powerfun-unity/Assets/Scripts/Utils/Toast.cs

using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class Toast : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        if (toast!=null) 
        {
            //toast.SetActive(false);
            //txt = toast.transform.Find("Toast").GetComponent<Text>();
        }
        //if (txt != null) 
        //{
        //    txt.enabled = false;
        //}
    }

    // Update is called once per frame
    void Update()
    {
        
    }
    [SerializeField] GameObject toast;
    [SerializeField] Text txt;

    public void showToast(Assets.Scripts.Utils.ToastParams json)
    {
        gameObject.SetActive(true);
        if (json.func == null) 
        {
            json.func = () => false;
        }
        StartCoroutine(showToastCOR(json.text, json.duration,json.func,json.showSeconds,json.endCallback));
    }

    private IEnumerator showToastCOR(string text,
        int duration, Func<bool> action,bool showSeconds,Action endCallback)
    {
        
        gameObject.SetActive(true);
        if (showSeconds)
        {
            txt.text = text + $"({duration}s)";
        }
        else 
        {
            txt.text = text;
        }
        //Fade in
        yield return fadeInAndOut(txt, true, 0.5f);

        //Wait for the duration
        float counter = 0,timer = 1f;
        int seconds = 0;
        while (counter < duration && !action.Invoke())
        {
            counter += Time.deltaTime;
            if (showSeconds) 
            {
                timer -= Time.deltaTime;
                if (timer < 0)
                {
                    txt.text = text + $"({duration - (++seconds)}s)";
                    timer += 1f;
                }
            }
            yield return null;
        }
        if (endCallback != null) 
        {
            endCallback.Invoke();
        }
        //Fade out
        yield return fadeInAndOut(txt, false, 0.5f);
        
        gameObject.SetActive(false);
    }

    IEnumerator fadeInAndOut(Text targetText, bool fadeIn, float duration)
    {
        //Set Values depending on if fadeIn or fadeOut
        float a, b;
        if (fadeIn)
        {
            a = 0f;
            b = 1f;
        }
        else
        {
            a = 1f;
            b = 0f;
        }

        float counter = 0f;

        while (counter < duration)
        {
            counter += Time.deltaTime;
            float alpha = Mathf.Lerp(a, b, counter / duration);
            transform.GetComponent<CanvasGroup>().alpha = alpha;
            yield return null;
        }
    }
}