unity 加载图片、播放spine、隐藏物体等

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using System.IO;

using System.Runtime.InteropServices;    //添加如下命名空间 需要是用 DllImport

//引用内存映射文件命名空间

using System.IO.MemoryMappedFiles;

using System.Security.Principal;

using UnityEngine.Networking;

using Spine.Unity;

using UnityEngine.UI;

 

public class NewBehaviourScript : MonoBehaviour

{

[DllImport(@"unitydll", EntryPoint = "testhello")]

    public static extern int testhello(int a, int b);

[DllImport(@"unitydll", EntryPoint = "CreateSharedMemory")]

    public static extern void CreateSharedMemory();

[DllImport(@"unitydll", EntryPoint = "DestorySharedMemory")]

    public static extern void DestorySharedMemory();

[DllImport(@"unitydll", EntryPoint = "SetVCamData")]

    //public static extern void SetVCamData(const unsigned char* lpcData, int nSrcWidth, int nSrcHeight);

public static extern void SetVCamData(System.Byte[] lpcData, int nSrcWidth, int nSrcHeight, int len);

    [DllImport(@"user32.dll", EntryPoint = "ShowWindow")]

    public static extern bool ShowWindow(System.IntPtr hwnd, int nCmdShow);

    [DllImport("user32.dll", EntryPoint = "GetForegroundWindow")]

    public static extern System.IntPtr GetForegroundWindow();

 

    [DllImport("user32.dll", SetLastError = true)]

    private static extern System.IntPtr FindWindow(string lpClassName, string lpWindowName);

 

//[DllImport(@"unitydll", EntryPoint = "GetVCamData")]

   // public static extern BOOL GetVCamData(System.Byte[] lpcData, int& width, int& height);

public Camera mainCam; //待截图的目标摄像机

    RenderTexture rt;  //声明一个截图时候用的中间变量 

    Texture2D t2d ;

    int num = 0;  //截图计数

int sum2 = 0;

int imageWidth = 800;

int imageHeight = 600;

 

//定义游戏物体

GameObject m_obj;

//定义游戏物体（spine动画对象）

GameObject m_obj2;

//定义静态图片

GameObject m_obj3;

public string _Path ="Assets/pic/Dwarf.png";

//public string _Path ="E:/work/Unity-3D/pic/Dwarf.png";

    public string _texname = "Dwarf.png";

    private Texture2D m_Tex;

//定义静态图片

 

    void Start () {

//找到物体

m_obj = GameObject.Find("3dgift_loli_dance01");

//找到spine动画物体

m_obj2 = GameObject.Find("Spine GameObject (game_wx_role1_4)");

//设置帧率

Application.targetFrameRate=15;

        t2d = new Texture2D(800,600,TextureFormat.RGBA32,false);

        rt = new RenderTexture(800, 600, 32);

        mainCam.targetTexture = rt;

Debug.Log("test **********");

sum2 = testhello(3,4);

Debug.Log("调用dll接口："+sum2.ToString());

//CreateSharedMemory();

//加载静态图片

m_obj3 = GameObject.CreatePrimitive(PrimitiveType.Plane);

//GameObject go = GameObject.CreatePrimitive(PrimitiveType.Cube);

m_obj3.transform.localRotation = Quaternion.Euler(new Vector3(90, 0,0));//旋转

//m_obj3.transform.localScale = new Vector3 (4.0f, 4.0f, 4.0f);//缩放

//m_obj3.transform.position = new Vector3 (0.0f, 0.0f, 0.0f);//位置

        Renderer rend = m_obj3.GetComponent();

LoadFromFile(_Path,_texname);

rend.material.mainTexture = m_Tex;

//静态图片

//隐藏窗口

//ShowWindow(FindWindow(null, "New Unity Project9"), 0);

    }

void Awake(){

 Debug.Log("Awake");

}

    

    void Update () {

//开始播放动画

if (Input.GetKeyDown(KeyCode.W))

{

m_obj.transform.GetComponent().wrapMode = WrapMode.Loop;

//播放指定动画

m_obj.transform.GetComponent().Play ("jump");

//播放默认动画

//m_obj.transform.GetComponent().Play ();

}

//停止播放动画

if (Input.GetKeyDown(KeyCode.Q))

{

m_obj.transform.GetComponent().wrapMode = WrapMode.Loop;

//停止指定动画播放

m_obj.transform.GetComponent().Stop ("jump");

//停止所有动画播放

//m_obj.transform.GetComponent().Stop ();

}

//显示、隐藏物体

if (Input.GetKeyDown(KeyCode.E))

{

//控制播放spine动画

SkeletonAnimation skeletonAnimation = m_obj2.transform.GetComponent();

Spine.AnimationState spineAnimationState = skeletonAnimation.state;

spineAnimationState.SetAnimation(0, "attack2", true);//第一个参数为优先级，第二个参数是动画的名字，第三个参数 true是循环播放，false是只播放一次。 此方法只适合播放一个动画

//spineAnimationState.addAnimation(0, "walk", true);//播放新动画，可以播放多个

//spineAnimationState.setMix("walk", "attack", 0.2f);//混合动画，衔接动画；B动画 在 A动画 播放多久开始衔接播放 

//隐藏物体

m_obj.SetActive(false);

//显示物体

//m_obj.SetActive(true);

}

        //按下空格键来截图

        //if (Input.GetKeyDown(KeyCode.Space))

        {

            //将目标摄像机的图像显示到一个板子上

            //pl.GetComponent().material.mainTexture = rt;

//CreateSharedMemory();

            //截图到t2d中

            RenderTexture.active = rt;  

//int width = rt.width;

//int height = rt.height;

//Debug.Log("当前截图宽为："+width.ToString());

//Debug.Log("当前截图高为："+height.ToString());

            t2d.ReadPixels(new Rect(0, 0, rt.width, rt.height), 0, 0);

            t2d.Apply();

            RenderTexture.active = null;

            //将图片保存起来

           // byte[] byt = (byte[])t2d.EncodeToPNG().Clone();

byte[] byt = t2d.EncodeToPNG();

int test_length = byt.Length;

//Debug.Log("当前截图长度为："+test_length.ToString());

           // File.WriteAllBytes(Application.dataPath + "//"+ num.ToString() +".png", byt);

//var data = t2d.GetRawTextureData();

 

//SetVCamData(byt, 800, 600, test_length);

           // Debug.Log("当前截图序号为："+num.ToString());

           // num++;

        }          

    }

void LoadFromFile(string path,string _name)

    {

        m_Tex = new Texture2D(1, 1);

       // m_Tex.LoadImage(ReadPNG(path+ _name));

m_Tex.LoadImage(ReadPNG(path));

    }

byte[] ReadPNG(string path)

    {

        FileStream fileStream = new FileStream(path, FileMode.Open, FileAccess.Read);

 

        fileStream.Seek(0, SeekOrigin.Begin);

 

        byte[] binary = new byte[fileStream.Length]; //创建文件长度的buffer

        fileStream.Read(binary, 0, (int)fileStream.Length);

 

        fileStream.Close();

 

        fileStream.Dispose();

 

        fileStream = null;

 

        return binary;

    }

 

 

}