPrefab == null)
            return;

        Debug.Log("Model: " + modelPath);


        //不为空删除当前的模型
        if (selModel != null)
        {
            if (modelDir != "0001")
            {
                GameObject.Destroy(selModel);
            }
            else if(modelDir == "0001")
            {
          
                print(isSelcetone);
                if (isSelcetone)
                {
                    Destroy(selModel);
                }
                isSelcetone = true;
            }
        }

            //实例一个新的模型
            selModel = (GameObject)GameObject.Instantiate(modelPrefab, Vector3.zero, Quaternion.Euler(0, 180f, 0));
            //名字为路径名
            selModel.name = "Model" + modelDir;
        if (isSelcetone&& modelDir=="0000")
        {
            Destroy(selModel);
        }

            //获取骨骼控制器
            AvatarController ac = selModel.GetComponent();
            //骨骼控制器为空
            if (ac == null)
            {
                //获取当前的骨骼控制器
                ac = selModel.AddComponent();
                //下标对应
                ac.playerIndex = playerIndex;

                //镜像使用
                ac.mirroredMovement = true;
                //允许上下移动
                ac.verticalMovement = true;
                //获取肌肉的限制度
                ac.applyMuscleLimits = applyMuscleLimits;

   
              //获取上下的偏移量
              ac.verticalOffset = verticalOffset;
             //获取前后的偏移量
              ac.forwardOffset = forwardOffset;

            //平滑度
            ac.smoothFactor = 0f;
            }

            //将骨骼对准选择的摄像头
            ac.posRelativeToCamera = modelRelativeToCamera;
            //是否覆盖彩色摄像头
            ac.posRelOverlayColor = (foregroundCamera != null);

            //获取单例
            KinectManager km = KinectManager.Instance;
            //ac.Awake();

            //如果存在并且具有单例模式
            if (km && km.IsInitialized())
            {
                //获取用户的下标
                long userId = km.GetUserIdByIndex(playerIndex);
                //下标不等于0
                if (userId != 0)
                {
                    //成功的校准用户的位置
                    ac.SuccessfulCalibration(userId, false);
                }

                // locate the available avatar controllers
                //查找可以使用的体感控制器
                MonoBehaviour[] monoScripts = FindObjectsOfType(typeof(MonoBehaviour)) as MonoBehaviour[];
                //对kinect的骨骼控制器清空
                km.avatarControllers.Clear();

                //遍历所有的mono
                foreach (MonoBehaviour monoScript in monoScripts)
                {
                    //当前的类是骨骼控制器类 并且正在使用
                    if ((monoScript is AvatarController) && monoScript.enabled)
                    {
                        //获取当前的骨骼控制器
                        AvatarController avatar = (AvatarController)monoScript;
                        //添加
                        km.avatarControllers.Add(avatar);
                    }
                }
            }

            //获取骨骼尺寸类
            AvatarScaler scaler = selModel.GetComponent();
            //等于空的情况
            if (scaler == null)
            {
                //添加骨骼尺寸
                scaler = selModel.AddComponent();
                //获取人物的下标
                scaler.playerIndex = playerIndex;
                //镜像模式
                scaler.mirroredAvatar = true;

                //添加参数
                scaler.continuousScaling = continuousScaling;
                scaler.bodyScaleFactor = bodyScaleFactor;
            	scaler.bodyWidthFactor = bodyWidthFactor;
            	scaler.armScaleFactor = armScaleFactor;
            	scaler.legScaleFactor = legScaleFactor;
        }

            //获取前景摄像机
            scaler.foregroundCamera = foregroundCamera;
            //scaler.debugText = debugText;

            //scaler.Start();
        }
    
}