arskrald/AR-3/Assets/make_text.cs

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

public class make_text : MonoBehaviour, ITrackableEventHandler
{
    private TrackableBehaviour mTrackableBehaviour;
    private TextMesh textQuad;

    public void OnTrackableStateChanged(TrackableBehaviour.Status previousStatus, TrackableBehaviour.Status newStatus)
    {
        if (newStatus == ImageTargetBehaviour.Status.TRACKED ||
            newStatus == ImageTargetBehaviour.Status.DETECTED ||
            newStatus == ImageTargetBehaviour.Status.EXTENDED_TRACKED)
        {

            var rotation = gameObject.transform.rotation.eulerAngles.y;
            print($"The rotation: {rotation}");
            print($"rotation / 45: {rotation / 45}");
            var letter = gameObject.name[(int)(rotation / 45)].ToString();
            print($"The letter: {letter}");


            if (letter == "1")
            {
                textQuad.text = textQuad.text.Remove(textQuad.text.Length - 1);
            }
            else if (letter == "0")
            {
                textQuad.text += " ";
            } else if (letter == "9")
            {
                textQuad.text += "<3";
            }
            else
            {
                textQuad.text += letter;
            }
        }
    }

    // Start is called before the first frame update
    void Start()
    {
        textQuad = GameObject.Find("TextQuad").GetComponent<TextMesh>();

        mTrackableBehaviour = GetComponent<TrackableBehaviour>();
        if (mTrackableBehaviour)
        {
            mTrackableBehaviour.RegisterTrackableEventHandler(this);
        }
    }

    // Update is called once per frame
    void Update()
    {
        var rotation = gameObject.transform.rotation.eulerAngles.y;
        print($"The rotation: {rotation}");
        print($"rotation / 45: {rotation / 45}");
    }
}