using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class TestRoute : MonoBehaviour
{
    public Vector2 Interval = new Vector2(0, -0.02f);
    /// <summary>
    /// 旋转方向
    /// </summary>
    public Transform point;
    public List<Material> list_material;
    public Vector3 endPos;
    public Vector3 exitPos;
    public Transform A;
    public Transform B;

    private Material material;
    private Vector2 offset;
   
    void Start()
    {
        material = this.GetComponent<MeshRenderer>().material;
        offset = Vector2.zero;

       // Test();
    }

    // Update is called once per frame
    void Update()
    {
        offset -= Interval;
        material.SetTextureOffset("_MainTex", offset);
    }

    /// <summary>
    ///  设置Route 位置 长度 朝向 旋转
    /// </summary>
    /// <param name="endPos"></param>
    /// <param name="exitPos"></param>
    public void SetRoute( Vector3 endPos, Vector3 exitPos )
    {
        if (material == null)
            material = this.GetComponent<MeshRenderer>().material;

        this.endPos = endPos;
        this.exitPos = exitPos;
       transform.localScale += new Vector3(0, 0, Mathf.Abs( Vector3.Distance(endPos,exitPos) )/12f - (transform.localScale.x * 2));     
        material.SetTextureScale("_MainTex", new Vector2(1, Mathf.Abs(Vector3.Distance(endPos, exitPos))*1.5f));
        Vector3 pos = endPos + (exitPos - endPos).normalized * (Vector3.Distance(endPos, exitPos));
        transform.position = (exitPos+endPos)/2.0f + new Vector3(0, -2f, 0);
        Debug.Log("Route    " + endPos + "    " + exitPos +"    "+ transform.position);
        point.position = endPos + new Vector3(0, transform.position.y, 0);
        transform.LookAt(point);
    }

    public void SetRoute(Vector3 endPos, Vector3 exitPos ,int Index)
    {
        this.GetComponent<MeshRenderer>().material = list_material[Index];
        if (material == null)
            material = this.GetComponent<MeshRenderer>().material;
        this.endPos = endPos;
        this.exitPos = exitPos;
     //   Debug.Log("Route    " + endPos + "    " + exitPos);
        transform.localScale += new Vector3(0, 0, Mathf.Abs(Vector3.Distance(endPos, exitPos))/12 -(transform.localScale.x*2));
        material.SetTextureScale("_MainTex", new Vector2(1, Mathf.Abs(Vector3.Distance(endPos, exitPos)) * 1.5f));
        Vector3 pos = endPos + (exitPos - endPos).normalized * (Vector3.Distance(endPos, exitPos));
        transform.position = (exitPos + endPos) / 2.0f + new Vector3(0, -2f, 0);
        point.position = endPos + new Vector3(0, transform.position.y, 0);
        transform.LookAt(point);
    }

    /// <summary>
    /// 3DMapRoute
    /// </summary>
    /// <param name="endPos"></param>
    /// <param name="exitPos"></param>
    public void SetMapRoute()
    {
        if (material == null)
            material = this.GetComponent<MeshRenderer>().material;
        material.SetTextureScale("_MainTex", new Vector2(1, 2f));
    }
    public void SetMapRoute( Vector3 endPos , Vector3 exitPos)
    {
        if (material == null)
            material = this.GetComponent<MeshRenderer>().material;
        material.SetTextureScale("_MainTex", new Vector2(1, Mathf.Abs(Vector3.Distance(endPos, exitPos)) * 0.7f));
    }
       
    public void Test()
    {
        SetRoute(A.position, B.position);
    }
     
}