Tracking playing position into an array

Question

I'm trying to track playing position every 500ms which i can do but i need it to populate an array which i save to a txt file as a comma delimted list or something.

I have this code so far (which incorporates the player movement code too), which displays the positions in the console:

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

public class CharacterControllerT : MonoBehaviour {

    public float speed = 10.0f;
    public Read_moveT ReadMove;
    [SerializeField] private float _duration = 0.5f;
    private float _timer = 0f;
    public Vector3 PlayerPosT;
    GameObject Mover;
    public Vector3[] PlayerTxyz;

    // Use this for initialization
    void Start () {
        Cursor.lockState = CursorLockMode.Locked;
        Mover = GameObject.Find ("PlayerT");
        ReadMove = Mover.GetComponent<Read_moveT> ();
    }

    // Update is called once per frame
    void Update () {

        if (!Input.GetButton ("DoorTrigger")) {
            ReadMove.mUP = Input.GetAxis ("Vertical");
            ReadMove.mLEFT = Input.GetAxis ("Horizontal");
            float translation = ReadMove.mUP * speed;
            float straffe = ReadMove.mLEFT * speed;

            translation *= Time.deltaTime;
            straffe *= Time.deltaTime;

            transform.Translate (straffe, 0, translation);
        }

        if (Input.GetKeyDown ("escape")) {
            Cursor.lockState = CursorLockMode.None;
        }


        _timer += Time.deltaTime;
        if (_timer >= _duration) {
            _timer = 0f;
            PlayerPosT = Mover.transform.position;
            print ("Player:: X: " + PlayerPosT.x + ", Z: " + PlayerPosT.z);
        }
    }
}

I just need these coords to be saved into an array that i can process when the game is over. The problem being that the array will always be (until game over) of undetermined length.

Any ideas?

Thanks,

Paul..

Answer 1

You can initialize a List<Vector3> and then when you need to save the position just call it with the List.Add(Vector3) like the following. Note that saving process better be done outside of your CharacterControllerT script in order not to lose the saved positions if you destroy the character or something.

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

public class PositionRecorder : MonoBehaviour {

    private static List<Vector3> savedPositions;

    // Use this for initialization
    void Start () {
        savedPositions = new List<Vector3>();
    }

    public static void SavePosition(Vector3 position){
        savedPositions.Add(position);
    }
}

Then call it from outside like positionRecorder.SavePosition(PlayerPosT)