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

public class Screenshot : MonoBehaviour
{
    public Sprite[] sprites;
    public GameObject errtip;
    List<int> arr = new List<int>();
    int imgCount=-1;
    void Start()
    {
        GetComponent<Button>().onClick.AddListener(() => {
            addImages();
        });
    }
    //截图
    Texture2D ShotImg(Camera camera) {
        RenderTexture.active = camera.activeTexture;
        Texture2D texture = new Texture2D(camera.activeTexture.width, camera.activeTexture.height, TextureFormat.RGB24, false);
        Rect rect = new Rect(0, 0, camera.activeTexture.width, camera.activeTexture.height);
        texture.ReadPixels(rect, 0, 0);
        texture.Apply();
        return texture;
    }
    //添加到图片集
    void addImages(Texture2D texture2D) {
        Sprite sprite = Sprite.Create(texture2D, new Rect(0, 0, texture2D.width, texture2D.height), new Vector2(0.5f, 0.5f));
        GameObject img = new GameObject();
        img.AddComponent<Image>();
        img.GetComponent<Image>().sprite = sprite;
        img.transform.SetParent(GameObject.FindWithTag("Images").transform);
    }

    void addImages()
    {
        if (arr.Contains(LevelBase.Instance.curArea)) {
            errtip.SetActive(true);
            errtip.transform.GetChild(0).GetComponent<Text>().text = "当前区域已经采集";
            return;
        }
        arr.Add(LevelBase.Instance.curArea);
        imgCount++;
        if (imgCount >= sprites.Length) return;
        GameObject img = new GameObject();
        img.AddComponent<Image>();
        img.GetComponent<Image>().sprite = sprites[imgCount];
        img.transform.SetParent(GameObject.FindWithTag("Images").transform);
    }
}