using System;
using UnityEngine;
using System.Runtime.InteropServices;
using GPUECSAnimationBaker.Engine.AnimatorSystem;
using Random = UnityEngine.Random;

public class MyPlugin : MonoBehaviour
{

    
    
    
    
    public Material material;
    public Mesh mesh;
    const int numInstances = 10;

    struct MyInstanceData
    {
        public Matrix4x4 objectToWorld;
        public float myOtherData;
        public uint renderingLayerMask;
    };

    // void Update()
    // {
    //     RenderParams rp = new RenderParams(material);
    //     MyInstanceData[] instData = new MyInstanceData[numInstances];
    //     for(int i=0; i<numInstances; ++i)
    //     {
    //         instData[i].objectToWorld = Matrix4x4.Translate(new Vector3(-4.5f+i, 0.0f, 5.0f));
    //         instData[i].renderingLayerMask = (i & 1) == 0 ? 1u : 2u;
    //     }
    //     Graphics.RenderMeshInstanced(rp, mesh, 0, instData);
    // }
    
    void Update()
    {
        MaterialPropertyBlock  _materialPropertyBlock = new MaterialPropertyBlock();
        
        RenderParams rp = new RenderParams(material);
       
        Matrix4x4[] instData = new Matrix4x4[numInstances];
        Vector4[] colors = new Vector4[numInstances];
        Matrix4x4[] animMatrix4X4s = new Matrix4x4[numInstances];
        for (int i = 0; i < numInstances; ++i)
        {
            colors[i] = new Color(Random.Range(0f,1f), Random.Range(0f,1f), Random.Range(0f,1f));
            instData[i] = Matrix4x4.Translate(new Vector3(-4.5f + i, 0.0f, 5.0f));
            animMatrix4X4s[i]= Matrix4x4.TRS(new Vector3(0, 0, 0), Quaternion.identity, new Vector3(1, 1, 1));
        }

        // colors[0] = Color.green;
        // colors[1] = Color.red;
        // _materialPropertyBlock.
        _materialPropertyBlock.SetVectorArray("_mainColor",colors);
        _materialPropertyBlock.SetMatrixArray("_AnimationState",animMatrix4X4s);
        rp.matProps = _materialPropertyBlock;
        Graphics.RenderMeshInstanced(rp, mesh, 0, instData, numInstances,0);
    }
    
    
    
    
    
    // public GPUAnimtion GPUAnimtion;
    //
    // public int index;
    //
    // private void Start()
    // {
    //     GPUAnimtion = new GPUAnimtion();
    //     GpuEcsAnimatorBehaviour gpuEcsAnimatorBehaviour=  gameObject.transform.GetComponentInChildren<GpuEcsAnimatorBehaviour>();
    //     GPUAnimtion.Init(gpuEcsAnimatorBehaviour);
    // }
    //
    // [ContextMenu("dsada")]
    // public void TestSet()
    // {
    //     GPUAnimtion.SetAnimtionIndex(index);
    // }
    //
    // private void Update()
    // {
    //     GPUAnimtion.Update();
    //     // Graphics.DrawMeshInstanced();
    // }
    
    // // 声明C++函数
    // [DllImport("ThreadTool")]
    // private static extern int Add(int a, int b);
    //
    // [DllImport("ThreadTool")]
    // private static extern void CallCSharpFunction(Callback callback);
    //
    // // 定义回调委托
    // public delegate int Callback(int value);
    //
    // // C#回调函数
    // private int MyCallback(int value)
    // {
    //     Debug.Log("C# received value from C++: " + value);
    //     return value * 2;
    // }
    //
    // void Start()
    // {
    //     // 调用C++函数
    //     int result = Add(5, 3);
    //     Debug.Log("Result from C++: " + result);  // 输出: Result from C++: 8
    //
    //     // 注册C#回调函数并调用C++函数
    //     CallCSharpFunction(MyCallback);
    // }
}