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

public class OneKeyOperation : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        
    }
    public void AllOpen()
    {
        foreach(Transform child in transform.Find("Sliders").transform)
        {
            StartCoroutine(SmoothIncreaseToTwo(0.3f, child));
        }
        
    }
    public void AllClose()
    {
        foreach (Transform child in transform.Find("Sliders").transform)
        {
            StartCoroutine(SmoothDecreaseToZero(0.3f, child));
        }

    }

    IEnumerator SmoothDecreaseToZero(float duration,Transform child )
    {
        float startValue = child.GetComponent<Slider>().value;
        float time = 0f;
        while (time < duration)
        {
            time += Time.deltaTime;
            startValue = Mathf.Lerp(startValue, 0f, time / duration);
            child.GetComponent<Slider>().value = startValue;
            yield return null;
        }
        child.GetComponent<Slider>().value = 0f;
    }

    IEnumerator SmoothIncreaseToTwo(float duration, Transform child)
    {
        float startValue = child.GetComponent<Slider>().value;
        float time = 0f;
        while (time < duration)
        {
            time += Time.deltaTime;
            startValue = Mathf.Lerp(startValue, 2f, time / duration);
            child.GetComponent<Slider>().value = startValue;
            yield return null;
        }
        child.GetComponent<Slider>().value = 2f;
    }
}