Month: May 2022

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

public class PathReader : MonoBehaviour
{
    public GameObject MarkStart, MarkGoal, MarkFP;
    public float smooth_distance;
    public TextAsset filename;
    //private List<string> file_data_line;
    private List<Vector3> positions, rotations;

    private LineRenderer lineRenderer;

    void Awake()
    {
        lineRenderer = GetComponent<LineRenderer>();
        //file_data = System.IO.File.ReadAllLines(filename_path);
        //Debug.Log(filename);
    }

    void Start()
    {
        List<string> file_data_each_line = TextAssetToListString(filename);
        ListStringToListVector(file_data_each_line, out positions, out rotations, smooth_distance);
        //MapToGroundPosition(); //cannot change the value of List<Vector3> after assigned.

        //Assign positinos to line renderer
        lineRenderer.positionCount = positions.Count;
        lineRenderer.SetPositions(positions.ToArray());

        //Assign Mark object position
        MarkStart.transform.position = positions[0];
        MarkGoal.transform.position = positions[positions.Count-1];
        MarkFP.transform.position = positions[1];

        Debug.Log("Positions count = " + positions.Count);
    }

    private List<string> TextAssetToListString(TextAsset ta)
    {
        return new List<string>(ta.text.Split('\n'));
    }


    private void ListStringToListVector(List<string> list_text, out List<Vector3> list_pos, out List<Vector3> list_rot, float smd)
    {
        list_pos = new List<Vector3>();
        list_rot = new List<Vector3>();

        // 1st line is label
        // 2nd line add to thevector
        string[] columns = list_text[1].Split(',');
        Vector3 load_position = new Vector3(float.Parse(columns[1]), 0f, float.Parse(columns[3])); //set y to ground
        Vector3 load_rotation = new Vector3(float.Parse(columns[4]), float.Parse(columns[5]), float.Parse(columns[6]));
        positions.Add(load_position);
        rotations.Add(load_rotation);

        for (int i = 2; i < list_text.Count; i++) // from 3nd line, check distance before add to the vector
        {
            //Debug.Log(line);
            columns = list_text[i].Split(',');

            if (columns.Length != 7) // not enough information to extract (end of line)
                return;

            //Debug.Log(i+" "+columns.Length);

            //Vector3 load_position = new Vector3(float.Parse(columns[1]), float.Parse(columns[2]), float.Parse(columns[3]));
            load_position = new Vector3(float.Parse(columns[1]), 0f, float.Parse(columns[3])); //set y to ground
            load_rotation = new Vector3(float.Parse(columns[4]), float.Parse(columns[5]), float.Parse(columns[6]));

            if(Vector3.Distance(positions[positions.Count-1], load_position) > smd)
            {
                positions.Add(load_position);
                rotations.Add(load_rotation);
            }

        }
    }



}