/**************************************************
FileName:ObjectPool
Date:19/12/5
Version:0.1
Function List:热力图颜色赋值
****************************************************
****************************************************/
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class heatControl : MonoBehaviour
{
    List<float> heatPointValue = new List<float>(); //所有顶点对应的颜色的值
    List<Vector3> heatPointVec = new List<Vector3>();//所有顶点
    MeshFilter meshFilter;

    public void mapBigen(List<HeatMapDate> heatMapDate, float High, GameObject self)
    {
        ReadMash(self); //得到所有的顶点
        Inject(HeatPointValue(), heatMapDate, High);
    }
    public void Inject(List<float> temperature, List<HeatMapDate> LayerDate, float High)
    {
        // 算法添加高温点
        for (int i = 0; i < LayerDate.Count; i++)
        {
            RandomTeamperatureone(LayerDate[i].People, LayerDate[i].Range, new Vector3(LayerDate[i].Xpos, 0, LayerDate[i].Zpos), ref temperature);
        }
        Generate(0.1f);
        Genereat(0.1f, LayerDate[0].Range, new Vector3(LayerDate[0].Xpos, 0, LayerDate[0].Zpos));
     //   

        // 赋值颜色
        AddVertexColor(meshFilter);
    }

    public void CreateMesh()
    {

    }

    //得到所有的顶点
    void ReadMash(GameObject self)
    {
        meshFilter = self.transform.GetComponent<MeshFilter>();
        int Length = meshFilter.mesh.vertices.Length;

        for (int i = 0; i < Length; i++)
        {
            heatPointVec.Add(meshFilter.mesh.vertices[i]);
            //Debug.Log(heatPointVec[i]);
        }
    }
    // 初始化算法
    private List<float> HeatPointValue()
    {
        heatPointValue.Clear();
        for (int i = 0; i < heatPointVec.Count; i++)
        {
            // 假定正常人数为40人低于40人均为正常温度
            heatPointValue.Add(40);
        }
        return heatPointValue;
    }
    /// <summary>
    /// 得到点属性数据
    /// </summary>
    /// <param name="MaxPeopleNum">最大人数</param>
    /// <param name="range">影响范围</param>
    /// <param name="pox">x位置</param>
    /// <param name="temperatures">点属性数据</param>
    private void RandomTeamperatureone(float MaxPeopleNum, int range, Vector3 pos, ref List<float> temperatures)
    {
        for (int i = 0; i < temperatures.Count; i++)
        {
            int num = i;
            float distance = Mathf.Sqrt(Mathf.Pow(Vector3.Distance(heatPointVec[i], pos), 2)); //算距离
            if (distance <= range)
            {
                float ratio = 1 - (distance / range);//ratio等于0到1
                float temp = ratio * MaxPeopleNum;
                if (MaxPeopleNum > 160)
                {
                    temp = ratio * MaxPeopleNum*1.5f ;  //1.1f是基数，调整美观的
                }
                if (temp > MaxPeopleNum)
                {
                    temp = MaxPeopleNum;
                }
                // 只有比当前点人数高才选择覆盖
                if (temp > heatPointValue[num])
                    heatPointValue[num] = temp;
            }
        }

        //for (int i = 0; i < temperatures.Count; i++)
        //{
        //    int num = i;
        //    float distance = Mathf.Sqrt(Mathf.Pow(Vector3.Distance(heatPointVec[i], pos), 2)); //算距离
        //    if (distance <= range * 1.5f && distance > range)
        //    {
        //        float ratio = 1 - (distance / range);//ratio等于0到1
        //        float temp = ratio * MaxPeopleNum;
        //        // 只有比当前点人数高才选择覆盖
        //        if (temp > heatPointValue[num])
        //            heatPointValue[num] = temp;
        //    }
        //    else if (distance < range)
        //    {
        //        float ratio = 1 - (distance / range);//ratio等于0到1
        //        if (ratio < 0.7f)
        //        {
        //            ratio = 0.7f;
        //        }
        //        float temp = ratio * MaxPeopleNum;
        //        // 只有比当前点人数高才选择覆盖
        //        if (temp > heatPointValue[num])
        //            heatPointValue[num] = temp;
        //    }
        //}

    }

    /// <summary>
    /// 增加颜色数据
    /// </summary>
    /// <param name="meshFilter"></param>
    private void AddVertexColor(MeshFilter meshFilter)
    {
        Color[] colors = new Color[heatPointValue.Count];
        for (int i = 0; i < heatPointValue.Count; i++)
        {
            colors[i] = CalcColor(heatPointValue[i]);
        }
        meshFilter.mesh.colors = colors;
    }

    Color CalcColor(float temperature)
    {

        Color colorOne = new Color();
        if (temperature <=40)
        {
            //colorOne = Color.Lerp(new Color(1, 0, 1, 0), new Color(0, 1, 1, 0), (temperature) * 0.025f);//无
            colorOne = Color.Lerp(new Color(0, 1, 1, 0f), new Color(0, 1, 0), (temperature - 30) * 0.025f);//篮
        }
        else if (temperature >40 && temperature < 80)
        {
            colorOne = Color.Lerp(new Color(0, 1, 1, 0f), new Color(0, 1, 0), (temperature - 40) * 0.025f);//篮
        }
        else if (temperature >= 80 && temperature < 100)
        {
            // Debug.Log((temperature - 80) * 0.025f);
            colorOne = Color.Lerp(new Color(0, 1, 0), new Color(1, 1, 0), (temperature - 80) * 0.025f); //绿
        }
        else if (temperature >= 100 && temperature < 160)
        {
            colorOne = Color.Lerp(new Color(1f, 1f, 0f), new Color(1f, 0f, 0f), (temperature - 120) * 0.025f); //黄=>红
        }
        else
        {
            colorOne = new Color(1f, 0f, 0f, 1f); //红
        }

        return colorOne;
    }
    /// <summary>
    /// 生成mesh
    /// </summary>
    /// <param name="high">基本高度</param>
    public void Generate(float high)
    {

        Vector3[] vertices = new Vector3[heatPointVec.Count];

        for (int i = 0; i < heatPointVec.Count; i++)
        {
            vertices[i] = new Vector3(heatPointVec[i].x, heatPointValue[i] *high, heatPointVec[i].z);

           
        }
        meshFilter.mesh.vertices = vertices;
    }

    public void Genereat(float high, float range ,Vector3 pos)
    {
        Vector3[] vertices = new Vector3[heatPointVec.Count];

        for (int i = 0; i < heatPointVec.Count; i++)
        {
            vertices[i] = new Vector3(heatPointVec[i].x, heatPointValue[i] * high, heatPointVec[i].z);

            float distance = Mathf.Sqrt(Mathf.Pow(Vector3.Distance(heatPointVec[i], pos), 2)); //算距离
            if (heatPointValue[i]>40&& distance<= range)
            {
                // 生成球形的原理，是求出这个点在球体上的高度。 //range 球的半径（斜边）   distance 是平面上点到圆心的距离（其中一条直角边）  求出高（另一条直角边）
                float y = Mathf.Sqrt((Mathf.Pow(range, 2) - Mathf.Pow(distance, 2)));

                vertices[i] = new Vector3(heatPointVec[i].x, y, heatPointVec[i].z);

            }
        }
        meshFilter.mesh.vertices = vertices;

    }
}