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

public class Curtain : MonoBehaviour
{
    public Vector3 startPos;//移动目标
    public bool curState;
    public float Speed;
    Vector3 birthPlace;
    public float scale;//缩放尺寸
    float birthScalex;
    int flag;//窗帘缩放方向
    bool isEnd;//行为是否结束
    private void Awake()
    {
        birthPlace = transform.position;
        birthScalex = transform.localScale.x;
        isEnd = true;
    }

    public void open() {
        StartCoroutine(Run(birthPlace));
        StartCoroutine(Scale(birthScalex));
    }

    public void close() {
        StartCoroutine(Run(startPos));
        StartCoroutine(Scale(scale));
    }

    public void onClick() {
        if (!isEnd) return;
        TaskCenter.GetInstance().FinishTask(2);
        if (curState)
        {
            curState = false;
            close();
        }
        else {
            curState = true;
            open();
        }
        isEnd = false;
    }

    IEnumerator  Run(Vector3  tragetpos) {
        Vector3 dir = tragetpos - transform.position;
        while (true) {
            yield return new WaitForEndOfFrame();
            transform.position += dir * Speed * Time.deltaTime;
            if (Vector3.Distance(tragetpos, transform.position)<=0.05f) {
                isEnd = true;
                break;
            }
        }
    }

    IEnumerator Scale(float targetscale)
    {
        while (true)
        {
            yield return new WaitForEndOfFrame();
            float x = transform.localScale.x;
            float power = targetscale - x ;
            if (power > 0)
            {
                flag = 1;
            }
            else {
                flag = -1;
            }
            x += flag * Speed * Time.deltaTime;
            transform.localScale = new Vector3(x,transform.localScale.y,transform.localScale.z);
            if (Mathf.Abs(power)<=0.05) {
                break;
            }
        }
    }
}