using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UltraCombos;
using UnityEngine;
using UnityEngine.EventSystems;

public class FlakeSpawner : MonoBehaviour
{
    // Start is called before the first frame update
    public Rect roiFilterSrc;
    public Rect roiFilterDst;

    public GameObject prefab;

    public DShowClip[] clips;

    void Update()
    {
        if (EventSystem.current == null || EventSystem.current.currentInputModule == null)
            return;

        BaseInput input = EventSystem.current.currentInputModule.input;

        if (input.GetMouseButton(0))
        {
            TrySpawn(input.mousePosition);
        }

        for (int i = 0; i < input.touchCount; i++)
        {
            Touch t = input.GetTouch(i);
            TrySpawn(t.position);
        }
    }
    List<RaycastResult> raycastResults = new List<RaycastResult>();

    void TrySpawn(Vector2 position)
    {
        position = Rect.PointToNormalized(roiFilterSrc, position);
        position = Rect.NormalizedToPoint(roiFilterDst, position);
        PointerEventData data = new PointerEventData(EventSystem.current);
        data.position = position;
        raycastResults.Clear();
        EventSystem.current.RaycastAll(data, raycastResults);
        bool found = raycastResults.Select(r => r.gameObject.layer == LayerMask.NameToLayer("Flake")).Any(b => b);
        if (found)
            return;

        GameObject obj = Instantiate(prefab, transform.parent);
        (obj.transform as RectTransform).anchoredPosition = position;
        obj.GetComponent<DShowPooledMoviePlayer>().VideoAsset = clips[Random.Range(0, clips.Length)];
    }
}