using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using ChivaXR;
using System;
using Sirenix.OdinInspector;

public class AniDriver_UVOffset : AnimationDriverBase
{
    public TimeType AniTimeType = TimeType.aniFrame;

    [ShowIf("AniTimeType", Value = TimeType.aniFrame)]
    [LabelWidth(50)]
    [HorizontalGroup("frame")]
    [LabelText("起始帧")]
    public int startFrame;
    [ShowIf("AniTimeType", Value = TimeType.aniFrame)]
    [LabelWidth(50)]
    [HorizontalGroup("frame")]
    [LabelText("结束帧")]
    public int endFrame;
    [LabelWidth(100)]
    [ShowIf("AniTimeType", Value = TimeType.aniFrame)]
    [LabelText("动画FPS")]
    public float aniFPS = 30;

    [ShowIf("AniTimeType", Value = TimeType.time)]
    [LabelText("动画开始时间")]
    [LabelWidth(100)]
    [HorizontalGroup("time")]
    public float startTime = 0;
    [ShowIf("AniTimeType", Value = TimeType.time)]
    [LabelText("动画结束时间")]
    [LabelWidth(100)]
    [HorizontalGroup("time")]
    public float endTime = 0;
    
    [LabelWidth(100)]
    public Vector2 startUVOffset;
    [LabelWidth(100)]
    public Vector2 endUVOffset;

    public MeshRenderer target;

    public override void FinishedState()
    {
        target.material.SetTextureOffset("_MainTex", endUVOffset);
    }

    public override void InitState()
    {
        target.material.SetTextureOffset("_MainTex", startUVOffset);
    }


	public override void StartPlay(Action finishedCallBack = null)
    {
        StartAniCoroutine(PlayUVAni(finishedCallBack));
    }

    IEnumerator PlayUVAni(Action finishedCallBack=null)
    {
        float allRunningTime = 0;
        float currentRunningTime = 0;
        switch (AniTimeType)
        {
            case TimeType.time:
                yield return new WaitForSeconds(startTime);
                allRunningTime = endTime - startTime;
                break;
            case TimeType.aniFrame:
                yield return new WaitForSeconds(startFrame / aniFPS);
                allRunningTime = (endFrame - startFrame) / aniFPS;
                break;
        }

        while (currentRunningTime < allRunningTime)
        {
            currentRunningTime += Time.deltaTime;
            target.material.SetTextureOffset("_MainTex", Vector2.Lerp(startUVOffset, endUVOffset, currentRunningTime / allRunningTime));
            yield return new WaitForEndOfFrame();
        }

        target.material.SetTextureOffset("_MainTex", Vector2.Lerp(startUVOffset, endUVOffset, 1));
        finishedCallBack?.Invoke();
    }
}